Manitowoc 2250 Service And Maintenance Manual

Reference Only
HYDRAULIC AND AIR SYSTEMS 2250 SERVICE/MAINTENANCE MANUAL
2-16
Published 11-06-15, Control # 040-13
SHOP PROCEDURE
General
This section covers hydraulic adjustments for the hydraulic
system and related components on this crane.
Experienced technicians, trained in the operation of this
crane and its hydraulic system, shall perform the procedures
in this section. These technicians shall read, understand,
and comply with the instructions in this section.
All adjustments identified in this section were made to the
crane before it was shipped from the factory. Adjustments by
field personnel are required only when parts are replaced or
when instructed by the Manitowoc Crane Care Lattice Team.
Comply with the pressure and flow settings specified in this
section. Altering settings without the approval of the
Manitowoc Crane Care Lattice Team can damage crane
components or cause the crane to operate improperly.
Procedures for connecting hydraulic fittings are provided in
this section of manual.
During many of the procedures described in this section, it
will be necessary to monitor data on the diagnostic screens
of the digital display. See Diagnostic Display topic in Section
3 for description and operation of the diagnostic screens.
When a procedure states determine cause and correct,
proceed as follows:
• MCC Assembly Personnel — contact the Engineering
Department.
• Field Service Personnel — contact the Manitowoc
Crane Care Lattice Team.
FIGURE 2-18
Pump Identification
Pump Port Identification
Item
Description
1 Boom Hoist Pump
2 Load Drum Pumps
3 Swing Pump
4 Right Crawler Pump
5 Left Crawler Pump
6
Fan (outboard) and Accessory
(inboard) Pump
7 Pump Drive
Pump Port A Port B
1 Lower Hoist
2 Hoist Lower
3 Left Right
4, 5 Reverse Forward
A1064
Access at Left Rear Outboard Side
of Rotating Bed
P916
2
7
4
1
6
5
3
Pump Components
Item
Description
A System Pressure Port A
B System Pressure Port B
1 Multifunction Valve (Port A)
2 Charge Pressure Gauge Port
3 Multifunction Valve (Port B)
4 Charge Pressure Relief Valve
5 Neutral Adjusting Screw
6
Electronic Displacement
Control (EDC)
7 Manual Override Knob
5
7
6
P966
P967
4
3 2 1
A
B

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English