Generac Power Systems MAC400HC, Owner'S Manual

Owner’s Manual for Flameless Heat Cart

21

Maintenance

Battery Inspection

Always recycle batteries in accordance with local laws
and regulations. Contact your local solid waste collection
site or recycling facility to obtain information on local
recycling processes. For more information on battery
recycling, visit the Battery Council International website
at: 

http://batterycouncil.org

An authorized operator should inspect the engine battery
monthly. At this time, the battery fluid level should be
checked using a load tester, and distilled water added if
needed. Battery cables and connections should also be
inspected for cleanliness and corrosion.

Once every six months, a GMP ASD should inspect the
battery system. At this time, the battery condition and
state of charge should be checked using a load test
battery. The battery should be recharged or replaced as
required.
Battery service must be performed or supervised by
personnel knowledgeable of batteries and the required
precautions. Keep unauthorized personnel away.
Observe the following precautions when working on
batteries:

•

Remove watches, rings, or other metal objects.

•

Use tools with insulated handles.

•

Wear rubber gloves and boots.

•

Do not lay tools or metal parts on top of battery.

•

Disconnect charging source prior to connecting or
disconnecting battery terminals.

NOTE: 

Wash spilled electrolyte down with an acid neu-

tralizing agent. A common practice is to use a solution of
1 lb (454 g) bicarbonate of soda (baking soda) to 1 gal
(3.8 L) of water. Add bicarbonate of soda solution until
the evidence of reaction (foaming) has ceased. Flush the
resulting liquid with water.

NOTE: 

Discharge state electricity before touching bat-

tery by first touching a grounded metal surface.

Battery Installation and Replacement

When required, the battery must be replaced with one of
equivalent size, voltage, and CCA (cold crank amp
capacity). Minimum CCA for this unit is 950. Contact a
GMP ASD for correct battery size. A new battery must be
filled with the proper electrolyte and be fully charge
before installing.
Battery cables are connect to the unit at the factory.
Connect cables to battery posts as follows:

NOTE: 

Turn the battery disconnect to OFF before

changing the battery.

1.

Connect red battery cable from starter contactor to
positive (POS or +) battery post.

2.

Connect black battery cable to negative (NEG or -)
battery post.

3.

See 

Engine and Heater Startup

.

(000137a)

WARNING

Explosion. Batteries emit explosive gases while charging. 
Keep fire and spark away. Wear protective gear when 
working with batteries. Failure to do so could result in 
death or serious injury. 

(000162)

WARNING

Explosion. Do not dispose of batteries in a fire. Batteries 
are explosive. Electrolyte solution can cause burns and

blindness. If electrolyte contacts skin or eyes, flush with water 
and seek immediate medical attention.

(000163a)

WARNING

Risk of burn. Do not open or mutilate batteries. 
Batteries contain electrolyte solution which can 
cause burns and blindness. If electrolyte contacts
skin or eyes, flush with water and seek immediate
medical attention.

(000130)

WARNING

Accidental Start-up. Disconnect the negative battery 
cable, then the positive battery cable when working 
on unit. Failure to do so could result in death 
or serious injury.

(000181)

WARNING

Vision Loss. Eye protection is required to avoid  
spray from spark plug hole when cranking engine.
Failure to do so could result in vision loss.

WARNING

Environmental Hazard. Always recycle batteries at an 
official recycling center in accordance with all local 
laws and regulations. Failure to do so could result in
environmental damage, death or serious injury.

(000228)

(000167a)

CAUTION

Equipment damage. Do not make battery 
connections in reverse. Doing so will result 
in equipment damage.