Troubleshooting - Central Pneumatic 66881 Set Up And Operating Instructions Manual

problem
Sander will not 1. No compressed air supply.
start.
2. Shut-off Valve is closed.
3. Insufficient pressure on the
4. Air pressure too low.
5. Regulator set too low.
Sand Paper Disc 1. Air pressure too low.
not orbiting, or
2. Insufficient compressed air
orbiting slowly.
3. Regulator Set adjusted too
4. Leaks in Air Hose.
Water flow low or 1. Water Flow Control improperly
nonexistent
2. Clogged Strainer.
3. No water in supply tank.
Sander does 1. Sand paper disc too fine.
not remove
2. Using wrong tool for the job at
residue from the
workpiece, even
after repeated brief
3. Water Flow Control improperly
attempts.
4. Fill supply tank.
Severe air 1. Cross-threaded housing
leakage.
(Slight air leakage
is normal,
2. Loose housing.
especially on older
tools.)
3. Damaged valve or housing.
4. Dirty, worn or damaged valve.
Sander does not 1. Worn sandpaper.
remove adequate
2. Fine grit sandpaper.
material
Follow all safety precautions whenever diagnosing or servicing the
tool. disconnect air supply before service.
SKU 66881

troubleshooting

possible causes
Paddle.
supply.
low.
set.
hand.
set.
components.
For technical questions, please call 1-800-444-3353.
likely Solutions
1. Connect Sander to a compressed air supply.
2. Open Shut-off Valve.
3. Press harder on Paddle.
4. Set air compressor regulator to 90 PSI.
5. Adjust regulator setting.
1. Squeeze harder on the Paddle.
2. Set air compressor regulator to 90 PSI.
3. Adjust Regulator Set for a higher orbital
speed.
4. Check Air Hose joints for leaks.
1. Adjust Water Flow Adjuster for increased
water flow.
2. Remove Strainer and clean.
3. Fill supply tank.
1. Use a more coarse sand paper disc.
2. Do not continue sanding to avoid damaging
workpiece surface. Use another method to
remove residue.
3. Adjust Water Flow Adjuster for increased
water flow.
4. Fill supply tank.
1. Check for incorrect alignment and uneven
gaps. If cross-threaded, disassemble and
replace damaged parts before use.
2. Tighten housing assembly. If housing cannot
tighten properly, internal parts may be
misaligned.
3. Replace damaged components.
4. Clean or replace valve assembly.
1. Replace sandpaper/
2. Use coarser grit sandpaper.
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