Grizzly G4000 Owner's Manual page 36

A
B
C
1 2 3
Configuring Spindle Belt
there are six spindle speeds available by properly
positioning the spindle belt on the motor pulley (A),
the idler pulley (B), and the spindle pulley (C).
To configure the spindle belt:
1. disConnECt LAthE FroM poWEr.
2. refer to the chart in figure 44 above and
find the spindle speed that is closest to your
calculated spindle speed.
Note: This chart is also on the front of the
headstock. In most cases, the calculated
spindle speed will be between the available
speeds. Use your best judgement when
choosing either the higher or lower speed.
3. open the change gear cover and use figure
45 to identify the motor (A), idler (B), and
spindle (C) pulleys, the spindle belt, and the
belt tensioning pulley.
Belt tensioning pulley
B
A
figure 45. spindle speed pulleys and spindle
belt.
-34-
120 300 400
BC1 BC2 AC1 BC3 AC2 AC3
figure 44. Model g4000 spindle speed configuration chart.
C
spindle
Belt
min
600 1000 2000
4.
release the tension on the spindle belt by
pulling the belt tensioning lever all the way
forward.
5. position the spindle belt onto the pulley
combination as indicated under the selected
spindle speed in the chart, then push the belt
tensioning lever all the way back to apply the
proper tension to the spindle belt.
Note: Use the illustrations in Figure 46 on
the next page to aid in the spindle belt con-
figuration.
6.
Close and secure the change gear cover
before connecting the machine to power.
Example:
you will need to configure the lathe for a spindle
speed of 1200 rpM, as required by Example A
on the previous page.
Step 1: Examine the spindle speed chart to find
that the available speed of 1000 rpM is the clos-
est to the calculated speed.
Step 2: note that the spindle belt configuration
underneath 1000 rpM on the chart is AC2.
Step 3: position the spindle belt on the second
pulley slot on the motor and spindle pulleys.
Note: The pulley slots are counted 1 through 3,
beginning with the outside slot.
Model G4000 (Mfg. Since 8/09)