TM 5-3895-379-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 6. Vibratory System Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Vibration Does Not Work In Forward 8. Check for power to amplitude 1. If 24 to 28 Vdc are not measured
3.
at terminal 2 (wire C933-GN),
select switch. Touch positive (+)
and Reverse Travel - Continued.
press vibration on/off switch once
probe of multimeter to terminal 2
and try again. If 24 to 28 Vdc are
(wire C933-GN) and negative (-)
still not measured at terminal 2
probe of multimeter to good
(wire C933-GN) and VIBE fuse is
ground.
good, turn engine start switch and
battery disconnect switch to OFF
position (TM 5-3895-379-10).
Repair or replace wire C933-GN
and connectors (WP 0108 00).
2. If 24 to 28 Vdc are measured at
terminal 2 (wire 933-GN), go to
Step 9.
9. Check for power at amplitude 1. If 24 to 28 Vdc are not measured
at both terminals 1 and 3, turn
select switch. Set amplitude
engine start switch and battery
select switch to high pitch (push
disconnect switch to OFF position
forward). Touch positive (+)
(TM 5-3895-379-10). Replace
probe of multimeter to terminal 1
amplitude select switch (WP 0073
(wire B921-WH) and negative (-
) probe of multimeter to good
ground. Measure Vdc. Set 2. If 24 to 28 Vdc are measured at
amplitude select switch to low
terminals 1 and 3, turn engine start
pitch (pull back). Touch positive
switch and battery disconnect
(+) probe of multimeter to
switch to OFF position (TM 5-
terminal 3 (wire B920-GN) and
3895-379-10). Repair or replace
wiring and connectors from
negative (-) probe of multimeter
amplitude select switch (WP 0073
to good ground.
PANEL
ASSEMBLY
SCREW
WIRE C920-GN
WASHER
SCREW
TERMINAL 3
WASHER
WIRE
C933-GN
WIRE
B921-WH
TERMINAL 1
TERMINAL 2
AMPLITUDE SELECT SWITCH
OPERATOR STATION
401-229
0006 00-110
