Click here to make tpub.com your Home Page

Page Title: Assembly
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

TM55-1730-228-13&P
4-12. HYDRAULIC MOTOR, BRAKE AND DRIVE HUB ASSEMBLY- REPAIR (Continued)
4-12
(3) Assembly:
(a) Press bearing (15, Figure 4-12) in housing (16). Install retaining ring (12).
NOTE
Lubricate all packings with clean hydraulic oil before installing.
(b) Assemble new back-up ring (21) and preformed packings (19) on piston (17). Assemble new back-up
ring (20) and preformed packing (18) in piston (17). Lube packings with clean hydraulic oil.
(c) Position the piston on power plate visually aligning the center of the cut-outs in the piston with the torque
pin (7) holes in the power plate.
Installation depth of piston into power plate is critical to proper brake function . Do not exceed .120 in. depth or piston
will cock, resulting in a complete loss of braking.
(d) Carefully press piston into power plate so that the piston surface (at cutouts) is flush to .120 in. below
the finished inner surface of the plate. See detail A.
(e) Install shaft (14) through bearing from inside of housing (16).
(f) Install retaining ring (13) on shaft (14).
(g) Install new preformed packing (11) in housing (16).
(h) Install two torque pins (7) into their respective holes in the housing (16).
(i) Place spring retainer (10) in housing (16).
NOTE
Discs (rotating and stationary) must be clean, dry and free of oil.
(j) Place eight springs (8) in position on spring retainer and insert eight springs (9) inside springs (8).
(k) Install largest stationary disc (6) first. Align stationary disc (6) with the torque pins, rotating disc with
splined shaft (14), and one spring on each torque pin between each stationary disc.
(l) Install remaining four friction disc sets composed of a stationary disc, friction disc, and springs in the
same manner as step (k).
(m) Install final stationary disc.
(n) Place power plate/piston assembly on housing and align holes.
(o) Install capscrews (1). Tighten capscrews sequentially, one turn at a time, until power plate is properly
seated on housing. Torque capscrews to 50-60 ft-lb (68-82 Nm).
GO ON TO NEXT PAGE
4-39

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business