TM 5-5420-202-10
0046
SYMPTOM
MALFUNCTION
CORRECTIVE ACTION
WARNING
An installed battery can overheat and
may explode when vehicle power is
used. Remove viewer battery from
viewer and store in viewer stowage
box before connecting power cable.
Failure to comply may result in
personnel injury or death.
STEP 3. Remove viewer battery from viewer. Refer
to WP 0011. Store battery in viewer stowage box
before connecting cable.
STEP 4. Check if picture quality is better using
vehicle power than when using battery power. If yes,
replace battery. Refer to WP 0011.
Gas particulate f lter is
inoperative.
LACK OF
AIR IN GAS-
PARTICULATE
FILTER UNIT.
STEP 1. Ensure spring clip has been lifted from air
intake opening on f lter unit. Refer to WP 0037. If not,
lift from air intake opening.
STEP 2. Check electrical connector at precleaner and
f lter unit. If connector is loose, tighten.
STEP 3. Check if precleaner and f lter unit motor is
operating by listening for motor noise. If motor is not
running, notify f eld maintenance.
Bridge inoperative.
BRIDGE FAILS TO
LIFT OFF BRIDGE
SEAT OR FAILS
TO LIFT WHEN
RETRIEVING
BRIDGE.
STEP 1. Check clutch and ensure it is fully engaged.
STEP 2. Check for low level in launcher hydraulic
reservoir. Refer to WP 0074.
STEP 3. If hydraulic f uid is low, ref ll reservoir.
Refer to WP 0074. Repeat launching or retrieving
procedures. Refer to WP 0018 and WP 0020.
STEP 4. If launcher hydraulic f uid level is correct and
bridge will not raise, notify f eld maintenance.
BRIDGE FAILS TO
OPEN DURING
LAUNCHING
OR FAILS TO
CLOSE WHEN
RETRIEVING.
STEP 1. Check for low level in launcher hydraulic
reservoir. Refer to WP 0074. If hydraulic f uid is low,
ref ll reservoir. Refer to WP 0074. Repeat launching
or retrieving procedures. Refer to WP 0018 and
WP 0020.
0046-3
Table 1. Auxiliary Systems and Controls - Continued.