Published 08-25-09, Control # 077-04 2-91
RT9130E SERVICE MANUAL HYDRAULIC SYSTEM
1. Install the replacement wiper ring and rod seal into the
inside of the head.
2. Install the o-ring, backup ring and wire wrap on the
outside of the head.
3. Install the o-ring in the inside of the piston.
4. Lubricate the rod with clean hydraulic oil.
5. Install the head onto the rod. Torque to 271.1 ± 27.1 Nm
(200 ± 20 pounds-foot).
6. Install the piston onto the rod. Secure the piston with the
nut. Lubricate the threads and torque the nut to 332.1 ±
20.3 Nm (245 ± 15 pounds-foot).
7. Install the seal and wear rings on the outside of the
piston.
8. Lubricate all parts freely with clean hydraulic oil.
9. Apply 1/8 bead of Loctite thread adhesive #277 or
equivalent across the length of the threads on the rod
end side of the rod. Install the rod end on the rod and
torque 508.4 to 610.1 Nm (375 to 450 pounds-foot).
10. Remove the cover from the barrel. Insert the rod and
attached parts into the barrel with a slight twisting
motion.
11. Pressurize and cycle the cylinder with hydraulic oil
pressure. Static pressure test the cylinder at 15,513 kPa/
15.5 bar (2250 psi). Check for proper operation and any
leakage. Make repairs as needed.
CAUTION
Exercise extreme care when handling the rod. Damage to
the rod surface may cause unnecessary maintenance
and expense. Also, take care to avoid damaging grooved
or gland surfaces or rings or seals during rod insertion.
CAUTION
Do not use air pressure to cycle or pressurize the cylinder.
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