Neary 181, Service Manual

Page: 34 / 66

34
- ORIGINAL INSTRUCTIONS -
ELECTRICAL TROUBLESHOOTING
PROBLEM-- Power goes off when Grinding Motor or Spin Motor is turned on - Door Switch .
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.
Possible Cause Checkout Procedure
Door is open
No Power to Door Relay
Door Relay
Door Switch
A. Close Front door
B. With power on to machine (Tra -
verse works) check for power to Door
Relay (DRL)
C. Check for 120 VAC out of Door
Relay Conact.
D. Check for Power coming back from
door switch.
Machine works
Yes--end troubleshooting
No--go to Step
B.
next
Check for 120 VAC at A1 (103DRL-A1) to
A2 (104DRL-A2)
Yes--go to step C. next.
No--Check wires to #103 and #104
Check for 120 VAC at Terminal Strip 2 Ter -
minal 1 (100TB2-1) to Neutral (light blue
wire) on filter (02FTRBU).
Yes--go to step
D.
next.
No--Replace Door Relay.
Check for 120 VAC at Terminal Strip 2 Ter -
minal 2 (101TB2-2) to Neutral (light blue
wire) on filter (02FTRBU).
Yes--Check wire 101.
No--Check door switch alignment, make
adjustments if necessary and retest. If
machine still does not run replace door
switch.