Assembly - Greenlee Fairmont H4665A Service Manual

H4665A/42191 Submersible Pump
Assembly (cont'd)
Retainer and Seal Carrier
Serial Number before 97720:
1. Install two O-rings (A) and one O-ring (19) in
retainer (B).
2. Install seal carrier (F) in retainer (B). Secure using
retaining ring (G).
3. Install two quad rings (D) and O-rings (C, E) in seal
carrier (F).
4. If removed, install one spring pin (21) in motor body
(1). Install retainer (B) in motor body (1) aligning
hole in retainer with spring pin in motor body.
Secure using six socket head cap screws (22).
5. Turn drive shaft (3). Drive shaft must turn without
binding.
Handle, Motor and Volute
1. Install motor assembly in volute (24). Install handle
assembly (39, 40, 41) on appropriate holes in flange
of motor body (1). Secure handle assembly and
motor assembly to volute using five socket head
cap screws (25). Tighten cap screws securely.
Impeller
Note: Mating surfaces of impeller (29) and inlet (32)
are critical. Use every caution to prevent damage
to these parts.
Install shims (26, 27) on drive shaft (3). Install key (28)
in drive shaft (3). Install impeller (29) on drive shaft (3),
guiding keyway in impeller over key in drive shaft (3).
® ®
Apply Loctite 242 , or equivalent, to threads of acorn
nut (30). Follow the manufacturer's instructions for
curing. Secure impeller and shims to shaft with left-
handed acorn nut (30) by tightening counterclockwise.
Greenlee Textron / Subsidiary of Textron Inc.
Impeller Clearance
1. To check impeller (29) clearance, install shims (31)
and inlet (32) on volute (24) using six hex head cap
screws (not provided).
2. Using a feeler gauge, check clearance between
impeller (29) and inlet (32). Clearance must be
.28 - .38 mm (.011 - .015"). If clearance is not
correct, remove inlet (32) and impeller (29). Add or
remove shims (26, 27) as necessary and/or shim
(31) to achieve the correct clearance.
Inlet screen (Strainer) and Base
1. Install six hex head cap screws (35), lock washers
(36), and flat washers (37) in base (34). Position
base so threaded ends of cap screws (35) point
upwards.
2. Install six bushings (33) over the six cap screws
(35). Install inlet screen (strainer) (38) in groove
of base (34). Slide inlet (32) over the six cap
screws (35), and install the inlet screen in groove
of inlet (32).
3. Install laminated shims (31) over the six cap
screws (35) and on inlet (32).
4. Secure inlet and strainer assembly to volute (24)
using the six hex head cap screws (35). Tighten cap
screws securely.
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