Remington 489 - Manual (Page 20)

Piston hangs out
of muzzle.
PROBLEM
Piston jammed.
Overdriven fastener.
Reduction or loss
of power.
Tool does not
completely depress.
Tool does not fire.
Expended load will
not extract.
Troubleshooting Guide
Tool overdriven.
POSSIBLE CAUSE
Tap piston on a hard surface
until piston is pushed back
into the muzzle (see “Over-
driven Fastener” below).
Remove barrel assembly.
Follow instructions for barrel
replacement (see page 15).
Replace all damaged or
missing parts.
Replace barrel assembly or
take tool to your distributor.
Change either to next lower
powder load or next longer
length fastener.
Remove barrel assembly.
Follow instructions for barrel
replacement (see page 15).
Replace other parts if dam-
aged.
Clean chamber. If loads will
not chamber with slip-fit or
extraction difficulties con-
tinue, take tool to your dis-
tributor.
Replace barrel assembly or
take tool to your distributor.
Broken piston.
Excessive power.
Overdriving of fastener (see
above).
Dirty or damaged chamber.
Broken ejector.
Pins being used are over
2 1/2" long.
Piston not returning to full
rear position.
Failure of tool to depress
completely.
Use proper pin size.
Barrel must be snapped to
the full extended position to
properly position piston
against breech.
Replace barrel assembly or
take tool to your distributor.
Remove breech and check
all parts for correct fit assem-
bly.
See data listed under “Tool
does not completely de-
press,” above.
Worn piston ring or broken
piston.
Misassembled or damaged
breech and firing pin parts.
REMEDY
18
Piston not properly as-
sembled in relation to barrel
screw.