TM 55-1520-240-23-10
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ADJUST WIPER ARM PRESSURE
12-37
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Dial Indicating Scale, 0 to 10 Pound
Wrench (T192)
Workstand
Materials:
None
Personnel Required:
CH-47 Helicopter Repairer
References:
TM 55-1520-240-T
Equipment Condition:
Windshield Wipers in Parked Position
(TM 55-1520-240-T)
NOTE
Deleted.
1.
Hook dial indicating scale (1) to wiper arm (2) at
wiper attach point (3).
2.
Pull scale until wiper blade (4) just lifts from
windshield (5).
3.
Read scale (1). If scale reads 8 pounds or more,
go to step 5. If scale reads less than 8 pounds,
go to step 4.
4.
Increase arm pressure by turning key (6)
counterclockwise. Use wrench (T192). Turn key
and pull scale (1) until scale reads more than
8 pounds.
5.
Remove scale (1).
Change 1
12-87
