ON-VEHICLE INSPECTION (Power steering) — Bleeding cont'd, turning force, hydraulic system
ST-8prose procedureBleeding Hydraulic System (Cont'd)
Symptoms of incomplete bleeding: a) Generation of air bubbles in reservoir tank; b) Generation of clicking noise in oil pump; c) Excessive buzzing in oil pump.
NOTE
While the vehicle is stationary or while turning the steering wheel slowly, fluid noise may occur in the valve or oil pump. This noise is inherent in this steering system, and it will not affect performance or durability of the system.
Checking Steering Wheel Turning Force
Steering-wheel turning-force check
- 1Park vehicle on a level, dry surface and set parking brake.
- 2Start engine.
- 3Warm up power steering fluid to adequate operating temperature.Tires need to be inflated to normal pressure.
- 4Check steering wheel turning force with engine idling when steering wheel has been turned 360° from neutral position.
SST108B
| Specification | Value |
|---|---|
| Power-steering fluid temperatureWarm-up before turning-force check. | Approximately 60 - 80°C (140 - 176 °F) |
| Steering wheel turning forceAfter turning 360° from neutral, engine idling. | 39 or lessN (4 kg, 9 lb) |
Power-steering fluid temperatureWarm-up before turning-force check.
Approximately 60 - 80°C (140 - 176 °F)
Steering wheel turning forceAfter turning 360° from neutral, engine idling.
39 or lessN (4 kg, 9 lb)
Checking Hydraulic System
IMPORTANT
Before starting, check belt tension, driving pulley and tire pressure.
Hydraulic-system pressure check setup
- 1Set Tool. Open shut-off valve. Then bleed air. (See "Bleeding Hydraulic System".)
- 2Run engine. Make sure temperature of fluid in tank rises to 60 to 80°C (140 to 176°F).