993K Wheel Loader Power Train Caterpillar

Illustration 1	g01423238
249-7012 Axle Oil Cooler Pump and Motor (1) 267-8900 Gear Motor (2) 267-8901 Gear Pump (3) 267-8972 Relief valve

(4) Torque for plug ... 85 ± 4 N·m (65 ± 3 lb ft)

(5) Torque for four nuts ... 115 ± 7 N·m (85 ± 5 lb ft)

(6) Torque for four bolts ... 115 ± 7 N·m (85 ± 5 lb ft)

(7) Torque for four bolts ... 105 ± 20 N·m (75 ± 15 lb ft)

(8) Torque for eight bolts ... 115 ± 7 N·m (85 ± 5 lb ft)

Displacement of the motor ... 39.7 cc/rev (2.43 in³/rev)

Displacement of the pump ... 59.4 cc/rev (3.63 in³/rev)

Maximum rpm for pump and motor ... 2500 rpm

Maximum pressure for motor ... 17200 kPa (2500 psi)

Maximum pressure for pump ... 17200 kPa (2500 psi)

Note: With the flow rate of the pump supply at 117.3 L/min (31 US gpm), block the pump outlet. Set relief valve (3) at 1034 ± 34 kPa (150 ± 5 psi). Use SAE 10W oil at 37.8 °C (100 °F).

Illustration 2	g01423262
267-8901 Gear Pump

(9) Torque for four bolts ... 8 N·m (70 lb in)

(10) The backs of the seals are against each other.

Illustration 3	g01423438
267-8900 Gear Motor

(11) Back up ring

Note: Insert the O-ring into the groove of the back up ring. The flat surface of the back up ring goes against the bushing.

(12) Sealing strip

Note: Rotation of the shaft is clockwise when the axle oil cooler pump and motor is viewed from the motor end of the assembly.

267-8972 Relief Valve

Illustration 4	g01423423
Relief valve (3)

(13) Torque for cap ... 37 ± 3 N·m (27 ± 2 lb ft)

(14) Torque for fitting ... 10 ± 1 N·m (90 ± 9 lb in)