Assessments - 3, GPA: 3.3
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Facilidade de uso
Hold the cleaning stick against the rotating drum and move it along the drum surface. It is good idea to use a shop brush or air nozzle to remove any cleaning stick crumbs from the drums before resuming sanding operations. Cloth-backed abrasives can be cleaned by soaking in paint thinner, or mineral spirits for 20 minutes to one hour. Then use a nylon brush to remove any buildup. Stretching Abrasive Life Abrasive life can also be increased by removing the abrasive strip from the drum and reversing it. To do this, remove the strip and use what was the trailing end as the starting end on the left (outboard) side of the drum. Reversing the strip will provide a fresh set of cutting edges on the drum. Performax 22-44 Abrasives “Ready-to-Wrap” 24 – 220 Grit, contains 3 precut wraps. Ready-to-Wrap 60-2024 24 Grit 60-2120 120 Grit 60-2036 36 Grit 60-2150 150 Grit 60-2060 60 Grit 60-2180 180 Grit 60-2080 80 Grit 60-2220 220 Grit 60-2100 100 Grit “Ready-to-Cut” 50 – 220 Grit, contains 14 wraps. 24 & 36 Grit contains 10 wraps. Ready-to-Cut (Aluminum oxide) 60-9036 36 Grit 60-9120 120 Grit 60-9060 60 Grit 60-9150 150 Grit 60-9080 80 Grit 60-9180 180 Grit 60-9100 100 Grit 60-9220 220 Grit Ready-to-Cut “Blue” (longer life) 60-8024 24 Grit 60-8080 80 Grit 60-8036 36 Grit 60-8100 100 Grit 60-8050 50 Grit 60-8120 120 Grit 60-8060 60 Grit Conveyor Belt Replacement 2. Thoroughly lubricate the mating surfaces and height adjustment screw. To replace the conveyor belt: 1. Disconnect the machine from the power source. Unplug motor cord from control box. 2. Raise drum to highest position using the handwheel (A, Fig. 16). 3. Remove the belt tension by loosening the take-up nuts (B, Fig. 16). 4. Unscrew the four socket head cap screws (C, Fig. 16) that attach the conveyor and remove the conveyor from the bed. 5. Slide the conveyor belt off of the conveyor and replace with a new belt. Tension Roller Alignment 1. Remove abrasive strip (D, Fig. 17) from drum. 2. Loosen all four bearing hex nuts (E, Fig. 17). 3. This will allow the tension rollers to drop to the lowest position. 4. Lower the sanding drum so it just touches the conveyor bed. 5. Turn the drum height handle one complete revolution to raise the drum. 6. Retighten bearing hex nuts. Tension Roller Pressure Adjustment You can also adjust the spring loaded screws, found on the pressure roller brackets, to increase or decrease roller pressure. If you are having snipe marks at the leading end of the board adjust the outfeed roller pressure. If the snipe mark occurs on the trailing end of the board adjust infeed roller pressure. Drum Height Control Adjustment If the height control mechanism does not operate easily or smoothly, or there is excessive vertical movement or deflection of the drum carriage, perform the following adjustments. 1. Tighten all four lock nuts (F, Fig. 18) and then loosen 1/8 to 1/4 turn. 16 Troubleshooting Guide Problem Possible Cause Solution Conveyor belt does not move. Shaft coupler not attached. Attach shaft coupler. Conveyor rollers run intermittently. Shaft coupling loose. Align shaft flats of gear motor and drive roller and tighten shaft coupling set screws. Abrasive Strip Comes off Drum. 1. Slack in abrasive strip on drum. 2. Abrasive improperly wrapped. 1. Remove slack in strip. 2. Read section on wrapping abrasive strips. Abrasive Strip Loose. 1. Strip caught on inside edge of slot, or on inboard side of drum. 2. Strip not cut properly. 1. Re-adjust strip end in slot and/or trim abrasive edge. 2. Recut and install abrasive strip. Abrasive Loads up Prematurely. 1. Excessive depth of cut. 2. Excessive feed rate. 3. Inadequate dust collection. 4. Inadequate abrasive. 1. Reduce depth of cut. 2. Use slower feed rate. 3. Increase airflow at dust ports. 4. Use open-coat abrasive. Line or Groove in Stock. 1. Inconsistent feed rate. 1. Do not stop or change feed rate. Wood Burns. 1. Abrasive strip overlapped. 2. Excessive depth of cut. 3. Depth of cut excessive for fine grit. 4. Feed rate too slow. 5. Abrasive loaded. 6. Worn abrasives. 1. Re-wrap abrasive strip. 2. Reduce depth of cut. 3. Use coarser grit or reduce depth of cut. 4. Increase feed rate. 5. Clean abrasives. 6. Replace abrasives. Board slips on conveyor belt. 1. Tension rollers too high. 2. Excessive feed rate. 3. Dirty or word conveyor belt. 1. Lower tension rollers. 2. Reduce feed rate. 3. Replace conveyor belt. Sander motors slow or stall 1. Improper conveyor belt tension. 2. Excessive depth of cut. 3. Excessive feed rate. 1. Adjust belt tension. 2. Reduce depth of cut. 3. Reduce feed rate. Rippled sanded surface A. Non uniformly spaced ripples. B. Uniformly spaced ripples. A. Uneven feed rate. B. Conveyor bed flexing or vibration. A1. Conveyor belt slipping, see above. A1. Board slips on conveyor, see above. A1. Power feed gear motor stalls, see above. B1. Reduce depth of cut. B1. Reduce feed rate. B1. Check for loose bolts, shaft coupling set screws or out of balance drum. Gouging of wood...
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