Service manual

2023 Service Manual V1.0
7
7-4
BRUSH DRIVE SYSTEM
FROM
PAGE 1
“A”
Do you have
( + ) batt
ery
voltage?
Check for ( + )
battery voltage
at
the green handle
ba
r switch.
Do you
have ( + ) battery
voltage
?
NO
Repair break in the wire between
the main p
ower switch and the
green handle bar button.
NO
Press the green
handle b
ar button
and check to see if
it is worki
ng
Is the switch
working?
NO
YES
Call the factory
YES
Is there
( + ) battery
voltage?
Check for ( + ) battery
voltage at the green wire
go
ing to the coil circuit on
the brush relay when the
green handle bar button is
depressed
.
FROM
PA
GE 1
“B
”
Check for ( - )
battery voltage on
the black wire to
the brush relay coil
ci
rcuit.
Is there ( - )
batter
y voltage?
Repair the wiring and
retest the machine.
YES
NO
Replace the brush
relay. Retest the
machine.
YES
Repair the wiring from
the ( + ) b
uss to the
bru
sh motor relay.
NO
Check for ( + )
battery voltage on
the other load
termi
nal of the
rel
ay when it
clicks.
Is there ( + )
battery voltage?
Replace the brush
motor relay
Repair wiring between the
brush motor and the brush
motor relay.
YES
NO
YES
Replace the switch and
retest the machine.
BRUSH DECK DIAGNOSIS FLOW CHART 2 of 2