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Craftsman 137.224120 User Manual

Craftsman 137.224120
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LOWER BLADE GUIDES AND SUPPORT BEARING
To avoid injury, turn the switch OFF and disconnect the
saw from the power source before making any
adjustments. NEVER make adjustments with the machine
running.
NOTE: Make sure the blade is tensioned and tracking
properly.
NOTE: The lower blade guides and support bearings
should always be adjusted after the blade is tensioned, the
tracking is adjusted, and the upper blade guides and upper
support bearings are properly adjusted.
Blade guides {FIG. P)
1. Loosen both front set screws (1) with a hex wrench.
2. Move the guide (2) as close to the sides of the blade (3)
as possible without pinching it.
3. U,Cing the feeler gauge, measure the spaces between
the guide and the blade. Adjust to 0.02".
4. Tighten the hex screws.
5. Loosen the side set screw (4). Move the guide
support bracket (5) in or out until the guides are at
least 1/32" behind the saw teeth. Tighten the screw.
FIG. P
3 .......
i
i j
FIG, Q
8
f
7
6
PULLEY ALIGNMENT {F}G. R, S)
This alignment is adjusted at the factory and should not
need to be readjusted. However, if there are belt tracking
problems do the following:
1. Pull the cover knobs to open the wheel covers. (F}G. R)
2. Loosen and remove the lower blade wheel hex head
bolt (1) and flange (2) with an adjustable wrench.
3. Loosen the blade tension by turning the blade tension
knob (3) counterclockwise, following the steps in
"Blade Tension".
4. Remove the saw blade (4) from the lower blade
wheel (5).
5. Remove the lower blade wheel from its shaft.
7. Remove the v-belt (6) from the motor pulley (7).
(FIG. S)
8. Place a straight edge in the front groove of both
pulleys.
9. tf the side edges of the pulleys are not aligned, loosen
the motor pulley hex socket screw (8).
10. Adjust the motor pulley in or out on the motor shaft to
align the side edges of both pufteys.
1t. When aligned, tighten the hex socket screw.
12. Place the v-belt on the motor pulley and saw pulley.
Check the belt tension and adjust.
t3, Move the idle wheel (9) to press the V-belt, by turning
the handle (10).
14. Replace the blade wheel and blade.
FIG. S
10
To avoid injury, the belt tension, the blade tension, tracking,
and upper and lower guides and bearings must be properly
adjusted before operating the ba_ndsaw.
BELT TENSION {FIG. T)
The belt tension may need adjusting if the belt is replaced
(See MAINTENANCE Section), or the blade speed is
changed (See OPERATION Section).
1. Loosen the idle wheel by turning the idle wheel handle.
2. Loosen the motor mount nuts (1) and slide the
motor (2) sideways to increase or decrease the belt
tension.
3. The belt tension is correct when there is a 1/2"
deflection if the belt is pressed in the center between
pulleys.
4. When positioned properly, tighten the motor mount
nuts.
5. Tighten the idle wheel handle to press the idle wheel
against the V-belt.
NOTE: Do not overtighten the motor mount nuts,
tighten just enough to maintain the belt tension.
\
F_G. T
t_) frfd/I
!
Support bearing (FIG. Q)
6. Loosen the bearing set screw (6) with the hex
wrench.
7. Move the blade support bearing shaft (7) in or out until
the support bearing (8) is 1/64" behind the saw blade.
8. Tighten the bearing set screw.
9. The blade support bearing should be adjusted so the
vertical back edge of the blade (3) overlaps the front
face of the support bearing approximately 1/t6 to t/8".
2
t
5
6. Loosen the idie wheel (9) using the idle wheet handle (I0)
on the back of the band saw.

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Craftsman 137.224120 Specifications

General IconGeneral
Model Number137.224120
TypeCircular Saw
Power SourceCorded Electric
Voltage120V
Blade Diameter7-1/4 inches
Arbor Size5/8 inches
Bevel Capacity45 degrees
Depth of Cut at 45 degrees1-3/4 inch

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