TM 5-4310-385-13
d.
Remove two screws (5) that secure contact board (6) to base plate (7).
e.
Separate coil (8) from base plate (7) by pulling back on clips (9).
f.
Remove magnet (10) from coil (8).
g.
Holding starter in left hand, press on crossarm as far as it will go while you grasp the clip (11) and lift and slide the
armature (12) from coil (8).
h.
Tag and remove relay wires (13) at X1 and X2.
i.
Loosen three setscrews (14) and remove overload relay (15) from contact board (6).
NOTE
Relay(15) is not repairable and should not be disassembled. Replace entire relay
as necessary.
j.
Remove cross arm assembly (16, 17, 18) and springs (19) from board (6).
CLEANING AND INSPECTION.
WARNING
Clean motor starter components with compressed air no greater than 30 psi. Eye
protective equipment must be worn when cleaning with compressed air.
a.
Use compressed air no greater than 30 psi to blow out dirt from all motor starter components. Wipe with
clean rag.
b.
Inspect all non-metal components for cracks. Replace as necessary.
NOTE
Contacts will discolor and pit in use.
c.
Inspect contacts (17) for excessive pitting or burning. Replace as necessary.
d.
Inspect overload relay (15) for cracks or melted overload coils. Replace entire relay as necessary.
REASSEMBLY.
a.
Install contacts (17) on crossarm (16).
b.
Assemble crossarm (16), crossarm base (18), and springs (19) to contact board (6).
c.
Install spring clip (11) and armature (12).
d.
Install overload relay (15) to contact board (6). Tighten setscrews (14).
e.
Connect two relay wires (13) at X1 and X2.
f.
Slide magnet (10) into coil (8).
g.
Install coil (8) into base plate (7). Make sure retaining clips (9) are engaged.
h.
Position contact board (6) onto base plate (7) and secure with two screws (5).
i.
Install cover (4) and tighten screws (3).
j.
Connect wires to coil terminal W (1) and terminal screw (2).
k.
Connect wires to overload relay terminals (13).
I.
Install starter assembly to enclosure. Refer to paragraph 3-19.
m.
Double check wiring for correct installation and make sure all terminal screws are tight.
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