Grizzly G9249 - Manual (Page 53)

g9249 12" x 37" Belt drive gap Bed lathe
-51-
Tensioning/
Replacing V-Belts
Adjusting Motor V-Belt
Tools Needed Qty
Wrench 18mm ................................................... 1
To adjust the motor V-belt tension:
1. disConneCt lAthe FroM poWer!
2. push the belt tensioning lever back to tension
both belts (see figure 90).
figure 90. V-belt tensioning lever.
Belt
tensioning
lever
3. From the back of the lathe, check the motor
V-belt deflection when moderate pressure is
placed on the V-belt mid-way between the
pulleys—it should be approximately
1 ⁄
2
" (see
figure 91).
EjaaZn
9Z[aZXi^dc
EjaaZn
figure 91. Checking motor V-belt tension.
4. to adjust the motor V-belt tension, loosen
the jam nuts shown in figure 92, then adjust
the tensioning hex bolt to raise or lower the
motor.
5. re-check the V-belt deflection, and, when
you are satisfied with the setting, re-tighten
the jam nuts.
Replacing Motor V-Belt
Tools Needed Qty
hex Wrench 5mm .............................................. 1
To replace the motor V-belt:
1. disConneCt lAthe FroM poWer!
2. pull the belt tensioning lever forward to
release V-belt tension, then roll the motor
V-belt off the motor pulley.
3. raise the headstock cover.
figure 92. Motor V-belt tensioning hex bolt and
jam nuts.
tensioning
hex Bolt
Jam nuts