Gorman-Rupp Pumps 02C3-X2 3P 390873 and up - Manual (Page 24)

OM-01098 0 SERIES
MAINTENANCE & REPAIR PAGE E - 6
SEAL PLATE
IMPELLER
SHAFT
STATIONARY
SEAT
ROTATING
ELEMENT
DRIVE BAND
BELLOWS
IMPELLER
SHIMS
IMPELLER
SPRING
RETAINER
STATIONARY
ELEMENT
SPRING
RETAINER
Figure 2. Seal Assembly
This seal is not designed for operation at
temperatures above 160
_F (71_C). Do not
use at higher operating temperatures.
Lay the intermediate (9) on a flat surface with the
impeller side facing up. Subassemble the station­
ary element into the stationary seat and use even
pressure to press this subassembly into the inter­
mediate until it seats squarely against the shoulder
bore.
Carefully slide the assembled intermediate and
stationary portion of the seal over the motor shaft.
Secure the intermediate to the motor with the hard­
ware (11 and 12).
Subassemble the rotating element into the retainer
and bellows. Lubricate the I.D. of the bellows with
water and slide this subassembly onto the shaft
until the polished faces contact. Install the seal
spring and spring retainer.
Impeller Installation
Inspect the impeller and replace it if cracked or
badly worn.
For maximum pump efficiency, the impeller should
be centered within the vane plate scroll.
To verify the impeller positioning, measure the
vane plate and impeller as shown in Figure 3. Use
these measurements to calculate the required im­
peller location (dimension E). Add or remove im­
peller adjusting shims (17) until dimension E is ob­
tained.