ENGINE AR 1393286 - Caterpillar

Relief Valve (Charge) - Test and Adjust (Left Pump)
Table 26
Status(1) Description Specification Actual Comments
The pressure at charge pressure tap (15) 2500 175 kPa (363 25 psi)
The pressure at case drain tap (14) 175 kPa (25 psi) to 410 kPa (59 psi)
The differential pressure between charge pressure tap (15) and case drain tap (14) 1950 kPa (283 psi) to 2500 kPa (363 psi)
Approximate pressure change from one turn of charge pressure adjustment screw (20) 390 kPa (57 psi)
Charge pressure adjustment screw locknut (19) torque 52 N m (38 lb ft)
(1) N = Normal, M = Monitor, A = ActionRelief Valve (Charge) - Test and Adjust (Right Pump)
Table 27
Status(1) Description Specification Actual Comments
The pressure at charge pressure tap (15) 2500 175 kPa (363 25 psi)
The pressure at case drain tap (14) 175 kPa (25 psi) to 410 kPa (59 psi)
The differential pressure between charge pressure tap (15) and case drain tap (14) 1950 kPa (283 psi) to 2500 kPa (363 psi)
Approximate pressure change from one turn of charge pressure adjustment screw (19) 390 kPa (57 psi)
Charge pressure adjustment screw locknut (20) torque 52 N m (38 lb ft)
(1) N = Normal, M = Monitor, A = ActionS O S Samples
Reference: Refer to Operation and Maintenance Manual, KEBU7067, "Maintenance Interval Schedule" for more detail on performing S.0.S samples.
Table 28
Status(1) Description Obtain Comments
Engine Oil Sample
Engine Coolant Sample (Level II)
Hydraulic System Oil Sample
Pump Drive Oil Sample
Right Final Drive Planetary Oil Sample
Left Final Drive Planetary Oil Sample
Right Conveyor Planetary Drive (Auger) Oil Sample
Left Conveyor Planetary Drive (Auger) Oil Sample
Right Conveyor Planetary Drive (Drag) Oil Sample
Left Conveyor Planetary Drive (Drag) Oil Sample
(1) N = Normal, M = Monitor, A = Action