TM 5-3805-291-23-1
TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
0008 00
Table 5. Steering System Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Torque steering metering pump bolts to
4. Check if bolts on steering metering
1. Too Much Force is Needed to
Turn Steering Wheel -
pump are too tight (WP 0128 00).
correct specifications (WP 0128 00 and
Continued.
2. If problem still exists, go to Test 5.
5. Check adjustment of backup relief
1. Adjust backup relief valve as
valve. Refer to Relief Valve (Pump
necessary.
Backup) Test and Adjustment (WP
2. If problem still exists, go to Test 6.
6. Perform Piston Pump (Steering) High
Pressure Test and Adjustment (WP
1. Ensure steering frame lock is not
1. Secure steering frame lock in stowed
2.
Machine Does Not Turn
connected (TM 5-3805-291-10).
position (TM 5-3805-291-10).
When Steering Wheel is
2. If problem still exists, go to Test 2.
Turned.
2. Check hydraulic oil for correct level
1. Add or change oil if necessary (WP
(TM 5-3805-291-10) and check for dirt
0148 00).
in system.
2. If problem still exists, go to Test 3.
3. Check steering linkage for mechanical
1. If damaged, replace steering
failure.
components.
2. If problem still exists, go to Test 4.
4. Perform all Steering Pressure Tests
1. If problem still exists, replace metering
and Adjustments (WP 0016 00).
pump (WP 0128 00).
2. If problem still exists, replace steering
control valve (WP 0127 00).
1. Perform Adjusting Flow Compensator
If problem still exists, go to Test 2.
3.
Machine Turns Slowly in
Valve (WP 0016 00).
Both Directions.
2. Perform Piston Pump (Steering)
If problem still exists, go to Test 3.
Margin Pressure Test and Adjustment
3. Perform Steering Control Valve
If problem still exists, go to Test 4.
Adjustment (WP 0016 00).
4. Perform Piston Pump (Steering) High
If problem still exists, replace steering
Pressure Stall Test and Adjustment
metering pump (WP 0128 00).
5. Check pump pressure (WP 0016 00).
If faulty, replace pump (WP 0188 00).
Perform Steering Time Check (WP 0016
If faulty, replace steering control valve
4.
Machine Turns Slowly in
00).
(WP 0127 00).
One Direction.
1. Perform Pistons Pump (Steering)
1. Adjust pressure as necessary.
5.
Machine Does Not Turn
Margin Pressure Test and Adjustment
2. If problem still exists, go to Test 2.
Evenly.