30
- FORM NO. 56043126 - CR 1100, CR 1200
SWEEPING SYSTEM
TROUBLESHOOTING GUIDE
Possible Symptom
1
Main Broom will not turn.
Part A: Electrical Control Circuit
Note 1: Do all testing with the key switch on, broom lever lowered, hopper open indicator light off and drive pedal activated (Place in forward or
Reverse).
Note 2: If the main broom overload indicator light is on see part B
Main broom will not turn
On the A1 board is
the main broom
indicator light on?
Check the adjustment and
operation of the S8 main broom
switch. Is the switch open when
main broom lever is lowered.
Check for 36V at the K4
solenoid coil: wire colors:
GRN/GRA(-) & VIO(+)
Check both wire(s) for
continuity. Repair or replace
defective wire(s).
Does the broom run?
Clean, adjust or
replace the broom
switch S8. Does the
broom run?
Check the K4 coil
resistance 120 ohms
(+ or - 10%)
Replace the A1 main controller.
Does the broom run?
Replace K4 solenoid.
Does the broom run?
See Part B
no
no
no
no
no
no
no
yes
yes
no
yes
yes
Содержание Cr 1100
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