®
P27
LATHES
12.10
Replacing the Belt
VL200, VL240, VL300
All Vicmarc
®
lathes are factory installed with high quality
belts, which give many years of service before requiring
replacement.
Removing the Belt:
Make sure that the lathe is turned off at the
mains switch.
Remove safety ring.
Measure the distance between the largest pulley and
the inside of the headstock so that the pulley can be
re-installed at the exact same original position.
Loosen the belt as per changing the belt ratio.
Loosen the grubscrews on the rear spindle adaptor.
Engage the indexing pin and unscrew the handbrake
wheel anti-clockwise and remove.
Loosen the three grub screws in the thrust ring and
remove.
Loosen the grub screw on the headstock pulley with a
4mm allen key.
From the hand wheel side, lightly tap the spindle with
a rubber mallet (or nylon hammer) making sure that it
stays horizontal. It is important to make sure that the
spindle keyway is in the vertical position so that it can
pass through the keyway opening. (see picture 5).
Ensure that the taper roller bearing on the handbrake
wheel side does not fall out.
Remove the spindle ensuring that the pulleys are not
allowed to drop (caution the pulleys are cast iron and
are heavy).
Place the spindle in a clean place and pull out the
pulley wheels.
The belt can now be removed, making way for a
new belt.
Re-Assembly
Sit the new belt on the pulley & place back into headstock.
When re-inserting the spindle, make sure that the key on
the spindle lines up with the keyway to avoid any damage.
Line up the pulley back in its original position and re-
tighten the grub screw in the middle pulley.
Screw the thrust ring back on until there is no axial
play in the spindle and tighten the grub screws.
Screw the handbrake wheel back on.
Hook belt around the motor pulley and tighten the belt
adjustment. Check the belt deflection to ensure the
correct tension. (see page 17)
Once assembled replace all covers, disengage the
indexing pin and turn spindle by the hand wheel to
check for hard spots.
Turn the machine on at the mains switch and run the
machine at moderate Rpm (approx 1500 rpm) for five
minutes to check the operation of the machine.
If the pulley housing gets hotter than luke warm to touch
after 5 minutes of operation then stop the machine, loosen
the thrust ring grub screws and unscrew the thrust ring
approx 2 to 5 degrees then re-tighten the grub screws.
12. VL200/240/300 LATHES
5.
6.
7.
1.
2.
4.
3.
1.
3.
5a.
6.
2.
4.
5.
7.
12
.
V
L200
,
240
,
30
0
LA
TH
ES
