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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.
Problem
• Air leaking at trigger valve
area.
• Air leaking between
housing and nose.
• Air leaking between
housing and cap assembly.
• Nailer skips a nail.
• Nailer runs too slowly or
has loss of power.
• Jammed nails.
REPLACEMENT DRIVER, BUMPER & O-RING REPAIR KITS
After prolonged use of your Nailer, the internal driver, bumper and o-rings may have to be
replaced caused by wear & tear. To repair, a complete Driver, Bumper & O-ring Replacement
Accessory Kit is available for your Nailer (model: KW-169). Contact your local King Canada
distributor for more information.
PARTS DIAGRAM & PARTS LISTS
Refer to the Parts section of the King Canada web site for the most updated parts diagram and parts list.
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.
• 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
moving 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.
Cause
Solution
• 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.
• Hose fitting 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.
KW-169
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