TM 5-3895-379-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 6. Vibratory System Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Check power to vibratory control. 1. If 24 to 28 Vdc are not measured
11. Vibration Occurs In Only One
Drum.
Open left-side door assembly
at terminal 1 (wire C923-BU for
(TM 5-3895-379-10). If rear
rear drum or C927-PU for front
drum does not vibrate, disconnect
drum), turn engine start switch and
harness connector from rear drum
battery disconnect switch to OFF
solenoid connector. If front drum
position (TM 5-3895-379-10).
does not vibrate, disconnect
Connect harness connector to
harness connector from front
solenoid connector.
drum solenoid connector. Turn
battery disconnect switch and 2. If 24 to 28 Vdc are not measured
at terminal 1 (wire C923-BU for
engine start switch to ON position
rear drum or C927-PU for front
(TM
5-3895-379-10).
Set
drum), press vibration on/off
multimeter to measure Vdc.
Touch positive (+) probe of
switch once and try again. If 24 to
multimeter to terminal 1 (wire
28 Vdc are still not measured at
C923-BU for rear drum or C927-
terminal 1 (wire C923-BU for rear
PU for front drum) and negative
drum or C927-PU for front drum)
(-) probe of multimeter to good
and VIBE fuse is good, turn engine
ground.
start switch to off position (TM 5-
3895-379-10). Connect harness
connector to solenoid connector.
Go to Step 2.
WIRE C923-BU
WIRE C927-PU
HARNESS CONNECTORS
FRONT DRUM SOLENOID
REAR DRUM SOLENOID
401-2109
