TM 5-2420-231-23-1
0082
Table 1. Steering Does Not Operate Correctly.
0082
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Steering Does Not Operate
Test Step 1. Test Operation of
Correctly
Loader, Backhoe, and Steering
Systems.
1. Start engine (TM 5-2420-231-10).
2. Operate loader lift, clamshell, and Loader Lift, Clamshell, and Bucket
bucket (TM 5-2420-231-10). Moni- Operate Normally - Proceed to step 3.
tor and record machine operation. Loader Lift, Clamshell, and Bucket
Operate Slowly or Will Not Operate -
Diagnose front end loader (WP 0064).
3. Operate backhoe swing, dipper,
Backhoe Operates Normally -
boom, and bucket (TM 5-2420-
Proceed to step 4.
231-10). Monitor and record
Backhoe Swing, Dipper, Boom, and
machine operation.
Bucket Operate Slowly or Will Not
Operate - Diagnose backhoe (WP
4. Operate steering (TM 5-2420-231- Steering Operates Slowly or Will Not
10). Monitor and record machine
Operate - Proceed to Test Step 2.
operation.
Steering Operates Normally -
Troubleshooting complete.
Test Step 2. Inspect Hydraulic Fluid
Tank for Fluid Level.
1. Check hydraulic fluid level on sight
Hydraulic Fluid at or Below ADD
gauge (Figure 1) (TM 5-2420-231-
Level - Add hydraulic fluid to the FULL
10). Fluid level should be between
mark (WP 0086).
the ADD and FULL marks.
Proceed to Test Step 6.
Hydraulic Fluid Above ADD Level -
Proceed to step 2.
2. Check for discoloration of hydrau-
Hydraulic Oil Is Discolored - Perform
lic oil in sight glass.
Hydraulic Reservoir Drain and Fill (WP
Change hydraulic oil filter (WP 0268).
Proceed to Test Step 3.
