OPERATING ISSUE
Trigger valve housing leaks air.
Trigger valve stem leaks air.
Frame/piston rod leaks air.
Frame/cap leaks air.
Lack of power; slow to cycle.
Skipping fasteners.
Fasteners jam in stapler.
PAGE 6 OF 18
TROUBLESHOOTING
CAUSES
O-Ring cut or cracked.
O-Ring/seals cut or cracked.
O-Ring.
Damaged O-Ring.
Loose cap screws.
Broken piston.
Tool dry, lacks lubrication.
O-Rings/seals cut or cracked.
Exhaust blocked.
Trigger assembly issue.
Dirt/tar buildup on driver.
Air pressure too low.
Worn or misadjusted cycle lever.
Tar/dirt in driver channel.
Air restriction/inadequate air flow through
quick disconnect socket and plug.
Worn piston O-Ring/piston.
Tool dry, lacks lubrication.
Low air pressure.
Loose magazine nose screws.
Leaking head cap gasket.
Trigger valve O-Ring cut/worn.
Broken/chipped driver.
Worn anvil/pusher.
Broken pusher spring.
Worn former.
Dry/dirty magazine.
Driver channel worn.
Wrong size fasteners.
Bent fasteners.
Loose magazine nose screws.
Broken/chipped driver.
Worn former.
Worn anvil/pusher.
1-800-295-5510
uline.com
RECOMMENDATIONS
Replace O-Ring.
Replace trigger valve assembly.
Replace O-Ring.
Replace O-Ring.
Tighten and recheck.
Replace piston.
Use Bostitch Air Tool Lubricant.
Replace O-Rings/seals.
Check bumper, head valve spring.
Replace trigger assembly.
Disassemble nose/driver to clean.
Check air supply equipment.
Adjust adjustment nut or replace
adjustment lever.
Disassemble and clean nose and
driver.
Replace quick disconnect fittings.
Replace O-Ring/piston.
Use Bostitch Air Tool Lubricant.
Check air supply system to tool.
Tighten all screws.
Tighten screws/replace gasket.
Replace O-Ring.
Replace driver (check piston O-Ring).
Replace anvil/pusher.
Replace pusher spring.
Replace former.
Clean/lubricate use Bostitch Air Tool
Lubricant.
Replace nose/check door.
Use only recommended fasteners.
Discontinue using these fasteners.
Tighten all screws.
Replace driver.
Replace former.
Replace pusher.
0424 IH-3530