Manitowoc 2250 Service And Maintenance Manual

Reference Only
INTRODUCTION 2250 SERVICE/MAINTENANCE MANUAL
1-68
Published 11-06-15, Control # 040-13
Rigging Winch
See Figure 1-37 and Figure 1-40 for the following procedure.
The optional rigging winch is located in the boom butt.
Power is available to setup remote control when the cable is
connected at air valve junction box on left side of rotating bed
and engine is running.
Rigging Winch Pay Out
When power button is pressed and rigging winch switch is
held in the up pay out position, an input signal is sent to the
PC. The PC sends a 12 volt output signal to auxiliary system
disable relief valve HS-12 that adjust system pressure to
3,500 psi (241 bar).
Hydraulic fluid enters upper accessory valve and flows
through variable output control valve HS-20 and hydraulic
quick disconnect to lower accessory valve.
Rigging winch pay out solenoid valve HS-18 is enabled by
the PC to shift the valve in the selected position. Hydraulic
fluid leaves the accessory valve and enters pay out side of
winch motor to turn the drum to pay out wire rope at a fixed
speed. Return hydraulic fluid from motor leaves accessory
system valve and returns to tank.
When power button or rigging winch switch is released, the
PC sends a 0 volt output to shift spool of solenoid HS-18 to
center position.
Rigging Winch Haul In
When power button is pressed and rigging winch switch is
held in the down haul in position, an input signal is sent to
the PC. The PC sends a 12 volt output signal to auxiliary
system disable relief valve HS-12 that adjust system
pressure to 3,500 psi (241 bar).
Hydraulic fluid enters upper accessory valve and flows
through variable output control valve HS-20 and hydraulic
quick disconnect to lower accessory valve.
Rigging winch haul in solenoid valve HS-17 is enabled by the
PC to shift the valve in the selected position. Hydraulic fluid
leaves the accessory valve and enters haul in side of winch
motor to turn the drum to haul in wire rope at a fixed speed.
Return hydraulic fluid from motor leaves accessory system
valve and returns to tank.
When power button or rigging winch switch is released, the
PC sends a 0 volt output to shift spool of solenoid HS-17 to
center position.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English