Checking Steering Wheel Turning Force
CHECKING STEERING WHEEL TURNING FORCE1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is approximately 50 to 80°C (122 to 176°F).]
4. Check steering wheel turning force when steering wheel has been turned 540° from neutral position.
Steering wheel turning force: 7.45 Nm (0.76 kg-m, 66 inch lbs.)
NOTE: Multiply the distance (L) from the hook of spring scale to the center of steering wheel by the measurement value with a spring scale.
5. If steering wheel turning force is out of the specification, check rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to PS-31, "CHECKING RELIEF OIL PRESSURE". On-Vehicle Inspection and Service
a. Disconnect lower joint and steering knuckle from steering gear assembly.
b. Start and run engine at idle to make sure steering fluid has reached normal operating temperature.
c. While pulling outer socket slowly in ±11.5 mm (±0.453 inch) range from neutral position, make sure rack sliding force is within specification.
Rack sliding force: 171 - 234 N (17.4 - 23.9 kg, 38 - 53 lbs.)
d. If rack sliding force is not within specification, overhaul steering gear assembly.