TM 5-3610-253-14
e.
Tag and disconnect wires from backgauge brake.
f.
Remove mounting screws and defective backgauge brake.
Install new backgauge brake and secure with mounting screws.
g.
Reconnect brake wires.
h.
Reinstall motor junction box cover.
i.
Turn on power.
j.
(1) Place operator key in safety lock and unlock safety lock.
(2) Turn main power switch to I position.
(3) Turn Star-Delta switch to Y position. After main motor has reached
full speed, turn to
position.
k.
Trip the backgauge overload relay by pressing in on the O switch on the
relay.
l.
Press in on the backgauge control knob button.
Check for a clearance of .15 - 2.5 mm (.006 - 0.1 in.) between the
m.
friction plate and the brake when the brake is disengaged. If clearance
correct, proceed to step o.
If gap is incorrect, adjust gap by loosening locking nuts and readjusting
n.
friction disc clearance using mounting bolts.
Turn off power.
o.
(1) Turn Star-Delta switch to Y position, then to O position.
(2) Turn main power switch to O position.
Push the fan on the motor shaft.
p.
Reinstall backgauge brake cover.
q.
r.
Reset the backgauge overload relay by pressing the I button.
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