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
2. Perform Steering Time Check (WP
1. Adjust steering control valve (WP
5.
Machine Does Not Turn
Evenly - Continued.
2. Replace steering metering pump (WP
0128 00).
Perform Steering Time Check (WP 0016
1. If faulty, replace steering control valve
6.
Machine Turns Without
00).
(WP 0127 00).
Operator Turning Steering
2. If problem still exists, replace steering
Wheel.
metering pump (WP 0128 00).
1. Perform Relief Valve (Pump Backup)
If problem still exists, go to Test 2.
7.
Machine Turns Slowly in
Test and Adjustment (WP 0016 00).
Both Directions Only When
Turning Against a Load
(High Resistance).
2. Perform Steering Time Check (WP
1. If faulty, replace steering control valve
(WP 0127 00).
2. If problem still exists, go to Test 3.
3. Perform Piston Pump (Steering) High
1. Adjust as necessary.
Pressure Stall Test and Adjustment
2. If faulty, replace pump (WP 0188 00).
Steering Wheel Turns With 1. Perform Steering Time Check (WP
If faulty, replace control valve (WP 0127
8.
00).
Slight Resistance but
Machine Will Not Turn.
2. Check for leaks in piston seals.
If faulty, replace steering cylinders (WP
0125 00).
1. Perform Steering Time Check (WP
1. Adjust as necessary.
9.
When at Fast Speeds,
2. If faulty, replace control valve (WP
Machine Turns Too
0127 00).
Quickly with Small
3. If problem still exists, go to Test 2.
Corrections.
2. Perform Pistons Pump (Steering)
1. Adjust pressure as necessary.
Margin Pressure Test and Adjustment
2. If problem still exists, replace steering
metering pump (WP 0128 00).
1. Check hydraulic oil for correct oil level 1. Add or change oil if necessary (WP
10. Steering Metering Pump
0148 00).
(TM 5-3805-291-10), viscosity or
Makes Noise and Steering
grade (WP 0020 00), and
2. If problem still exists, go to Test 2.
Cylinder Rods Do Not Move
Freely.
2. Check for a loose connection at oil line 1. Tighten any loose connections or, if
on inlet side of pump (WP 0124 00).
damaged, replace line(s) (WP 0124
00).
2. If problem still exists, go to Test 3.
If problem still exists, go to Test 4.
3. Check for air in steering hydraulic
circuit by visually checking sight glass
or pulling dipstick out and looking for
bubbles on dipstick.