8-31
RT765E-2 SERVICE MANUAL UNDERCARRIAGE
Published 9-04-2014, Control # 422-08
Inspection
Inspect the outrigger beams for bends, evidence of cracks,
or other damage. Check the outrigger beam internally for
hydraulic fluid, which may indicate a leaking cylinder, loose
connection, or damaged hydraulic line.
Installation
1. Apply grease (EP-MPG) to the bottom of the outrigger
beam.
2. If removed, install the side adjustable wear pad in the
outrigger beam.
3. Install the bottom wear pads with approximately 0.125 in
(3.2 mm) protruding. This will prevent the beam side
plates from riding on the bottom of the box.
4. Attach a suitable lifting device of straps or belts instead
of chains to prevent nicking the bottom edges of the
outrigger beam.
5. Slide the beam into the outrigger housing and align the
cylinder bushing with the mounting hole.
6. Apply anti-seeze compound to the clevis pin. Secure the
cylinder barrel to the housing with the clevis pin and
cotter pin.
7. Attach the OMS string potentiometer cable (if equipped)
to the attaching point on the outrigger beam.
If the OMS string potentiometer was removed, install the
potentiometer at this time. Refer to Outrigger Monitoring
System (Optional—Standard in North America), page 8-
34.
NOTE: Avoid free-release of cable to prevent damage to
OMS string potentiometer caused by over-range of
cable.
8. Connect the hydraulic lines as tagged prior to removal.
9. Install the side adjustable wear pad in the outrigger box.
10. Adjust the wear pads, refer to Wear Pad Adjustment in
this Section.
11. Install the end cover.
NOTE: At installation, be sure that the outrigger jack
cylinder hydraulic hoses are not trapped against
the outrigger box when the beam is fully retracted.
Wear Pad Adjustment
NOTE: When adjusting wear pads, refer to Figure 8-31.
1. Adjust the bottom wear pads (approximately 1/4 turn)
until a gap of 0.06 in (1.5 mm) is obtained between the
top of the beam and the top of the outrigger box. Install
and lock set screw against wear pad.
2. Adjust outrigger box side wear pad until a gap of 0.06 in
(1.5 mm) is obtained between beam and shims welded
in top and bottom of box. Install and lock set screw
against wear pad.
3. Adjust outrigger beam side wear pad until a gap of
0.06 in (1.5 mm) is obtained between shim welded on
beam and side of box. install and lock set screw against
wear pad.
CAUTION
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 could result in
severe damage to the cylinders as very high pressure
intensification will occur.
During initial start-up and checking of the outrigger
operation, each control switch must be operated before
operating the selector valve. If hydraulic lines are
reversed to one or more cylinders, this will prevent
damage to the cylinders.
Reference Only
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