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Model G0602/G0752 (Mfg. Since 11/12)
-65-
Figure 99. Timing belt and motor mount hex
nuts.
Timing Belt Tension
& Replacement
On the Model G0602 the timing belt transfers
power from the motor to the secondary drive pul-
ley (see Figure 99). If the timing belt becomes
excessively worn or damaged, you will need to
replace it.
Tools Needed Qty
Hex Wrench 5mm .............................................. 1
Open-End Wrench 14mm .................................. 1
Tensioning Timing Belt
1. DISCONNECT LATHE FROM POWER!
2. Open the change gear cover.
3. Loosen the motor mount hex nuts (see
Figure 99).
Note: It may be more convenient to access
the motor mount hex nuts if you first remove
the rear splash guard.
—If there is more than
1
⁄4" deflection when
the belt is pushed with moderate pressure,
loosen the motor mount nuts, lower the
motor, adjust belt tension as required, then
tighten the nuts.
—If the high range V-belt is installed, check
the V-belt tension. Refer to "To tension the
Model G0602 high range V-belt" instruc-
tions on Page 64.
6. Secure the change gear cover.
Replacing Timing Belt
1. DISCONNECT LATHE FROM POWER!
2. Open the change gear cover.
3. Loosen the four motor mount hex nuts (see
Figure 99) then remove the low or high range
V-belt (refer to Replacing V-Belt on Page
64).
Note: It may be more convenient to access
the motor mount hex nuts if you first remove
the rear splash guard.
4. Raise the motor up, roll the old timing belt
off the pulleys and replace it with a new one,
making sure that the belt teeth are seated in
the pulley indents.
5. Re-install the high or low range V-Belt—
depending upon your setup (refer to
Replacing V-Belt on Page 64).
6. Tension the timing belt and V-belt. Refer to
Tensioning Timing-Belt on this page, and
the instructions for tensioning the applicable
V-belt on Pages 63– 64.
Pulley
Deflection
Pulley
Figure 100. Correct timing-belt deflection.
1
⁄4"
4. Lower the motor and re-tighten the mounting
hex nuts.
Timing
Belt
Motor
Mount
Hex Nuts
(2 of 4)
5. Check the timing belt tension: It is correctly
tensioned when there is approximately
1
⁄4"
deflection when it is pushed with moderate
pressure, as shown in Figure 100.