DeWalt 66-651 instruction manual Check wiring connection

Page 21

PROBLEM

CAUSE

CORRECTION

Regulator will

Damaged regulator

Replace

not shut off air

 

 

outlet.

 

 

 

 

 

Motor will not

Motor overload protection

Let motor cool off and

run.

switch has tripped

overload switch will

 

 

automatically reset.

 

Tank pressure exceeds

Motor will start automatically

 

pressure switch "cut-in"

when tank pressure drops

 

pressure.

below "cut-in" pressure of

 

 

pressure switch.

 

Extension cord is wrong

Check for proper gauge wire

 

length or gauge.

and cord length.

 

Check valve stuck open.

Remove and clean, or

 

 

replace.

 

Loose electrical connections.

Check wiring connection

 

 

inside pressure switch and

 

 

terminal box area.

 

Possible defective motor or

Have checked by a Trained

 

starting capacitor.

Service Technician.

 

Paint spray on internal motor

Have checked by a Trained

 

parts.

Service Technician. Do not

 

 

operate the compressor in

 

 

the paint spray area. See

 

 

flammable vapor warning.

 

Pressure release valve on

Bleed the line by pushing the

 

pressure switch has not

lever on the pressure switch

 

unloaded head pressure.

to the "off" position; if the

 

 

valve does not open, replace

 

 

switch.

 

Fuse blown, circuit breaker

1. Check fuse box for blown

 

tripped.

fuse and replace as

 

 

necessary. Reset circuit

 

 

breaker. Do not use a fuse

 

 

or circuit breaker with

 

 

higher rating than that

 

 

specified for your particular

 

 

branch circuit.

 

 

2. Check for proper fuse. You

 

 

should use a time delay

 

 

fuse.

 

 

3. Check for low voltage

 

 

conditions and/or proper

 

 

extension cord.

 

 

4. Disconnect the other

 

 

electrical appliances from

 

 

circuit or operate the

 

 

compressor on its own

 

 

branch circuit.

 

 

 

21- ENG

D26195

Image 21
Contents Oil-Free Air Compressor Important Safety Instructions Safety Guidelines DefinitionsHazard Attachments & Accessories Hazard What can Happen HOW to Prevent IT Fire, Inhalation, Damage to Vehicle Surfaces Accessories SpecificationsGlossary Duty CycleTools Required for Assembly AssemblyUnpacking Assemble WheelsLocation of the Air Compressor InstallationVoltage and Circuit Protection Extension CordsKnow Your Air Compressor Description of Operation OperationBefore Starting How to StopHow to Start Before Each Start-UpCustomer Responsibilities To Check Safety Valve Air Filter Inspection and ReplacementTo Drain Tank Service and Adjustments To Replace or Clean Check ValveAir Compressor Pump Intake and Exhaust Valves To Replace Regulator Storage Problem Cause Correction TroubleshootingPressure reading Check wiring connection AIR Compressor Diagram Key Part Number Description Parts ListAIR Compressor Pump Diagram KEY Part Description Limited Warranty