Manitowoc Grove RT9130E-2 Service And Maintenance Manual

2-88 Published 11-22-2016, Control # 345-12
HYDRAULIC SYSTEM RT9130E-2 SERVICE MANUAL
5. Install the replacement wear rings and seal on the
outside of the piston.
6. Lubricate all parts freely 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. Push the head into the barrel.
9. Using a chain wrench, screw the head into the barrel.
Tighten the head’s setscrew.
10. Pressurize and cycle the cylinder with hydraulic oil
pressure. Static pressure test the cylinder at 3000 psi
(20684 kPa). Check for proper operation and any
leakage. Make repairs as needed.
OUTRIGGER STABILIZER CYLINDER
Description
The four outrigger stabilizer cylinders each have a hollow rod
for internal porting Figure 2-53. Each cylinder has a 6.5 in
(165.1 mm) diameter bore. A port block is welded to the rod
of each cylinder and a pilot operated check valve is threaded
into each port block.
The retracted length of the cylinder from the end of the barrel
to the center of the rod’s port block rod bushing is 55.75 in
(1416 mm). The extended length of the cylinder from the end
of the barrel to the center of the rod’s port block rod bushing
is 88 in (2235.2 mm). Its stroke is 32.25 in (819.2 mm).
A wiper ring prevents foreign material from entering the
cylinder. O-rings and other seals prevent internal and
external leakage.
The cylinder weighs approximately 220.4 lb (100 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. Remove the check valve from the port block.
2. Loosen the head’s setscrew. Using a chain wrench,
unscrew the head from the barrel.
3. Remove the rod and attached parts from the barrel.
NOTE: Cover the barrel opening to avoid contamination.
4. Remove a hydrolock seal from the outside of the piston
to gain access to the set screw.
NOTE: Arranging discarded seals and rings in the order of
disassembly will aid in installation of new seals and
rings. Pay attention to how each seal and ring is
installed to avoid installing replacement seals and
rings improperly.
5. Remove the piston’s set screw. Unscrew the piston from
the rod.
6. Remove the other hydrolock seal from the outside of the
piston.
7. Remove the O-ring and the two backup rings from the
inside of the piston.
8. Remove the spacer from the rod.
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.
CAUTION
Possible Equipment Damage!
When removing seals and rings, avoid scratching the
grooved and gland surfaces.

Manitowoc Grove RT9130E-2 Specifications

General

Brand	Manitowoc
Model	Grove RT9130E-2
Category	Construction Equipment
Language	English