Repair manual

PS2 3703, PS3 3703, PS4 3703, PS3 5503, PS4 5503 Repair
Repair.fm 173
—If measured distance between impeller is greater than 0.5mm
(0.196in), pumping capacity drops.
—If measured distance between impeller is less than 0.3mm
(0.118in), impeller may contact volute, slow rotation, overload
motor and cause premature failure.
6.7.4.4 Impeller Reassembly
Note: If, upon inspection and testing, a pump component requires
replacement, use only original manufacturer’s replacement
parts.
1. With the pump on its side, replace the key (bb) properly in the
keyway of the rotor shaft.
2. Align and install impeller (az) over keyway of rotor shaft.
Note: Impeller vanes may be very sharp due to excessive wear.
Handle with care.
3. Install thread cover (al), lockwasher (am) and acorn nut (an).
4. Holding the impeller and rotor shaft from rotating, tighten acorn nut
(an).
5. Install gasket (ao), and suction cover (ap) to volute (av).
6. Secure suction cover (ap) with three bolts (bx) and three washers
(by).