3512B and 3516B Engine Supplement for and 784C,, 785C and and 785C HAA Off-Highway Truck/Tractors Caterpillar


Battery - Remove and Install

Usage:

785C 1HW

Removal Procedure

Start By:

  1. Chock the front wheels and the rear wheels. Refer to Disassembly and Assembly, "Wheel Chocks (Front and Rear) - Remove and Install".

  2. Raise the truck body. Install The truck body retaining cable. Refer to Disassembly and Assembly, "Truck Body Retaining Cable - Remove and Install".

------ WARNING! ------

Batteries give off flammable fumes that can explode resulting in personal injury.

Prevent sparks near the batteries. They could cause vapors to explode. Do not allow the jump start cable ends to contact each other or the machine.

Do not smoke when checking battery electrolyte levels.

Electrolyte is an acid and can cause personal injury if it contacts skin or eyes.

Always wear eye protection when starting a machine with jump start cables.

Improper jump start procedures can cause an explosion resulting in personal injury.

Always connect the battery positive (+) to battery positive (+) and the battery negative (−) to battery negative (−).

Jump start only with an energy source with the same voltage as the stalled machine.

Turn off all lights and accessories on the stalled machine. Otherwise, they will operate when the energy source is connected.


  1. Turn the engine start switch to the OFF position. Remove the key from the engine start switch.

  2. Turn all the instrument panel switches to the OFF position.

  3. Turn the battery disconnect switch to the OFF position. Remove the key from the battery disconnect switch.

  4. Open the door of the battery compartment.


    Illustration 1g00567505

  5. Disconnect cables (1), (2), (3), and (4) from the batteries. Refer to Operation and Maintenance Manual, SEBU7173, "Battery, Battery Cable or Battery Disconnect Switch - Replace" for the correct procedure.


    Illustration 2g00567504

  6. Remove two nuts (5) and the washers. Remove hold-down assembly (6) from battery (7).

  7. Attach a suitable lifting device and a hoist to the lifting strap on battery (7). Remove battery (7) from the battery compartment. The weight of battery (7) is 20 kg (44 lb).

  8. Repeat Steps 6 and 7 for the remaining battery.

Installation Procedure

------ WARNING! ------

Batteries give off flammable fumes that can explode resulting in personal injury.

Prevent sparks near the batteries. They could cause vapors to explode. Do not allow the jump start cable ends to contact each other or the machine.

Do not smoke when checking battery electrolyte levels.

Electrolyte is an acid and can cause personal injury if it contacts skin or eyes.

Always wear eye protection when starting a machine with jump start cables.

Improper jump start procedures can cause an explosion resulting in personal injury.

Always connect the battery positive (+) to battery positive (+) and the battery negative (−) to battery negative (−).

Jump start only with an energy source with the same voltage as the stalled machine.

Turn off all lights and accessories on the stalled machine. Otherwise, they will operate when the energy source is connected.


  1. Attach a suitable lifting device to the lifting strap on battery (7). Secure the lifting device to a suitable hoist. Install battery (7) to the battery compartment. The weight of battery (7) is 20 kg (44 lb).


    Illustration 3g00567504

  2. Install hold-down assembly (6) to battery (7) with two nuts (5) and the washers. Tighten nuts (5) to a torque of 20 ± 4 N·m (14.8 ± 3.0 lb ft).

  3. Repeat Steps 1 and 2 for the remaining battery.


    Illustration 4g00567505

  4. Connect cables (1), (2), (3), and (4) to the batteries. Refer to Operation and Maintenance Manual, SEBU7173, "Battery, Battery Cable or Battery Disconnect Switch - Replace" for the correct procedure.

  5. Close the door of the battery compartment.

  6. Turn the battery disconnect switch to the ON position. Remove the key from the battery disconnect switch.

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