HARVEY Axminster Trade AT220TSM, Manual, Page: 30 / 48

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7.3 Replace the Spindle
(
Fig.45)
1. Push the sliding table and the safe door all the way to the left.
2. Turn the knob (A)
anticlockwise, release the belt (B).
3. Take out the belt.
4. Loosen the screw (D).
5. Push and keep the knob (C) in the position, you can take out the spindle and replace it.
Knob (C) is a safety pin, always ensure that it is in the right position and working well.
Fig.45 Fig.46
7.4 Change the Speed Range
(
Fig.46)
There are two speed ranges of this machine: 1500-5000 and 3000-10000 RPM.
There are 2 step pulleys on both of the spindle and the excessive shaft, the belt can be moved
from one step on the pulley to the other one by releasing the knob (A) as shown in
Fig.45
,
This diagram shows the optimum speed corresponding to a particular tool diameter and cutting
speed as shown in
Fig.46 .