Troubleshooting - Grizzly H7664 Instruction Manual

Symptom
Air leaking at trig-
ger valve area.
Air leaking between
housing and hose.
Air leaking between
housing and cap
assembly.
Tool skips fasten-
ers while discharg-
ing.
Tool runs slowly
or has a loss of
power.
Fasteners fre-
quently jam the
nailer/stapler.
Nailer/stapler does
not fire.
-18
-

Troubleshooting

Possible Cause
1. O-rings in trigger valve hous-
ing are damaged.
1. Loose screws in housing.
2. Damaged O-ring.
3. Loose air fitting.
1. Damaged seal.
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. Nailer/stapler is not sufficiently
lubricated.
2. Broken spring in cap assem-
bly.
3. Exhaust port in cap is blocked.
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. Fastener is jammed in maga-
zine or discharge area.
2. Piston shaft is damaged.
3. Air pressure too low.
Solution
1. O-rings must be replaced
1. Tighten screws.
2. Replace O-ring.
3. Tighten air fitting & use tef-
1. Replace damaged seals.
1. Tighten screws and fittings.
2. Clean nose.
3. Clean magazine and
4. Check fitting, hose, com-
5. Replace piston O-ring.
6. Replace trigger valve O-
7. Replace bumper.
8. Replace cap seal.
1. Lubricate nailer/stapler.
2. Replace spring.
3. Clean or replace damaged
1. Use correct nails/staples.
2. Lubricate nailer/stapler.
3. Use undamaged, clean fas-
4. Tighten magazine.
5. Replace worn or damaged
1. Clear magazine or dis-
2. Replace piston shaft.
3. Check/increase air pres-
H7664 2-in-1 Combination Nailer/Stapler
& operation of safety yoke
must be checked.
lon tape.
inspect/repair damage.
pressor & air pressure.
Lubricate.
rings.
internal parts.
teners.
parts.
charge area.
sure.