Jet GH-1440, Operating Instructions And Parts Manual

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12.10 Belt replacement and
adjustment
1. Disconnect machine from the power
source (unplug).
2. Open the end gear cover and lower cover on
the headstock side.
3. Take tension off old belts by loosening motor
mount hex nut (A, Fig. 27).
4. Remove belts. Install new belts onto pulleys.
5. Tension by tightening motor mount hex nut
until 8 lbs. force causes approximately 3/4"
deflection on belts.
6. Close end gear door, install cover and connect
lathe to the power source.
12.11 Aligning tailstock to headstock
Before proceeding, headstock should be aligned.
See
sect. 12.7, Headstock Alignment .
1. Fit a 12" ground steel bar between centers of
the headstock and tailstock (Fig. 28).
2. Fit a dial indicator to the compound slide and
traverse the center line of the bar, using the
carriage movement.
3. If tailstock adjustment is needed, alternately
loosen and tighten front and rear hex socket
cap screws (A, Fig. 29).
Figure 27
Figure 28
Figure 29