Manitowoc 2250 Service Maintenance Manual

Reference Only
Manitowoc Published 07-19-16, Control # 249-01 8-5
2250 SERVICE/MAINTENANCE MANUAL UNDERCARRIAGE
8
Operating the Pump
See Figure 8-4 for the following procedure.
1. Before using the pump, perform the following.
a. Verify that all fittings are tight and leak free.
b. Verify that the oil is at the proper level.
2. To pressurize the cylinder and extend the cylinder rod,
close the valve by turning it clockwise until finger tight
only. Then pump the handle up and down to build
pressure in the cylinder. The pressure will be maintained
until the valve is opened.
Make short strokes to reduce the amount of force
required to pump the handle at high pressure. Maximum
leverage is obtained in the last five degrees of the
stroke.
3. To depressurize the cylinder, push the handle down fully
and open the valve by turning it counterclockwise.
NOTE: The pump can be operated in any position from
horizontal to vertical as long as the hose end of the
pump is pointing down.
Level Mark on
Dipstick
(Enerpac pump)
FIGURE 8-4
Filler Plug
(Enerpac pump)
Close
Valve
Open
Valve
Extend
Cylinder
Retract
Cylinder
Cylinder
Hose
Air Release Screw
(Simplex pump)
OR
Pump
S135
S137
S138

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English