Simplicity MOBILE HEATER, MH500IQ FCS Руководство пользователя

Operator’s Manual

Maxi-Heat

®

Mobile Heater

Part No.: 108284RU

Revision: B

en

Руководство оператора

Мобильный нагреватель Maxi-Heat

®

ru

Not for

Reproduction

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www.allmand.com

Record Important Information

Recording the equipment information will help when placing

an order for replacement parts and/or decals.

Company Equipment No:____________________________

Unit model No:____________________________________

Unit Vin:_________________________________________

Engine Model No: ____________Serial No:_____________

Generator Model No:__________Serial No:_____________

Accessories:_____________________________________

_______________________________________________

Manual Contents:

Introduction ........................................................................2

Safety ...................................................................................2

Features and Controls .......................................................9

Transporting ..................................................................... 12

Operation ......................................................................... 18

Maintenance .................................................................... 29

Specifications .................................................................. 33

Troubleshooting .............................................................. 35

Introduction

About This Manual

TAKE TIME TO READ THIS MANUAL THOROUGHLY

This instruction manual provides necessary instructions for

the MAXI-HEAT mobile heater.

The information found in this manual is in effect at the time

of printing. Allmand Bros Inc. may change contents without

notice and without incurring obligation.

Any reference in this manual to left or right shall be deter-

mined by looking at the trailer from the rear.

If you are uncertain about any of the information in the man-

ual, contact Allmand service department at 1-800-562-1373,

or contact us through the Allmand website, www.allmand.

com.

Save these original instructions for future reference.

Products Covered by This Manual

The following products are covered by this manual:

Maxi-Heat

®

MH500iQ Mobile Heater

Maxi-Heat

®

MH500iQ FCS Mobile Heater

Safety

Safety Definitions

Safety statements are one of the primary ways to call your

attention to potential hazards. Follow the precautions listed

throughout the manual before operation, during operation

and during periodic maintenance procedures for your safety,

the safety of others and to protect the performance of equip-

ment. Keep the decals from becoming dirty or torn and

replace them if they are lost or damaged. Also, if a part needs

to be replaced that has a decal attached to it, make sure to

order the new part and decal at the same time.

This safety alert symbol appears with most safety

statements. It means attention, become alert, your

safety is involved! Read and abide by the message

that follows the safety alert symbol.

DANGER

Indicates a hazardous situation which, if not avoided, will

result in death or serious injury.

WARNING

Indicates a hazardous situation which, if not avoided, could

result in death or serious injury.

CAUTION

Indicates a hazardous situation which, if not avoided, could

result in minor or moderate injury.

NOTICE

Indicates a situation which can cause damage to the equip-

ment, personal property and/or the environment, or cause the

equipment to operate improperly.

Safety Precautions

The following section contains general safety precautions

and guidelines that must be followed to reduce risk to per-

sonal safety. Special safety precautions are listed in specific

procedures. Read and understand all of the safety precau-

tions before operating or performing repairs or maintenance.

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DANGER

Electrocution Hazard

• Servicing electrical components while the engine is

running will result in death or serious injury. Always

shut down the engine before servicing electrical com-

ponents.

• Capacitors are capable of discharging high volt-

age that will result in death or serious injury. Always

shutdown the engine, then discharge capacitors by

grounding them with an insulated device.

• Contact with wires that have been made bare by dam-

aged, cut, or worn insulation will result in death or

serious injury. Always replace damaged wiring before

starting the engine or operating the unit.

WARNING

Unsafe Operation Hazard

• Never permit anyone to install or operate the equip-

ment without proper training.

• Read and understand this Operator’s Manual and the

Engine Operator’s Manual before operating or servic-

ing the light tower to ensure that safe operating prac-

tices and maintenance procedures are followed.

• Safety signs and decals are additional reminders for

safe operating and maintenance techniques.

WARNING

Fall Hazard

• Never carry riders on the equipment.

WARNING

Modification Hazard

• Never modify the equipment without written consent of

the manufacturer. Any modification can effect the safe

operation of the equipment.

WARNING

Exposure Hazard

• Always wear personal protective equipment, including

appropriate clothing, gloves, work shoes, and eye and

hearing protection, as required by the task at hand.

WARNING

Explosion Hazard

• While the engine is running or the battery is charging,

hydrogen gas is being produced and can be easily

ignited. Keep the area around the battery well venti-

lated and keep sparks, open flame and any other form

of ignition out of the area.

• Always disconnect the negative (-) battery cable

before servicing equipment.

• Only use the starting procedure as described in the

Engine Operator’s Manual to start the engine.

• Never charge a frozen battery. Always slowly warm the

battery to room temperature before charging.

WARNING

Fire And Explosion Hazard

• Diesel fuel is flammable and explosive under certain

conditions.

• Never use a shop rag to catch fuel.

• Wipe up all spills immediately.

• Never refuel with the engine running.

• Store any containers containing fuel in a well venti-

lated area, away from any combustibles or sources of

ignition.

WARNING

Exhaust Hazard

• All internal combustion engines create carbon monox-

ide gas during operation and special precautions are

required to avoid carbon monoxide poisoning.

• Never block windows, vents or other means of ventila-

tion if the equipment is operating in an enclosed area.

• Always ensure that all connections are tightened to

specifications after repair is made to the exhaust sys-

tem.

WARNING

Alcohol And Drug Hazard

• Never operate the light tower while under the influence

of alcohol or drugs, or when ill.

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WARNING

Entanglement / Sever Hazard

• Always stop the engine before beginning service.

• If the engine must be serviced while it is operating,

remove all jewelry, tie back long hair and keep hands,

other body parts and clothing away from moving/rotat-

ing parts.

• Verify that all guards and covers are attached properly

to the equipment before starting the engine. Do not

start the engine if any guards or covers are not prop-

erly installed on the equipment.

• Attach a “Do Not Operate” tag near the key switch

while performing maintenance on the equipment.

WARNING

Control Hazard

An underrated tow hitch could cause loss of control of the

towing vehicle or trailer, resulting in death or serious injury.

Always:

• Make sure that the vehicle’s towing capacity exceeds

that of the trailer load.

• Make sure that the vehicle’s hitch and ball are rated to

accept the trailer load, and are the appropriate size for

the trailer coupler socket.

• Dragging safety chains on the road surface could

cause them to fail in an emergency, resulting in death

or serious injury. Always attach safety chains properly

and securely between the tow vehicle and the trailer,

and do not let them drag on pavement.

WARNING

Flying Object Hazard

• Always wear eye protection when cleaning the equip-

ment with compressed air or high pressure water.

Dust, flying debris, compressed air, pressurized water

or steam may injure your eyes.

WARNING

Coolant Hazard

• Wear eye protection and rubber gloves when handling

engine coolant. If contact with the eyes or skin should

occur, flush eyes and wash immediately with clean

water.

WARNING

Burn Hazard

• Rapid release of hot coolant under pressure could

result in death or serious injury. Use extreme caution

when opening the radiator cap, and always wear eye

protection and heat resistant gloves.

• Contact with hot surfaces of the heater unit could

result in death or serious injury. Always keep clear of

heater unit chimney, air outlet components and other

hot areas of the heater unit.

WARNING

California Proposition 65

• Certain components in this product and related

accessories contain chemicals known to the State

of California to cause cancer, birth defects, or other

reproductive harm. Wash hands after handling.

WARNING

California Proposition 65

• Battery posts, terminals and related accessories con-

tain lead and lead compounds, chemicals known to

the State of California to cause cancer and reproduc-

tive harm. Wash hands after handling.

CAUTION

Tool Hazard

• Always use tools appropriate for the task at hand and

use the correct size tool for loosening or tightening

equipment parts.

CAUTION

Slip Hazard

• Immediately clean up any spilled liquid on the shop

floor.

• Clean up accumulated dirt and debris on the shop

floor at the end of each shift.

NOTICE

The statements that follow have NOTICE level issues.

Damage to equipment or property can result if not fol-

lowed.

• Any part which is found defective as a result of inspection

or any part whose measured value does not satisfy the

standard or limit MUST be replaced.

• Always tighten components to the specified torque.

Loose parts can cause equipment damage or cause it to

operate improperly.

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• Follow the guidelines of the Environmental Protection

Agency (EPA), Environment Canada (EC) or other gov-

ernmental agencies for the proper disposal of hazardous

materials such as engine oil, diesel fuel and engine cool-

ant.

• Only use replacement parts specified. Other replacement

parts may effect warranty coverage.

• Clean all accumulated dirt and debris away from the

body of the equipment and its components before you

inspect the equipment or perform preventative mainte-

nance procedures or repairs. Operating equipment with

accumulated dirt and debris will cause premature wear of

equipment components.

• Never dispose of hazardous materials by dumping them

into a sewer, on the ground, or into groundwater or water-

ways.

• Retrieve any tools or parts that may have dropped inside

of the equipment to avoid improper equipment operation.

• If any alert indicator illuminates during equipment opera-

tion, stop the engine immediately. Determine the cause

and repair the problem before continuing to operate the

equipment.

Notification of Safety Defects

If you believe that your vehicle has a defect that could

cause a crash or could cause injury or death, you should

immediately inform the National Highway Traffic Safety

Administration (NHTSA) in addition to notifying Allmand.

If NHTSA receives similar complaints, it may open an inves-

tigation, and if it finds that a safety defect exists in a group

of vehicles, it may order a recall and remedy campaign.

However, NHTSA cannot become involved in individual prob-

lems between you, your dealer, or Allmand.

To contact NHTSA, you may either call the Vehicle Safety

Hotline toll-free at 1-888-327-4236 (TTY: 1-800-424-9153),

go to http://www.safercar.gov; or write to:

Administrator

NHTSA

1200 New Jersey Avenue S.E.

Washington, DC 20590

You can also obtain other information about motor vehicle

safety from http://www.safercar.gov.

Safety Decals

Before operating your unit, read and understand the following

safety decals. The cautions, warnings, and instructions are

for your safety. To avoid personal injury or damage to the unit,

understand and follow all the decals.

Compare Figures 1 through 3 with the tables following.

WARNING

If any safety or instructional decals become worn or dam-

aged, and cannot be read, order replacement decals from

your dealer.

Figure 1

A

B

C D

DE

E

Left View

Right View

Top View

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Figure 2

F

Heater Units

Heater Breaker Box

Figure 3

G

H

I J K L M

Inside Rear Door

N O

Inside Left Door

P

Fuel Tank

Domestic Models

A Tire Information

Part No. 108360

B WARNING - Excessive

Towing Speed. To pre-

vent serious injury, death

or equipment damage,

do not exceed 55 mph

(88 km/h).

Part No. 090160

C Diesel Fuel - Use ultra

low sulfur fuel only.

Part No. 107045

D Lift Point - Rated at 3000

lbs (1361 kg)

Part No. 106762

E WARNING - Hot surface

could burn exposed skin

which could result in

death or serious injury.

Hot components must

be cool before handling,

or handle hot compo-

nents with heat resistant

gloves.

Part No. 090108

F DANGER - Contacting

High Voltage

Components. Contact

with high voltage

components within

this compartment will

result in death or seri-

ous injury. Do not enter

electrical compartments

when engine is run-

ning. Always close cover

before operating the

machine.

Part No. 090162

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G WARNING -

1. The requirements of

local authorities having

jurisdiction shall be fol-

lowed.

2. Machine to be ground-

ed in accordance with

requirements as out-

lined by local inspection

authorities.

3. Do not fill fuel tank

while engine is running.

4. Do not tamper with

the unit. Only competent

service personnel should

make adjustments.

Part No. 101062

H WARNING - Read

Operator’s Manual.

Read and understand

the Operator’s Manual

before operating this

machine.

Part No. 090158

I Engine Operating

Instructions

Part No. 090304

J WARNING / Heater

Instructions

Part No. 106816

K DANGER - Ground Rod.

Operating the machine

without first installing the

ground rod will result in

death or serious injury.

Drive the ground rod

into the earth and attach

ground wire to ground-

ing lug.

Part No. 106934

DANGER

ELECTRICAL SHOCK HAZARD

Failure to use ground rod

could cause severe injury or death.

Drive ground rod into earth and

attach ground wire to grounding lug.

106934

L WARNING - Do not

operate this unit around

combustible materials.

Fire may result.

Part No. 090143

M WARNING - Do not

operate inside a building

or partly ventilated area.

This unit will produce

carbon dioxide and car-

bon monoxide, which

can lead to asphyxiation.

Part No. 090142

N No Step

Part No. 090147

O Notice

Kinks in ducting could

cause excessive pres-

sure and heat, resulting

in unit damage.

Part No. 106824

P WARNING - Explosive

Gases. Explosive gases

could result in death or

serious injury. Keep open

flame and lighted materi-

als away from battery.

Part No. 090159

International Models

NOTE: Decal locations may differ from figures shown.

A --- ---

B WARNING - Excessive

Towing Speed. To pre-

vent serious injury, death

or equipment damage,

do not exceed 55 mph

(90 km/h).

Part No. 107520

107520

≤ 90 km/h (55 mph)

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C Diesel Fuel - Use ultra

low sulfur fuel only.

Part No. 107045

D Lift Point - Rated at 3000

lbs (1361 kg)

Part No. 106762

E WARNING - Hot surface

could burn exposed skin

which could result in

death or serious injury.

Hot components must

be cool before handling,

or handle hot compo-

nents with heat resistant

gloves.

Part No. 107529

107529

F DANGER - Contacting

High Voltage

Components. Contact

with high voltage

components within

this compartment will

result in death or seri-

ous injury. Do not enter

electrical compartments

when engine is run-

ning. Always close cover

before operating the

machine.

Part No. 104880

G --- ---

H WARNING - Read

Operator’s Manual.

Read and understand

the Operator’s Manual

before operating this

machine.

Part No. 105508

I,J Operating Instructions

Part No. 107521

1 2

1 2 3

4

0° ± 1.4°

4 6

8 ft (2.5 m)

5

A

B

1 2 3 4 5 6

A

B

A

B

A

C

A

B

C

< 130°F (55°C)

107521

K DANGER - Ground Rod.

Operating the machine

without first installing the

ground rod will result in

death or serious injury.

Drive the ground rod

into the earth and attach

ground wire to ground-

ing lug.

Part No. 107255

L WARNING - Do not

operate this unit around

combustible materials.

Fire may result.

Part No. 107526

M WARNING - Do not

operate inside a building

or partly ventilated area.

This unit will produce

carbon dioxide and car-

bon monoxide, which

can lead to asphyxiation.

Part No. 107524

N No Step

Part No. 107522

O Notice

Kinks in ducting could

cause excessive pres-

sure and heat, resulting

in unit damage.

Part No. 107528

P WARNING - Explosive

Gases. Explosive gases

could result in death or

serious injury. Keep open

flame and lighted materi-

als away from battery.

Part No. 104877

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Features and Controls

Overview

Allmand mobile indirect fired heater trailers are intended to

provide a self-contained heating solution for remote locations

where external power is not available. An indirect fired heater

separates the combustion chamber from the heated air,

allowing clean breathable heated air to flow to the ducting.

The heater trailer contains two heater units each capable of

producing a maximum of 515,000 BTU/hr.

The heater trailer features a control module that keeps the

burner at optimum efficiency. The control module displays

the proper damper setting for the elevation, barometric pres-

sure and temperature at its location. The operator need only

set the damper at the prescribed setting and start the heater

unit. Tuning off the burner, changing the nozzle and checking

with a Bacharach smoke tester is not necessary.

The heater trailer is powered by either a Caterpillar or Isuzu

1.5 liter diesel engine, driving a 9kW generator. The genera-

tor provides a nominal 115 volt AC power to the heaters. The

heaters may be disconnected from the on-board generator

and plugged into a 60 Hertz, 115 volt 30 amp receptacle.

Front View

Compare Figure 4 with the table following.

Figure 4

A

B

C

E

D

F

G

H

I

J

K

L

Ref Description

A Fuel Cap

B Air Intake Vent Cover

C Serial Plate

D Fluid Containment Drain (if equipped; under chassis)

E Heating Unit Outlet Access Door

F Duct Storage Box

G Tongue Jack

H Safety Chains

I Ball Hitch

J Lunette Ring

K Duct Storage Box Cover

L Door Holder

Operation Icons

The following table contains operation icons that may be

found on the unit, along with the meaning of each icon.

Icon Meaning Icon Meaning

Read Operator’s

Manual

Earth Ground

On (Power) Off (Power)

Tie Down Lift Point

Diesel Fuel Fuel Tank

Heater 1 Heater 2

Hourmeter Trailer Interior

Light

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Rear View

Compare Figure 5 with the table following.

Figure 5

A

B

C

D

E

F

G

H

I

J

N

K

M

L

Ref Description

A Engine Cover Door

B Door Holder (each side)

C Lift Ring

D Heater 2 Chimney

E Heater 1 Chimney

F Tongue Tie Down Loop (Hidden from View)

G Heating Unit Control Access Door

H Fluid Containment Drains (if equipped; under chassis)

I Radiator Cap Access Panel

J Engine Radiator Vent Cover

K Taillight

L Oil Drain

M License Plate Bracket

N Rear Tie Down

Engine Controls - Caterpillar / Isuzu

The engine controls are located under the engine cover door

on the lower left of the opening.

Compare Figures 6 and 7 with the table following.

Figure 6

A

B

C

D

Figure 7

B

C

DE

A

A Ignition Switch Caterpillar - Turn the key switch to the left

(counterclockwise) to preheat the glow plug.

After 10 seconds, turn the key to the right

(clockwise). First position is Engine Run,

second is Engine Start.

Isuzu - Turn the key switch to the left

(counterclockwise) to preheat the glow plug.

The glow plug indicator will illuminate. After

the indicator shuts o (approximately 15

seconds), turn the key to the right

(clockwise). First position is Engine Run,

second is Engine Start.

B Hourmeter Indicates the total number of hours the

engine has been running.

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C Fuel Gauge For machines equipped with three fuel

tanks, this gauge indicates the fuel level in

each tank.

D Interior Work

Light

Turns the interior work light on or o.

E Glow Plug

(Isuzu Only)

Isuzu Engine - Light illuminates when glow

plugs are turned on, and shuts o when hot

enough to start engine.

Heater Controls

The heater controls are located inside the heater control

access door on the right side of the machine. Each heater

has its own controls.

Compare Figure 8 with the table following.

AB

Figure 8

A Heater LCD

Display

Displays information on the heater. See

LCD Display.

B Heater Start

Button

Starts the heater.

LCD Display

The LCD display panel on the heater unit displays various

information regarding the heater unit and its performance.

Each heater unit has its own display.

Compare Figure 9 with the table following.

A

B

C

D

E

F

G

H

Figure 9

A Barometer Barometric pressure in millibars

B Ambient

Temperature

Actual (unheated) air temperature in

degrees Fahrenheit

C Damper Setting Number damper should be set to for

maximum eciency. See Damper

Control.

D Heater Operating

Status

- “START”: Heater unit is o; press Heater

Start Button to start heater unit

- “STOP”: Heater unit is on; press Heater

Start Button to turn heater unit o

E Heater Eciency Eciency of heater unit in percentage

F Target

Temperature

Target temperature of heater outlet in

degrees Fahrenheit

G Outlet

Temperature

Actual temperature of heater outlet in

degrees Fahrenheit

H Hourmeter Total hours on heater unit

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Damper Control

The burner on each heater control has a damper which must

be adjusted to the damper setting displayed on the LCD dis-

play.

Compare Figure 10 with the table following.

Figure 10

B

A

C

A Damper Setting

Gauge

Indicator numbers assist in setting the

damper to the appropriate opening.

B Damper Pointer Indicates damper setting.

C Damper Lock

Wing Nut

(partially hidden

from view)

Loosen to allow setting of damper. Tighten

to lock damper setting.

Transporting

WARNING

Operating or towing a machine with worn, damaged or

missing parts can result in death or serious injury. Always

replace worn, damaged or missing parts promptly. Do not

operate or tow this machine until all worn, damaged or

missing parts have been replaced, and proper operation of

the machine has been verified.

Pre-Transport Check List

1. Check that the operator’s manuals are with the heater

trailer, in the manual storage container.

2. Check that all safety decals are legible and in place on

the heater trailer. See “Safety Decals” in the Safety sec-

tion of this manual.

3. Check the heater trailer for proper operation:

a. Use an appropriate means to safely support the trailer

tongue. Check that the tongue jack operates properly,

and that the jack lock pin can be locked in the trans-

port position as well as the trailer support position.

See “Operating The Tongue Jack”.

b. Check that the trailer coupler operates properly, and

that the combination trailer coupler / lunette eye is

securely fastened to the heater trailer tongue. See

“Using The Trailer Coupler” and “Combination Trailer

Coupler And Lunette Eye”.

c. Check that the safety chains are properly secured to

the heater trailer tongue, and check the safety chains

and hooks for damage. Replace damaged safety

chains and hooks.

d. Check the trailer lighting connector for damage, and

the trailer lighting wires for damage. Replace or repair

damaged lighting connector or wiring.

e. Check the break-away trailer brake system, and make

sure the break-away brake system battery is fully

charged. See “Break-Away Brake System”.

f. Check the condition and inflation pressure of the tires.

See “Checking the Tire Pressure” in the Maintenance

section.

WARNING

Towing a trailer with worn, damaged or underinflated tires

could result in death or serious injury. Always replace worn

or damaged tires promptly. Always keep tires inflated to

proper cold tire inflation pressure.

4. Check that the ground rod is with the machine. Check

ground rod cable and the grounding lug on the chassis to

make sure they are clean and undamaged. Check that

there is continuity between:

a. The ground lug and the generator ground. (On some

models, the ground lug is connected to the heater

breaker box.)

b. The ground rod and the eyelet connector on the

ground rod cable.

5. Check the engine oil level and add as necessary. See

“Engine Oil” in the Maintenance section.

6. Check the engine cooling system and add as necessary.

Make sure that the coolant overflow bottle is at least 1/3

full of coolant. See “Engine Coolant” in the Maintenance

section.

7. Check the air filter for damage and replace as necessary.

Check the engine air intake system and make sure all

connections are air tight.

8. Check the battery for adequate charge. The heater

trailer is equipped from the factory with a 12 volt bat-

tery. Use a 12 volt battery charger to bring the battery

back to full charge. See “Maintaining the Battery” in the

Maintenance section.

9. If the trailer was stored with the battery disconnected,

reconnect the battery, negative (-) cable last.

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10. Check that there is sufficient fuel in the fuel tank(s), and

add if needed. See “Fueling” in the Operation section.

11. Check that the damper system on the heater burner units

operates properly. See “Operating The Heating Unit” in

the Operation section for detailed information on setting

the damper.

12. Check to be sure that the fuel shut-off valve for each

heater unit is in the “open” position.

13. Check that the engine starts and runs properly. See

“Starting The Engine” in the Operation section as well as

the engine operator’s manual for detailed information on

operating the engine.

14. Check that each heater unit starts and runs properly.

See “Operating The Heating Unit” in the Operation sec-

tion for detailed information on operating the heater unit.

15. If the heater trailer is equipped with a duct box, check

that there is sufficient ducting of the correct diameter for

the heater unit outlets in the duct box.

16. Make sure all covers and doors are closed and securely

latched.

Preparing The Unit For Towing

WARNING

Towing a trailer with an underrated tow vehicle, or an

underrated or undersized hitch could result in death or

serious injury. Always use a tow vehicle that has a rated

towing capacity that exceeds the Gross Vehicle Weight

Rating (GVWR) of the trailer, and is equipped with the

appropriate size tow hitch rated for the GVWR of the trailer.

1. Check the tow vehicle’s owner / operator manual for the

maximum rated towing capacity. Make sure the tow vehi-

cle and its trailer hitch are rated to tow the heater trailer.

See “Heater Trailer Weight” for detailed information on

trailer weight.

2. Check the tow vehicle’s lighting connector and make

sure it will mate with the trailer lighting connector on the

heater trailer. Check that the auxiliary power wire on the

tow vehicle is connected and powered to operate the

break-away brake system.

3. The heater trailer is equipped with both a SAE J684

coupler (for 2 inch / 50 mm diameter ball), and a

SAE J847 lunette eye (3 inches / 75 mm diameter).

Determine which is to be used for towing the trailer.

See “Combination Trailer Coupler And Lunette Eye” for

detailed information on changing between the trailer cou-

pler and the lunette eye.

4. Check that the safety chains are properly secured to the

heater trailer tongue, and check the safety chains and

hooks for damage. Replace damaged safety chains and

hooks.

5. Check the trailer lighting connector for damage, and the

trailer lighting wires for damage. Replace or repair dam-

aged lighting connector or wiring.

6. Check the break-away trailer brake system, and make

sure the break-away brake system battery is fully

charged. See “Break-Away Brake System” for detailed

information on the break-away brake system.

7. Check the condition and inflation pressure of the tires.

See “Checking the Tire Pressure” in the Maintenance

section for detailed information on tires and tire inflation

pressures.

WARNING

Towing a trailer with worn, damaged or underinflated tires

could result in death or serious injury. Always replace worn

or damaged tires promptly. Always keep tires inflated to

proper cold tire inflation pressure.

8. Use an appropriate means to support the trailer tongue.

Check that the tongue jack operates properly, and that

the jack lock pin can be locked in the transport position

as well as the trailer support position. See “Operating

The Tongue Jack” for detailed information on operating

the tongue jack.

9. Connect the trailer coupler or lunette eye to the tow vehi-

cle trailer hitch or pintle hook. Connect the safety chains

and trailer lighting connector to the tow vehicle. See

“Connecting The Trailer To The Tow Vehicle” for detailed

information.

10. Make sure all covers and doors are closed and securely

latched.

Combination Trailer Coupler And

Lunette Eye

The heater trailer is equipped with a standard adjustable

height, reversible combination trailer coupler and lunette

eye. The SAE J684 trailer coupler (for 2 inch / 50 mm diam-

eter ball) is rated at 7,000 pounds (3,175 kg) GVWR. The

lunette eye is 3 inches (75 mm) in diameter conforming to

the requirements of SAE J847 for 6,000 pounds (2,722 kg)

GVWR.

To change the position of the trailer coupler and the lunette

eye:

1. Check the tongue, trailer coupler and lunette eye for

missing and damaged parts. Replace any part that is

missing or damaged.

2. Remove the two hex head screws (A, Figure 10) and lock

nuts (B) securing the tubular portion of the lunette eye to

the tongue. Discard the lock nuts.

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3. Select either the trailer coupler or lunette eye (whichever

is required to couple the heater trailer to your tow vehi-

cle), and position it at the front of the tongue. Determine

the height which works best for your tow vehicle.

4. Insert the two hex head screws removed in Step 1

through the appropriate holes in the tongue and through

the holes in the tubular portion of the lunette eye (C, D,

Figure 10).

WARNING

Failure to secure the screws and nuts holding the combi-

nation trailer coupler and lunette eye to the heater trailer

tongue could cause the heater trailer to separate from the

tow vehicle resulting in death or serious injury. Always

check and tightly secure the screws holding the combina-

tion trailer coupler and lunette eye to the tongue.

5. Using new lock nuts, install nuts on the two hex head

screws and tighten.

Figure 10

A

B

D

C

Connecting The Trailer To The Tow

Vehicle

1. Make sure that wheel chocks are placed on both sides of

each of the heater trailer’s wheels.

2. Use the tongue jack to raise the trailer coupler or lunette

eye above the tow vehicle’s hitch ball or pintle hook. See

“Operating The Tongue Jack” for detailed information on

operating the tongue jack.

3. Position the tow vehicle’s hitch ball or pintle hook under

the trailer coupler or lunette eye.

4. Lower the trailer coupler or lunette eye onto the hitch ball

or pintle hook with the tongue jack.

5. Lock the trailer coupler or pintle hook. See “Using The

Trailer Coupler” or “Using A Pintle Hook” for detailed cou-

pling information.

6. Attach the safety chains (A, Figure 11) to the tow vehi-

cle’s hitch frame. Cross the chains under the tongue as

shown in Figure 11. Leave enough slack in the chains to

allow for turns, but not so much that the chains will con-

tact the road surface.

7. Connect the trailer lighting connector to the tow vehicle’s

connector (B, Figure 11). Make sure the trailer lighting

harness has adequate length to prevent disconnection

when turning, but not so much length that the harness

will contact the road surface. Check the stop, turn sig-

nal, tail, side marker and license plate lamps for proper

operation.

8. Connect the break-away brake switch cable to the tow

vehicle. See “Break-Away Brake System” for detailed

information on the break-away brake system.

9. Retract the tongue jack all the way, and place the jack in

transport position. See “Operating The Tongue Jack” for

detailed information on operating the tongue jack.

10. Remove the wheel chocks from both sides of each of the

heater trailer’s wheels.

Figure 11

A

B

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Operating The Tongue Jack

The heater trailer is equipped with a tongue jack to support

the trailer tongue and to level the trailer front to rear.

To raise and lower the tongue jack:

1. To raise the tongue, turn the handle (A, Figure 12) clock-

wise to extend the jack.

2. To lower the tongue, turn the handle counter-clockwise to

retract the jack.

To position the tongue jack in the transport or trailer

support position:

1. Make sure the tongue is safely supported by appropriate

means.

2. Pull the tongue jack quick release pin (B, Figure 12) from

the locking hole so that the jack (C) can rotate.

WARNING

Removing the tongue jack quick-release pin from the lock-

ing hole without supporting the trailer tongue could cause

the tongue to fall to the ground resulting in death or serious

injury. Always make sure the trailer tongue is safely sup-

ported by appropriate means prior to removing the jack

quick-release pin.

3. Rotate the jack to the desired position. The jack can be

locked in 2 positions.

• Trailer support position – vertical with support pad

down (D, Figure 12).

• Transport position – horizontal with support pad rear-

ward (E).

4. Insert the tongue jack quick-release pin in the locking

hole.

WARNING

Failure to insert the tongue jack quick-release pin in the

locking hole could leave the tongue unsupported causing

it to fall to the ground resulting in death or serious injury.

Always make sure the tongue jack quick-release pin is

inserted in a locking hole before raising or lowering the

trailer tongue.

Figure 12

A

B

C

E

D

Using The Trailer Coupler

The heater trailer is equipped with a heavy duty SAE trailer

coupler rated for Gross Vehicle Weight Rating (GVWR) of

7,000 pounds (3,175 kg). This coupler complies with SAE

J684 and VESC V-5 standards.

To couple the trailer to the tow vehicle:

1. Make sure the coupler is open: Remove the pin (A,

Figure 13) from the latch (B) and lift the latch. Make sure

the coupler cap (D) is open and holds the collar (C) back.

2. Lower the trailer onto the hitch ball (E, Figure 13).

3. Visually check to make sure the hitch ball is fully seated

in the coupler.

4. Carefully close the coupler cap, then lower the latch. Be

sure the collar, which is spring loaded, springs toward the

ball socket and captures the coupler cap.

5. Reinsert the pin in the latch. Do not tow without the pin

in the latch.

6. Check that the coupler is securely attached to the ball

hitch.

To uncouple the trailer from the tow vehicle:

1. Remove the pin in the latch and lift the latch. Make sure

the coupler cap is open and holds the collar back.

2. Raise the trailer off of the hitch ball with the tongue jack.

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Figure 13

B

A

C

D

E

Using A Pintle Hook

The 3-inch (75mm) diameter lunette eye meets the require-

ments of SAE J847 for Gross Vehicle Weight Rating (GVWR)

of 6,000 pounds (2,722 kg). Couple the lunette eye to a pin-

tle hook meeting the requirements of SAE J847 for a GVWR

of not less than 6,000 pounds (2,722 kg).

When using the lunette eye with a pintle hook, follow the pin-

tle hook manufacturer’s instructions for coupling and locking

the lunette eye to the pintle hook, and uncoupling the lunette

eye from the pintle hook.

Break-Away Brake System

The heater trailer is equipped with electric brakes and a

break-away brake system. The break-away brake system

is designed to bring the heater trailer to a stop by activating

the electric brakes should the heater trailer become discon-

nected from the tow vehicle while moving.

The auxiliary power wire on the tow vehicle must be con-

nected and powered for this system to work.

The break-away brake system is not intended to be used as

a parking brake.

The break-away brake system consists of a break-away box

with 12 volt battery, a break-away brake switch, and a break-

away brake switch cable.

The break-away brake box is equipped with a battery test

button to check the battery condition. The battery should be

charged and tested before towing the trailer.

To check the break-away brake system:

WARNING

Towing the heater trailer when the break-away brake sys-

tem battery charge is low, or when the electric brakes are

not functioning properly could result in death or serious

injury should the heater trailer become disconnected from

the tow vehicle while moving. Always perform the break-

away brake system tests prior to towing the heater trailer.

Always repair the break-away brake system if the system is

not operating properly.

1. Before connecting the tow vehicle trailer lighting cable

to the heater trailer, push the “Test” button on the break-

away brake box. The green light indicates a charged bat-

tery, while a red light indicates that the battery charge is

low.

2. If the battery charge is low, recharge the battery before

towing the trailer. To recharge the battery, connect the

tow vehicle’s trailer lighting cable to the heater trailer. An

amber light indicates that the battery is charging.

3. With a fully charged battery, test the break-away brake

system. Pull firmly on the break-away brake switch cable

until the pin disconnects from the break-away brake

switch. The battery should activate the electric brakes.

To connect the break-away brake switch cable to the

tow vehicle:

1. Pull the pin (A, Figure 14) out of the break-away brake

switch (B).

NOTE: Image is representative, and may differ according

to model.

2. Locate the safety chain pocket on the tow vehicle that is

on the same side as the break-away brake switch. Do

not cross the break-away brake switch cable to the oppo-

site side safety chain pocket, as this could cause the

break-away brake switch to fail. Do not cross over the

hitch ball, as the cable may become disconnected as the

tow vehicle moves over rough roads.

3. Route the pin through the safety chain pocket (C, Figure

14), then through the break-away brake cable loop (D).

4. Re-insert the pin in the break-away brake switch.

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Figure 14

A

B

C

D

Heater Trailer Weight

WARNING

Towing the heater trailer when it is loaded beyond the

Gross Vehicle Weight Rating (GVWR) as stated on the

serial plate could result in death or serious injury. Always

maintain a GVWR less than the GVWR stated on the serial

plate.

The heater trailer is an SAE Class 4 trailer, with a Gross

Vehicle Weight Rating (GVWR) as stated on the serial plate

and in the “Specifications” section of this manual. Do not

exceed the GVWR by attempting to carry additional tools or

equipment.

Towing The Heater Trailer

WARNING

Excessive speed when towing the trailer could result in

death or serious injury. Always maintain a safe towing

speed for road conditions. Never exceed 55 MPH (90

km/h) when towing the heater trailer.

The rated maximum highway towing speed for the heater

trailer is 55 MPH (90 km/h). Be sure to check your state or

province laws regarding maximum legal towing speeds for

trailers.

When towing the heater trailer off-highway or on rougher

terrain, the maximum towing speed is 20 MPH (32 km/h).

Slower speeds may be required for very rough terrain.

The heater trailer is designed to be towed with the engine

and heater units shut down.

Disconnecting The Heater Trailer From

The Tow Vehicle

1. Select a firm, level and stable surface at the work site.

Follow all rules or instructions for your work site for locat-

ing the heater trailer.

2. Position the heater trailer with the tow vehicle so that the

left side of the trailer (heater outlet side) is toward the

area to be heated. Chock both sides of each wheel.

WARNING

Attempting to move or position the heater trailer by manu-

ally pushing or pulling it could present a crush hazard

resulting in death or serious injury. Always position the

heater trailer with the tow vehicle, chock the wheels and

lower the tongue jack before uncoupling the trailer from the

tow vehicle.

3. Disconnect the trailer lighting connector from the tow

vehicle’s connector.

4. Position the tongue jack in the trailer support position,

and lower the jack to support the tongue. Support the

trailer to allow the trailer coupler or pintle hook to be

disconnected from the tow vehicle. See “Operating The

Tongue Jack” for detailed information on operating the

tongue jack.

5. Disconnect the trailer coupler or pintle hook. See “Using

The Trailer Coupler” or “Using A Pintle Hook” for detailed

uncoupling information.

6. Use the tongue jack to raise the trailer coupler or lunette

eye above the tow vehicle’s hitch ball or pintle hook.

7. Disconnect the safety chains from the tow vehicle’s hitch

frame.

8. Disconnect the break-away brake cable from the tow

vehicle.

9. Move the tow vehicle clear of the heater trailer.

Transporting On A Trailer

The heater trailer is equipped with four tie down points.

There are two tie down loops at the front of the trailer located

on the trailer tongue. The spacers between the trailer chassis

and the rear “bumper” are used as tie down points at the rear.

Always secure the heater trailer with appropriate chains or

straps. Do not apply more than 600 pounds (272 kg) force

on the chains or straps.

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The truck operator is responsible for securing the load prop-

erly to his trailer.

Lifting The Heater Trailer

WARNING

Attempting to lift the heater trailer with a lifting device that

is underrated or damaged could result in death or serious

injury. Always make sure the lifting device is rated to lift

the weight of the heater trailer. Make sure that the lifting

device is not damaged and is in operable condition before

beginning the lift.

WARNING

Standing or walking under elevated equipment could

result in death or serious injury. When elevating or lifting

the heater trailer, always keep clear of the area around

and under the heater trailer, and do not allow others in the

area.

The heater trailer is equipped with two lifting eyes at the

top of the trailer. See Heater Trailer Weight for the weight of

the heater trailer. Each lifting eye is rated for 3,000 pounds

(1,361 kg). Use both lifting eyes when attempting to lift the

heater trailer. The lifting eyes are intended carry the weight

of the Maxi-Heat heater trailer only, and no additional weight.

The heater trailer is not intended to be suspended for long

periods of time.

The heater trailer is not equipped with forklift pockets. Do not

attempt to lift the heater trailer with a forklift.

Operation

Work Site Considerations

Prior to setting up and operating the heater trailer, the opera-

tor must determine where to place it on the work site. When

placing the heater trailer, consideration must be given to

ground conditions, proximity to combustible or flammable

material and ventilation.

It is the operator’s responsibility to ensure that the heater

trailer is properly and safely positioned on stable surface at

the work site. Be sure to follow rules or instructions for your

work site for locating the heater trailer.

Ground Conditions

The heater trailer must be placed on a firm stable surface

that will support the total weight of the trailer, and support the

force exerted on the ground at the tongue jack. The surface

should be level, but must not exceed a grade of 2.5% (1.4°

incline) in any direction. Grades greater than 2.5% may

cause the heater trailer to roll away. Always chock both sides

of each wheel prior to disconnecting the heater trailer from

the tow vehicle.

Proximity To Combustible Or Flammable

Material

The heater must be kept away from combustible or flam-

mable material. Maintain a distance of at least 8 feet (2.5

m) from the air outlet, and 5 feet (1.5 m) from the top and air

inlet side from any combustible or flammable material.

Carbon Monoxide Asphyxiation

WARNING

Operating the engine or the heater units in a non-ventilated

enclosed area could result in death or serious injury.

Always operate the engine and the heater units in a well

ventilated area.

The engine and the chimneys of the heater units exhaust car-

bon monoxide gas which can cause asphyxiation when the

engine or the heater units are run in an enclosed area. Make

sure that the heater trailer is in a well ventilated area before

starting the engine or operating the heater units.

Carbon monoxide gas is not present at the heater outlet. The

combustion chamber of the heater unit is separate from the

heated air passing over it to the heater outlet. Occasionally,

the odor of diesel fuel may be present with the heated air

at the outlet. This does not indicate the presence of carbon

monoxide gas.

Using The Ground Rod

The heater trailer is equipped with a earth grounding system.

This system consists of a ground rod, a grounding cable and

a ground lug on the outside of the heater trailer. The ground

rod is a safety device that reduces the chance of personal

injury from stray electrical currents. Therefore, Allmand rec-

ommends using the ground rod whenever the heater trailer is

in use. It is the user’s responsibility to determine the require-

ments and / or applicability of national, state or province and

local electrical code, which governs the use of the ground

rod.

To install the ground rod:

1. Open the rear engine cover door and secure with the

door cover holders. The ground rod with grounding cable

is stored on the left side of the trailer to the left of the fuel

tank.

2. Unwind the grounding cable from the ground rod. Leave

the grounding cable securely attached to the ground rod.

3. Find the ground lug at the left rear of the trailer chassis.

See Figure 15. Locate a point on the ground not more

than 5 feet (1.5 m) from the ground lug. Drive the ground

rod into the earth at this point.

4. Remove the wing nut from the ground lug, and attach the

grounding cable to the ground lug. Secure with the wing

nut.

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To remove the ground rod:

1. Remove the grounding cable from the ground lug by

removing the wing nut. Re-install the wing nut on the

ground lug.

2. Remove the ground rod from the earth. Be careful not to

damage the grounding cable when removing the ground

rod.

3. Wind the grounding cable around the ground rod. Place

the ground rod in its storage tube inside the engine com-

partment.

Figure 15

Fueling The Heater Trailer

WARNING

Attempting to fuel the heater trailer with the engine or heat-

er units running could cause fire resulting in death or seri-

ous injury. Always make sure the engine and heater units

are shut down before adding fuel to the fuel tanks.

The heater trailer is equipped with a single fuel tank, which

supplies the engine and the two heater units. The single wall

tank has a capacity of 190 gallons (719 L), and the double

wall tank has a capacity of 175 gallons (662 L).

The fuel tank cap (A, Figure 16) is located on top of the

heater trailer.

Fill the fuel tank with No. 1 Ultra Low Sulfur Diesel (ULSD).

NOTICE

Using engine fuels other than recommended could cause

damage to your engine or its emission control system result-

ing in voiding the engine manufacturer’s warranty. Always

read and follow the engine manufacturer’s fuel recommenda-

tions.

Figure 16

A

Locking Fuel Cap

When equipped with a single wall single fuel tank, the fuel

cap is fitted with a tang with a hole for a pad lock (not includ-

ed).

When equipped with a double wall single fuel tank, the fuel

cap is vented and fitted with a key slot.

When equipped with three fuel tanks, the standard fuel caps

are not lockable. Optional locking fuel caps are available.

To lock or unlock a locking fuel cap:

1. Inset the key in the key slot.

2. To unlock the fuel cap, hold the cap to prevent it from

rotating freely, while turning the key counter-clockwise.

Once unlocked, remove the fuel cap.

3. To lock the fuel cap, screw the cap onto the filler neck.

Turn the key clockwise to lock the cap.

Preparing To Operate The Heater Trailer

1. Place wheel chocks on both sides of each wheel.

2. Level the heater trailer front to back with the tongue jack.

See “Operating The Tongue Jack” in the Transporting

section.

3. Open the rear engine cover door and secure with the

door cover holders. Check the following:

a. Remove the dipstick from the engine and check the

engine oil level. Maintain engine oil level between the

“Full” and “Add” marks on the dipstick. Add as need-

ed. See “Engine Oil” in the Maintenance section.

b. Check the engine coolant recovery bottle. Keep

engine coolant in the recovery bottle at least 1/3 full.

Remove the radiator cap and check the coolant level.

Add as needed. See ‘Engine Coolant’ in Maintenance

section.

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WARNING

Rapid release of hot coolant under pressure could result in

death or serious injury. Use extreme caution when open-

ing the radiator cap, and always wear eye protection and

heat resistant gloves.

c. Open the cover of the electrical box on the left side of

the engine compartment. Make sure that both heater

unit circuit breakers are in the ON position. Close and

latch the electrical box cover.

4. Check the fuel level in the fuel tank(s) and add as need-

ed.

a. Open the rear engine cover door and secure with the

door cover holders.

b. For heater trailers equipped with a single wall single

fuel tank, check the mechanical fuel gauge built into

the back wall of the fuel tank on the lower left.

c. For heater trailers equipped with either a double-wall

single fuel tank or three individual fuel tanks, turn the

ignition key to the RUN position. Check the level in

the fuel tank(s) with the fuel gauge mounted on the

engine control panel. The engine control panel is at

the lower left of the engine compartment opening.

5. Check to make sure the heater unit fuel shut-off valves

are open. Open the right side heating unit control access

door, and locate the fuel shut-off valves at the bottom of

the opening. To open the valve (allow fuel flow), move

the handle in-line with the fuel valve body. To close the

valve (shut off fuel flow) move the handle perpendicular

to the fuel valve body.

6. Open the left side heater unit outlet access door.

Determine what size ducting is required and install the

appropriate flexible ducting on the heater outlets. See

Installing The Flexible Ducting for installation instructions.

NOTE: Heater unit outlet access door must be open for

heater unit to operate.

Installing The Flexible Ducting

The heater trailer can be equipped with different size heater

unit outlets. The options for each heater unit include:

• Double 12 inch (305 mm) diameter outlets.

• Single 16 inch (406 mm) diameter outlet.

• Single 20 inch (408 mm) diameter outlet.

Flexible ducting of the same size is available from Allmand.

All sizes of outlets can accommodate both the adjustable

strap and clamp style and slip-lock style flexible ducting.

To use adjustable strap and clamp style ducting:

1. Install the cuff of the flexible ducting with strap and clamp

(A, Figure 17) over the heater unit outlet ring. Make sure

that the cuff, strap and clamp are beyond the bead on the

outlet ring (B).

2. Tighten the cuff over the outlet ring by pulling on the

loose end of the strap (C).

3. To remove the flexible ducting, loosen the clamp and pull

the cuff of the flexible ducting from the outlet ring.

Connecting rings for the slip-lock style of flexible ducting are

available from Allmand. A connecting band must be used to

slip inside the heater unit outlet ring. The connecting band

has three lock pins which engage in the “J” slots of the outlet

ring.

Figure 17

B

A

C

To use the slip-lock style flexible ducting:

1. Install the flexible ducting (A, Figure 18) over the con-

necting band (B). The flexible ducting should cover only

half of the connecting band (inset), allowing the lock pins

and arrows to be visible on the remaining half. Secure

using a large screw type band clamp (C).

2. To attach the slip-lock flexible duct, align a lock pin and

arrow of the connecting band (B, Figure 19) with a “J” slot

in the outlet ring (D). Slip the connecting band inside

the outlet ring as deep as it will go. Twist the connecting

band counter-clockwise to the end of the “J” slot, then

pull back to lock.

3. To remove the slip-lock flexible duct, push the connecting

band in and twist clockwise to the end of the “J” slot, then

pull the connecting band off the outlet ring.

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