Hafco BM-23A, Руководство по эксплуатации

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15
OPERATION MANUAL
SETTING BM-23A SPINDLE SPEED
The Model BM-23A has eight spindle speeds—four
in low motor speed and four in high motor speed.
Setting the spindle speed involves: 1) Selecting
the spindle speed range, 2) positioning the V-belt,
and 3) setting the spindle switch.
To Set The Spindle Speed:
1. DISCONNECT MACHINE FROM POWER!
2. Use chart below or spindle speed chart on
headstock to find appropriate spindle speed
for your operation (see Fig. 4.2).
Range
Lever
Fig. 4.3
3. Pull the spindle speed range selector knob (see
Fig. 4.3) out, position either in HIGH or LOW range,
then release knob to seat knob pin in detent.
NOTE:
If it is difficult to move range selector
knob, rotate spindle by hand to help mesh the
gears until selector moves freely.
Fig. 4.2
4. Lever 1 is shown in Fig. 4.4 in the HIGH or LOW
position
Belt
Covers
NOTE: If this step was not successful, use HIGHLOW
range lever (Lever 2 Fig. 4.4) to reset speed range,
then repeat this step until you are certain that spin-
dle is seated into spindle clutch.
5. Remove belt housing side covers on either side of
head to expose V-belt and pulleys, as shown in
Fig. 4.3
.
6. Loosen two motor lock levers, one on each
side of head, then pull belt tension adjustment
lever forward to release V-belt tension
(see Fig. 4.3).
7. Refer to spindle speed chart on front of headstock
(see Fig. 4.2), and position V-belt on pulleys for de-
sired spindle speed.
8. Push adjustment lever backward with moderate
force to re-tension V-belt, then re-tighten two lock
levers to secure motor
9. Replace two belt housing side covers before
re-connecting mill to power
Fig. 4.4
Belt Tension
Lever
Page 15 Instructions Manual for BM-23A (M595D) 12/02/2018