Bendix Commercial Vehicle Systems COMPACT 500 9/87 - Manual (Page 25)

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A. Gauge pressure should read the same as the power
steering pump relief pressure. (See Step 1 under
“Relief Pressure Test - Power Steering Pump”)
B. With system pressure at pump relief, read the flow
meter. If a flow greater than 3.5 quarts per minute is
noted, internal leakage is excessive and the steering
gear requires repair.
6. Repeat Test 5 turning the steering wheel in the opposite
direction.
IMPORTANT: Remove the pressure relief valve test
plug assembly which was in Step 4, before placing
the vehicle in service.
XI. TROUBLESHOOTING
PRELIMINARY CHECKS
Before proceeding to the troubleshooting headings, it is
strongly recommended that some preliminary checks be
made and a test ride be taken to eliminate unnecessary
work.
1. Check for proper and equal tire inflation on the steering
axle. Note any abnormal tire wear which may be
attributable to front end alignment.
2. Make certain the power steering reservoir oil level is
correct.
3. Make certain the power steering pump belt is not slipping.
4. Visually inspect the following components for obvious
damage, misadjustment and possible binding.
a. steering column and universals or couplings.
b. steering arms, tie rods, tie rod ends and knuckles.
c. general looseness in the steering linkages.
5. Check hoses for sharp bends, kinks and proper size.
The most common faults may be grouped under the following
headings:
1. Power steering does not operate.
2. The power steering is still in one direction and normal in
the other.
3. The power steering tends to turn itself when the engine
is started.
4. Excessive free play at the steering wheel.
5. The power steering operates normally but is intermittently
hard.
6. Oil leaks.
7. The power steering is still when turning the steering wheel
quickly.
8. The power steering does not return correctly.
9. The power steering operates but with noise, turbulence
or vibration.