TM9-4120-400-14
5-8.
(9) Coat shaft surfaces of rotor(9) with oil and slide bearings (10) on shaft ends. They should seat against
shoulders at the inner ends of shaft.
(10) Place spacer washer (8) and load spring (7) in same position as noted above
(11) Coat the bearing cavity of end cap (4) and stator housing (3) with oil and carefully slide rotor into stator
until bearing is seated.
(12) Work end cap (4) onto shaft until bore fits over end of stator (3). Keep the matchmark made during
disassembly in alignment.
(13) Place four screws (5) and lock washers (6) through end cap (4) into stator housing.
(14) Tap around end cap with a plastic or rawhide mallet while tightening screws (5). Tighten in alternating
sequence until all screws are equally tightened. Check for freedom of rotation by turning motor shaft
by hand. There should be no drag or binding.
4. Motor Assembly, Welco Industries Inc., Model M4720-50.
Figure 5-8. Condenser Fan Motor Assembly, Welco Model M-4720-50
5-22