Chicago Electric 66672, Руководство по установке и эксплуатации, Страница: 13 / 19

SKU 66672 For technical questions, please call 1-800-444-3353. Page 13
To remove or install the Grinding 2.
Wheel (19):
Spindle Lock Button (1)
Figure 3
a. Press in and hold the Spindle Lock
Button (1) to prevent the Spindle
(14) from turning - See Figure 3.
Figure 4
Pin Wrench (42)
Clamp Nut (20)
b. Use the Pin Wrench (42) to remove
the Clamp Nut (20) - See Figure 4.
Check that the Grinding Wheel is: 3.
rated to at least 7,800 RPM. •
4-1/2” in diameter. •
equipped with a 7/8” round arbor •
hole.
0.54” thick or less. •
suitable for surface grinding, not •
edge grinding.
dry and clean. •
proven undamaged by inspec- •
tion and by the ring-test explained
below.
Closely inspect the Grinding Wheel 4.
before mounting. Perform a ring-test
on the wheel as follows:
Suspend wheel using a pin or finger a.
through the arbor hole.
Figure 5
Tap
Wheel
Here
45° 45°
45° 45°
Hang
Wheel
from Pin
V
E
R
T
i
C
A
L
C
E
n
T
E
R
b. Tap the flat side of the wheel with a
light non-metallic object, such as a
screwdriver handle, at a point 45°
from the vertical center line on each
side of the wheel and 1 – 2 inches
from the edge of the wheel - See
Figure 5.
Rotate the wheel 45 degrees and
c.
repeat the test until the entire wheel
has been checked.
An undamaged wheel will give a
d.
clear tone. If cracked, there will be a
dead sound and not a clear ring.
Spindle (14)
Clamp Nut (20)
Flange Cushion (15)
Grinding Wheel (19)
Figure 6
5. Replace the Grinding Wheel (19)
onto the Spindle (14) - See Figure 6.
Thread the Clamp Nut (20) onto the
6.
Spindle. Wrench tighten only enough
so that the wheel is securely held on