ROTATING GP-PUMP 2590903 - Caterpillar

Do not attempt to tighten track when dimension (3) is 100 mm (3.9 in) or more. Contact your Caterpillar dealer for track service or instructions.
1. Remove the adjusting valve cover plate. 2. Add grease (MPGM) through adjusting valve (4) until dimension (3) is correct.3. Operate the machine back and forth to equalize the pressure. Allow the machine to coast to a stop. Do not use the brakes.4. Remeasure dimension (3). If track is too tight:1. Loosen the relief valve (5) one turn only and allow grease to escape.2. Close the relief valve.3. Add grease (MPGM) through adjusting valve (4) until dimension (3) is correct.4. Install the valve cover plate.5. Repeat procedure on the other track.Track Shoe Bolt Torque
The torque requirement for track shoe bolts is 170 40 N m (120 30 lb ft) plus an extra 1/3 turn (120 degrees). For split master link bolts, torque to 170 40 N m (120 30 lb ft) plus an extra 1/2 turn (180 degrees).Fan Drive Bearing
Open the engine access cover (if equipped) on the left side of the machine. Lubricate one fitting.Air Conditioner (If Equipped)
Test Operation - Adjust Belt
Inhaling refrigerant through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting refrigerant can cause bodily harm or death. Do not smoke when servicing air conditioners or wherever refrigerant may be present.
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 refrigerant in the system as follows: Feel suction line (1) and discharge line (2).If the system contains refrigerant, the discharge line is warmer than the suction line.Poor cooling results if the system does not contain or is very low on refrigerant.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
7. Loosen the compressor mounting bolt and the adjusting bracket bolt.8. Move the compressor in or out to obtain the correct belt tension. Tighten the compressor mounting bolt and the adjusting bracket bolt. Recheck the belt deflection. 9. Repeat Steps 1 through 3 if necessary. Check the cab air filters and clean filter elements, if necessary.10. If poor cooling is still experienced, turn off the air conditioner. Stop the engine. Contact your Caterpillar dealer for air conditioner system service, if necessary.Fan and Alternator Belts
Inspect/Adjust/Replace
1. Open the access cover (if equipped) on the right side of the machine. If one or more belts are worn or damaged, replace the belts in sets only.2. Inspect the condition and the adjustment of fan and alternator belts. The belts should deflect 14 to 20 mm (.51 to .81 in) under 110 N (25 lb) force. Belt Adjustment: 1. Loosen the adjusting locknut. 2. Turn the adjusting nut until the correct