Hitachi NC40G - 1 1/2" Concrete Nailer Instruction And Safety Manual page 22

English
Maintenance chart
ACTION
Clean magazine and feeder
mechanism.
Keep push lever working properly.
Operator troubleshooting
PROBLEM
Nailer operates, but no nail is driven.
Skipping nails.
Intermittent feed.
Nails jam.
Driven nail is bent.
The operation of the push lever not
smooth.
Fan is working, light indicator shows
GREEN yet it doesn't drive a nail or
operation unstable.
Fan does not operate when push lever
is pressed.
Unable to charge battery.
WHY
Prevent a jam.
Promote operator safety and
efficient Nailer operation.
CHECK METHOD
Check for a jam.
Check function of nail feeder per
page 20.
Ribbon spring weakened or damaged?
Check for proper nails.
Check if the driver blade piston is down Push the driver blade with a slotted-head
or not.
Check for proper nails.
Check function of nail feeder per
page 20.
Ribbon spring weakened or damaged?
Nail feeder (B) worn or damaged?
Check for returning of piston.
Check for moving of piston smoothly.
Check for proper nails.
Driver blade worn?
Nail feeder (B) worn or damaged?
Push lever bent?
Check push lever's moving track, debris? Contact Hitachi for replacement.
Check for returning of piston.
Check fuel cell, insufficient?
Check spark plug wire, worn out?
Check spark plug, grease or debris?
Check filter, clogged?
Magazine empty.
Note the color of the light indicator.
— 22 —
HOW
Blow clean daily.
Blow clean daily.
CORRECTION
Clear a jam.
Clean and lubricate.
Replace ribbon spring.
Use only recommended nails.
screwdriver, and put back the piston to
the highest position.
Use only recommended nails.
Clean and lubricate.
Replace ribbon spring.
Replace nail feeder (B).
Pull the trigger all the way.
Too low temperature, warm up fuel cell
under 120°F (50°C).
Contact Hitachi for replacement.
Replace piston ring.
Replace piston.
Replace cylinder o-ring.
Use only recommended nails.
Contact Hitachi for replacement.
Replace nail feeder (B).
Contact Hitachi for replacement.
Pull the trigger all the way.
Too low temperature, warm up fuel cell
under 120°F (50°C).
Exchange it with a new fuel cell.
Contact Hitachi for replacement.
Contact Hitachi for replacement.
Contact Hitachi for replacement.
Load more nails in the magazine.
If red: charge the battery.
If green: Contact Hitachi for replacement.
Check the electrical cord.