Assembly And Disassembly
Single-Flushed Shaft Seal
Assembly
Note:
Lubricate all O-rings with food grade sili- 5.
cone grease or oil before assembly.
Mineral oil or grease will damage EPDM
rubber.
6.
Nitrile should be specified when Petrola- 7.
tum based lubricants are used on
O-rings
1. Fit compression rings (2a) and (2b) on stub
shaft (4). Fit screws (3) with heads away
from motor end.
8.
2. Fit stub shaft on motor shaft so that the dis
tance between end of shaft and motor
flange is 3/8" - 3/4".
9.
Fit back plate (21) on adapter (13), using
washers (17) and nuts (16) and tighten.
Screw impeller (33) fully onto stub shaft.
By knocking gently with a plastic hammer
on impeller
move,
stub shaft further onto
motor shaft until the distance between im
peller and back plate is 0.02". Check dis
tance with a feeler gauge or 0.02" foil.
Remove impeller and back plate and tigh
ten screws (3) firmly and evenly to 132 in
lbs (11 ft-lbs) using a torque wrench.
Mount O-ring (9) on stationary seal ring (8).
3. Tighten screws (3) evenly, but no more
than to allow the stub shaft to be moved on
the motor shaft by knocking it gently with a
plastic hammer.
10. Screw stationary seal ring into the back
plate (left hand thread) using the spanner
delivered with the pump, and tighten firmly.
4. Fit adapter (13) on the motor using bolts
(14) and washers (15).
13
CONTACT CSI FOR MORE INFORMATION | CSIDESIGNS.COM | [email protected] | 417.831.1411
