Manitowoc Grove RT880E User Manual

UNDERCARRIAGE RT880E SERVICE MANUAL
8-36 Published 11-10-2014, Control # 524-00
3. Check the hydraulic connections for any evidence of
leakage.
Outrigger Monitoring System (Optional—
Standard in North America)
Description
The Outrigger Monitoring System (OMS) aids the operator in
accurately programming the Rated Capacity Limiter (RCL)
by automatically identifying the position of each outrigger
beam. The OMS uses four sensors, one per outrigger beam,
to identify when an outrigger beam is positioned to one of
three pre-defined locations, including fully retracted, mid-
extend, and fully extended.
Removal
1. Extend the outrigger beam slightly for improved access
and shut down the engine.
2. Remove the outer access cover plate from outrigger
box.
3. Remove the OMS string potentiometer connector (1,
Figure 8-35) from the attaching point on the outrigger
beam.
NOTE: Avoid free-release of cable to prevent damage to
OMS string potentiometer.
4. Disconnect electrical harness connector and secure to
avoid damage.
5. Loosen top mounting hardware enough to disengage
OMS string potentiometer from the slotted top mounting
hole.
6. Completely remove the lower mounting hardware.
7. Remove OMS string potentiometer from inside outrigger
beam.
Installation
1. Install string potentiometer inside outrigger beam.
2. Install the OMS string potentiometer enough to engage
slotted hole with top mounting hardware.
3. Install the lower mounting hardware.
4. Attach the OMS string potentiometer connector to the
attaching point on the outrigger beam.
NOTE: Avoid free-release of cable to prevent damage to
the OMS string potentiometer.
5. Connect electrical harness connector to string potenti-
ometer.
6. Install access cover plate to outrigger box.
Jack Cylinder
Description
Four jack cylinders are used on the crane, one at the end of
each outrigger beam. The jack cylinders provide the force for
the outrigger beam’s vertical movement. The cylinder weighs
approximately 229 lb (104 kg).
Maintenance
NOTE: Refer to Outrigger jack Cylinder, page 2-94 for dis-
assembly and assembly of the cylinders.
Removal
1. Extend the outrigger beam slightly for improved access
to the jack cylinder; shut down the engine.
2. Tag and disconnect the hydraulic hoses from the jack
cylinder. Remove the fittings from the ports. Cap or plug
all openings.
FIGURE 8-35
1
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Manitowoc Grove RT880E Specifications

General

Brand	Manitowoc
Model	Grove RT880E
Category	Construction Equipment
Language	English