
MAINTENANCE & TROUBLESHOOTING
CLEANING YOUR NAILER
•Never use gasoline or other flammable liquids to clean the nailer. Vapors in the nailer will ignite
by a spark and cause the tool to explode and result in death or serious personal injury.
•Disconnect the air supply from the nailer.
•Remove tar buildup with #2 kerosene fuel oil or diesel fuel. Do not allow solvent to get into the
cylinder or dammage may occur. Dry off the tool completely before use.
•Air leaking at trigger valve
area.
•Air leaking between
housing and nose.
•Air leaking bewteen
housing and cap assembly.
•Nailer skips a nail.
•Nailer runs too slowly or
has loos of power.
• Jammed nails.
•O-rings in trigger valve are damaged.
•Loose screws in housing.
•Damaged O-rings.
•Bumper damage.
•Loose screws.
•Damaged seal.
• Worn bumper.
•Dirt in nailer nose.
•Dirt or damage prevents nails from mov-
ing freely in the magazine.
•Inadequate air flow to nailer.
•Worn O-ring on piston or lack of
lubrication.
•Damaged O-rings on trigger valve.
•Air leaks.
•Cap seal is leaking.
•Nailer is not sufficiently lubricated.
•Broken spring in cap assembly.
•Exhaust port in cap is blocked.
•Driver guide worn or damaged.
•Nails are bent.
•Magazine or nose screws are loose.
•Damaged driver.
•O-rings must be replaced and safety trip
mechanism must be verified.
•Screws need to be tightened.
•O-rings must be replaced.
•Bumper needs to be replaced.
•Screws need to be tightened.
•Seal must be replaced.
•Bumper needs to be replaced.
•Clean.
•Magazine must be cleaned.
•Fitting hose and air compressor need to
be checked.
•O-rings must be replaced, lubricate.
•O-rings must be replaced.
•Screws and fittings need to be tightened.
•Seal needs to be replaced.
•Lubricate.
•Spring needs to be replaced.
•Damaged internal parts must be replaced.
•Replace driver guide.
•Replace with undamaged nails.
•Screws need to be tightened.
•Replace driver.
Problem Cause Solution
TROUBLESHOOTING CHART
WARNING: Stop using this tool immediately if any of the following problems occur. Serious personal injury could occur. Any
repairs or replacements must be done by a qualified person or an authorized service centre only.
REPLACEMENT DRIVER, BUMPER & O-RING REPAIR KITS
After prolonged use of your Nailer, the internal O-rings, Bumper & Driver may have to be replaced
caused by wear & tear.Torepair,acomplete Driver,Bumper & O-ring Replacement Accessory
Kit is available for your Nailer (model: KW-079). Contact your local King Canada distributor for
more information.
KW-079
PARTS DIAGRAM & PARTS LISTS
Refer to the Parts section of the King Canada web site for the most updated parts diagram and
parts list.