Adjustingbladeguidebearings; Adjusting Bow Weight - Jet HVBS-7MW Operator's Manual

Adjusting Blade Guide Bearings
1. Disconnect the machine from the power
source.
2. Raise the arm to thevertical positionand lock in
place by turning offthe the hydrauliccylinder
valve.
3. Loosen the hex cap screw (A,Fig. 16) and
adjust assembly so that the back rollerbearing
is approximately .003" - .005"from the back of
the blade.
4. Turn nut (B, Fig. 16) to adjust the eccentric
bearing snug to the blade. Blade should still
move up and down freely when grasped as in
Fig. 17. Warning!
Make sure power is
disconnected and hands are protected
before handling blade. ~e sure that the blade
teeth do not interfere with the roller bearings.
5. Repeat for the other blade guide assembly.
6. Connect machine to the power source.
Adjusting Bow Weight
Bowweight is one of the most important adjustments
of the saw. If the bow weight is not set properly, one
can expect poor performance, crooked cuts, tooth
stripping, stalling, and the blade popping off the
blade wheels. The hydraulic feed rate unit will not
compensate for improper bow weight. Bow weight
has been set at the factory and should not need
adjustment. If adjustment is necessary:
1. Disconnect the machine from the power
source.
2. Turn
the hydraulic cylinder valve on and place
the the saw arm in horizontal position.
3. Turn feed rate valve on hydraulic cylinder
counter-clockwise until it stops.
B
Fig.16
Fig.17
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