DeWalt D55146 User Manual

Troubleshooting Guide
This section provides a listofthe 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 DEWALT 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 .......................................................................................................................... 6,16,17
Pressure reading on the regulated pressure gauge drops when an accessory is used ........... 7
Compressor is not supplying enough air to operate accessories .............................................. 8,9,10,11,12,15
Regulator knob has continuous air leak .................................................................................... 13
Regulator will not shut off air outlet ........................................................................................... 13
Moisture in pump crankcase ...................................................................................................... 14,18
Motor will not run ....................................................................................................................... 11,19,20,21,22,23,24
Troubleshooting Codes
CODE POSSIBLE CAUSE 'POSSIBLE SOLUTION
' pressure switch does not shut off m0t0r when compressor Set the on/off Switch t0 OFF, if the unit doeS not shut
reaches cut_0ut pressure Off contact a DEWALT fact0iy service Ceniei or a DEWALT
! authorized service center.
2 Pressure switch cut-out too high Contact a DEWALT factory service center or a DEWALT
authorized service center.
3 Tube fittingS are n0t tight enough Tighte_ fittings Where air can be heaid esCaPing. Check
: fittings with soapy water solution. Do Not Overtighten,
17

DeWalt D55146 Specifications

General

Quantity per pack	1 pc(s)