National Crane c
This Supplement provides information regarding the
Outrigger Monitoring System, which is standard equipment
on cranes sold in North America and optional equipment on
cranes sold outside of North America. The information
provided here supplements the Operator’s and Service
Manuals and must be used in conjunction with the
Operator’s and Service Manuals.
OUTRIGGER MONITORING SYSTEM (OMS)
(OPTIONAL—STANDARD IN NORTH
AMERICA)
Operation
The Outrigger Monitoring System (OMS) aids the operator in
ensuring that the crane is properly setup on outriggers and
stabilizers. The OMS utilizes one sensor in each outrigger
and one proximity switch in each horizontally extending
stabilizer to identify when the outriggers and stabilizer beams
are extended to a point in which they provide maximum
stability.
The OMS utilizes an LED indicator to communicate to the
operator the position of the outriggers and stabilizers. The
Outrigger Status Indicator (1, Figure 1) is a bi-color LED
located at each control station. When power is on and the
outrigger and stabilizer beams are extended to a point at
which they provide maximum stability (stabilizers beams
shall be fully extended on cranes equipped with Rear
Stabilizer Out and Down (RSOD)), the Outrigger Status
Indicator illuminates constant green, indicating a lift can be
made. If power is on and one or more outrigger or stabilizer
beams are not extended to a position which provides
maximum stability, the Outrigger Status Indicator flashes red,
indicating a lift should not be made. If the Outrigger Status
Indicator illuminates constant red, there is a fault in the OMS.
Reference Only
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