Barranca Diamond BD-2003E Pro Series Core Saw - Manual (Page 24)

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BD-2003 CORE SAW TROUBLESHOOTING
BLADE WILL NOT CUT
1. Blade is too hard for material being cut.
Use a softer bonded blade. Select proper blade specification for material being cut.
2. Blade has become dull as a result of being used on too hard a material.
Improper blade specification; blade is too hard for the material being cut. Use a softer bonded blade to
reduce operating stresses.
3. “Dull” blade.
“Open” blade by dressing segment on abrasive block.
UNEVEN SEGMENT WEAR
1. Insufficient water (usually on one side of blade).
Flush out water system and check flow and distribution to both sides of blade.
2. Equipment defects cause the segments to wear unevenly.
Replace bad bearings, worn arbor shaft or misalignment to spindle.
Concrete saws: engine must run smoothly to prevent harmonic vibration.
3. Saw is misaligned.
Check saw head alignment for squareness both vertically and horizontally.
SHORT BLADE LIFE
1. Blade bond or matrix is too soft.
Use a harder matrix blade.
2. Overheating due to lack of water.
Check water feed lines to make sure flow is adequate on both sides of blade.
UNDERCUTTING THE STEEL CENTER
1. Abrasion of steel center due to highly abrasive fines generated during cutting.
Use as much water as possible to flush out fines generated during cutting or use water-retardant cores.
2. Cutting through material into sub-base.
Wear-retardant cores are not always the ultimate solution to eliminating undercutting. Your best
defense is to always provide an adequate water flow to the steel center area immediately
adjacent to the segment. This is especially important when making deep cuts.
ARBOR HOLE OUT-OF-ROUND
1. Blade collar is not properly tightened, permitting blade rotation or vibration on the
shaft.
Tighten the shaft nut with a wrench to make certain that the blade is adequately secured.
2. Blade collars are worn or dirty, not allowing proper blade clamping.
Clean blade collars, making sure they are not worn.
3. Blade is not properly mounted.
Make certain the blade is mounted on the proper shaft diameter before tightening shaft nut.
Ensure the pin hole slides over drive pin. Make sure that drive pin is in pin hole.
4. Loose belt on saw.
Tighten belts. Check to see if arbor on saw is running true.