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ELECTRICAL TROUBLESHOOTING (Continued)
PROBLEM--Traverse Drive not working.
Assuming (SSS) System Start Switch is on with 120 volts AC to control panel and
all other functions are working.
Verify all wires shown on the wiring diagram are correct and pull on wire terminals with
approximately 3 lbs force to verify there are no loose terminal connections and/or no
loose crimps between the wire and the terminal. If problem persists, test as listed below.
Checkout Procedure
A. Turn on (TMS)
B. Set (TSP) to 35 on the control
panel
C. Check fuse and replace if
failed. See Page 24. Too heavy a
grind causes grinding head
traverse motor to overload and
blow the fuse.
NOTE: The Fuse can not be
checked visually. Remove fuse
and use Ohm test to check fuse.
If the fuse needs replacing you
MUST use a 3 amp slo-blo fuse.
Part Number 5NT3707546.
D. Check for 120 Volts (AC)
incoming to (TDC) with machine
on and TMS set to on.
E. Check for 120 Volts AC at
(TMS). (Make certain (TMS) is
on)
Traverse works
Yes--end troubleshooting
No--got to Step B. next
Traverse works
Yes--end troubleshooting
No--go to Step C. next
Traverse works
Yes--end troubleshooting
No--go to Step D. next
On (TDC) check Terminal L1 to L2 for
120 Volts AC
Yes--Go to Step F. next
No--Go to Step E. next
Measure 120 volts AC from TMS
Terminal 5 to nuetral (blue) terminal out
of FTR (02FTRBU)
Yes--Check continuity of wires from
Switch to Control. Replace wires.
No--Flip Switch and check again-
Works--Switch is upside down.
Does not work-- Check wiring/Verify
Continuity/ Replace Switch
Possible Cause
Traverse Motor Switch
(TMS) is not on
Traverse Speed Pot
(TSP) set to zero
Fuse on Traverse Drive
Control (TDC) has
failed
Check power to the
Traverse Drive Control
(TDC)
Bad Traverse Motor
Switch (TMS)