TROUBLESHOOTING PROCEDURES - CONTINUED
Table 6. Vibratory System Troubleshooting Procedures - Continued.
TEST OR INSPECTION
10. Vibration Does Not Occur While 3. Check for power at amplitude 1. If 24 to 28 Vdc are not measured
select switch. Set amplitude
at terminals 1 and 3, turn engine
Amplitude Select Switch Is Set To Low
select switch to high pitch (push
start switch and battery disconnect
Pitch - Continued.
forward). Touch positive (+)
switch to OFF position (TM 5-
3895-379-10). Replace amplitude
(wire B921-WH) and negative (-
ground. Measure Vdc. Set 2. If 24 to 28 Vdc are measured at
terminals 1 and 3, repair or replace
amplitude select switch to low
wiring and connectors from
pitch (pull back). Touch positive
(+) probe of multimeter to
terminal 3 (wire C920-GN) and
negative (-) probe of multimeter
to good ground.
AMPLITUDE SELECT SWITCH
Remove all jewelry such as rings, dog tags and bracelets. If jewelry
contacts electrical connection a direct short may occur resulting in
injury or death, and damage to equipment.
Ensure that parking brake is engaged and propel control lever is in
neutral position before turning engine start switch to ON position. If
roller accidently starts or rolls, injury or death may occur.