Nexen TL50A/4-E 803017 - Manual (Page 13)

13 FORM NO. L-21174-E-1209
O-RING
SEAL
BACK UP
RING SEAL
PRESSURE
SIDE
FIGURE 11
13. Supporting the inner race of the new Ball Bearing (Item
22), press the Drive Ring (Item 10) into the Cylinder
(Item 9) and new Ball Bearing.
14. Clean the O-rings and Back-Up Ring Seal grooves.
15. Lubricate the new O-ring Seals (Items 12 and 13),
Back-Up Ring Seals (Items 11 and 14), and seal contact
surfaces of the Piston (Item 8) and Cylinder (Item 9)
with a thin film of fresh o-ring lubricant.
NOTE: When installing new O-ring Seals (Items 12 and
13) and Back-Up Ring Seals (Items 11 and 14), make sure
the curved surface of the Back-Up Ring Seal matches
the curved surface of the O-ring Seal. The Back-Up Ring
Seals must be installed on the non-pressurized side of
the O-ring Seals.
16. Install new O-ring Seals (Items 11 and 14) and new
Back-Up Ring Seals (Items 11 and 14).
17. Press the Piston (Item 8) back into the Cylinder (Item
9).
Align this Ball
detent with Hub
key way.
3. Clean the bearing bore of the Drive Flange Assembly
(Item 19) with fresh solvent, making sure all old Loctite ®
residue is removed.
4. Apply an adequate amount of Loctite ® 680 to evenly
coat the outer race of the new Ball Bearings (Item 21)
and press the new Ball Bearings into the Drive Flange
Assembly (Item 19).
5. Reinstall Retaining Ring (Item 5). FIGURE 13
19
21
5
FIGURE 12
DRIVE FLANGE BALL BEARINGS
Refer to Figures 12 & 13.
1. Remove the Retaining Ring (Item 5) from the Drive
Flange (Item 19).
NOTE: The Drive Flange Assembly consists of: Machine
Screws, Ball Seat, Balls, and Drive Flange. If any of these
items show signs of wear or damage, the entire Drive
Flange Assembly (Item 19) must be replaced.
2. Fully support the Drive Flange Assembly (Item 19); then,
press the Ball Bearings (Item 21) out of Drive Flange
Assembly.
NOTE: Do not reuse the old Ball Bearings. Applying
force to the inner race to remove ball bearings held
by the outer race causes damage to the ball bearings.
WARNING
Special attention should be exercised
when working with retaining rings.
Always wear safety goggles when
working with spring or tension loaded
fasteners or devices.
CYLINDER/PISTON BALL BEARING AND O-RING SEALS (continued)