Porter-Cable PCXB515BG Instruction Manual page 14

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CHANGING GRINDING WHEELS
(FIG. D, E, F, G, H)
CAUTION
!
Turn off and unplug the bench grinder.
Use only grinding wheels that measure
6 in. (150 mm) in diameter. This tool has
1/2 in. (12.7 mm) arbors on both sides.
1. Raise the eye shield (1) out of the way
and adjust the spark guard (2) in its
highest setting.
2. Loosen the knob (3) and remove the tool
rest assembly (4).
Fig. D
2
4
3. Remove three screws (5) and lock nuts (6)
from the left side wheel cover and then
remove the outer cover (7).
4. To prevent wheel rotating, place a wood
wedge (8) (not supplied) between the
wheel and the wheel cover as shown in
Fig. E.
NOTE: Using a metal object, like a
screwdriver, is not recommended as it
may damage the grinding wheel.
Fig. E
7
5
1
3
8
6
5. Loosen the hex nut (9) by an adjustable
wrench as shown in Figure F.
NOTE: The nut on the left side of the
grinder has a standard left-hand thread
(turn clockwise to loosen). The one on the
right side has a right-hand thread (turn
counterclockwise to loosen). Both wheel
nuts tighten when turning toward the rear
of the grinder and loosen when turning
toward the front of the grinder.
Fig. F
loosen
9
6. Remove the hex nut (9), the outside
wheel flange (10) and the wheel (11).
Fig. G
11
10
9
7. Inspect the wheel (11) for cracks, chips
or any other visible damage (other than
normal wear) and discard if such damage
is found. Inspect the blotter/cardboard
disc for damage. If the blotter is missing
or severely damaged, replace it with a
piece of thin cardboard or blotter paper
cut in the same shape. NEVER USE
A GRINDING WHEEL WITHOUT A
BLOTTER.
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