TM 5-3805-290-23-1
TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
0008 00
Table 5. Steering System Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. Check for air in hydraulic oil.
1. If air is present, repair any leaks.
3.
Machine Does Not Turn
2. If problem still exists, go to Test 6.
When Steering Wheel is
Turned - Continued.
6. Check for a restriction or binding in
1. Remove any restrictions or binding.
2. If problem still exists, go to Test 7.
steering linkage.
7. Perform Steering Metering Pump Test
If problem still exists, go to Test 8.
8. Check steering column upper shaft and 1. Replace any damaged part (WP 0099
lower splines for looseness or damage.
00).
2. If problem still exists, replace coupler
valve (WP 0190 00).
3. If problem still exists, replace steering
metering pump (WP 0101 00).
1. Ensure steering axle is not overloaded. If problem still exists, go to Test 2.
4.
Machine Turns Slowly in
Both Directions.
2. Check margin pressure and standby
1. Adjust as necessary (WP 0016 00).
pressures (WP 0016 00).
2. If problem still exists, go to Test 3.
3. Perform Metering Pump (HMU) Test
If problem still exists, go to Test 4.
4. Check steering cylinder for damage.
1. If damaged, replace steering cylinders
(WP 0103 00).
2. If problem still exists, replace coupler
valve (WP 0190 00).
1. Check steering linkage for wear or
1. Replace any damaged parts (WP 0099
5.
Machine Turns Slowly in
damage.
00).
One Direction.
2. If problem still exists, go to Test 2.
2. Perform Steering Metering Pump Test
If problem still exists, go to Test 3.
3. Check steering cylinders for damage.
If damaged, replace steering cylinders (WP
0103 00).
1. Check steering return-to-tank line for
1. Remove restriction or replace line as
6.
Steering Wheel Does Not
restriction causing high pressure (WP
necessary.
Return to Center Position
0102 00).
2. If problem still exists, go to Test 2.
Correctly.
2. Perform Steering Metering Pump Test
If problem still exists, go to Test 3.
3. Check steering column to ensure
Realign if necessary.
correct alignment with steering
metering pump (WP 0101 00).
