TM 5-2420-231-23-1
0081
Table 1. Backhoe Auxiliary Hydraulic Control Does Not Operate Correctly - Continued.
081
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6.
Monitor upper backhoe auxiliary
Upper Backhoe Auxiliary Hydraulic
Backhoe Auxiliary Hydraulic
Hoses Flex When Activated - Proceed
hydraulic hoses (Figure 3, Item 1)
Control Does Not Operate
on machine.
to Test Step 2.
Correctly - Continued
Upper Backhoe Auxiliary Hydraulic
Hoses Do Not Flex When Activated -
Proceed to Test Step 6.
Figure 3. Upper Backhoe Auxiliary Hydraulic Hoses.
0081
7. Using backhoe auxiliary control
Backhoe Auxiliary Hydraulic
buttons (Figure 2, Item 1), operate
Attachment Operates Slowly -
backhoe hydraulic auxiliary attach-
Proceed to Test Step 2.
ment forward then reverse (TM 5-
Backhoe Auxiliary Hydraulic
2420-231-10). Monitor and record
Attachment Operates Intermittently
machine operation.
or Will Not Operate - Proceed to Test
Step 6.
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.