Harbor Freight Tools 46240-B Problem Probable Cause Solution, Maintenance, Troubleshooting

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Troubleshooting

Note: Have the following problems repaired by a qualified service technician.

Problem

Probable Cause

Solution

 

 

 

Air leaking at trigger

Damaged O-rings in trigger valve

Replace O-rings. Then, recheck safety trip

valve area.

housing.

mechanism.

 

 

 

Air leaking between

Loose screws in housing, damaged O-

Tighten screws, or replace O-r ings or

housing and nose.

rings or bumper.

bumper.

 

 

 

Air leaking between

Loose screws or damaged gasket.

Tighten screws or replace gasket.

housing and cap.

 

 

 

 

 

Runs slowly or has

Nailer insufficiently oiled, broken

Lubricate as instructed, install new spring, or

spring in cylinder cap, exhaust port in

power loss.

cap is blocked.

replace damaged internal parts.

 

 

 

 

 

 

Worn or dirty bumper, damaged push-

Replace bumper or pusher spring, clean

Nailer skips driving nails.

er spring, inadequate air flow, worn or

bumper and drive channel, check fittings,

 

dry O-ring on piston, damaged O-ring

replace or lubricate O-rings, replace gasket.

 

on trigger valve, cap gasket leaking.

 

Nails are jammed in

Guide on driver is worn. Wrong size or

Replace guide, use recommended, un-

damaged nails, loose magazine or

damaged nails, tighten screws, replace

nailer nose.

nose screws, damaged driver.

driver.

 

 

 

 

 

Rounded driver blade causing slip-

Replace blade, adjust air pressure, check

Nail will not drive down

spring under cap for broken coils or reduced

tight.

page, power loss, slow cycling and

length, check if cap in exhaust por t is

 

power loss.

restricted.

 

 

 

 

 

Driving nail too deeply.

Worn bumper or piston spacer.

Replace either or both parts.

 

 

 

Warning! Disconnect the Nailer from the air compressor whenever loading or servic- ing. After disconnecting the Nailer from the air compressor, there could still be enough air pressure to fire the Nailer. Always fire the trigger repeatedly to make sure all of the air is expended.

Maintenance

Warning! Always disconnect the tool from the air compressor and then empty the magazine of nails before attempting to inspect or perform maintenance to the Nailer. The following three maintenance procedures can be done by the user of the tool.

1.Inspect all of the nuts and screws and make sure they are securely fastened.

2.Periodically lubricate the driving mechanism and magazine with a light oil. Wipe down with a clean cloth. Never use gasoline or flammable solvents to clean the tool.

3.Inspect your air compressor according to manufacturer’s instructions.

Warning! If you detect any air leaks, power loss, the Nailer skips driving, drives too deep, or not deep enough, take the Nailer to a qualified service technician.

SKU 46240-B

For technical questions, please call 1-800-444-3353.

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Contents AIR Framing Nailer Safety Warnings and Precautions SpecificationsRead all instructions before using this tool Save This ManualFor technical questions, please call REV 11/06 Unpacking Set UpUse the Correct Type of Nails Testing the Full Sequential Safety Trip MechanismPhoto Operating the Nailer Always Wear Eye Protection When Using the Air NailerFor technical questions, please call Problem Probable Cause Solution MaintenanceTroubleshooting Part Description Parts ListAssembly Diagram