TM5-3820-256-10
3-13.
Rotary Table Drive. Troubleshooting procedures for the rotary table drive are listed in table 3-9.
a. The table lists the common malfunctions that you may find during the operation or maintenance of the rotary
table drive. You should perform the tests/ inspections and corrective actions in the order listed.
b. This manual cannot list all malfunctions that may occur, nor all tests/inspections and corrective actions. If a
malfunction is not listed or is not corrected by listed corrective action, notify your supervisor.
Table 3-9. Troubleshooting the Rotary Table Drive
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
ROTARY TABLE
Step 1. Check to see if
Move rotary table control lever
DOES NOT RO-
rotary table transmission is
to center position, move rotary
TATE.
in gear.
table gear range selector lever
from neutral to gear range 1,
2, 3, or 4.
Step 2. Check to see if
Move rotary table control lever
rotary table control lever
from center position into an
is in an operating position.
operating range for desired
direction of rotation.
Step 3. Check oil level
Add oil as needed.
in hydraulic oil tank.
Step 4. Check to see if
Stop truck engine, open valve,
hydraulic pump suction line
and restart truck engine.
valve is closed.
Step 5. Check for loose
Tighten loose connections.
hydraulic pump suction line
connections.
Step 6. Check to see if
Engage power take-off.
truck transfer case power
take-off is engaged.
2.
ROTARY TABLE
Step 1. If using pulldown,
Move pulldown power control
STALLS.
check to see if too much
to OFF position. If rotary
pulldown pressure is being
table restarts, continue drilling
used.
without pulldown or decrease
pulldown pressure by rotating
pulldown motor control counter-
clockwise.
Step 2. If not using
Rotate holdback control clock-
the pulldown, check to see
wise. If rotary table restarts,
if enough, holdback pressure
continue drilling.
is being used.
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