Grizzly H7948 - Manual (Page 20)

H7947/H7948 16 Gauge 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.
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
Teflon tape.
Air leaking between
housing and cap
assembly. 1. Damaged cap gasket. 1. Replace gasket.
Tool skips staples
while discharging. 1. Air leaks.
2. Dirt in nose.
3. Dirt or damage prevents stap-
less 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.
1. Tighten screws and fittings.
2. Clean nose.
3. Clean magazine, inspect/
repair damage; insert a
clean strip of staples.
4. Check fitting, hose, com-
pressor & air pressure.
5. Replace piston O-ring.
Lubricate.
6. Replace trigger valve O-
rings.
7. Replace bumper.
Tool runs slowly
or has a loss of
power. 1. Stapler is not sufficiently lubri-
cated.
2. Compressor is not supplying
at least 70 PSI of air pressure
to the tool.
3. Exhaust port in cap is blocked.
1. Lubricate stapler.
2. Repair or replace compres-
sor.
3. Clean or replace damaged
internal parts.
Staples frequently
jam in the stapler
nose. 1. Staples are the wrong size.
2. Staples are bent or dirty.
3. Magazine or nose screws are
loose.
4. Driver or driver guide are worn
or damaged.
1. Use correct staples.
2. Use undamaged, clean
staples.
3. Tighten magazine.
4. Replace worn or damaged
parts.
Stapler does not
fire. 1. Staple is jammed in magazine
or discharge area.
2. Piston shaft is damaged.
3. Air pressure too low.
1. Clear stapler magazine or
discharge area.
2. Replace piston shaft.
3. Check/increase air pres-
sure.