Bosch Power Tools FNS250-16 manual Troubleshooting, Problem Symptoms Resolution

BM 2610957380 02-09:BM FNS250-16 06-09 6/17/09 8:05 AM Page 14

Troubleshooting

PROBLEM	SYMPTOMS	RESOLUTION
Nailer operates, but no	• Check for a jam.	• Clear a jam.
nail is driven.	• Check function of nail follower.	• Clean and lubricate.
	• Follower spring weakened or damaged?	• Replace follower spring.
	• Check for proper nails.	• Use only recommended nails.
	• Verify tool is loaded.	• Reload tool.
Nail driving action seems	• Check air pressure is in operational range.	• Increase air pressure (Do not exceed 120 psi).
slow or weak.	• Driver blade worn?	• Use pneumatic tool lubricant.
	• Piston O-ring worn or damaged?	• Contact Bosch for replacement or repair.
	• Bumper worn?	• Replace Bumper.
	• Check recommend hose diameter and length.	• Follow recommendations.
		• Check hose for kinks.
Tool drives nails too	• Check air pressure.	• Reduce air pressure. Min. Operational
deep.	• Check Depth of Drive.	pressure 60 psi.
	• Check bumper wear.	• Use “Depth of Drive Adjustment”.
		• Replace bumper.
Tool drives nails too	• Check air pressure.	• Increase air pressure. Max. Operational
shallow.	• Check Depth of Drive.	pressure 120 psi.
	• Check recommend hose diameter and length.	• Use “Depth of Drive Adjustment”.
		• Follow recommendations.
		• Check hose for kinks.
Tool skips nails or has	• Check for proper nails.	• Use only recommended nails.
intermittent feed.	• Check function of magazine per page 7.	• Clean and lubricate.
	• Follower spring weakened or damaged?	• Replace follower spring.
	• Piston O-ring cut or heavily worn?	• Contact Bosch for replacement.
Nails jam frequently.	• Check for proper nails.	• Use only recommended.
Driven nails are bent.	• Driver blade worn?	• Contact Bosch for replacement.
Nails driven properly	• Check inside diameter of air hose.	• Use correct air hose.
during normal operation,	• Check suitability of compressor.	• Use correctly sized compressor for number of
but does not drive fully at		tools used and work rate.
faster nailing speeds.

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