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Some spring return cylinders or rams have a cavity in the rod which forms an air pocket. This type of
cylinder or ram should be bled when positioned upside down or lying on its side with the port facing
upward.
1. OPERATING THE PUMP FOR THE FIRST TIME:
A.
Valve and hose connections must be tight, and the reservoir must be filled to the proper fluid level. Start
the motor.
B.
Jog the pump several times to build pressure.
C. Run cylinder out to its full travel several times to eliminate air from the system. For more complete
instructions, refer to the section titled "Bleeding The System" under Set-up Instructions.
D. With the cylinder(s) retracted completely, check the fluid level in the reservoir and add fluid if neces-
sary. Refer to "Filling The Pump Reservoir" under Set-up Instructions.
E.
The pump is now ready to be put into regular operation.
When lifting or lowering a load, the load must be under operator control at all times and others must be
clear of the load. Use blocking and cribbing to guard against a falling load. Do not drop the load. The
use of a load lowering or metering valve is recommended in addition to the pump directional control
valve.
© 2014 SPX CORPORATION
IMPORTANT
System with a
single acting
cylinder
PUMP OPERATION
DANGER
8
System with a
double-acting
cylinder
Form No. 1000862
Rev. 0 December, 2014
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