ALTERNATOR GP-CHARGING 2474021 - Caterpillar

2. Move the transmission to third speed forward.3. Gradually increase the engine speed to high idle. The machine should not move.4. Reduce the engine speed to low idle, move the transmission to NEUTRAL. Engage the parking brake, lower the bucket to the ground and stop the engine.
If the machine moved while testing the brakes, contact your Caterpillar dealer. Have the dealer inspect and, if necessary, repair the service brakes before returning the machine to operation.
Test Parking Brake Holding Ability
Be sure the area around machine is clear of personnel and obstructions.Be sure the steering frame lock link is in the stored position.Test the brakes on a dry, level surface.Fasten the seat belt before testing the brakes.The following tests are to determine if the parking brake is functional. These tests are not intended to measure maximum brake holding effort. Brake holding effort required to hold a machine at a specific engine rpm will vary from machine to machine. This is due to differences in engine setting, power train efficiency, etc., as well as differences in brake holding ability.Engine rpm at beginning of machine movement, with parking brake engaged, should be compared against a prior test. Use this as an indication of system deterioration.1. Start the engine, and raise the bucket slightly.2. With the parking brake engaged, move the transmission to third speed forward. The parking brake indicator light should come on and the back-up alarm should sound.3. Gradually increase the engine speed to high idle. The machine should not move.
If the machine begins to move, reduce the engine speed immediately and apply the service brake pedal.
4. Reduce the engine speed, move the transmission to NEUTRAL. Lower the bucket to the ground and stop the engine.
If the machine moved while testing the brakes, contact your Caterpillar dealer. Have the dealer inspect and, if necessary, repair the parking brakes before returning the machine to operation.
Air Conditioner (If Equipped)
Inhaling freon gas through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting freon can cause bodily harm or death. Do not smoke when servicing air conditioners or wherever freon gas may be present.
Test Operation - Adjust Belt
1. Start the engine. Operate the engine at high idle. 2. Set the air conditioner control for maximum cooling, and fan control on HIGH.3. Allow two minutes for the air conditioning system to stabilize. 4. Check for freon in the system as follows: Feel the suction line (1) and the discharge line (2).If the system contains freon, the discharge line will be warmer than the suction line.If the system does not contain, or is very low on freon, poor cooling will result.5. Stop the engine to inspect the compressor belt. 6. Inspect the condition and the adjustment of the compressor belt. The belt should deflect 14 to 20 mm (.56 to .81 in) under 110 N (25 lb) force.To Adjust
1. Loosen the compressor locknut.2. Move the compressor until the correct belt tension is reached.3. Tighten the compressor locknuts.4. Recheck the belt adjustment.5.