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 TM 5-1940-277-20
TM 1940-20/2
1.
Using socket remove four screws (1) securing front cover (2).
2.
Remove cover (2).
3.
Using socket remove two screws (3) securing end cover plate (4) on idler pulley end of wiper unit. Remove end
plate (4).
4.
Using hex key loosen idler pulley retaining screw (5) and release tension on drive belt (6).
Remove drive belt (6) and carriage assembly (7) from drive pulley (6) and idler pulley (9).
5.
6.
Remove carriage assembly (7) and drive belt (6) by sliding out through end cover plate (4) opening.
7.
Using wrench remove two nuts (10) and holder (11) from two bolts (12) on support plate (13).
Carefully remove drive belt (6) from carriage assembly (7).
6.
Do not lubricate wiper carriage, belt or rollers. Rollersare self-lubricating. Any pe-
troleum-based lubricants will damage belt.
1.
Install drive belt (6), holder (11) and two nuts (10) on bolts (12) of support plate (13) and tighten using wrench.
2.
Replace carriage assembly (7) on wiper unit by sliding in through end cover plate opening (4).
Position drive belt (6) around drive pulley (6) and idler pulley (9).
3.
4.
Apply tension to tighten drive belt (6) by pulling idler pulley (9) in its slot away from drive pulley (6) and tighten idler
pulley retaining screw (5) using hex key.
5.
Replace end cover plate (4), install two retaining screws (3) and tighten using socket.
Replace front cover plate (2), install four retaining screws (1) and tighten using socket.
6.
INSTALL:
Replace windshield wiper drive unit (refer to paragraph 3-14).
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