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TROUBLESHOOTING
8FP FLOOR PLANER SERIES OPERATION AND PARTS MANUAL REV #2 (05/28/09) PAGE 44
Troubleshooting
ELECTRIC MOTOR.
Application: 8FP/E Series Floor Planer.
MOTOR FAILS TO START
ON/OFF switch in the OFF position. Turn the switch to
the ON position.
Improper voltage selection. Determine the available
voltage value from the power source. Move the
voltage selection switch located on the motor to the
proper selection.
Floor Planer and/or extension cord is not plugged into
the power source. Determine that all electrical
connections have been properly made. The NEMA 6-
20 Series cap and receptacle set is of a twist lock
configuration and requires a twist motion to ensure a
proper connection.
Improper extension cord size and capacity. Operate
the Floor Planer with copper stranded, 8 AWG or
larger extension cords. Improper extension cord size
and capacity will result in significant heat rise and
corresponding voltage and amperage drop.
Thermal protection device activated. To protect the
motor against heat related damage, an automatic
thermal protection switch is provided near the voltage
selection switch. High operating temperatures will
activate the switch and shut the motor off. After the
motor has cooled to an acceptable temperature level,
depress the switch to restart.
MOTOR LOSES POWER
Improper extension cord size and capacity. Replace
with cords meeting the required specifications.
Excessive extension cord length. Even with proper
extension cord size and capacity, excessive cord
length can reduce the available voltage and amperage
to the motor. Measure the Available voltage to the
motor where the extension cord connects to the Floor
Planer with
a voltmeter. Reduce the extension cord
length as required to achieve the minimum voltage
operating specification as required by the motor
manufacturer.
Insufficient available voltage a nd amperage at the
power source. Measure the available voltage at the
power source (usually a receptacle) with a voltmeter. If
the available voltage is below the minimum operating
specification as required by the motor manufacturer,
utilize an alternative power source.
Improper motor cooling. See ELECTRIC MOTOR
SERVICE.
Excessive load to the motor. See OPERATING THE
FLOOR PLANER ON THE JOBSITE.
ENGINE.
Application: 8FP/G Series Floor Planer.
ENGINE FAILS TO START
Ignition switch in OFF or cut off position. Place switch
in the ON position or move throttle control lever to the
ignition operationa
l position.
Incorrect carburetor/fuel injection system adjustment.
See SERVICE section.
Air filter blocked. See SERVICE section.
Ignition wire to spark plug loose or disconnected. Re-
connect.
Fuel supply exhausted. Refill the fuel tank.
ENGINE LOSES POWER
Incorrect carburetor/fuel injection adjustment. See
SERVICE section.
Water in fuel supply. Drain and replace fuel.
Excessive carbon accumulation in combustion
chamber. See SERVICE section.
Fuel tank breather vent closed (if so equipped). Open
vent.
Air filter blocked. See SERVICE section.
OPERATIONAL PROBLEMS.
Application: All Models.
UNEVEN FLAIL WEAR
Excessive cutting depth for the feed/travel rate. Raise
the flail drum and make multiple, shallow passes
instead. Reduce the feed/travel rate. See
OPERATING THE FLOOR PLANER ON THE JOB
SITE.
Improper flail and spacer washer setup. See FLAIL
DESIGN AND APPLICATION.
Accumulation of foreign material. Clean and/or replace
the fl
ails and spacer washers as necessary.
Flails and/or spacer washers are too tight on the drum.
Remove and/or replace flails and spacer washers.
See FLAIL DRUM RODS.