6.
Procedure For Changing Speed
7.
Procedure For Changing Belt
1.
Switch off and disconnect plug from power supply.
2.
Open the guard.
3.
Release the motor plate ratchet handle.
4.
It is important to handle the motor pulley to release the belt
tension since the motor casing may become very hot.
When moving between middle and low speed, use your left hand
to pull the motor pulley towards you and move the belt to the
appropriate position with the right hand.
When moving between middle and high speed, use your right
hand to pull the motor pulley towards you and move the belt with
the left hand.
5.
Allow the motor to fall back into position.
6.
Turn the main spindle by hand to ensure the proper bedding
of the belt.
7.
Apply slight downward pressure to the motor pulley, and
tighten the motor plate ratchet handle.
8.
Close and secure the guard.
WARNING
It is normal for the motor to run hot, therefore care should be taken to
avoid touching the motor particularly when changing speed.
WARNING
Ensure belt guard is in place and locked before using lathe. Loose
items, clothing or hands may enter opening and become entangled in rotating parts. Serious injury could occur.
Speed Chart
Speed
Motor Main
Spindle
min-1 (RPM)
Pulley
Pulley
450
4
8
950
3
7
1500
2
6
2000
1
5
4
3
2
1
8
7
6
5
MOTOR SPINDLE
MAIN SPINDLE
1.
Switch off and disconnect plug from power supply.
2.
Ensure that the thread protector is on the spindle nose.
3.
Open the belt guard.
4.
Remove the locking grub screw from the spindle pulley.
Unscrew the bottom grub screw a few turns so that the pulley
will slide freely along the full length of the spindle.
5.
Remove the socket head cap screw and washer from the left
hand end of the spindle.
6.
Obtain a piece of brass or similar material softer than mild
steel, of a diameter between 11mm (7/16") and 13mm (1/2"),
place at the left hand end of the spindle and carefully tap with a
hammer, driving the spindle through to the right until it becomes
sufficiently free to allow the belt to be changed.
7.
Change the belt.
8.
If the large bearing is still in the headstock then the spindle
should be tapped back in position using a piece of wood
between the hammer and the thread protector. If the large
bearing has come out with the spindle, then it should be
replaced by tapping the outer ring only, tapping round the ring to
ensure it seats squarely. If the small bearing has been pushed
out by the previous operation, then this also should be tapped
back on the outer ring only.
9.
Replace the socket head cap screw and washer (do not over
tighten).
10.
Position the spindle pulley so as to line up with the motor
pulley. Tighten the spindle pulley bottom grub screw, ensuring
that it locates on the spindle flat, then replace the locking grub
screw.
11.
With the belt in position and the guard closed, the machine
should be run for a short time to enable the belt to bed in.
Summary of Contents for DML24X-MK2
Page 10: ...8 Spare Part Identification ...