Stainless Steel Rotary Drum Pump
(P/N 272397)
Operating Instructions and Parts Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR WESCO ROTARY
PUMP, READ THESE INSTRUCTIONS BEFORE USING.
Part Breakdown
Parts
List
Item
Description Qty
1 Pump
Body
1
2 Rear
Cover
1
3 Front
Cover
1
4 Rotor
1
5 Vane
2
6 Spring
1
7 Spring
Rod
1
8 Lip
Seal
1
9 Discharge
Spout
1
10 Cap
Screw
10
11 O-Ring
2
12 Crank
Arm
1
13 Set
Screw
1
14 Handle
1
15 Handle
Shaft
1
16 Hex
Bridge
1
17 Bung
Adapter
1
18 Fixed
Nut
1
19 Fixed
Ring
1
20 Suction
Tube
1
Assembly and Installation
(1)
Check to see if all parts are included.
(2) Screw and discharge spout (Item 20) into pump body (Item 1) outlet using PTFE sealant tape provided. Do not use pipe
sealant.
(3) Screw handle assemble to crank arm (Item 12) using hex nut (Item 15) supplied. Keep handle shaft from turning. Tighten
hex nut against crank arm. Then insert crank arm assembly onto pump shaft, taking care to align set screw (Item 16) to
indent in rotor (Item 2).
(4) In order to avoid leakage, please use PTFE tape provided to seal three suction tubes (Item 19). Insert bung adapter
(Items 17) into section tube (Item 19) and thread suction tube into pump inlet.
(5) Insert pump and suction tube assembled with bung adapter into the drum, and then tighten bung adapter thumb screw
(Item 18) by hand. Be sure to set pump and suction tube assembly so that suction tube is at the desired depth in the
drum and is not blocked.
Operation
(1) To begin pumping fluid, rotate handle clockwise several times making complete revolutions until fluid begins to flow.
Several revolutions will be made with no fluid dispensed as pump needs to prime, once primed, fluid flow begins as
handle is rotated.
(2) For siphoning or draining fluid back into drum, place handle in the straight down position.
(3) To stop siphoning and maintain suction or prime, leave handle in horizontal position.
(4) If corrosion builds up in pump due to lack of use or fluid being pumped, adding penetrating oil into the pump inlet may
help free pump. Remove pump from application, add penetrating oil, let soak, and then crank several times.
(5) Regularly check pump and suction tubes for leaks. Leaks in the suction line or in pump housing will cause inefficient
pumping and loss of prime.
