FORM NO. 56043126 - CR 1100, CR 1200 -
53
SCRUB SYSTEM
TROUBLESHOOTING GUIDE
Possible Symptom
1
Scrub deck will not lower
Part A:
Note: Do all testing with the key switch on, recovery tank empty and the hopper closed.
Press the scrub pressure
increase/decrease switch, is its green
indicator light on?
Substitute a new
A2 display panel.
Does the scrub deck raise?
Repair or replace
wiring or plug.
Does the motor
run?
Check for continuity in
the harness wires
GRN/VIO to pin J2-15
at the A1 board and the
BLK wire to battery
ground.
At the lift motor
separate the plug and
check for continuity
between the RED and
BLK wires (extend
limit switch) at the
motor plug.
On the A1 board is the
extend limit yellow light
on? Note: the yellow
limit light is one of the
14 grouped together.
Replace lift motor.
See Motor Load section
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?
Open in harness wires
repair or replace wires
to A1 board
no
no
no
no
no
no
no
yes
yes
no
yes
yes
yes
yes
Summary of Contents for Cr 1100
Page 72: ......