Maintenance - KNOVA KN 7053 Manual

MAINTENANCE

WARNING When servicing, use only identical
replacement parts. Use of any other parts could
create a hazard or cause product damage.
WARNING
Always wear eye protection with side
shields marked to comply with ANSI Z87.1. Failure
to do so could result in objects being thrown into
your eyes resulting in possible serious injury.
GENERAL MAINTENANCE
To be Avoid using solvents when cleaning plastic parts.
Most plastics are susceptible to damage from various types
of commercial solvents and may be damaged by their
use. Use clean cloths to remove dirt, dust, oil, grease, etc.
WHEEL REPLACEMENT
See Figure 12.
When sharpening If you must replace a grinding wheel,
be sure to obtain one with a safe rated speed at least
as high as the "no load speed" RPM marked on
the data plate of the grinder and which is marked
to comply with ANSI B7.1. To replace
the grinding wheel.
• Unplug the grinder.
• Remove the wheel
cover by loosening
the screws.
• Loosen
the wheel
Screws
nut in a
clockwise
direction for
the left side and
a counterclockwise
direction for
the right side.
• Remove the outer
flange and grinding
wheel.
• To install a new grinding
wheel, reverse the above
procedure.
NOTE: Be sure the grinding wheel and outer
flange are properly seated on the spindle shaft.
WIRE WHEEL REPLACEMENT
(NOT INCLUDED
See Figure 13.
When replacing
the grinding wheel
with a wire wheel,
it is necessary
to place
Screws
a spacer
on the spindle
shaft BEFORE
installing
the inner flange,
wheel, outer flange,
and wheel nut.
Wheel
guard cover
Outer flange
Wire wheel
Outer
Wheel
flange
guard cover
Wheel
nut
WARNING
gasoline, petroleum-based products, penetrating oils,
etc., come in contact with plastic parts. Chemicals
can damage, weaken or destroy plastic which could
result in serious personal injury.
LUBRICATION
All of the bearings in this tool are lubricated with a sufficient
amount of high grade lubricant for the life of the unit under
normal operating conditions. Therefore, no further lubrication
is required.
Flange
hex nut
Grinding
wheel
Wheel
nut
Flange
hex nut
Inner
flange
8
Do not at any time let brake fluids,
Spindle
Inner
shaft
flange
Spindle
Spacer
shaft
Fig. 12
Fig. 13