Gorman-Rupp Pumps 02K52-B 1255789 and up User Manual
Page 27
0 SERIES
OM-01163
MAINTENANCE & REPAIR
PAGE E - 8
D
B
2
A
B
2
C
D
E
Step 2
Step 1
Step 3
A+
B
2
C+
D
2
E
=
-
Figure 3. Centering Impeller Within Vane Plate Scroll
Install the correct thickness of impeller shims.
Screw the impeller onto the shaft until fully seated.
Make sure the seal spring seats squarely over the
shoulder on the back of the impeller.
Apply “Loctite Threadlocker No. 242” or equivalent
compound to the impeller shaft threads and se
cure the impeller with the impeller nut (28). Torque
the nut to 30 ft. lbs. (360 in lbs. or 4,15 m. kg.).
Clean all of the old adhesive from the vane plate
and its mating surface on the intermediate. Apply a
thin film of “3M Gasket Adhesive No. 847” or equiv
alent compound to the vane plate and secure the
vane plate to the intermediate bracket using the
hardware (5 and 6). Assemble the shorter machine
screw (5) at the 11 o'clock position on the vane
plate.
NOTE
After the vane plate has been installed, check for
free shaft rotation. Correct any scraping binding
before further reassembly.
Pump Reassembly
Install the vane plate O‐ring (29) onto the vane
plate. Install the casing gasket (22). Ease the pump
housing over the vane plate. Be careful not to
damage the O‐ring. Secure the housing to the in
termediate bracket with the nuts (8).
Final Pump Assembly
Install the suction and discharge lines and open all
valves. Make certain that all piping connections are
tight, properly supported and secure.
Fill the pump casing with clean liquid. Reinstall the
fill plug (4) and tighten it.
Refer to OPERATION, Section C, before putting
the pump back into service.
LUBRICATION
Seal Assembly
The seal assembly is lubricated by the medium be
ing pumped and no additional lubrication is re
quired.
Bearings
The bearings in this pump are lubricated from the
manufacturer and permanently sealed. No addi
tional lubrication is required.
Power Source
Consult the literature supplied with the power
source, or contact your local representative.