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
4. Check for air in steering hydraulic
If problem is still present, refer to
1.
Steering Metering Pump
circuit.
Malfunction 10, Operation of Hand
Makes Noise and Steering
Metering Unit is Erratic in this work
Cylinder Rods Do Not Move
package.
Freely - Continued.
5. Check for excessive pump wear or
If damaged, replace steering piston pump
damaged.
(WP 0182 00).
1. Check hydraulic oil level (TM 5-3805- 1. Add or change oil if necessary (WP
2.
Too Much Force is Needed
290-10).
0137 00).
to Turn Steering Wheel.
2. If problem still exists, go to Test 2.
2. Allow hydraulic oil to reach normal
If problem still exists, go to Test 3.
operating temperature (TM 5-3805-
290-10).
3. Check steering metering pump for
1. Replace steering metering pump as
damage.
necessary (WP 0101 00).
2. If problem still exists, go to Test 4.
4. Check for blocked suction screen in
1. Unblock or replace hydraulic tank as
hydraulic tank.
necessary (WP 0140 00).
2. If problem still exists, go to Test 5.
5. Check margin and standby pressure
1. Adjust pressure as necessary.
2. If problem still exists, go to Test 6.
6. Check adjustment of pressure cutoff
1. Adjust pressure cutoff valve as
valve. Refer to Piston Pump Pressure
necessary.
Test and Adjustment (WP 0017 00).
2. If problem still exists, go to Test 7.
7. Perform Steering Meter Pump Test
If problem still exists, go to Test. 8.
8. Check steering cylinders for damage.
1. If damaged, replace steering cylinders
(WP 0103 00).
2. If problem still exists, replace coupler
valve (WP 0190 00).
1. Ensure steering frame lock is not
1. Secure steering frame lock in stowed
3.
Machine Does Not Turn
connected (TM 5-3805-290-10).
position (TM 5-3805-290-10).
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 5-3805-290-10) and check for dirt
0137 00).
in system.
2. If problem still exists, go to Test 3.
1. Repair any leaks.
3. Check for leaks at seals in steering
2. If problem still exists, go to Test 4.
cylinder pistons, accessory valve
between cylinder lines, and ports.
4. Check for no oil flow going to hand
1. Repair as necessary.
metering unit.
2. If problem still exists, go to Test 5.
