Manitowoc MLC165-1 Service Maintenance Manual

Reference Only
Manitowoc Published 05-26-17, Control # 238-02 8-9
MLC165-1 SERVICE/MAINTENANCE MANUAL UNDER CARRIAGE
8
8
Air Removal
See Figure 8-5 for the following procedure.
1. Rotate the valve (5) clockwise until finger tight.
2. Position the pump (4) so it is higher than the cylinder (1)
and position the cylinder so the rod is down.
3. Operate the jacking handle (6) up and down to fully
extend the jacking cylinder (1) rod.
4. Rotate the valve (5) counterclockwise, push the jacking
handle (6) all the way down, and fully retract the jacking
cylinder (1) rod to force oil and trapped air back into the
pump.
5. Repeat this procedure until the cylinder operates
smoothly. Erratic operation indicates air in the
system.
Operation
1. Before using the pump:
• Check that all fittings are tight and leak free.
• Check the oil level.
2. To pressurize the jacking cylinder (1) and extend the
rod, close the valve (5) by turning it clockwise until finger
tight. Pump the jacking handle (6) up and down.
Pressure is maintained until the valve is opened.
To reduce the handle effort at high pressure, use short
strokes, maximum leverage is obtained in last five
degrees of stroke.
3. To de-pressurize the jacking cylinder (1), push the
jacking handle down fully and the open the valve (5) by
turning it counterclockwise.
4. The pump can be operated in any position from
horizontal to vertical as long as the hose end of the
pump is down.

Manitowoc MLC165-1 Specifications

General

Brand	Manitowoc
Model	MLC165-1
Category	Construction Equipment
Language	English