Center Front Stabilizer Cylinder; Description; Maintenance - Manitowoc Grove TMS800E Service And Maintenance Manual

TMS800E SERVICE MANUAL
solenoid directional control valve that controls outrigger
extend and retract.
Outrigger Control Manifold
The front and rear outrigger control manifolds are located
inside the frame on the respective outrigger box. The rear
manifold consists of four 24 volt solenoid valves and an
assembly mounting kit. The front manifold consists of five 24
volt solenoid valves and an assembly mounting kit.
Center Front Stabilizer Circuit Relief Valve
The center front stabilizer circuit relief valve is mounted on
the front outrigger box next to the front outrigger control
manifold. The valve prevents over pressurization of the
center front stabilizer circuit.

CENTER FRONT STABILIZER CYLINDER

Description

The center front stabilizer cylinder has a 8.9 cm (3.5 in)
diameter bore and is the double acting type. The cylinder is
p i n n e d i n t o a t u b e w h i c h i s w e l d e d o n t o a s p e c i a l
crossmember on the front end of the carrier frame. A port
block is welded to the end of the cylinder rod and a pilot
operated check valve is threaded into the port block. Internal
seals are used within the cylinder to prevent internal and
external leakage. A wiper ring is mounted to the front of the
cylinder barrel to wipe dirt from the rod as it is retracted.
The cylinder weighs approximately 42.5 kg (93.6 lb) dry.

Maintenance

NOTE: Refer to Cylinders, page 2-54 for Disassembly and
Assembly of the cylinder.
See Figure 8-79 for cylinder installation.
Removal
1. Remove the bolts, washers, flatwashers, and nuts
securing the tilt plate. Remove the plate.
2. Remove the bolts, washers, locknuts, and bushings
securing the float pad to the cylinder ball and remove the
float pad.
GROVE
3. Remove the washers and nuts securing the cylinder
tube cap to the cylinder cap bracket.
4. Tag, disconnect, and cap the hydraulic lines to the
cylinder.
5. Place a jack capable of supporting the weight of the
stabilizer cylinder at the base of the cylinder barrel. Jack
up the cylinder just enough to relieve any pressure on
the cylinder retaining pin.
6. Remove the cotter pins securing the cylinder retaining
pin and remove the cylinder retaining pin and cylinder
cap bracket.
7. Jack the stabilizer cylinder up just enough to insert the
retaining pin back into the cylinder's lugs. Insert the
retaining pin into the lugs on the cylinder and secure in
place with the cotter pins.
Use a nylon strap to remove the cylinder. This will ensure
the retaining pin is not damaged.
8. Fasten a nylon strap onto the cylinder retaining pin and
use an adequate lifting device to lift the stabilizer
cylinder out of the tube.
9. Remove the wear ring from the groove of the cylinder.
Remove the wear ring from the groove in the bottom of
the tube.
Installation
1. Apply grease (EP-MPG) to the inside diameter of the
stabilizer cylinder support tube.
2. If removed, install wear ring in groove in bottom of
support tube and in groove at top on stabilizer cylinder.
3. Place a jack beneath the cylinder tube. Using the same
method as described under removal, lower the stabilizer
cylinder into the cylinder tube until the retaining pin is
just above the tube. Position the jack so that it will
support the cylinder in this position. Remove the lifting
device from the cylinder.
4. Remove the retaining pin and cotter pins from the
cylinder.
Published 01-29-2014, Control # 496-00
UNDERCARRIAGE
CAUTION
8
8-73