Maintenance - Craftsman 146.669950 Owner's Manual

Wet sharp machine
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You will only need to grind
in both angles
if
cutting
edge
becomes
badly
damaged.
(Fig. 20)
Fig. 20
BADLY
DAMAGED
CUTTING
EDGE
REQUIRING
BOTH
PRIMARY
AND
SECONDARY
ANGLES
TO BE GROUND.
Move the tool back and forth across
grinding
wheel
to avoid wearing
down the wheel
unevenly.
If this occurs
"dress"
the wheel
as described
in the maintenance
section
of this manual
under
"Care of Grinding
Wheels."
MAINTENANCE
CARE
OF WIPER
Clean
wiper
after
each
use to remove
the
grinding
residue
or "swarf."
Loosen
tool
rest knobs
and allow
tool rest
to drop out of the way as shown
in Fig. 4 on
page 5.
With the aid of a screwdriver,
as shown
in
Fig. 21 pry the
wiper
out
of reservoir,
to
replace
the wiper
reverse
the procedure.
Rinse
wiper
thoroughly
under
faucet
to
remove
grinding
residue.
Replace
wiper
when worn
out.
PRY OUTWlPER
WITH
SCREWDRIVER
CARE
OF GRINDING
WHEELS
In normal
usage grinding
wheels
may become
grooved,
out of true, and become
"loaded."
Loaded
simply
means
that soft
metals
or other
materials
have filled
up the pores of the wheel.
When
this occurs,
grinding
action
is greatly
reduced.
Grinding
of soft metals
such as aluminum,
brass, copper,
lead and the like should
be avoided
as much as possible.
When any of the above con-
ditions
occur, the wheel
may be put in good condition
again by "dressing
the wheel."
Various tools
and abrasive
sticks
are available
in most hardware
stores
for this purpose.
To "dress"
the wheel,
start the Wet Sharp Machine
and work the dressing
stone back and forth across the wheel until all
grooves,
etc., are gone.
Be sure to use suitable
eye protection
for this purpose.
Dressing
stones
are available
at most hardware
stores
or may be ordered
through
Sears. See optional
equipment
in parts list.
IMPORTANT: Clean wiper after dressing wheel.
WHEEL
REPLACEMENT
If wheel
is cracked,
chipped,
or becomes
worn or excessively
grooved,
it is necessary
to replace
it. Order part no. 2905B8
"grind-
ing wheel
shaft assembly."
Disconnect
Wet
Sharp Machine
from power
source.
Loosen
all four top housing
screws
and lift off top
housing.
Grasp
grinding
wheel
and lift out
whole
grinding
wheel
shaft
assembly.
Remove
right
bearing
and slide
on to new
grinding
wheel
shaft
assembly.
Replace
grinding
wheel
shaft
assembly
in bottom
housing.
Replace
top housing
and screws.
.GRINDING
WHEEL
SHAFT
ASSEMBLY
RIGHT
BEARING
Fig. 22
9

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