Southbend SB1040, SB1041 owner manual Dull blade missing teeth Replace blade

For Machines Mfg. Since 8/09 TR O U B L E S H O OTI N G Model SB1040/SB1041

Symptom

Possible Cause

Possible Solution

Blade tracks	1.	Feed rate is too fast.	1.	Reduce feed rate, or decrease blade TPI.
incorrectly, or	2.	Blade is not tracking correctly.	2.	Adjust blade tracking (see Page 41).
comes off wheels.
	3.	Blade is bell-mouthed.	3.	Install new blade, and regularly remove tension
				from blade when not in use (see Page 27).
	4.	Blade is dull, wanders, and gets	4.	Replace blade, re-secure the workpiece from
		pinched in the cut.		shifting.
	5.	Rubber tire on wheel is damaged,	5.	Replace or dress rubber tires.
		glazed, or worn.
	6.	Blade tension is too loose.	6.	Increase blade tension (see Page 27).
	7.	Blade guides need adjustment.	7.	Adjust blade guides (see Page 30).
	8.	Incorrect blade for bandsaw.	8.	Install correct blade for machine.
	9.	The blade has insufficient support.	9.	Tighten the blade guide as close to the workpiece as
				possible.
	10.	Wheel tires are loaded with metal	10.	Clean wheel tires.
		shavings.
The cut is crooked,	1.	Blade spinning backwards due to	1.	Swap two power incoming power leads (see Phase
the blade wanders,		machine being wired out of phase		Polarity on Page 20).
slow cuts, or shows		(SB1041 only).
overheating on one	2.	The feed pressure is too high.	2.	Decrease the feed rate.
side of the cut or
	3.	Too much side pressure when	3.	Feed workpiece straight into the blade.
the blade.
		feeding workpiece.
	4.	Blade is loading up.	4.	Install a blade with more suitable TPI or different
				style of teeth.

5.Blade installed backwards.5. Check blade rotation as described in “test run” and reverse blade if necessary.

6. Dull blade; missing teeth. 6. Replace blade.

7.Blade too wide for size of radius 7. Install a smaller width blade, or increase blade

being cut. tension (see Page 27).

8.The blade speed is wrong.8. Adjust feed rate and cutting speed as required.

9.The blade tracking is wrong.9. Adjust the blade tracking (see Page 41).

Grinder does not	1.	Wiring or ON/OFF switch at fault	1.	Repair wiring or replace grinder switch.
work.	2.	Motor at fault.	2.	Replace motor.
Work lamp or	1.	Bulb, wiring, or switch at fault.	1.	Replace bulb, repair wiring, replace switch.
welding lamp does	2.	Transformer is at fault.	2.	Replace transformer.
not work
Welder is	1.	Operator error.	1. Use welder as outlined in operations section and
inoperative or				practice on scrap blades (see Page 32).
welds poorly.	2.	Wiring or welding switch at fault.	2.	Repair wiring or replace welding switch.
	3.	Welder transformer at fault.	3.	Replace welder transformer.

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