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H7664 2-in-1 Combination Nailer/Stapler
-18-
Troubleshooting
Symptom Possible Cause Solution
Air leaking at trig-
ger valve area.
1. O-rings in trigger valve hous-
ing are damaged.
1. O-rings must be replaced
& operation of safety yoke
must be checked.
Air leaking between
housing and hose.
1. Loose screws in housing.
2. Damaged O-ring.
3. Loose air fitting.
1. Tighten screws.
2. Replace O-ring.
3. Tighten air fitting & use tef
-
lon tape.
Air leaking between
housing and cap
assembly.
1. Damaged seal. 1. Replace damaged seals.
Tool skips fasten
-
ers while discharg
-
ing.
1. Air leaks.
2. Dirt in nose.
3. Dirt or damage prevents fas
-
teners from moving freely in
magazine.
4. Inadequate air flow to tool.
5. Worn O-ring on piston or lack
of lubrication.
6. Damaged O-rings on trigger
valve.
7. Worn bumper.
8. Cap seal leaking.
1. Tighten screws and fittings.
2. Clean nose.
3. Clean magazine and
inspect/repair damage.
4. Check fitting, hose, com
-
pressor & air pressure.
5. Replace piston O-ring.
Lubricate.
6. Replace trigger valve O-
rings.
7. Replace bumper.
8. Replace cap seal.
Tool runs slowly
or has a loss of
power.
1. Nailer/stapler is not sufficiently
lubricated.
2. Broken spring in cap assem
-
bly.
3. Exhaust port in cap is blocked.
1. Lubricate nailer/stapler.
2. Replace spring.
3. Clean or replace damaged
internal parts.
Fasteners fre
-
quently jam the
nailer/stapler.
1. Fasteners are the wrong size.
2. Nailer/stapler is not sufficiently
lubricated.
3. Fasteners are bent or dirty.
4. Magazine or nose screws are
loose.
5. Driver or driver guide are worn
or damaged.
1. Use correct nails/staples.
2. Lubricate nailer/stapler.
3. Use undamaged, clean fas-
teners.
4. Tighten magazine.
5. Replace worn or damaged
parts.
Nailer/stapler does
not fire.
1. Fastener is jammed in maga
-
zine or discharge area.
2. Piston shaft is damaged.
3. Air pressure too low.
1. Clear magazine or dis
-
charge area.
2. Replace piston shaft.
3. Check/increase air pres
-
sure.