Content .. 1271 1272 1273 1274 ..
Jeep Grand Cherokee WK. Manual - part 1273
5. Connect Adapter 8630-4 to the power steering gear.
6. Open the test valve completely.
7. Start engine and let idle long enough to circulate power steering fluid through the flow/pressure test gauge.
8. Shut off the engine and check the fluid level, add fluid ass necessary. Start engine again and let idle.
9. The initial pressure reading should be 345-552 kPa (50-80 psi). If pressure is higher inspect the hoses for restric-
tions and repair as necessary.
10. Increase the engine speed to 1500 RPM and read the flow meter. The reading should be 2.4 - 2.8 GPM if the
reading is below this specification the fan should be replaced.
CAUTION: This next step involves testing maximum fan motor steering relief pressure. Do not leave the
valve closed for more than three seconds.
11. Close the valve fully three times for three seconds and record highest pressures indicated each time. All three
readings must be at fan motor steering relief pressures.
12. Open the test valve and turn the steering wheel to the extreme left and right positions against the stops. Record
the highest pressure readings at each position. If pressure readings are not within 50 psi from each other, the
gear is leaking internally and must be repaired.
PUMP SPECIFICATIONS
ENGINE
RELIEF PRESSURE ± 50
FLOW RATE (GPM)
5.7L
1241 kPa (1800 psi)
1500 RPM 2.9 - 3.3 GPM Minium
@ 200 psi
SPECIFICATIONS
TORQUE CHART
TORQUE SPECIFICATIONS
DESCRIPTION
N·m
Ft. Lbs.
In. Lbs.
Pitman Arm
Shaft Nut
251
185
—
Drag Link
Pitman Arm Nut
88
65
—
Drag Link
Knuckle Nut
47
35
—
Drag Link
Clamp Nuts
41
30
—
Tie Rod
Knuckle Nut
47
35
—
Tie Rod
Clamp Nuts
41
30
—
Steering Damper
Axle Bolt
88
65
—
Steering Damper
Tie Rod Nut
41
30
—
19 - 6
STEERING
WK