Manitowoc 14000 Service Maintenance Manual

Reference Only
INTRODUCTION 14000 SERVICE MANUAL
1-22
Published 09-05-14, Control # 226-02
Pressure Senders and Speed Sensors
Pressure senders monitor drum system pressures, right/left
travel system pressure, swing right/left system pressure,
accessory system pressure, and lower accessory valve
pressure. Remote node controllers receive a 0 to 5 volt input
signal for each system pressure sender. Pressure senders
transmit drum holding pressure information to node 1
controller.
Drum speed sensors detect speed in rpm and direction of
drum movement. Node 1 controller receives this information
as two out-of-phase square wave voltages that are
converted to counts. Node 1 controller compares control
handle voltage with pump output to determine when to vary
pump stroke.
System Faults
See Section 3 of this manual for list of faults.
Node 1 controller monitors and enables an alarm if any
system fault is detected and displays the fault on the crane
information screen.
When operating, all limit switches are closed, sending an
input voltage to node 1 controller. If a limit switch is tripped,
system node controller sends a zero output voltage to that
system pump EDC and brake solenoid. System pump de-
strokes and system brake applies. Move control in opposite
direction away from limit to correct the problem.
Limit bypass switch allows crane to be operated beyond the
limits for crane setup or maintenance only. For example, to
add wire rope on load drum or to remove wire rope from load
drum after an operating limit is enabled. The jib up limit
bypass switch allows the jib maximum up limit to be
bypassed when boom or luffing jib is lowered to ground.

Manitowoc 14000 Specifications

General

Brand	Manitowoc
Model	14000
Category	Construction Equipment
Language	English