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Specifications - Craftsman 351.243981 Operator's Manual

18" 3 speed band saw

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EXTENSION C ORDLENGTH
WireSize
A.W.G.
Upto 50ft................................
16
50-100 ft..................................
14
NOTE: U sing extension c ordsover100ft.longis not
recommended.
Referto Figures 5,6,7, 8, 9 and10.
The18",3-speed vertical b and sawforcuttingferrous
andnon-ferrous metals. Thebandsawfeatures a uni-
tizedframe of welded steelconstruction a nda solid
castironworksurface toensure durability.
Table tiltsto 45° andhasa mitergaugeandprecision
machined ripfenceforperforming m anydifferent o pera-
tions.Eighteen inchbalanced c astaluminum wheels
withballbearings a ndrubber t readsaccommodate
bladewidthsupto 1".
A convenient tensioning a ndtracking mechanism
assures thatchanging b ladesis notcumbersome. Saw
canalsoaccommodate bladewidthsupto 1"formany
typesofcuts.
SPECIFICATIONS
Depth of throat ..........................
17%"
Maximum depth of cut ......................
11"
Table size ............................
18 x 19"
Table tilt .............................
0 to 45 °
Wheel diameter ...........................
18"
Blade length ............................
133"
Blade width ...........................
_6 to 1"
Blade speeds ...............
80, 150 and 200 FPM
Overall dimensions ................
75 x 32Y2 x 22"
Motor ........................
Part No. 6501.00
........................
TEFC, 1 HP, 1800 RPM
Blades .........
No. 26657, _/4"Carbon Blade, 10 TPI
...............
No. 22658 _/4"Carbon Blade 14TPI
CAUTION:
Always observe the following safety
precautions:
Make sure that blade guides and thrust bearings are
positioned and adjusted correctly to prevent side-
ways and rearward movement of the blade. Adjust
upper guide to just clear workpiece.
Check to make sure blade is tensioned and tracking
properly. Do not over tension the blade in order to
prevent premature blade wear and breakage. Avoid
under tensioning to eliminate back and forth, side to
side blade movement as it cuts.
Use proper blade and speed for the cutting operation.
After turning saw on, allow blade to come to full
speed before attempting any cutting operation.
Support workpiece properly and use a smooth
steady feed to guide work through the cut. Use push
sticks or push blocks when required.
Keep hands away and out of line with moving parts.
Always wear eye protection.
REMOVING
BLADE
Refer to Figures 7 and 9.
WARNING:
Disconnect band saw from power source
when changing or adjusting blades. Wear leather gloves
when handling band saw blades. Never wear gloves
when operating saw.
Loosen hex nut (Figure 7, Key No. 30) and rotate
handwheel (Figure 7, Key No. 23) to release blade
tension. Be careful; blade may spring from saw when
tension is released. Remove table stud (Figure 9,
Key No. 15), take out the released blade and replace
with another blade.
INSTALLING
BLADE
Although many of the adjustments may not be altered
when blade is removed, every adjustment should be
checked prior to using a newly installed blade.
Follow safety precautions every time saw is operated.
Make sure blade teeth are pointing down towards
table. Turn blade inside out if necessary.
Slip new blade into table slot and over upper and
lower blade wheels and center blade on blade
wheels. Slide blade in between blade guides.
Replace table stud.
Tension and track blade as described in the following
sections.
TENSIONING
BLADE
Refer to Figure 7.
Tension blade by rotating handwheel (Key No. 23). Be
sure blade guides do not interfere with blade path.
Tighten blade until it is properly tensioned.
A properly tensioned blade will ring slightly when back
of blade is plucked (like a string on an instrument).
NOTE: Check tension of new blade. Additional tension
may be required after a few minutes of operation.
TRACKING
BLADE
Refer To Figure 7.
Track blade after it has been tensioned. A change in
blade tension will affect wheel alignment.
Proper tracking is achieved when drive and idler
wheels are aligned. Knob (Key No. 29) is used to tilt
tracking bar (Key No. 13) and align blade wheels.
Loosen nut (Key No. 30) which locks tracking knob
(Key No. 29). Turn idler wheel (Key No. 7) by hand
and observe how blade rides on wheels.
If blade rides away from cabinet, turn knob clockwise
to tilt idler wheel up.
If blade rides into cabinet, turn tracking knob coun-
terclockwise.
6

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