Troubleshooting Guide; Troubleshooting Codes - DeWalt D55371 Guide D'utilisation

Compresseur d'air portatif avec la pompe scellée et lubrifiée

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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

Problem

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, 23

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, 24

Motor shuts off when operating in constant run mode .............................................................. 22, 25

Continuous air leak at pressure relief tube. ............................................................................... 26, 27

CoDe

PossIble CAuse

Pressure switch does not shut off motor when com-

pressor reaches cut-out pressure

Pilot valve does not release pressure when air tank

reaches blow-off pressure

Pressure switch cut-out too high

Tube fittings are not tight enough