PUMP & MOUNTING GP 4E2437 - Caterpillar

Personal injury or death can result from sudden machine movement.Sudden movement of the machine can cause injury to persons on or near the machine.To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
This section provides probable causes to known problems. Perform a visual inspection of the machine. Refer to Testing and Adjusting, "Visual Inspection".Operational Checks
Operate the machine in each direction and in all speeds. Note the noises that are not normal and find the sources of the noises.
Operate the brakes while the machine is moving. Note any noises that are not normal and ensure that the machine stops within an acceptable distance.Troubleshooting Problem List
Problem List For The Service Brake
The service brakes do not operate.
The service brakes slip.
The service brakes are not applied evenly.
Too much force needed to push the brake pedal.Problem List For The Parking Brake
The parking brake does not hold the machine stationary.
The parking brake does not engage when the parking brake control lever is actuated.
The engine is running and the parking brake is in the ENGAGED position. However, the parking brake alarm does not sound when the transmission is put into the FORWARD direction or into the REVERSE direction.Problem List For The Axles and Differential
There is constant noise in the differential.
Noise occurs in the differential at different intervals.
Noise only occurs during turns.
Lubricant is leaking.
The drive wheels do not turn but the universal joint turns.
The differential lock will not engage.Troubleshooting Probable Causes
Probable Causes To Problems Of The Service Brake
Problem 1The service brakes do not operate.Probable causes
The brake group within the axle housing is damaged.
The lines to the service brakes are obstructed.Problem 2The service brakes slip.Probable causes
Incorrect additives added to the oil in the axle.
The brake discs in the axle housing are worn.Problem 3The service brakes are not applied evenly.Probable causes
The brake discs and associated components in the axle housing are excessively worn.
The service brake valve is sticking because of contaminated oil.
The service brake valve is not delivering the correct amount of pressure.Problem 4Too much force needed to push the brake pedal.Probable causes
The brake pedals and/or brake pedal linkages are damaged.
The service brake valve is sticking because of contaminated oil.Probable Causes To The Problems Of The Parking Brake
Problem 1The parking brake does not hold the machine stationary.Probable causes
The parking brake is out of adjustment.
The brake linings are worn.
There is grease or oil on the brake disc and/or on the brake lining.Problem 2The parking brake does not engage when the parking brake control lever is actuated.Probable causes
The parking brake cable is disconnected.
The parking brake