Changing The Blade Speed; Changing The Drive Belt; The Lower Blade Guide - Craftsman Professional 119.224010 Owner's Manual

The Lower Blade Guide
a. To adjust the lower blade guides, first position the right and left
roller guides relative to the blade by loosening the lock nut F{G.24
and moving the guide carrier until both roller guides are approxi-
mately 1116" behind the gullets of the saw blade
b. Set both roller guides to within 1/32" of the saw blade by
releasing the guide adjusting screw FIG.24 through turning the
micro adjusting knobs on each side of the saw blade. Do not set
the roller guides too close as this wil! adversely affect the life of the
saw blade,
c. Adjust the rear roller guide to be just clear of the back of the saw
blade by unlocking the guide adjusting screw FIG.24 through
turning the micro°adjusting screw.
d. When the correct adjustment is reached, lock the roller guides in
position with _.heguide adjusting screws FIG.24
For the high speed 3340 Pd'min,the belt should be fitted to the rear
pulley on both the motor and bandwheel. (See FIG.26)
For the tow speed 1620 ft/min, the belt should be fitted to the front
pulley on both the motor and bandwhee!. (See FIG.27)
Lock nut X
Guide adjusting
12. CHANGING THE BLADE SPEED
This bandsaw has two blade speeds 1620 feet/min for
hardwoods, some plastics and certain nonferrous metals and
3340 feet/rain for all other timber.
The lower bandwheei has two, integral, multi-vee form pulleys and
the motor shaft has a twin multi-vee form pulley.
The drive belt passes around the bandwheel pulley, the motor
pulley and the tension wheel. The belt tension is released and
applied by using the cranked t_andle. This moves the tension
wheel and allows the speed to be changed.(See FIG.25)
Before changing the speed always make sure the machine has
been unplugged from the electrical supply,
13. CHANGING THE DRKVE BELT
a, Release the saw blade tension by iurning the blade tension
knob on the top of bandsaw counterclockwise.
b. Released the belt tension by using the crank handle.
c. Using C-clip pliers (not provided) remove the retaining dng from
the center of the lower wheel,
d, Carefully slide the lower wheel forward and at the same time
release the saw blade frem this wheel.
e. Remove the old drive belt and fit the new belt. (ensure ribs in
drive belt are seated correctly before reassembling and tensioning
the drive belt)
f. Follow procedures for CHANGING AND ADJUSTING THE SAW
BLADE & TRACKING THE BANDSAW BLADE, before restoring
power to the bandsaw and setting up for use,
Bandwheel pulley
Crankhandle]
Motor pulley
FIG. 25
10