TM 5-3895-379-23-1
0028
MALFUNCTION
No Power To Horn Switch.
CORRECTIVE ACTION
1.
Remove nine screws and washers and remove panel from operator station.
2.
Turn battery disconnect switch to ON position (TM 5-3895-379-10).
3.
Turn engine start switch to ON position (TM 5-3895-379-10).
4.
Touch positive (+) probe of multimeter to terminal 1 (wire 121-YL).
5.
Touch negative (-) probe of multimeter to good ground.
If 24 to 28 VDC are not measured (wire 121-YL) and BACKUP ALARM 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 wiring and connectors to water spray fuse holder (WP 0195).
PANEL ASSEMBLY
SCREW
WASHER
SCREW
HORN
WASHER
SWITCH
WIRE
322-GY
WIRE 121-YL
COVER
T0223SWR
Figure 2. Horn Switch Wiring.