DeWalt D55171, Instruction Manual

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17
English
Troubleshooting Guide
This section provides a list of the more frequently encountered malfunctions, their causes and corrective actions. The operator or maintenance
personnel can perform some corrective actions, and others may require the assistance of a qualified D
e
WALT technician or your dealer.
Problem Code
Excessive air tank pressure-safety valve pops off ......................................................................1, 2
Air leaks .................................................................................................................................... 3
Air leaks in air tank or at air tank welds .................................................................................... 4
Air leaks between head and valve plate .................................................................................... 5
Air leaks from safety valve ......................................................................................................... 6
Knocking Noise .......................................................................................................................... 11
Pressure reading on the regulated pressure gauge drops when an accessory is used ........... 7
Compressor is not supplying enough air to operate accessories.............................................. 8, 9, 10, 11, 12, 21
Regulator knob has continuous air leak .................................................................................... 13
Regulator will not shut off air outlet ........................................................................................... 13
Motor will not run ....................................................................................................................... 11, 14, 15, 16, 17, 18, 19, 20
Troubleshooting Codes
CODe POssIBle CAuse POssIBle sOlutIOn
1 Pressure switch does not shut off motor when com-
pressor reaches cut-out pressure
Set the On/Auto/Off switch to OFF, if the unit does not shut off
contact a D
e
WALT factory service center or a D
e
WALT authorized
service center.
2 Pressure switch cut-out too high Contact a D
e
WALT factory service center or a D
e
WALT autho-
rized service center.
3 Tube fittings are not tight enough Tighten fittings where air can be heard escaping. Check fittings
with soapy water solution.
Do not Overtighten.