TM 5-2420-231-23-1
0080
Table 1. Stabilizers and Backhoe Auxiliary Hydraulic Controls Do Not Operate.
0080
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 1. Test Operation of
Stabilizers and Backhoe
Backhoe Auxiliary Hydraulic
Auxiliary Hydraulic Controls
Controls.
Do Not Operate
1. Start and operate machine (TM 5-
2420-231-10).
2. Turn pilot control switch (Figure 1,
Pilot Control Switch Illuminates -
Item 1) to the on position (TM 5-
Proceed to step 3.
2420-231-10).
Pilot Control Switch Does Not
Illuminate - Diagnose backhoe pilot
controls (WP 0073), then proceed to
Test Step 5.
Figure 1. Pilot Control Switch.
0080
NOTE
Pilot control controller indicator should flash on for 3 seconds then off for
less than 1 second continuously (WP 0006) for a normal system when
activated.
3. Wait 2 seconds before operation.
