Troubleshooting Guide - DeWalt D55690 Guide D'utilisation

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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

Air leaks .................................................................................................................................... 2

Continuous air leak at unloader valve. ....................................................................................... 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

Compressor is not supplying enough air to operate accessories.............................................. 2, 7, 8, 9, 10, 12, 13

Restricted air intake. .................................................................................................................. 12

Excessive vibration .................................................................................................................... 14, 15

Knocking Noise .......................................................................................................................... 6, 13, 14, 15, 16, 17, 18, 19

Excessive belt wear ................................................................................................................... 13,14,16,19,20

Squealing sound ........................................................................................................................ 13

Engine will not run ..................................................................................................................... 21, 22, 23, 34

Pressure reading on the regulated pressure gauge drops when an accessory is used ........... 24

Regulator knob has continuous air leak .................................................................................... 25

Regulator will not shut off air outlet ........................................................................................... 25

Moisture in pump crankcase ...................................................................................................... 2, 5, 11, 26, 27, 28, 29, 30, 31

Pump will not run ....................................................................................................................... 32

Air tank pressure will not build ................................................................................................... 32, 33