TM 55-2210-224-34
3-24. POWER CONTACTOR (cont)
ASSEMBLY
16. Assemble interlock (28) by the following:
NOTE
All contacts are assembled the same way. Only one of each kind is called out.
a.
Position contact support (67) on base (68) and install flat washer (6
6), lockwasher (65), screw (64).
b.
Position contact finger (63) on contact support (67) and install flat washer (62), lockwasher (61), and nut
(60).
17. Position operating coil (55) on magnet frame (54) and install flat washer (59), lockwasher (58), and capscrew
(57).
18. Position magnet frame (54) with operating coil (55) and insulating block (53) on base (56) and install two flat
washers (52), lockwashers (51), and capscrews (50).
19. Position top contact holder and blow-out coil (49), insulator(48), and insulating block (47) on base (56) and install
two flat washers (46), lockwashers (45), and capscrews (44). Position clamp (43) and install capscrew (42),
lockwasher (41), and nut (40).
20. Position armature (39) and contact lever (38) together and install pin (37), two flat washers (36), clamps (35),
lockwashers (34), and capscrews (33).
21. Install contact pressure spring (32), spring retainer (31), and cotter pin (30).
22. Position armature stop (29) and interlock (28) on magnet frame (5
4) and install two lockwasher (27) and screws
(26) (where applicable). Position contact assembly (25) and install two flat washers (24), lockwashers (23), and
capscrews (22).
23. Connect calibrating spring assembly (21) on armature stop (29) and install calibrating screw assembly (20).
Tighten calibrating screw locknut (19).
24. Position shunt (18), movable contact tip (17), and arcing horn (16). Install two flat washers (15), lockwashers
(14), and allen-head screws (13).
25. Position stationary contact tip (12) and arcing horn (11) and install two flat washers (10), lockwashers (9), and
allen-head screws (8).
26. Position support spring (7) and install two lockwashers (6) and capscrews (5). Install arc shute assembly (4).
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