2-82 Published 11-22-2016, Control # 345-12
HYDRAULIC SYSTEM RT9130E-2 SERVICE MANUAL
4. Install the replacement seal and wear ring on the outside
of the piston.
5. Slide the head onto the rod.
6. Lubricate freely all parts with clean hydraulic oil.
7. Remove the cover from the barrel. Insert the rod and
attached parts into the barrel with a slight twisting
motion.
8. Clean all oil from the threads of the head. Coat the
threads with an anti-seize compound (ex: Never-Seez
paste lubricant or similar lubricant). Screw the head into
place on the barrel tightly so it holds the head’s larger
OD end flush with the end of the barrel.
9. Pressurize and cycle the cylinder with hydraulic oil
pressure. Test the cylinder at 3750 psi (25855.3 kPa).
Check for proper operation and any leakage. Make
repairs as needed.
STEER CYLINDER
Description
The steer cylinders Figure 2-51 are mounted on the axles,
two cylinders on each axle.
The front and rear steer cylinders each have 3.5 in (8.89 cm)
diameter bores. The front and rear steer cylinders each have
a retracted length of 28 in (711.2 mm) from bushing center to
bushing center. The front and rear steer cylinders each have
an extended length of 42.25 in (1073.2 mm) from bushing
center to bushing center. Each cylinder has a stroke of 14.25
in (362 mm).
A wiper ring prevents foreign material from entering each
cylinder. O-rings and other seals prevent internal and
external leakage.
The cylinder weighs approximately 40 lb (20 kg).
Maintenance
Disassembly
NOTE: Any maintenance requiring disassembly of the
cylinders should include replacement of all seals
and rings. A seal kit will supply the required items.
1. Extend the rod until the piston is approximately 4 in (10.2
cm) from fully extended.
2. Using a spanner wrench or chain wrench, unscrew the
head from the cylinder barrel.
3. Remove rod and attached parts from the barrel.
NOTE: Cover the barrel opening to avoid contamination.
CAUTION
Possible Equipment Damage!
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
Flying Parts Hazard!
Use only a source of controlled hydraulic oil pressure to
cycle or pressurize the cylinder.
Parts can fly from the cylinder at dangerous speeds when
using air pressure.
CAUTION
Flying Parts Hazard!
Do not use air pressure to remove the rod. Use only a
source of controlled hydraulic oil pressure if the rod is
hard to move.
Parts can fly from the cylinder at dangerous speeds when
using air pressure.
CAUTION
Possible Equipment Damage!
Exercise extreme care when handling or setting down the
rod. Damage to the rod surface may cause unnecessary
maintenance and expense.
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