TM 5-3895-379-23-1
0055
MALFUNCTION
No Power To Amplitude Select Switch.
CORRECTIVE ACTION
1.
Remove nine screws and washers and remove panel from operator station.
2.
Set vibration control switch to manual (MAN) position.
3.
Turn battery disconnect switch to ON position (TM 5-3895-379-10).
4.
Turn engine start switch to ON position (TM 5-3895-379-10).
5.
Touch positive (+) probe of multimeter to terminal 2 (wire C933-GN).
6.
Touch negative (-) probe of multimeter to good ground.
7.
If 24 to 28 VDC are not measured at terminal 2 (wire C933-GN), press vibration on/off switch once
and try again.
If 24 to 28 VDC are not measured at terminal 1 (wire C925-GN) and VIBE fuse is good,
perform the following:
(1)
Turn engine start switch to OFF position (TM 5-3895-379-10).
(2)
Turn battery disconnect switch to OFF position (TM 5-3895-379-10).
(3)
Repair or replace wire C933-GN and connectors to VIBE fuse holder (WP 0195).
PANEL ASSEMBLY
SCREW
WASHER
WIRE C920-GN
WIRE
C933-GN
TERMINAL 3
WIRE
B921-WH
TERMINAL 1
TERMINAL 2
AMPLITUDE SELECT
OPERATOR
WASHER
SCREW
SWITCH
STATION
T0145SWR
Figure 2. Amplitude Select Switch Wiring.
