H4665A Submersible Pump
Greenlee / A Textron Company
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
53
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
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 manu facturer’s instructions for
curing. Secure impeller and shims to shaft with left-
handed acorn nut (30) by tightening counterclockwise.
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
0.28 to 0.38 mm (0.011 to 0.0015"). 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.
