SkyTrak 8042 Service Manual - Manual (Page 588)

8.173 Model 8042, 10042, 10054 Legacy Rev. 10/03
Hydraulic System
IMPORTANT: When sliding the rod and piston assembly
in the tube, prevent the threaded end of the tube from
damaging the piston seal (14). Keep the rod centered
within the tube to help prevent binding.
13. Carefully insert the rod (11) with all attachments
straight into the tube (17). Using a pin spanner
wrench, begin to thread the head gland into the tube.
Install new locking inserts (18) into the head gland.
Continue to thread the head gland into the tube and
torque to 300-400 lb-ft (407-542 Nm). Remove the
compression tool.
14. Install new oiled o-rings and back-up rings on the
pilot check valves (19). Lubricate the valve and rings
with clean, filtered hydraulic oil. Install and torque to
30-35 lb-ft (41-47 Nm).
15. If necessary, install both grease fittings (20) into their
threaded holes in the cylinder tube eyelet.
16. Test the side tilt cylinder at low operating pressure
(100 psi or 6,9 bar). Verify that the piston and rod
move freely in both directions.
17. Increase the operating pressure to the maximum for
the cylinder (1750 psi or 120 bar). Verify that the
piston and rod move freely in both directions.
18. Retract the piston fully and cap the hydraulic hose
ports. Install the cylinder on the carriage. Lubricate
the self-aligning bearing (1) via the grease fittings
(20) with multi-purpose grease before operating the
side tilt carriage on the vehicle.