User's Manual

MAINTENANCE (continued) PAGE 17
7. PUMP ASSEMBLY (continued)
Sleeves Secured With Loctite Only: Clean the shaft, the bore of the sleeves and the bore of the
impeller with Loctite “Safety Solvent #75559.
Install the impeller key in the shaft and coat the impeller area on the shaft with Loctite 601. Press the
impeller onto the shaft, centering it between the shoulders as shown in Figure 5.
Coat the shaft on the shaft/sleeve fit and the bore of the sleeves with Loctite 601. Slide the sleeves
part way onto the shaft and rotate them at least one full revolution to evenly spread the Loctite, then
slide the sleeves over the shaft until they butt firmly against the impeller hub. Check the sleeve location
again and let the Loctite cure for 8 hours before completing the pump assembly.
Sleeves Installed With O-rings: Slide the shaft sleeves over the shaft until they engage the key and
butt firmly against the impeller hub. Install the O-rings in the outboard shaft sleeve nut end of the
sleeve and tighten the shaft sleeve nuts and setscrews.
CAUTION: THE LINEAR POSITION OF THE IMPELLER MUST BE OBTAINED AND THE SHAFT
SLEEVES MUST BE PROPERLY LOCATED. REFER TO FIGURE 5 ON THE
PREVIOUS PAGE OF THIS MANUAL. IF PROVIDED, THE SHAFT SLEEVE NUST
MUST BE TIGHTENED WITHIN 10 MINUTES AFTER THE LOCTITE IS APPLIED. TO
ACCOMPLISH LINEAR POSITIONING OF THE IMPELLER, LEAVE AN EQUAL
AMOUNT OF SHAFT OR SHAFT THREADS EXPOSED ON EACH END OF THE SHAFT
AFTER ASSEMBLY IS COMPLETED. ALLOW 4 HOURS FOR THE LOCTITE TO CURE
BEFORE COMPLETING THE PUMP ASSEMBLY.
CAUTION: THIS PUMP MAY BE SUPPLIED IN SEVERAL DIFFERENT CONFIGURATIONS. EACH
USES DIFFERENT BEARING COVERS AND HOUSINGS WITH DIFFERENT DRAWING
REFERENCE NUMBERS. DESPITE THE FOLLOWING INSTRUCTIONS, ALWAYS
REFER TO THE SECTIONAL DRAWINGS CONTAINED IN THIS MANUAL BEFORE
PROCEEDING, TO INSURE THAT YOU HAVE INSTALLED ALL REQUIRED LIP
SEALS, O-RINGS, ETC.
E. If your pump is oil lubricated, install the lip seals (159C) in the outboard and inboard bearing covers
(B159) and the lip seal and the lip seal (158C) in the inboard bearing housing (C158). Assemble the
O-rings (159A) on the bearing housing covers prior to installing the bearings.
F. If your pump is equipped with mechanical seals or solid packing glands, install the seals (456) and
mechanical seal glands (B31) or solid packing glands before proceeding. Refer to the seal
manufacturer’s instructions for installation.
G. Install the water slingers (126) on each end of the shaft.
H. Install the outboard and inboard bearing covers (A159 or B159) on the shaft.
I. Install the outboard (168) and inboard bearings (163).
WARNING: TO PREVENT POSSIBLE SERIOUS PERSONAL INJURY AND DAMAGE TO THE
BEARINGS, PRESSURE SHOULD BE APPLIED TO THE INNER BEARING RACE
ONLY.
Note: The pump is designed to have a .000 to .001 interference fit between the bearings and
the shaft.
J. Install the snap ring (345) on the outboard end of the shaft. Pack both bearings approximately one-
half full of lithium base NGLI2 all-purpose bearing grease.
K. Install bearing housings (A158 and B158 if grease lubricated, or C158 and D158 or E158 and F158)
over the bearings and securely bolt the bearing covers to the bearing housings using the appropriate
capscrews (159D)
L. Using a double rope sling, carefully lower the rotor assembly into the lower casing (2).
WARNING: BE CAREFUL WHEN POSITIONING THE ROPES TO AVOID THE ROTOR SLIPPING
AND CAUSING POSSIBLE SERIOUS PERSONAL INJURY.
CAUTION: WHEN LOWERING THE ROTOR, BE CAREFUL TO PROPERLY POSITION THE
WEARING RINGS. FAILURE TO DO SO COULD SERIOUSLY DAMAGE THE RINGS.