Powernail 445FS, Operation And Maintenance Manual

Page: 13 / 16

13
PROBLEM POSSIBLE CAUSE SOLUTION
1
Driving
blade does
not retract
1. Zero of Low air pressure Check air supply for 80 psi minimum to 110 psi maximum
2. Lack of lubrication Manually lubricate through male air inlet fi tting
3. Excessive dirt inside Stapler Disassemble and clean
4. Bent or burred driving blade Replace driving blade (14)
5. Seals worn out Replace all seals (Seal Kit A-5)
6. U-Cup Lip Seals installed upside down Replace all seals (Seal Kit A-5)
7. Seals need to be seated — dry fi re Stapler
2
Driving
blade
retracts
slowly
1. Low air pressure Turn up air pressure to 80-110 psi max
2. Lack of lubrication Manually lubricate through male air inlet fi tting
3. Air supply restricted by small ori fi ce Use 1/4" minimum diameter air fi ttings
4. U-Cup Lip Seals installed upside down Replace all seals (Seal Kit A-5)
5. Excessive dirt inside nailer Disassemble, clean and lubricate
3
Staple is not
countersunk
1. Low air pressure Turn up air pressure to 80-110 psi max
2. Broken Driving Blade Replace Driving Blade (14)
3. Stapler hit hard surface Move from obstruction
4. Driving blade jam nut came loose Retighten or replace jam nut (50)
5. Worn out gate Replace gate (44)
4
Stapler
leaks air
1. Air supply fi ttings loose Tighten all air line fi tting connections
2. Dry wall dust in Stapler Rebuild Stapler
3. Excess air pressure blew out seals Check air supply for 110 psi maximum—replace all seals
4. Plunger screws loose Tighten 3 plunger screws (52)
5. Cracked or damaged body Replace body (1)
6. Seals worn out Replace all seals (Seal Kit A-5)
7. Seals need to be seated Dry fi re Stapler
5
Bottom
of stapler
cracked off
1. Operated without rubber bumper installed Replace damaged parts
2. Excessive air pressure used Replace damaged parts
6
Staples jam
in nailer
1. Not using Powerstapler™ Staples Use Powerstapler™ Staples only (2”,1-3/4”,1-1/2” Lengths)
2. Continued use after a short hit Clear staple immediately after short hit
3. Staple pusher damaged or spring broken Replace staple pusher assembly (A-10)
4. Staple channel loose Tighten staple channel retaining screws (49, 51)
5. Bent staple stuck in staple guide Disassemble and clear out bent staple
6. Hit another set staple or hard object Move from obstruction
7. Stapler gate worn out Replace staple gate (44)
7
Plunger
locked
up—won't
move or fi re
1. Safety trigger not being depressed
Replace damaged plunger, safety yoke and
plunger seal (12, 8, 21)
2. Lack of lubrication Manually lubricate through male air inlet fi tting
PowerStapler 445FS Trouble Shooting Chart