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For Machines Mfg. Since 8/09 | T R O U B L E S H O O T I N G | Model SB1021/SB1022 |
Symptom
Possible Cause
Possible Solution
Machine stalls | 1. | Too much pressure when feeding | 1. | Reduce pressure when feeding workpiece. |
or slows when |
| workpiece. |
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operating. | 2. | Motor is wired out of phase | 2. | Swap two power incoming power leads (see Page |
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| (SB1022 only). |
| 47). |
3.Workpiece is warped and binding 3. Fabricate a jig for better workpiece control. blade.
4.Blade is not correct for material 4. Use the correct blade for the operation. Refer to
| being cut. |
| Blade Selection section beginning on Page 20. |
5. | Belt(s) slipping. | 5. | Tension/replace belt(s); ensure pulleys are aligned. |
6. | Motor overheated. | 6. | Let cool, clean motor, and reduce workload. |
7. | Run capacitor at fault (SB1021 | 7. | Test/repair/replace. |
| only). |
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8.Pulley or sprocket slipping on shaft. 8. Replace pulley and key or set screw. Replace shaft
if worn.
9.Motor connection wired incorrectly. 9. Review wiring diagram on motor cover; correct wire connections.
10.Contactor has poor contacts.10. Test all legs for power, test field coil and replace if
at fault.
11.Centrifugal switch at fault (SB1021 11. Adjust/replace centrifugal switch if available. only).
| 12. | Motor at fault. | 12. | Test for shorted windings, bad bearings and repair | |
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| or replace. | |
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Handwheel has | 1. | Leadscrew is dirty or lacks proper | 1. | Clean and lubricate the leadscrew (see Page 33). | |
excessive backlash, |
| lubrication. |
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endplay, binds, or | 2. | Pinion gears out of adjustment. | 2. | ||
is difficult to move. | |||||
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| Page 37). | ||
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3.Bearing or leadscrew collar is worn 3. Replace bearing or readjust leadscrew collar (see
or loose. | Page 37). |
4.Linkage bolts, pins, and holes are 4. Replace linkage bolts, pins, and
loose or worn. | pin holes. |
5.Leadscrew or leadscrew nut worn. 5. Replace leadscrew or leadscrew nut.
Cuts are not square | 1. | Pointer or scale not calibrated or | 1. | Zero table to blade and realign scale pointers (see | |
or the intended |
| loose table. |
| Page 35). Tighten any loose fasteners. | |
angle is incorrect. | 2. | Table guide post is loose or out of | 2. | Tighten any loose hardware or lock levers. Align the | |
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| alignment. |
| guide post (see Page 36). | |
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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. | |
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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. | |
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Welder is | 1. | Operator error. | 1. | Use welder as outlined in operations section and | |
inoperative or |
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| practice on scrap blades (see Page 28). | |
welds poorly. | 2. | Wiring or welding switch at fault. | 2. | Repair wiring or replace welding switch. | |
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| 3. | Welder transformer at fault. | 3. | Replace welder transformer. | |
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