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off when tension is released.
8.5.5.
Release the tension by slowly revolving the hand wheel counter clockwise.
8.5.6.
Remove the blade.
8.6.
REPLACING THE BLADE
8.6.1.
Make sure the outer guide bearings are loose.
8.6.2.
Make sure the teeth are pointing in the right direction.
8.6.3.
Place the blade around the wheels and between the guide bearings.
8.6.4.
Hold the blade in position and apply tension. Blade tension generally must be
set at 25000 psi for hard back blades, and 35000 psi for bi-metal blades.
Use tension scale (fig.19).
8.6.5.
Push the blade against the wheel flange.
8.6.6.
Tighten the blade until it is properly tensioned. A properly tightened blade will ring
slightly when the back of the blade is plucked (like a string of an instrument).
8.6.7.
Adjust the outer guide bearings.
8.6.8.
Check for proper tracking (See Tracking Adjustment 7.2).
9. TROUBLESHOOTING
PROBLEM
Excessive blade breakage and/ or teeth
ripping from the blade.
Premature blade dulling.
Unusual wear on side or back of blade.
Motor overheating.
Bad, crooked or rough cuts.
Blade twisting.
© Jack Sealey Limited
CAUSE
Workpiece is loose in the vice.
Incorrect speed or feed.
Blade is too course.
Workpiece is too course.
Incorrect blade tension.
Blade is in contact with workpiece when
saw is started.
Blade is rubbing on the wheel flange.
Blade guides are misaligned.
Blade is too thick.
Blade is too course.
Incorrect speed - too fast.
Inadequate feed
Hard spots or scale on the workpiece.
Blade is twisting.
Insufficient blade tension.
Blade is sliding.
Blade guides are worn.
Blade guides are misaligned.
Blade guide brackets are loose.
Blade tension too high.
Drive belt tension too high.
Blade too coarse or too fine.
Gears need lubrication.
Blade is binding in the cut.
Feed pressure too great.
Blade guides are misaligned.
Inadequate blade tension.
Blade is dull.
Incorrect speed.
Blade guides too far from workpiece.
Blade guide assembly is loose.
Blade is too coarse.
Blade is binding in the cut.
Blade tension is too high.
Original Language Version
SOLUTION
Clamp the workpiece securely.
Adjust the speed or feed to suit the workpiece.
Replace with a finer blade.
Use the saw at slower speed and use a finer blade.
Adjust blade tension.
Place blade in contact with the workpiece only after
the saw has started.
Adjust tracking.
Adjust blade guides.
Use correct blade.
Replace with a finer blade.
Reduce blade speed.
Adjust hydraulic feed control and/or bow weight.
Reduce blade speed, increase feed pressure.
Replace blade and adjust to the correct tension.
Increase blade tension.
Increase blade tension and reduce blade speed.
Replace blade guides.
Adjust guide pivots.
Tighten blade guide brackets.
Reduce blade tension.
Reduce drive belt tension.
Use a blade more suitable for the workpiece.
Lubricate the gears.
Decrease feed and blade speed.
Adjust hydraulic feed control and/or bow weight.
Adjust blade guides.
Increase blade tension.
Replace the blade.
Adjust the speed.
Adjust guides.
Tighten the guide assembly.
Use a finer blade.
Adjust hydraulic feed control to decrease feed
pressure.
Decrease blade tension.
SM353CE.V3 Issue 1 23/01/20
fig.19
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