TM 5-3895-379-23-1
0056
MALFUNCTION
No Power At Amplitude Select Switch Terminal 2.
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 2 (wire C933-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
SCREW
ASSEMBLY
WASHER
WIRE C920-GN
SCREW
WASHER
TERMINAL 3
WIRE C933-GN
WIRE B921-WH
TERMINAL 1
AMPLITUDE SELECT
TERMINAL 2
OPERATOR
SWITCH
STATION
T0148SWR
Figure 2. Amplitude Select Switch Wiring.