RIKON Power Tools 80-805 - Manual (Page 16)

OPERATING THE BENCH GRINDER
(Refer to Fig. K on page 14.)
7. Remove the Outer Wheel Flange (H) and
then the abrasive wheel (I) from the arbor
shaft (G).
8. The new abrasive
wheel to be put onto the grinder must have a
higher R.P.M. rating than the grinder’s motor.
The new abrasive wheel must have the
correct 8” outer wheel diameter and 5/8” bore
diameter as original wheels. The labels on the
sides of the abrasive wheel must stay on. DO
NOT remove these labels. These labels or
fiber discs help spread the holding
pressure of the tightened nuts on the grinding
wheel flanges.
9. Replace the abrasive wheel, outer wheel
flange and arbor hex nut. NOTE: The left
hand arbor hex nut is left hand threaded and
is tightened by rotating it counter-clockwise.
The right hand arbor hex nut is right hand
threaded and is tightened by rotating it
clockwise.
DO NOT OVER
TIGHTEN the arbor hex nut as this may
damage the abrasive wheel, wheel flanges
and cause serious injury to the operator.
10. Replace the wheel cover and secure it
back in place on the grinder with the fasteners
that were previously removed (step 4).
Turn the power switch “OFF” and unplug the
power cord from its power source prior to any
maintenance.
LUBRICATION
The Bench Grinder has sealed lubricated
bearings in the motor housing that do not
require any additional lubrication from the
operator.
CLEANING
With the Bench Grinder unplugged, rotate the
abrasive wheels slowly and inspect for any
damage or trapped debris. Periodically blow
areas in and around the grinder to keep the
machine and work area clean.
11. Run the new wheel at full speed for a few
minutes to ensure that it is rotating properly.
WIRE WHEEL or BUFFING WHEEL (Fig. L)
A wire wheel or buffing wheel (A) (not
included) can be used with your grinder.
Depending on the thickness of the wheel, you
will need to add one or more spacers (not
included) to allow the arbor hex nut (D) to
tighten correctly. Figure L shows the correct
placement of the spacer (B).
Note: Spacer (B) should always go onto
the arbor shaft first. Always use the wheel
flanges (E) that come with the grinder for both
wire wheel and buffing wheels. See section
CHANGING THE GRINDING WHEEL for
correct procedure of changing wheels. See
page 14.
CAUTION: REPLACE the abrasive wheels
if there is any damage at all. FAILURE to
replace a damaged wheel can cause serious
injury to the operator. Periodically check all
nuts and fasteners to make sure that they are
secure.
CAUTION: DO NOT USE FLAMMABLE
MATERIALS to clean the Bench Grinder. A
clean dry rag or brush is all that is needed to
remove dust and debris buildup.
Repairs to the Bench Grinder should be
performed by trained personnel only.
Unauthorized repairs or replacement with
non-factory parts could cause serious injury
to the operator and damage to the Bench
Grinder.
FIG. L
MAINTENANCE OF THE BENCH GRINDER
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