Service manual

2023 Service Manual V1.0
7
7-3
BRUSH DRIVE SYSTEM
Scrub brush motor not
operating p
roperly
Test Machine /
Verify Compl
aint
Is the
brush motor
opera
ting
properly?
Advise customer on
proper mac
hine
operation.
Is the main
power switch
on
?
Turn on the main
power swi
tch.
NO
NO
YES
Is the power
ind
icator lit on the
control panel?
Check for power
into the main
control panel
Is there
power in?
Check condition of
the batteries.
Check for power
out of the power
switch. Turn the
switch on and off
to ver
ify switch
operation.
Is the main power
switch functioning
properly?
Replace the Main
Power switch.
NO
Is the
batt
ery gauge in the
“gree
n zone”?
Charge
Batter
ies.
Is the actuator
circuit breaker
tripped
?
Reset
bre
aker
and test for
proper
operatio
n.
NO
YES
YES
NO
YES
YES
NO
Press the green handle bar button while
tou
ching the side of the brush motor
relay
. You should feel the relay click
when you depress the button.
Does the
relay click?
GO TO
PAGE 2
“A”
NO
Check for ( + ) and
( - ) power at the
br
ush motor when
the green handle
bar butto
n is
depressed.
Do you have
( + ) b
attery
v
oltage?
Do you have
( - ) battery
voltage?
YES
YES
Repair break in
the wiring
bet
ween the ( - )
buss and the
brush motor.
NO
Check for ( + )
battery v
oltage at
eit
her terminal on
the load side of the
bru
sh motor relay.
GO TO
PAGE 2
“B”
NO
Repair the wiring
between the ( + )
battery terminal and the
relay.
YES
BRUSH DECK DIAGNOSIS FLOW CHART 1 of 2