TM 55-1520-240-23-9
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ASSEMBLE ROLL VISCOUS DAMPER (1025-820) (AVIM)
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INITIAL SETUP
Applicable Configurations:
All
Tools:
Hydraulic Repairer’s Tool Kit, NSN 5180-00-323-4891
Container, 2 Quart
Retaining Ring Pliers
Arbor Press
Soft Jawed Vise
Materials:
Cloths (E120)
Damper Fluid (E176)
Lockwire (E231)
Parts:
Preformed Packing
Quad Ring
Personnel Required:
Aircraft Pneudraulics Repairer
Inspector
References:
TM 55-1520-240-23P
1.
Position nameplate (1) on case (2). Install four
screws (3).
2.
Install bearing (4) in case (2) until bottomed. Use
arbor press.
3.
Install case (2) in vise (5).
4.
Install retaining ring (6) in case (2). Use retaining
ring pliers.
5.
Install quad ring (7) in case (2).
6.
Install two packings (8) on valve (9).
7.
Install valve (9) in valve shaft (10). Turn
clockwise. Do not tighten.
8.
Position stop (11) on shaft (10). Align holes (12).
9.
Install pin (13) in holes (12) until flush.
10.
Install shaft (10) thread end (14) inward, in case
(2) until bottomed. Use soft faced hammer.
INSPECT
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