CLAUSING 1660 - VARIABLE SPEED DRIVE OPERATIONS; CHANGING SPINDLE SPEEDS; REPLACING VARIABLE SPEED BELT

CHANGING SPINDLE SPEEDS
To change speeds on variable drive, turn handwheel con-
trol until pointer shows desired speed.
CAUTION: Do not turn handwheel control unless
motor is running.
Figure 5
REPLACING VARIABLE SPEED BELT
1. With motor running, turn variable speed dial to
700 rpm, then turn off motor.
2. Turn variable dia .l to ~owest speed - this releases
belt tension.
3. Remove cap screws (A & D, fig. 5 ) and s !ide guard
.(E) off rear of machine.
4. Remove cap screws (G) from spindle pulley guard.·
5. Remove pulley guard by pulling forward.
6. Remove ol\J belt.
7. Slip new belt over spindle pulley. Work belt on to
motor pulley by rotating motor pulley by hand.
)
IMPORTANT: Belt Adjustment.
8. Install pulley guard. Start motor and turn variabl e
control dial to high es t spee d - variable belt (F)
s hould be flush with out side of motor pulley.
If variable belt is not flush with pulley:
A. Loosen lock nut (C) and turn adjusting rod
(B) clockwise (with pliers) until belt is flush.
B. Tighten lock nut (C) .
If variable belt proj ects b eyond the pulley edge:
A. Loosen lock nut (C) and turn a djusting rod
(B) counterclockwise until belt is flush with
edge .
B.
Tighten lock nut (C).
9. Ins tall be lt guard.
2.2
Figure 6
QUILL TAKE-UP
Front of drill press head is split and has two screws
that have been set at ~actory to provide an accurate fit
between head and quill. This setting should not be dis-
turbed unless play develops between quill and head.
To eliminate play, tighten the two screws on each side
of quill lock (use correct size screw driver) until all
play has been removed. Fig. (6). Move quill up and
down in head to make sure it slides freely with no play
·- DO NOT HAVE ADJUSTMENT TOO TIGHT .
Figure 7
REMOVING CHUCK
Insert chuck wrench handle in hole in chuck collar.
While holding chuck in right hand, strike wrench
handle with heel of left hand in a clockwise direction
- see Fig.
(7). Continue turning collar to remove
chuck
from spindle,
Important - Alw ays clean spindle taper and chuck
taper bore before replacing chuck. Chips or dirt score
the spindle and cause chuck to slip and run out of true.
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1661