3 Product Description
3.1 General
This instruction manual is intended to assist those involved with the installation, operation and mainte-
nance of Gould’s pumps. It is recommended that this manual be thoroughly reviewed prior to installing or
performing any work on the pump or motor.
The design, material and workmanship incorporated into the construction of Gould’s pumps makes them
capable of giving long, trouble-free service. The life and satisfactory service of any mechanical unit, how-
ever, are enhanced and extended by periodic inspection and careful maintenance. Keep this instruction
manual handy for reference. Further information can be obtained by contacting Gould’s Pumps, Ashland
Operations, East Centre St., Ashland, PA 17921 or your local representative.
Gould’s Pumps will not be liable for any damages or delay caused by failure to comply with the provi-
sions of this instruction manual. This pump is not to be operated at speeds, working pressures, dis-
charge pressures, or temperatures, nor used on liquids other than stated in the original order acknowl-
edgment without written permission of Gould’s Pumps.
3.1.1 Pump Description
The AF pump generates flow by the thrust or lift action of the rotating axial vanes of the impeller. It pro-
vides high flow rates and low heads which are ideal for re-circulation, evaporator, and generator cooling
systems. The AF utilizes an elbow to direct the flow through the suction and out the discharge end of the
pump. The pump accommodates top or end suction configurations using either the LMR or LM bearing
arrangement. The LMR is for top suction and the LM is for end suction. Arrangements are as follows:
Table 2: Pump Description
Power End
Inboard Bearing
Outboard Bearing
LMR
Spherical roller
Spherical thrust/spacer/Spherical roll-
er
LM
Spherical roller
Spherical roller/spacer/Spherical
thrust
Elbow
AF elbows are fabricated with 150# flat face suction and discharge flanges. They come with fabricated
feet for mounting to a sub-base or without feet to be mounted directly in the piping. The elbows have a
built in stuffing box and a rear flange for mounting the power end to the elbow. There are also adjusting
lugs for aligning the shaft to the stuffing box.
Casing
The AF comes with a casing or spool piece to simplify impeller installation and alignment. The casing
bolts to the elbow and shrouds the impeller.It has a gasket or o-ring seal between it and the elbow.Ad-
justing lugs on the elbow center the casing relative to the impeller.
Power End
The power end is made up of the bearing housing, bearings, locknuts, lock washers, labyrinth oil seals,
shaft, shaft sleeve (w/packing), oil slinger, keys, shaft, and shaft washer.
Stuffing Box
The stuffing box is integral with the elbow and provides a mounting surface for a mechanical seal or cy-
lindrical bore with flush ports and gland face for packing. The standard packed box includes (5) rings of
3 Product Description
12
Model AF (42"/1200mm/54"/60"/66") LM/LMR Bearings Installation, Operation, and Maintenance Manual
