Repair manual

Repair PS2 3703, PS3 3703, PS4 3703, PS3 5503, PS4 5503
Repair.fm 174
7. Measure the distance between the impeller (az) and the volute (av)
after assembly. Keep a recommended clearance of 0.3–0.5mm
(0.118–0.196in).
—If the measured distance between the impeller is greater than
0.5mm (0.196in), the pumping capacity drops.
—If the measured distance between the impeller is less than
0.3mm (0.118in), the impeller may contact the volute and slow
rotation, overload the motor causing premature failure.
8. Install additional gasket (ao) to obtain recommended clearance.
9. Secure suction strainer (as) with three stud bolts (ar) and three
washers (aq).
10.Pre-test pump to verify proper operation.
11.Performance test pump. Test results should be:
PS2 3703
PS3 3703
PS4 3703
PS3 5503
PS4 5503
Maximum head > 29.8m (98ft)
Maximum volume > 461.8 ltr/min (122gpm)
Maximum head > 26.5m (87ft)
Maximum volume > 704.0 ltr/min (186gpm)
Maximum head > 15.8m (52ft)
Maximum volume > 1241.6 ltr/min (328gpm)
Maximum head > 32.6m (107ft)
Maximum volume > 836.5 ltr/min (221gpm)
Maximum head > 19.8m (65ft)
Maximum volume > 1377.8 ltr/min (364gpm)