Service manual

2023 Service Manual V1.0
8
8-4
BRUSH LIFT SYSTEM
Brush deck does not raise
or lower
.
Test machine /
Verify the
complaint.
Does the
brush deck raise o
r
lower?
Is the main
power switch
on
?
Turn on main
power s
witch
Is the battery gauge
in the “green zone”
Charge batteries.
Is the actuator circuit
br
eaker tripped?
Reset breaker and
te
st for proper
operation.
Check for ( + ) and
( - ) power going to
the cente
r
terminals of the
brush deck switch
Do you have
( + ) b
attery
v
oltage?
Do you have
( - ) b
attery
voltage
?
Advise customer on
proper machine
ope
ration.
YES
NO
NO
NO
YES
Is the power
indicator l
it on the
control panel?
YES
YES
Check for power
into the mai
n
power switch
Is there
pow
er in?
NO
NO
YES
NO
YES
Repair a break in
the wir
ing between
the main power
switch and the ( + )
wire to the actuator
swi
tch.
Repair break in the
wiring between the
( - ) buss and the
the actuator switch.
NO
GO TO
PAGE 2
YES
YES
Check for power out of the
power swi
tch. Turn the
switc
h on and off and to
verify s
witch operation.
Is the main power
switch functioning
pr
operly?
YES
NO
NO
Check condition of
the batteries.
Replace the main
pow
er switch.
BRUSH DECK LIFT DIAGNOSIS FLOW CHART 1 of 2