SkyTrak 8042 Service Manual User Manual
Page 537
Hydraulic System
8.122
Model 8042, 10042, 10054 Legacy
Rev. 10/03
4. Install the deep Z-seal with rod back-up (13) in the
head gland (4) orienting the edge (19).
5. Carefully install the head gland (4) onto the rod (3).
6. Carefully install the piston (5) onto the rod (3).
Note: If a white, powdery residue remains on the
threads and parts, clean the residue away with a soft
brass wire brush prior to reassembly, and wipe with
Loctite “T” cleaner before proceeding.
7. Apply Loctite Threadlocker #271 (red) to the locknut
(12). Thread the locknut onto the rod (3) and torque
to 900-1050 lb-ft (1220-1424 Nm). The threads will
deform upon tightening, locking the nut in place.
8. Install the capped T-seal (11) and precision
wearbands (10) onto the piston (5).
Note: The T-seal actually consists of four components; a
wide, flexible inner band, the flexible T-seal band itself,
and two supportive split caps that mount on either side of
the “T” itself.
9. Install new oiled o-ring (9), back-up ring (8) and oiled
o-ring (6) onto the head gland (4).
10. Install new locking inserts (7) into the head gland.
IMPORTANT: When sliding the rod and piston assembly
into the tube, prevent the threaded end of the tube from
damaging the piston (5). Keep the rod centered within
the tube to help prevent binding. Protect the finish on the
rod at all times. Damage to the surface of the rod can
cause seal failure.
11. Carefully insert the rod (3) with all attachments
straight into the tube (2).
12. Using a pin spanner wrench, thread the head gland
(4) into the tube (2). Torque the head gland to 300-
400 lb-ft (407-542 Nm).
f.
Slave Cylinder Installation
1. Align the slave cylinder with its mounting bosses
within the rear frame uprights.
2. Align the mount pin bolt holes with the slave cylinder
mount holes. Align the self-aligning bearing. Secure
the slave cylinder with the cylinder pins, capscrews
and nuts. Torque the capscrews and nuts to
specification. Refer to the fastener torque chart in
Section 2.3, “Torques.”
MH2871
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