Manitowoc 14000 Service And Maintenance Manual

Reference Only
Manitowoc Published 09-10-14, Control # 065-24 1-71
14000 SERVICE MANUAL INTRODUCTION
1
Crawler Pin Cylinders Retract
Move right crawler pin lever forward to retract crawler pin
pusher cylinder from crawler track frame. This shifts selected
lower accessory valve to block charge pressure to carbody
pressure sender. System pressure bleeds out through orifice
and system pressure drops, sending an input signal to node
1 controller.
Node 4 controller sends a variable 28 output voltage to drum
1 pump EDC that tilts pump swashplate to stroke pump in
low-pressure side direction. Hydraulic fluid flows through
upper accessory system valve to lower accessory valve
where system pressure is approximately 3,100 psi (215 bar).
Hydraulic fluid enters rod end of crawler pin cylinder,
retracting cylinder rod, releasing crawler track frame from
carbody. Hydraulic fluid exhausting from piston end of
crawler pin cylinder returns to lower accessory valve and is
returned to tank.
When control lever is moved back to neutral position, system
pressure beyond lower accessory valve increases, an input
signal to the node 1 controller. Node 4 controller sends a
zero output voltage to drum 1 pump EDC that returns pump
swashplate to neutral and de-strokes the pump.

Manitowoc 14000 Specifications

General

Brand	Manitowoc
Model	14000
Category	Construction Equipment
Language	English