Instruction 2111-801C
01-04
12
WARNING-SUITABLE PROTECTIVE CLOTHING (I.E. GLOVES) MUST BE WORN WHEN HANDLING
HEATED COMPONENTS.
BEARING HOUSING REASSEMBLY:
1.
Press bearing holder (5) if furnished, onto shaft (1). Holder can be heated in the same manner as
recommended for the bearings to case assembly. Carefully press radial bearing (11) onto shaft.
2.
Place retaining ring (7) loosely over mid section of shaft.
3.
Carefully press thrust bearing (8) onto shaft. Bearings must be installed so that the narrow inner races of
each bearing are face to face. Secure with bearing lock-washer (4) and bearing locknut (3). Pack thrust
and radial bearings 1/2 to 3/4 full of grease (see Recommended Lubricants, Page 4). DO NOT OVER
GREASE.
4.
Install grease seal (12) into casing cover (23). Primary lip should be oriented to restrict the entrance of
dirt, water, and contaminants on grease lubricated bearings. Assemble radial bearing housing (10) to
casing cover (23) and secure with cap screws (142).
5.
Install grease seal (21) into thrust bearing cap (2). Primary lip should be oriented to restrict the entrance
of dirt, water, and contaminants on grease lubricated bearings
6.
Turn shaft assembly vertical, with impeller end of shaft up, and drop assembly into thrust bearing cap (2).
Install retaining ring (7). Be sure that retaining ring is properly seated in groove.
7.
Rotate and insert shaft assembly into radial bearing housing assembly. Loosely install cap screws (6) and
adjusting stud/screws (57) onto thrust bearing cap (2).
8.
Slide water slinger (13) onto shaft end.
STUFFING BOX REASSEMBLY:
9.
Slip shaft sleeve (30) into stuffing box (120). Place packing rings (31) and seal ring (32) into stuffing box,
making sure that the center of the seal ring lines up with tapped lubrication hole in stuffing box (120).
Rings should be placed so that ends butt together and joints, are staggered in stuffing box.
10.
Install studs (when furnished), and then packing gland halves (16) and gland nuts (17). Gland nuts should
be tightened such that threads just engage. Adjustment will not be made until entire upper assembly with
impeller has been installed and adjusted. Remove shaft sleeve (30) from stuffing box, leaving packing
rings (31) and seal ring (32) intact.
11. Place "O" ring, (101) onto pump shaft (1). Install shaft sleeve (30) over shaft (1). Insert and tighten
setscrew (98). Place gasket (124) on casing cover (23) and install assembled stuffing box onto shaft.
Secure to casing cover (23) with nuts (125), making sure that casing cover and stuffing box are properly
lined up.
12.
Place bearing frame assembly horizontal on blocks or bench. Go directly to instruction 17.
MECHANICAL SEAL BOX REASSEMBLY:
The mechanical seal assembly is a precision product. Treat it with care. In handling, do not let the
carbon-sealing washer fall; and take particular care not to scratch the lapped faces on the washer and
floating seat. If the seal has been used before, do not put it back in service until the sealing faces of the
carbon washer have either been relapped or replaced,
9.A Oil the outer surface of the stationery seat rings (use light oil, not grease) and push the assembly into the
seal cover and into the seal box. Seating them firmly and squarely. If it is not possible to insert seats with
clean fingers, place a cardboard protecting ring over face of seats and press into bore with a piece of
brass tubing having a square cut smooth end. Tubing should be slightly larger than diameter of shaft.
Remove cardboard after seat is firmly seated.
Before completing the shaft installation, wipe the lapped sealing faces of the seat and sealing washer
perfectly clean.
10.A Place washer and bellows inboard assembly on shaft (not spring) and slide into position against inboard
(seal box) seat. When sliding seal assembly on shaft, be sure to press ONLY on tail sections of bellows
and driving band. Use a smooth sleeve of about 1/32" over shaft diameter with a wall thickness sufficient
to butt against the driving band.
11.A Install spring into position making sure it is properly seated over retainer.
12.A Place washer and bellows outboard (seal cover) assembly on shaft and slide into a position so that spring
is not compressed more than 1/16". Make sure spring is properly seated.
13.
Before putting seal cover (121) on shaft thoroughly clean and oil lapped faces of both seal washer and
seat. Then slide seal cover (121) and press it in as far as it will go. Do not allow it to spring out or move
backward.
14.A IMMEDIATELY install impeller as described in 17, and 18.
15.A Set impeller clearance as described in 19B, on page 9.
