Liquiflo
Installation, Operation & Maintenance Manual
Poly-Guard
®
Series MAG-DRIVE Gear Pumps
Models P1 thru P9, Close-Coupled
18
7
Place the center housing (
12
) onto the rear housing (
9
).
NOTE:
Be certain the center housing seats
properly over the housing alignment pins.
Installation of Wear Plates
Standard Liquiflo wear plates are manufactured
with cut-outs or grooves to provide liquid relief
paths to reduce hydraulically-induced gear
separation forces that exist during pump
operation. These forces decrease pump life
by placing significant loads on the shafts and
bearings. To be effective, the relief grooves
must face toward the gears.
NOTE:
Failure to orient the wear plates
properly will reduce the operating life of
the pump.
8
Insert two wear plates (
8
) into the
center housing (
12
) with the relief
grooves facing up.
Installation of Gear-Shafts:
9
Insert the idler and drive gear-shaft assemblies into
the center-rear housing.
NOTE:
The drive shaft is located on the pump’s centerline. When the
pump is in its normal horizontal orientation, the idler gear will be above
the drive gear. Install the gear-shafts so that the Poly-Guard Series
tag on the rear housing will be upright when the pump is horizontal.
Relief Grooves
Center
Housing
Wear Plates with
Relief Grooves
facing up
Idler Gear-Shaft Assembly
Drive Gear-Shaft Assembly
Center Housing
Alignment Pin in
Rear Housing
