Minuteman SCV28, Operation Service Parts Care

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GENERAL MACHINE TROUBLESHOOTING
Problem Possible Cause Remedy
Worn or torn squeegee blades Rotate or replace blades
Squeegee out of adjustment Adjust so blades touch floor
evenly across entire width
Recovery tank full Empty recovery tank
Recovery tank drain hose leak Secure drain hose cap or replace
Recovery tank lid gasket leak Replace gasket lid cover properly
Debris caught in squeegee Clean squeegee
Vacuum hose clogged Remove debris and flush hose
Using too much solution Adjust solution control valves
Poor water pick-up
Vacuum hose to squeegee or
recovery tank disconnected to
squeegee or damaged Reconnect or replace squeegee
hose
Worn brushes Rotate or replace brushes
Wrong brush or cleaning chemical Consult Minuteman
Debris caught on scrub brushes Remove debris
Moving machine too fast Slow down
Not using enough solution Adjust solution flow setting
Low battery charge Recharge batteries
Poor scrubbing
performance
Fault code on LCD screen 760x
(Brush motor) Reduce scrub brush pressure.
Broken brush drive belts on
cylindrical system, replace belt(s).
Check power connection.
Reconnect plugs.
Reset machine: Turn key switch
off and restart.
Solution tank empty Fill solution tank
Recovery tank full Empty recovery tank
Solution lines, valves, filter or spray
jets clogged Flush lines, and clean solution
filter and spray jets.
Inadequate solution flow
or no solution to the floor
Solution solenoid valve Clean or replace valve
Recovery tank full Empty recovery tank No solution to off-aisle
wand spray jet
Solution tank empty Refill solution tank
Emergency stop switch tripped Activate switch by turning as
indicated by arrows.
Operator seat safety switch Operator has to be seated.
Check for open circuit and replace
Main system controller Check error fault codes
(See service manual)
Machine does not run
Tripped 100 amp circuit breaker Check for electrical short circuit
Reset machine: Rest breaker and
turn key switch off and restart.
Drive system speed controller.
Fault code on LCD screen 780x
(Traction motor) Check error fault codes
(See service manual)
Reset machine: Turn key switch
off and restart.
No FWD/REV drive
Emergency stop switch tripped Activate switch by turning as
indicated by arrows.
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