216, 226, 232 and 242 Skid Steer Loaders Machine Systems Caterpillar

The 191-9700 Piston Pump

Illustration 1	g00882996

The 191-9700 Piston Pump has a clockwise rotation. The 191-9700 Piston Pump is a variable displacement pump.

(1) Torque for the 9S-8002 Plugs ... 15 ± 1 N·m (11 ± 1 lb ft)

(2) High Pressure Reverse Port A ... 35000 ± 2000 kPa (5075 ± 290 psi)

(3) The maximum displacement per revolution for the front section of the pump ... 38.40 ± 0.60 cc (2.343 ± 0.037 in ³ )

(4) Torque for the 204-1455 Locknut ... 22 ± 1 N·m (16 ± 1 lb ft)

(5) High Pressure Forward Port B ... 35000 ± 2000 kPa (5075 ± 290 psi)

(6) The maximum displacement per revolution for the rear section of the pump ... 38.40 ± 0.60 cc (2.343 ± 0.037 in ³ )

(7) This is the mechanical centering for the rear section of the pump.

(8) Torque for the 204-1457 Speed Sensing Valve ... 50 ± 3 N·m (37 ± 2 lb ft)

(9) Speed Sensing Valve ... 1900 ± 70 kPa (276 ± 10 psi)

Note: Speed sensing is measured at a flow rate of 40 L/min (11 US gpm) and at a temperature of 40 °C (104 °F).

(10) This is the mechanical centering for the front section of the pump.

(11) Torque for the 9X-6606 Hex Nuts ... 30 ± 2 N·m (22 ± 1 lb ft)

(12) Charge Relief Valve ... 3000 ± 150 kPa (435 ± 22 psi)

Note: The pressure for the charge relief valve is measured at 40 L/min (10.5 US gpm).

(13) Torque for the 204-1459 Relief Valve ... 70 ± 4 N·m (52 ± 3 lb ft)

(14) Torque for the 121-4870 Relief Valve ... 250 ± 10 N·m (184.3900 ± 7.3756 lb ft)

(15) This port is the Charge Pressure Port.

The 191-9744 Piston Pump

Illustration 2	g00882996

The 191-9744 Piston Pump has a clockwise rotation. The 191-9744 Piston Pump is a variable displacement pump.

(1) Torque for the 9S-8002 Plugs ... 15 ± 1 N·m (11 ± 1 lb ft)

(2) High Pressure Reverse Port A ... 35000 ± 2000 kPa (5075 ± 290 psi)

(3) The maximum displacement per revolution for the front section of the pump ... 30.5 cc (1.86 in³)

(4) Torque for the 204-1455 Locknut ... 22 ± 1 N·m (16 ± 1 lb ft)

(5) High Pressure Forward Port B ... 34000 ± 3000 kPa (5075 ± 290 psi)

(6) The maximum displacement per revolution for the rear section of the pump ... 30.5 cc (1.86 in³)

(7) This is the mechanical centering for the rear section of the pump.

(8) Torque for the 204-1457 Speed Sensing Valve ... 50 ± 3 N·m (37 ± 2 lb ft)

(9) Speed Sensing Valve ... 1700 ± 70 kPa (246.57 ± 10.15 psi)

Note: Speed sensing is measured at a flow rate of 40 L/min (11 US gpm) and at a temperature of 40 °C (104 °F).

(10) This is the mechanical centering for the front section of the pump.

(11) Torque for the 9X-6606 Hex Nuts ... 30 ± 2 N·m (22 ± 1 lb ft)

(12) Charge Relief Valve ... 3000 ± 150 kPa (435 ± 22 psi)

Note: The pressure for the charge relief valve is measured at 40 L/min (10.5 US gpm).

(13) Torque for the 204-1459 Relief Valve ... 70 ± 4 N·m (52 ± 3 lb ft)

(14) Torque for the 121-4870 Relief Valve ... 250 ± 10 N·m (184 ± 7 lb ft)

(15) This port is the charge pressure port.