Nexen SE 625 883000 - Manual (Page 8)

8 FORM NO. L-20078-C-0210
PARTS REPLACEMENT
NOTE
For repair convenience, Nexen’s DAP separates into three major subassemblies: Output Housing/Shaft Assembly, Disc-
Hub/Spring Assembly, and Input Housing/Friction Disc Assembly.
FRICTION FACING REPLACEMENT
Inspect Friction Facings (Item 7) and replace when worn
down to approximately 5/32 inch [3.9 mm] thick.
1. Remove DAP from it’s mounting.
2. Remove Cap Screws (Item 25) and Lockwashers
(Item 19).
3. Remove Input Housing (Item 4) and Friction Disc
Assembly (Item 11),
4. Remove Clutch Friction Facing (Item 7).
5. Clamp or bolt Spring Housing (Item 5) to Output
Housing (Item 3).
a. Apply a minimum of 50 psi. to disengage brake
or turn Set Screws (Item 24) to manually release
brake.
b. Rotate Disc-Hub (Item 2), aligning brake facing
screw clearance holes with each Machine Screws
(Item 23).
c. Remove Machine Screws (Item 23) and slide
Friction Facing (Item 7) sections out of assembly.
6. Install new Clutch Friction Facing (Item 7).
O-RING REPLACEMENT
1. Slide Disc-Hub (Item 2), Spring Housing (Item 5),
Piston (Item 6) and Bearing (Item 15) Assembly of
Output Shaft Spline (Item 1).
2. Remove O-Rings (Items 21 22).
3. Clean O-Ring grooves and O-Ring contact surfaces.
4. Lubricate O-Ring grooves, O-Ring contact surfaces,
and new O-Rings with O-Ring lubricant.
5. Install New O-Rings (Items 21 & 22).
6. Turn Set Screws (Item 24) clockwise until Push Rod
(Item 30) is exposed.
7. Pull Push Rods out of sockets.
8. Remove O-Rings (Item 29).
9. Clean O-Ring Grooves and O-Ring contact surfaces.
10. Lubricate O-Ring grooves, O-Ring contact surfaces,
and new O-Rings with O-Ring lubricant.
11. Install new O-Rings (Item 29).
12. Push the Push Rods (Item 30) back into sockets.