FORM NO. 56043126 - CR 1100, CR 1200 -
47
VACUUM SYSTEM
TROUBLESHOOTING GUIDE
Possible Symptom
1
Vacuum motor will not activate
Part A:
Note: Do all testing with the key switch on, empty recovery tank, hopper closed, squeegee lowered, seat switch and the foot pedal activated.
Press the squeegee
switch, is its green
indicator light on at the
A2 display panel
Substitute a new A2
display panel.
Does vacuum operate?
Lower the squeegee then
activate the foot pedal.
Note seat switch must be
closed, is the green vacuum
light on at the A1 main
board?
Replace A1 control
board. Does the
vacuum motor
operate?
On the A2 board is the recovery
tank full light on?
Inspect, clean or replace tank
indicator switch and wires.
(Switch is closed when tank is empty)
Locate the indicator switch plug and
jump out the machine harness wires
GRA/YEL and BLK.
Does the light go off?
Check for 36V input at
the K7 coil wires colors
(+)VIO & (-)BLU
Repair or replace
wiring to coils. Does
vacuum motor
operate?
Check for K7 coil
resistance 120 ohms
(+ or - 10%)
Replace defective
contactor. Does
squeegee operate?
See Part B Load Circuit
no
no
no
no
no
no
no
no
no
yes
yes
yes
yes
yes
yes
Содержание Cr 1100
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