Nexen DPC-13T 962200 - Manual (Page 14)

14
FORM NO. L-20093-L-1209
PILOT ASSEMBLY BEARINGS (ITEM 25).
Refer to Figure 11.
NOTE: DPC Clutch Pilot Assembly Bearings (Item 25) are
prelubricated, sealed, and do not require further
lubrication.
1. Disconnect the air supply line, and Hose Assemblies
at the Piston/Drive Disc Elbow Fittings.
NOTE: If the DPC Clutch is shaft end mounted, remove
the Rotary Air Union Cap (Item 30). On through
shaft installations, remove the Elbow Fittings (Item
17) from the shaft.
2. Loosen the Q.D. Bushing.
a. Remove Q.D. Bushing pull-up bolts and
lockwashers.
b. Insert the pull-up bolts into the tapped Q.D. Bushing
removal holes, and progressively tighten each one
until the Splined Hub (Item 1) is loose on the Q.D.
Bushing.
3. Wedge a screwdriver into the saw cut in the Q.D.
Bushing to loosen the Q.D. Bushing from the shaft,
then remove the DPC Clutch.
4. Remove the Cap Screws (Item 33), Lockwashers (Item
34), and Sheave (Item 32) if mounted to the DPC Clutch.
5. Remove Cap Screws (Item 28).
6. Remove Cap Screws (Item 21).
7. Remove the Pilot Assembly from the Element Clutch.
8. Remove Retaining Ring (Item 27) from the Pilot
Assembly.
9. Fully supporting the Pilot Housing (Item 32); press the
Hub Extension (Item 22) out of the Pilot Assembly.
24 25
22 26
FIGURE 11
32 27 25
28
1
21
34
33
23
PARTS REPLACEMENT (continued)
10. Remove Retaining Ring (Item 26).
11. Fully supporting the Pilot Housing (Item23); push out
the Bearings (Item 25), and Spacer (Item 24).
12. Clean bearing contact surfaces of the Pilot Housing
(Item 23), and the Hub Extension (Item 22) with fresh
safety solvent.
13. Press first new Bearing (Item 25) onto Hub Extension
(Item 22).
14. Install the Spacer (Item 24).
15. Press the second Bearing (Item 25) onto the Hub
Extension (Item22).
16. Install Retaining Ring (Item 27).
17. Fully supporting the inner races of the new bearings;
push the Hub Extension (Item 22), with Bearings (Item
25), and Spacer (Item 24) into the Pilot Housing (Item
23).
18. Install Retaining Ring (Item 26).
19. Reinstall DPC Clutch (See Installation section).
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.