Powermatic DDS-225, DDS-237 Maintenance Checklist, Troubleshooting, Performance Problems

Page 19

Maintenance Checklist

Note: See also the Maintenance section on page 16.

ˆWork area around machine marked off clearly.

ˆNon-skid floor strips in area where operator normally stands.

ˆInspect entire machine for loose bolts, nuts, screws. Tighten and replace as necessary.

ˆClean conveyor and drum areas, removing sawdust and chips with compressed air or a soft bristle brush. Remove gum and pitch from metal areas with oven cleaner.

ˆLubricate chain and check tension.

ˆCheck belt condition - replace as needed. Dress with paraffin. Check belt tension.

ˆCheck motor for loose wiring and sawdust congestion.

ˆPulleys tight and in line.

ˆCheck bearings. Replace any bad or suspect bearings immediately.

Troubleshooting

Performance Problems

Problem

Abrasive belt glazes

Work burns

Abrasive belt burns, clogs quickly

Excessive abrasive belt replacement

Sanding marks on workpiece

Poor sanding quality

A slight taper across the sanded face of the workpiece

Conveyor table hard to move, or tends to bind on the leadscrews

Possible Cause

Solution

 

 

 

 

Wood is wet or gummy

No cure. Use different stock

 

 

Wrong grit

Use coarser grit for stock removal

 

 

Biting too deep

Adjust for slight sanding action and

 

make repeated passes

 

 

Biting too deep

Reduce cut and make multiple passes

 

 

Abrasive belt too coarse for finish

Use proper grit for finish sanding

required

 

Sanding across the grain

When surface sanding, use very fine

 

abrasive belt then finish by hand,

 

working in direction of grain.

 

 

Abrasive belts worn

Replace abrasive belts

Abrasive belts not tight on drum

Re-wrap and properly tighten

 

abrasive belts.

 

 

Height of rear drum has not been

Make drum setting equal both ends

adjusted evenly on both ends

 

Conveyor table not parallel to drums

Correct table parallelism

 

 

Leadscrews not greased

Lubricate leadscrews

Table not parallel

Correct table parallelism

 

 

19

Image 19 Contents
Dual Drum Sander More Information Warranty and ServiceTable of Contents Page Page Dust Port Locations Features700 SpecificationsUnpacking Shipping ContentsDust Ports AssemblyHandwheel Assembly Electrical ConnectionsDisconnect machine from power source Abrasive Paper InstallationDrum Height AdjustmentsTable Height Pressure RollersTable Parallelism Corrective action Lead Screw Thread ClearanceDrive Belts Conveyor BeltChanging Belts Pulley AlignmentDrums are heavy use an assistant to change belts Stock Feeding Angle MaintenanceOperations Basic OperationFace Frames & Raised Panel Doors AbrasivesEdge Sanding Sanding Imperfect StockSwitch Lock Problem Maintenance ChecklistTroubleshooting Performance ProblemsMechanical & Electrical Problems Parts DDS-225 Sander Drum Assembly DDS-225Index No Description Size Qty Index No. Part No Description Size Qty Conveyor Assembly DDS-225 Screw Motor & Cabinet Assembly DDS-225 DDS225-WL Motor & Cabinet Assembly DDS-225 Gearbox Assembly DDS-225 Gearbox Assembly DDS-225 Drum Parts DDS-237 Sander Drum Assembly DDS-237DDS237-154B Conveyor Assembly DDS-237 DDS237-SBR Motor and Cabinet Assembly DDS-237 DDS237-334 Shoulder Screw DDS237-385 Gearbox Assembly DDS-237 Gearbox Assembly DDS-237 Ready-To-Cut Abrasive Strips Optional AccessoriesDescription Normal Use DDS-225 Sander Wiring DiagramsDDS-237 Sander 7.5HP, 1Ph DDS-237 Sander 10HP, 3Ph Reversing Walter Meier Manufacturing Inc
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