TM 5-3610-253-14
(1) Turn main power switch to I position.
(2) Turn Star-Delta switch to Y position. After the main motor has
reached full speed, turn switch to
position.
(3) Press control power on switch.
Move backgauge forward or backward as required until the backgauge
e.
position is displayed on the measurement display.
With knife in upper position, check pin 13 a/c for 0 volts. Use ground
f.
post on SCU as ground. If voltage is present, replace gear limit
switches (paragraph 5-40.45).
With knife in lower position, check pin 13 a/c for +24 V. Use ground
g.
post on SCU as ground. If +24 V is not present, replace gear limit
switches (paragraph 5-40.45).
Turn off power.
h.
(1) Turn Star-Delta switch to Y position, then to O position.
(2) Turn main power switch to O position.
Reinstall circuit board HK, and extend circuit board IAR.
i.
Turn on power.
j.
(1) Turn main power switch to I position.
(2) Turn Star-Delta switch to Y position. After the main motor has
reached full speed, turn switch to
position.
(3) Press control power on switch.
k.
Move backgauge forward or backward as required until the backgauge
position is displayed on the measurement display.
With knife in upper position, check pin 15a for 0 volts. Use ground
l.
post on SCU as ground. If voltage is present, replace gear limit
switches (paragraph 5-40.45).
With knife in lower position, check pin 15a for +24 V. Use ground
m.
post on SCU as ground. If voltage is not present, replace gear limit
switches (paragraph 5-40.45).
n.
Turn off power.
(1) Turn Star-Delta switch to Y position, then to O position.
(2) Turn main power switch to O position.
o.
Reinstall front and rear electronics enclosure covers.
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