MBW 1790049, Operator'S Safety And Service Manual

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7.12. Troubleshooting
FAULT PROBABLE CAUSE REMEDY
The float machine leaks
oil
Too much oil in reduction gear Unscrew the cap
The screws of the reduction gear
covers are loose Tighten the screws
Defective gaskets Contact our technical service
Oil seal on central and side shaft worn Contact our technical service
Oil leaks from engine
Contact our technical service
The engine does not start
No fuel Fill the tank with the fuel indicated for
the engine used
Fuel cock closed Open the fuel cock
(  )
Fuel filter clogged Replace the filter
(  )
Choke fully open Close the choke
(  )
Air filter dirty Clean the air filter
(  )
No spark Clean the spark plug and replace it if
necessary
(

)
Check the plug connection
(

)
Ignition difficulty, engine flooded Unscrew the spark plug and dry it
(

)
Battery flat Recharge or replace the battery (Par.
7.3)
Emergency stop on Turn emergency stop off
Drop in engine rpm
Accelerator cable broken or bent Replace the accelerator cable
Engine problems Contact our technical service
Carburetor dirty Contact our technical service
Air filter dirty Clean or replace the air filter
(

)
The float machine does
not move forward and
backward
Tie rod broken Replace tie rod
Fork pin broken or slipped off Replace pin or fork
Bascule support jammed Clean bascule support
The float machine does
not steer left or right
Joysticks broken Replace broken joysticks
Joystick supports broken Replace joystick supports
The blades do not lift
Steel cord broken Replace blade-lifting cord
Steel cord nut lacking Fit nut
Fork broken Replace fork
The float machine
bounces on the floor
Cement hardened under spider or
blades Clean the spider and the blades
Blades not evenly worn Adjust the blade inclination
Central shaft bent Contact our technical service
Drive control not perfectly vertical Adjust the drive control position
Blades maladjusted Adjust the blades
When the engine is
revved up the rotors do
not turn Driving belts slack and/or worn Tighten the driving belts (see Par.7.7) or
replace them
Clutch lining worn Replace the lining
(  )
See engine use and maintenance manual
Once the power trowel guarantee has expired, the
machines should be subjected to a complete
check-up once a year. You can address to all our
authorized dealers all around the world.
MBW, Inc. will refuse all responsibility in case of
incident whenever the check-
ups won’t be done.