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SYMPTOM
Excessive blade breakage
!Premature blade dulling
POSSIBLE
CAUSE(S) ................
1. Material not secure on table
2. incorrect speed or feed
3_Blade too coarse for material
4_incorrect blade tension
5, Teeth in contact with work before
sawing
6, Blade rubs on wheel flange
i7. Misaligned guides
'8, Blade too thick for' wheel diameter'
9..Cracking at weld
1, Blade too coarse
2. Excessive blade speed
3_Inadequate feed pressure
4.,Hard spots or- scale in or on
material
5.,Work hardening of workpiece
6. Blade installed backwards
7. Insufficient blade tension
Crooked cuts
1, Work not square
Rough cuts
Blade is twisting or unusual
wear on side/back of blade
Teeth ripping from blade
Motor running too hot
CORRECTIVE ACTION
il. Squarely place work on table
2. Check Blade Speed (Figure 5, page 8)
3, Usefiner
pitch blade .
_
.
.•
4, Tension blade properly; see "Operation"
"
5, Place blade in contact with work after saw is
started and has reached full speed
6_Adjust wheel alignment properly
7. Adjust blade guides properly
8o Use thinner blade
9_ Replace blade
2,.Rate of feed too great
3_Blade guides not adjusted properly
4_Insufficient blade tension
4_
5, Upper blade guide too far
5.
from workpiece
6,,Dull blade
6o
7. Incorrect speed
7,_
8oBlade guide assembly loose or
8.
blade thrust bearing loose
1. Too much speed or feed
1_
2._ Blade too coarse
2.
1,,Cut is binding blade
t_
2. Blade guides or bearing worn
2.
3. Blade guides or bearings not
3_
adjusted properly
4, Blade guide brackets loose
4, Tighten properly
1, Teeth too coarse for work .........................
1. use blade wii'h finer teeth
2_Rate of feed too great
2. Decrease feed rate
3oVibrating wor kpiece
3.
4, Teeth filling with material
4,
Io Blade tension too great
1.
2. Blade too coarse for' work
2.
(typical when cutting pipe)
3, Blade too fine for work (typical
when cutting slick or soft material)
4, Excessive dirt and chips
1. Use finer tooth blade
2. Try lower speed
3oGently increase pressure
4.. Reduce speed; increase rate of feed for
scale and change blades for hard spots
5. Increase rate of feed
6. Remove blade, twist inside out and reinstall
blade
7. Tension blade properly; see "Operation"
1 _Use rip fence; adjust tilt of table at 90 ° to
blade
2. Reduce rate of feed
3. Move both guide blocks within .002" from
blade (use gauge)
Tension blade properly; see "Operation"
Adjust upper guide to just clear workpiece
by ¼"
Replace blade
Check Blade Speed; see Figure 5, page 8 for
recommended
speeds
Tighten blade thrust bearing within .002"
behind blade back
Reduce speed or feed
Replace with finer blade
Decrease feed pressure
Replace
Adjust blade guides; see "Operation"
Hold workpiece firmly
Use blade with coarser teeth
Reduce tension on blade
Use blade with finer teeth
3, Use blade with coarser teeth
Saw will not start
Loose electrical connections
Have qualified electrician check electrical
connections
10
4oClean thoroughly; vacuum motor and speed
change mechanism
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