Manitowoc Grove TMS9000-2 Series, Руководство по обслуживанию

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Grove
Published 01-14-2021 Control # 707-01
8-93
TMS9000-2 SERVICE MANUAL CARRIER
8
5. Remove the cotter pins securing the cylinder retaining
pin and remove the cylinder retaining pin.
6. Jack the jack cylinder up just enough to insert the
retaining pin back into the cylinder. Insert the retaining
pin into the lugs on the cylinder and secure in place with
the cotter pins.
7. Fasten a nylon strap onto the cylinder retaining pin and
use an adequate lifting device to lift the jack cylinder out
of the tube on the beam assembly.
Installation
1. Place a jack beneath the cylinder tube on the outrigger
beam. Using the same method as described under
REMOVAL, lower the jack cylinder into the cylinder tube
on the outrigger beam 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.
2. Remove the retaining pin and cotter pins from the
cylinder.
3. Lower the jack until the holes in the cylinder rod align
with the holes in the outrigger beam. Secure the cylinder
in place with the retaining pin and cotter pins.
4. Install the cylinder cap.
5. Connect the hydraulic hoses to the jack cylinder as
marked during disassembly.
Functional Check
1. Activate the hydraulic system.
2. Extend and retract the jack cylinder.
3. Check for smooth operation of the cylinder.
4. Check all hydraulic connections and hoses for evidence
of leakage.
CENTER FRONT JACK CYLINDER
Description
The center front jack cylinder (Figure 8-87) has a 8.9 cm (3.5
in) diameter bore and is the double acting type. The cylinder
is pinned into a tube which is welded onto a special cross
member 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 (113.8 lb).
Maintenance
NOTE: Refer to
Cylinders
, page 2-29 for Disassembly and
Assembly of the cylinder.
Removal
1. Remove the screws, washers, flatwashers, and hex nuts
securing the plate. Remove plate.
2. Remove the bolts, lockwashers, bushing, and nuts
securing the float pad to the cylinder ball and remove the
float pad.
3. Remove the washers and nuts securing the cylinder
cap.
4. Tag, disconnect, and cap the hydraulic lines to the
cylinder.
5. Place a jack capable of supporting the weight of the jack
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 retaining bracket.
7. Jack the jack cylinder up just enough to insert the
retaining pin back into the cylinder. Insert the retaining
pin into the lugs on the cylinder and secure in place with
the cotter pins.
8. Fasten a nylon strap onto the cylinder retaining pin and
use an adequate lifting device to lift the jack cylinder out
of the tube.
CAUTION
Damage Could Occur!
Use a nylon strap to remove the cylinder. this will ensure
the retaining pin is not damaged.
CAUTION
Damage Could Occur!
Be sure that the piston side of all outrigger cylinders are
connected to the solenoid valve bank. Reversal of port
connection of the rod and piston sides cold result in
severe damage to the cylinders as very high pressure
intensification will occur.
CAUTION
Damage Could Occur!
Use a nylon strap to remove the cylinder. This will ensure
the retaining pin is not damaged.
Fo
r
Reference
Only