TOPIC 2. BATTERY

TM 10-3930-644-14&P

TOPIC 2. BATTERY

A. DESCRIPTION

When connecting a charger to the battery, be sure to

connect the charger positive lead to the battery positive

The storage battery mounted on a swing-out steel tray

lead, and the charger negative lead to the battery

located beneath the operator's seat, is used to store

negative lead.

current for the electrical system. The steel tray is held

securely in place by a neoprene covered hold-down

C. REMOVAL

clamp. Electrical energy drained from the battery,

through the operation of various units in the system, is

1. Lift operator's seat.

restored by the regulated alternator. Refer to Figures 1-

1 and 1-2, wiring diagrams, for proper battery

2. Gain access to the battery by swinging out the

installation.

side panel.

B. SERVICE

3. Disconnect the positive and negative battery

cables from their respective posts.

Use of water with a high mineral content reduces battery

efficiency due to the mineral build-up on the cells as the

4. Remove the wing nuts from the holddown

water evaporates. Be sure the filler plugs are replaced

clamp.

tightly and that plug vent holes are not clogged.

5. Tilt battery towards rear of truck and lift out of

battery tray. Take care not to spill any of the

electrolyte during handling.

D. INSTALLATION

1. Maintain replacement battery in an upright

position, tilting only as required for fit, during

installation.

2. Be certain battery replacement position is the

same as when removed.

3. Make certain battery posts and cable terminals

are clean and that the terminals are connected

to proper posts securely.

4. Expand cable terminals for ease of installation,

and do not hammer onto posts, as this practice

could loosen posts and ruin battery.

5. Be sure the ground polarity of the battery and

ground polarity of alternator are the same.

6. Ensure that electrolyte in each cell is at proper

level.

Figure 2-1. Location of Battery

7. Replace hold-down clamp.

When connecting a booster battery, be sure to connect

the negative battery terminals together and the positive

8. Swing side panel back to normal operation

battery terminals together.

position.

NOTE

Refer to REPAIR MANUAL

for

detailed battery information.

2-24