Steering wheel play check
1. Set the front wheels to straight ahead.
2. Measure the distance the steering wheel turns without moving the wheels.
Note: Standard value: 0-30mm.
3. If the backlash exceeds standard value, check up a steering column, a shaft and drafts.
Checking the force on the steering wheel when the vehicle is stationary
1. Place the vehicle on a level surface and set the front wheels to the straight ahead position.
2. Start the engine and turn the steering wheel from lock to lock several times to warm up the power steering fluid.
3. Install a dynamometer on the steering wheel. Set the engine speed to 500-700 rpm, then turn the steering wheel and read the dynamometer value when the wheels begin to turn.
Note: Standard value: 3.0 kgf.
4. If the measured value exceeds the standard, check the steering gear and power steering pump.
Power steering fluid replacement
Attention. Always use original PSF-4 fluid. Using a different type of power steering fluid or transmission oil may result in increased wear and difficult handling in cold weather.
1. Raise the reservoir, then disconnect the return hose to drain the fluid. Be careful not to spill liquid on the body and other parts. Wipe up spilled liquid immediately.
2. Connect a suitable diameter tubing to the disconnected return hose and dip the end of the hose into a suitable container.
3. Raise the front wheels and turn the steering wheel from lock to lock until fluid stops flowing from the tube.
4. Connect the return hose to the tank.
5. Fill reservoir with power steering fluid and bleed air from power steering system.
Removing air from the system
Attention. Always use original PSF-4 fluid. Using a different type of power steering fluid or transmission oil may result in increased wear and difficult handling in cold weather.
1. Raise the front wheels.
2. Fill reservoir with power steering fluid up to the mark «COLD MAX» on the tank.
Attention. Try not to start the engine. If the engine is started before steps 3 and 4 are completed, there may be abnormal noise from the power steering pump.
3. 5 - 6 times turn the steering wheel from lock to lock for 15 - 20 seconds.
4. Turn the crankshaft 1 - 2 times with the starter, quickly turning the ignition key from the position «ON» into position «START», but without starting the engine.
5. 5 - 6 times turn the steering wheel from lock to lock for 15 - 20 seconds. Start the engine and continue turning the steering wheel from lock to lock until no air bubbles appear in the reservoir.
6. Check the color and level of the power steering fluid in the reservoir. If necessary, add fluid to the level «COLD MAX».
Note: If the fluid level rises and falls as the steering wheel is turned, the fluid overflows from the reservoir when the engine is started, or the fluid is white, the air has not been completely bled from the power steering system. Therefore, repeat steps 5 and 6 if necessary.
Checking the discharge pressure of the hydraulic booster pump
1. Disconnect the high pressure pipe from the power steering pump and install the special tools between the pump and the pipe as shown in the figure below.
1. Temperature sensor
2. Adapter (09572-21200, 09572-22100)
3. Oil pump pressure relief
4. Oil pressure gauge (09572-21000)
5. Stop valve (closed)
6. Pressure hose
7. Adapter for oil pressure gauge (09572-22100)
8. Oil pump
9. Tank
2. Start the engine and turn the steering wheel several times to raise the temperature of the power steering fluid to approximately 50 - 60°C.
3. Set the engine speed to approximately 600 rpm.
4. Close the special tool check valve and measure the fluid pressure.
Note: Discharge pressure: 90 - 100 kg/cm2.
Attention. Do not hold gauge shut-off valve closed for more than 10 seconds.
5. Remove the special tools and connect the high pressure line to the pump. Tighten the eye bolt.
6. Remove air from the hydraulic booster system.