TM 5-3805-280-10
Operational Checkout
WINDSHIELD WIPER
Key switch ON.
YES: Go to next check.
CIRCUIT CHECK
Turn wiper switch (A) to INT position.
NO: Check if wiper
harness and/or fuse is
Does wiper operate intermittently?
connected. Go to your
authorized dealer.
Turn wiper switch to ON position.
Does wiper operate continuously?
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Move wiper switch to OFF position.
Does wiper arm stop in park position?
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WINDSHIELD WASHER
IMPORTANT: Washer motor may be damaged if
YES: Go to next check.
CIRCUIT CHECK
washer switch is held for more than 20 seconds, or
continually operated with no fluid in the windshield
NO: Check washer fluid
washer tank.
level and check wiper
fuse. Go to your
Key switch ON
authorized dealer.
Push washer switch (A)
T102107 UN26JUL96
Does washer fluid squirt on windshield?
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CAB DOME LIGHT
Key switch ON.
YES: Go to next check.
CIRCUIT CHECK
Move switch (A) to on position.
NO: Check fuse. Go to
your authorized dealer.
Does cab dome light come on?
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