DeWalt DWFP55126 instruction manual Operation, Maintenance

Extension Cords

If an extension cord must be used, be sure it is:

•a 3-wire extension cord that has a 3-blade grounding plug, and a 3‑slot receptacle that will accept the plug on the product

•in good condition

•no longer than 50' (15.2 m)

•14 gauge (AWG) or larger. (Wire size increases as gauge number decreases. 12 AWG and 10 AWG may also be used. DO NOT USE 16 OR 18  AWG.)

NOTICE: Risk of Property Damage. The use of an undersized extension cord will cause voltage to drop resulting in power loss to the motor and overheating. Instead of using an extension cord, increase the working reach of the air hose by attaching another length of hose to its end. Attach additional lengths of hose as needed.

Voltage and Circuit Protection

Refer to the Specification Chart for the voltage and minimum branch circuit requirements.

WARNING: Risk of Overheating. Certain air compressors can be operated on a 15 amp circuit if the following conditions are met.

1.Voltage supply to circuit must comply with the National Electrical Code.

2.Circuit is not used to supply any other electrical needs.

3.Extension cords comply with specifications.

4.Circuit is equipped with a 15 amp circuit breaker or 15 amp time delay fuse.

NOTE: If compressor is connected to a circuit protected by fuses, use only time delay fuses. Time delay fuses should be marked "D" in Canada and "T" in the US.

If any of the above conditions cannot be met, or if operation of the compressor repeatedly causes interruption of the power, it may be necessary to operate it from a 20 amp circuit. It is not necessary to change the cord set.

OPERATION

Know Your Air Compressor

READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR UNIT. Compare the illustrations with your unit to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference.

Description of Operation (Fig. 2–4)

Become familiar with these controls before operating the unit.

On(I)/Off(O) Switch (D): Place this switch in the On (I) position to provide automatic power to the pressure switch and Off (O) to remove power at the end of each use.

Pressure Switch (not shown): The pressure switch automatically starts the motor when the air tank pressure drops below the factory set "cut-in" pressure. It stops the motor when the air tank pressure reaches the factory set "cut-out" pressure.

Safety Valve (H): If the pressure switch does not shut off the air compressor at its "cut-out" pressure setting, the safety valve will protect against high pressure by "popping out" at its factory set pressure (slightly higher than the pressure switch "cut-out" setting).

Tank Pressure Gauge (I): The tank pressure gauge indicates the reserve air pressure in the tank.

Outlet Pressure Gauge (E): The outlet pressure gauge indicates the air pressure available at the outlet side of the regulator. This pressure is controlled by the regulator and is always less than or equal to the tank pressure.

Regulator (G): Controls the air pressure shown on the outlet pressure gauge. Turn regulator knob clockwise to increase pressure and counterclockwise to decrease pressure.

Cooling System (not shown): This compressor contains an advanced design cooling system. At the heart of this cooling system is an engineered fan. It is perfectly normal for this fan to blow air through the vent holes in large amounts. You know that the cooling system is working when air is being expelled.

Air Compressor Pump (not shown): Compresses air into the air tank. Working air is not available until the compressor has raised the air tank pressure above that required at the air outlet.

Drain Valve (K): The drain valve is located at the base of the air tank and is used to drain condensation at the end of each use.

Check Valve (M): When the air compressor is operating, the check valve is "open", allowing compressed air to enter the air tank. When the air compressor reaches "cut-out" pressure, the check valve "closes", allowing air pressure to remain inside the air tank.

Motor Overload Protector (not shown): The motor has a thermal overload protector. If the motor overheats for any reason, the overload protector will shut off the motor. The motor must be allowed to cool down before restarting. To restart:

1.Set the On/Off lever to "Off" and unplug unit.

2.Allow the motor to cool.

3.Plug the power cord into the correct branch circuit receptacle.

4.Set the Auto/Off lever to "On" position.

Quick-Connect Body (F): The quick connect body accepts industrial quick connect plugs. The two quick connect bodies allow the use of two tools at the same time.

How to Use Your Unit (Fig. 2)

How to Stop

1.Set the On/Off switch (D) to "Off".

2.Unplug unit when not in use.

Before Starting

WARNING: Do not operate this unit until you read this instruction manual for safety, operation and maintenance instructions.

Before Each Start-Up

1.Set the On/Off switch (D) to "Off".

2.Plug the power cord into the correct branch circuit receptacle. (Refer to Voltage and Circuit Protection paragraph in the Installation section of this manual.)

3.Turn the regulator knob (G) counterclockwise to set the outlet pressure to zero.

4.Attach hose and accessories.

WARNING: Risk of unsafe operation. Firmly grasp air hose in hand when installing or disconnecting to prevent hose whip.

WARNING: Risk of unsafe operation. Do not use damaged or worn accessories.

NOTE: The hose or accessory will require a quick connect plug if the air outlet is equipped with a quick connect body (F).

WARNING: Risk of Bursting. Too much air pressure causes a hazardous risk of bursting. Check the manufacturer’s maximum pressure rating for air tools and accessories. The regulator outlet pressure must never exceed the maximum pressure rating.

NOTICE: Risk of property damage. Compressed air from the unit may contain water­ condensation and oil mist. Do not spray un­filtered­ air at an item that could be damaged by moisture. Some air tools and accessories may require filtered air. Read the instruc­tions­ for the air tools and accessories.

How to Start

1.Set the On/Off switch (D) to "On" and allow tank pressure to build. Motor will stop when tank pressure reaches "cut-out" pressure.

2.Turn regulator knob (G) clockwise to increase pressure and stop when desired pressure is reached.

WARNING: Risk of unsafe operation. If any unusual noise or vibration is noticed, stop the compressor immediately and have it checked by a trained service technician.

The compressor is ready for use.

MAINTENANCE

Customer Responsibilities

	Before each use	Daily or after	See tank warning label
		each use
Check Safety Valve	X
Drain Tank		X
Remove tank from service			X1

1- For more information, call 1-800-4-DeWALT (1-800-433-9258)

WARNING: Risk of unsafe operation. Unit cycles automatically when power is on. When performing maintenance, you may be exposed to voltage sources, compressed air, or moving parts. Personal injuries can occur. Before performing any maintenance or repair, disconnect power source from the compressor and bleed off all air pressure.

NOTE: See Operation section for the location of controls.

To Check Safety Valve (Fig. 2)

WARNING: Risk of Bursting. If the safety valve does not work properly, over-pressurization may occur, causing air tank rupture or an explosion.

WARNING: Risk from Flying Objects. Always wear certified safety equipment: ANSI Z87.1 eye protection (CAN/CSA Z94.3) with side shields.

Before starting compressor, pull the ring on the safety valve (H) to make sure that the safety valve operates freely. If the valve is stuck or does not operate smoothly, it must be replaced with the same type of valve.

To Drain Tank (Fig. 2, 3)

WARNING: Risk of Unsafe Operation. Air tanks contain high pressure air. Keep face and other body parts away from outlet of drain. Use ANSI Z87.1 eye protection (CAN/CSA Z94.3) when draining as debris can be kicked up into face.

WARNING: Risk from noise. Always wear proper hearing protection during use. Under some conditions and duration of use, noise from this product may contribute to hearing loss.

NOTE: All compressed air systems generate condensate that accumulates in any drain point (e.g., tanks, filter, aftercoolers, dryers). This condensate contains lubricating oil and/or substances which may be regulated and must be disposed of in accordance with local, state, and federal laws and regulations.

WARNING: Risk of Bursting. Water will condense in the air tank. If not drained, water will corrode and weaken the air tank causing a risk of air tank rupture.

NOTICE: Risk of Property Damage. Drain water from air tank may contain oil and rust which can cause stains.

1.Set the On/Off switch (D) to "Off".

2.Turn the regulator knob (G) counterclockwise to set the outlet pressure to zero.

3.Remove the air tool or accessory.

4.Place a suitable container under the drain valve to catch discharge.

5.Pull ring on safety valve (H) allowing air to bleed from the tank until tank pressure is approximately 20 psi. Release safety valve ring.

6.Drain water from air tank by opening drain valve (K) on bottom of tank.

7.After the water has been drained, close the drain valve. The air compressor can now be stored.

NOTE: If drain valve is plugged, release all air pressure. The valve can then be removed, cleaned, the reinstalled.

Storage

Before you store the air compressor, make sure you do the following:

1.Review the Maintenance section on the preceding pages and perform scheduled maintenance as necessary.

2.Drain water from air tank. See To Drain Tank under Maintenance.

FIG. 1 A

C

B

FIG. 2

D

E

JI

		H
					F
			G
FIG. 3				FIG. 4
	K			M

FIG. 5

WARNING: Water will condense in the air tank. If not drained, water will corrode and weaken the air tank causing a risk of air tank rupture.

3.Protect the electrical cord and air hose from damage (such as being stepped on or run over).

Wind air hose loosely around the compressor handle. Wrap electrical cord onto the cord wrap.

4.Store the air compressor in a clean and dry location.

Accessories

Warning: The use of any other accessory not recommended for use with this tool could be hazardous. Use only accessories rated equal to or higher than the rating of the air compressor.

Recommended accessories for use with your tool are available for purchase from your local dealer or authorized service center. If you need assistance in locating any accessory for your tool, please contact DeWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286, call 1-800-4-DeWALT (1-800-433-9258) or visit our website www.dewalt.com.

Service Information

Please have the following information available for all service calls:

Model Number _____________________ Serial Number ________________________________

Date and Place of Purchase _______________________________________________________

Repairs

To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should be performed by a DeWALT factory service center, a DeWALT authorized service center or other qualified service personnel. Always use identical replacement parts.

Full One Year Warranty

DeWalt heavy duty industrial tools are warranted for one year from date of purchase. We will repair, without charge, any defects due to faulty materials or workmanship. For warranty repair information, call 1-800-4-DeWALT (1-800-433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.

Latin America: This warranty does not apply to products sold in Latin America. For products sold in Latin America, see country specific warranty information contained either in the packaging, call the local company or see website for warranty information.

FREE WARNING LABEL REPLACEMENT (Fig. 5): If your warning labels become illegible or are missing, call 1-800-4-DeWALT(1-800-433-9258) for a free replacement.

Glossary

CFM: Cubic feet per minute.

SCFM: Standard cubic feet per minute; a unit of measure of air delivery.

PSI: Pounds per square inch; a unit of measure of pressure.

kPa (kilopascal): Metric pressure measurement. 1 kilopascal equal 1000 pascals.

Code Certification: Products that bear one or more of the following marks: UL®, CUL, CULUS, ETL®, CETL, CETLUS, have been evaluated by OSHA certified independent safety laboratories and meet the applicable Standards for Safety.

*UL® is a registered trademark of Underwriters Laboratories and ETL® is a registered trademark of Electrical Testing Laboratories.

Cut-In Pressure: While the motor is off, air tank pressure drops when accessory is used. When the tank pressure drops to a certain low level the motor will restart automatically. The low pressure at which the motor automatically restarts is called cut-inpressure.

Cut-Out Pressure: When an air compressor is turned on and begins to run, air pressure in the air tank begins to build. It builds to a certain high pressure before the motor automatically shuts off, protecting your air tank from pressure higher than its capacity. The high pressure at which the motor shuts off is called cut-outpressure.

Branch Circuit: The circuit carrying electricity from electrical panel to outlet.

Duty Cycle: This air compressor pump is capable of running continuously. However, to prolong the life of your air compressor, it is recommended that a 50%-75% average duty cycle be maintained; that is, the air compressor pump should not run more than 30-45 minutes in any

given hour.

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 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
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
Regulator knob has continuous air leak			13
Regulator will not shut off air outlet			13
Motor will not run			6, 14, 15, 16, 17, 18, 19, 20
Squealing Sound			21
	Troubleshooting Codes
Code	possible cause	POSSIBLE SOLUTION
1	Pressure switch does	Set the Auto/Off switch to OFF, if the unit does not shut
	not shut off motor	off contact a DeWALT factory service center or a DeWALT
	when compressor	authorized service center.
	reaches cut-out
	pressure

2Pressure switch cut- Contact a DeWALT factory service center or a DeWALT

	out too high	authorized service center.
3	Tube fittings are not	Tighten fittings where air can be heard escaping. Check
	tight enough	fittings with soapy water solution. Do Not Overtighten.
4	Defective air tank	Air tank must be replaced. Do not repair the leak.
		Warning: Risk of bursting. Do not drill into, weld or
		otherwise modify air tank or it will weaken. The air tank can
		rupture or explode.
5	Leaking seals	Contact a DeWALT factory service center or a DeWALT
		authorized service center.
6	Defective safety valve	Operate safety valve manually by pulling on ring. If valve still
		leaks, it must be replaced.
7	Regulator is not	It is normal for some pressure drop to occur when an
	adjusted correctly for	accessory is used, adjust the regulator as instructed in
	accessory being used	Regulator under Features if pressure drop is excessive.
		NOTE: Adjust the regulated pressure under flow conditions
		while accessory is being used.
8	Prolonged excessive	Decrease amount of air usage.
	use of air