109627CE_0512 4-3 REV F
Pull out on the seat release knob and pivot the seat platform
forward. Figure 4-2
Electrical system
IMPORTANT: Any maintenance operation that requires
the removal of safety covers must be performed by a trained
service technician.
The electrical system is a 12-volt DC system with negative
ground.
The recommended battery size is a BCI group 35, 12-volt
battery with a minimum cold cranking ability of 490 amps at -
18°C. A maintenance-free battery is recommended.
Otherwise, follow battery manufacturer’s maintenance,
safety, storing and charging specifications. Refer to
Maintenance Locator Chart found elsewhere in this manual.
WARNING: Battery posts, terminals, and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
WARNING: Charge batteries in an open well venti-
lated area, away from spark and flames. Unplug
charger before connecting or disconnecting from the
battery. Wear protective clothing and use insulated
tools.
WARNING: Avoid skin and clothing contact with
battery acid.
Always wear eye protection when checking the bat-
tery, acid can cause serious injury to skin and eyes.
If contact occurs, flush area with clean water and
call physician immediately. Acid will also damage
clothing.
Do not drink the battery electrolyte.
Do not allow open flame near the battery when
charging.
Hydrogen gas forms inside the battery. This gas is
both toxic and flammable and may cause an explo-
sion if exposed to flame. Always remove the nega-
tive ground first and replace it last.
Do not overfill battery.
Electrolyte may overflow and damage paint, wiring
or structure. When cleaning the battery, use soap
and water. Be careful not to get soap and water into
the battery. Clean the battery terminals with a solu-
tion of four parts water and one part baking soda
when they become corroded.
WARNING: Shorts caused by battery terminals or
metal tools touching metal power unit components
can cause sparks. Sparks can cause a battery gas
explosion which will result in personal injury.
Prevent the battery terminals from touching any
metal power unit parts when removing or installing
the battery.
Do not allow metal tools to short between the bat-
tery terminals and metal power unit parts.
WARNING: Incorrect battery cable routing could
cause damage to the power unit and battery cables.
This can cause sparks which can cause a battery gas
explosion which will result in personal injury.
Always disconnect the negative (black) battery
cable before disconnecting the positive (red) cable.
Always connect the positive (red) battery cable
before connecting the negative (black) cable.
Alternator
The 3700 40-amp alternator is belt-driven from the engine
crankshaft pulley. It is important that belt slippage does not
occur, or the charging system will be affected. Figure 4-3
To adjust the belt, see the instructions given under the Fan
Belt section located elsewhere in this manual.
Other than belt adjustment, the only alternator maintenance
required is to periodically inspect the terminals to ensure they
are clean and tight. The alternator cooling fins should also be
cleaned periodically.
When working on or checking the alternator, adhere to
following precautions or alternator damage may occur:
• Do not, under any circumstances, short the field
terminal of the alternator to ground.
Figure 4-1
Figure 4-2
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