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0421 IH-8726
OPERATING ISSUE
CAUSES
RECOMMENDATIONS
Skipping fasteners;
intermittent feed
Worn bumper
Tar/dirt in driver channel
Air restriction/inadequate air flow
through quick disconnect socket
and plug
Worn piston O-ring
Tool dry, lacks lubrication
Damaged feed piston spring
Low air pressure
Loose canister nose screws
Fasteners too short for tool
Bent fasteners
Wrong size fasteners
Leaking head cap gasket
Trigger valve O-ring cut/worn
Broken/chipped driver
Dry/dirty magazine
Replace bumper.
Disassemble and clean nose and
driver.
Replace quick disconnect fittings.
Replace O-ring, check driver.
Use BOSTITCH Air Tool Lubricant.
Replace spring.
Check air supply system to tool.
Tighten all screws.
Use only recommended fasteners.
Discontinue using these fasteners.
Use only recommended fasteners.
Tighten screws/replace gasket.
Replace O-ring.
Replace driver (check piston O-ring).
Clean/lubricate use BOSTITCH Air Tool
Lubricant.
Fasteners jam in tool
Driver channel worn
Wrong size fasteners
Bent fasteners
Loose canister/nose screws
Broken/chipped driver
Replace nose/check door.
Use only recommended fasteners.
Discontinue using these fasteners.
Tighten all screws.
Replace driver.
TROUBLESHOOTING CONTINUED
