Grizzly H7947, H7948 instruction manual Troubleshooting, Symptom Possible Cause Solution

TROUBLESHOOTING

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

-18- H7947/H7948 16 Gauge Stapler