Mathey Dearman MiniMag XM - Manual (Page 15)

Symptom What to Do Corrective Action
Drive Motor
(1) is
grinding or is
not rotating
correctly
(continued)
Connect a volt-ohm meter between 1 of the Leads of
the 90-volt Leads of the Motor Control Box and one of
the Leads of the Motor. Plug the Motor Control Box
into a 110 VAC Electrical Outlet. Turn the Rheostat
(G) clockwise until it stops. Loosen the Screws in the
Motor Flange 1 full turn. Loosen the 4 Screws in the
Round Plate at the back of the Transmission. Check
for clearance between the Screw Gear on the Output
Shaft of the Transmission and the Round Gear on the
end of the Wheel Assembly.
Note: If you do not get a reading with the volt-ohm
Meter move the Forward and Reverse Switch (F) in the
opposite position. If the amperage drops when the
Screws in the Round Plate are
loosened, insert a washer between
the Motor and the inner wall of the
Mini‘Mag’
body. Follow the
instruction for “Installation of the
Drive Motor.”
If the amperage does not drop when
the screws are loosened, retighten
the screws in the round plate.
Loosen the screw in both of the
Mounting Blocks of 1 of the
Wheel Assemblies. If the
amperage drops follow the
instruction for “Adjusting the
MagnaCut Tracking.”
If the amperage does not drop when
the Screws are loosened, retighten
the Screws in the Mounting Blocks.
Loosen the Screw in both
Mounting Blocks of the other
Wheel Assemblies. If the
amperage drops follow the
instruction for “Adjusting the
MagnaCut Tracking.”
Drive Motor
is
Overheating
Connect a volt-ohm Meter between 1 of the Leads of
the 90-volt Leads of the Motor Control Box and one of
the Leads of the Motor. Plug the Motor Control Box
into a 110 VAC Electrical Outlet. Turn the Rheostat
(G) clockwise until it stops. Loosen the Screws in the
Motor Flange 1 full turn. Loosen the 4 Screws in the
Round Plate at the back of the Transmission. Check
for clearance between the Screw Gear on the Output
Shaft of the Transmission and the Round Gear on the
end of the Wheel Assembly.
Note: If you do not get a reading with the volt-ohm
Meter move the Forward and Reverse Switch (F) in the
opposite position.
If the amperage on the volt-ohm
Meter drops insert Washers
between the Motor Flange and the
inner wall of the Mini‘Mag’ body.
If the amperage does not drop when
the Screws are loosened, retighten
the Screws in the Round Plate.
Loosen the screw in both
Mounting Blocks of 1 of the Wheel
Assemblies. If the amperage drops
follow the instruction for
“Adjusting the MagnaCut
Tracking.”
If the amperage does not drop when
the Screws are loosened, retighten
the Screws in the Mounting Blocks.
Loosen the Screw in both
Mounting Blocks of the other
Wheel Assemblies. If the
amperage drops follow the
instruction for “Adjusting the
MagnaCut Tracking.”
The play between the Screw Gear
and the Round Gear on the end of
the Wheel Assembly should be
.003 - .005 by sight. To adjust the
play between the Screw Gear and
the Round Gear on the end of the
Wheel Assembly, follow the
instruction for “Adjusting the
MagnaCut Tracking.”