Tuttnauer 6671130, Operation & Maintenance Manual

Page: 99 / 143

MAN205-0195042EN Rev. A Aug. 2011
Page 93 of 137 pages
9.6 The SHURFLO Water Pump Rear Endbell Replacement Kit
Warning
To prevent electrical shock, disconnect power before initiating any work. In the
case of pump failure, the motor housing and/or the pumped fluid may carry high
voltage to components normally considered safe.
Caution
Release pressure on the outlet side of the pump before doing any maintenance
work.
Inspect the motor armature/commutator for any indication of the following conditions.
Check the commutator brush contact surface for deep wear, scores, filled/shorted slots,
or a burnt condition. Minimum commutator diameter is .850 in. [21.5 mm] (115 &
23OVAC). Check armature windings
for open, shorts, internal ground, and commutator
connections. The windings should not be overheated, black in color, or have a burnt
odor.
If the motor has any indication of the aforementioned or other failure modes, the endbell
kit will not correct the failed condition. Complete motor assemblies. Contact Tuttnauer
for a complete motor assembly.
Replacement Instructions:
1. Mark the motor housing to index the location of endbell wires to the housing.
NOTE:
If the endbell is improperly indexed to the motor housing (180°) the motor will rotate in
the opposite direction.
2.
Remove the two motor assembly screws using a 5/16‖ socket wrench or nut
driver.
3. Remove the rear endbell assembly. Inspect for signs of excessive wear on the
commutator and/or armature. Ensure the proper placement of washers on the
shaft as shown.