Maintenance; Carbon Brushes - Partner K2300 EL Operator's Manual

OPERATION
(See picture no. 3)
1. CAUTION: Your 12 inch Partner K23OO EL cut-off saw is furnished with a cord and a three-
pronged plug. Before plugging in the tool, make sure that the voltage markedon the tool is the
same as the power supply.
2. Before turning on the tool, grasp both handles firmly and pick up the tool. Make sure nothing
is near to or in contact with wheel. Line up wheel with material to be cut.
3. Turn on the cut-off saw, and feed wheel into work slowly. Use firm pressure and move the disc
slowly backward and forward in the cutting slot to oblain as small a contact surface as possi-
ble. This will give you good cutter disc economy and maximum cutting capacity.
CAUTION: Do not press so hard that RPM drops significantly. Thus will substantially decrease
your cutting efficiency, and overload the saw. Overloadmg causes faster drsc wear and poor cut-
ting, and may cause burn out. Allow the saw to cool down, and back off slrghtly on the pressure
when you continue.
Cooling
The machine is fitted with an effective fan to cool the motor. Cooling air sucked through the grill
in the inspection cover passes over the stator and motor and then leaves the machine through the
front section of the motor housing.
CAUTION: To ensure that the machine always has satisfactory cooling, the cooling air opening
must be kept clear. Clean the machine regularly with compressed air. Clogged coolrng passages
will cause the saw to burn out.
MAINTENANCE
To ensure safety and reliability, repairs, maintenance and adjustments (excluding cleaning, brush
inspection, and brush replacement) should be performed by a Partner authorized service shop or
other qualified service organization, always using original Partner replacement parts.
Carbon brushes
(%e picture no. 5)
The electric plug must be taken out of the power outlet before any work is done on the machine.
The brushes and commutator in your Partner cut-off saw have been engineered and matched for
many hours of dependable service. Like any other tool with a universal motor, it is necessary to
replace the carbon brushes when they are worn.
When replacing the carbon brushes (always replace both at the same time) loosen the two screws
and remove the inspection covers. Clean the brush holders with a dry brush and blow out dust
carefullyCheck that the new carbon brushes slide easily in the brush holders. Allow the new car-
bon brushes to be run in for several minutes with the saw running half load.
For maintenance of abrasive wheels, please refer to your Operator's Safety Manual
7