8
Fig. 21
Fig. 20
Fig. 19
Fig. 18
Fig. 17
DRESSING A
GRINDING WHEEL
When dressing a grinding wheel, use a suitable silicon
carbide stick type dresser, as shown in Fig. 17. Bring the
dresser forward until it just touches the high point of the
face of the wheel and dress the wheel by moving the
dresser back and forth. Repeat this operation until the
face of the wheel is clean and the corners are square.
CHANGING
GRINDING WHEELS
When changing the Catalog No. 23-702 5 grinding wheel,
remove the eye shield, tool rest and side cover. Loosen
and remove arbor nut (A) Fig. 18, by turning it counter-
clockwise when viewed from the wheel end of the motor.
To prevent shaft rotation, hold the grinding wheel by
hand, as shown.
IMPORTANT: WHEN INSTALLING THE
NEW WHEEL, DO NOT OVERTIGHTEN THE ARBOR
NUT (A)
.
When changing the Catalog No. 23-701 10 grinding
wheel, remove the four screws (A) Fig. 19.
Lift the complete motor assembly (A) Fig. 20, off the base
casting (B). Remove bearing block (C) from end of shaft.
Hold grinding wheel and turn arbor nut (D) Fig. 21,
counterclockwise, when viewed from wheel end of shaft,
to loosen and remove nut (D).
IMPORTANT: WHEN
INSTALLING THE NEW WHEEL, DO NOT OVER-
TIGHTEN THE ARBOR NUT (D)
.
SILICON CARBIDE
GRINDING
WHEEL
TOOL
REST
STICK
DRESSER
A
A
A
A
B
C
A
D