Remington 489, 490 operating instructions Troubleshooting Guide, Problem Possible Remedy Cause

Troubleshooting Guide

PROBLEM	POSSIBLE	REMEDY
	CAUSE
Piston hangs	Tool overdriven.	Tap piston on a hard surface
out of muzzle.		until piston is pushed back
		into	the	muzzle	(see
		OverdrivenFastener below).
	Piston not properly	Remove barrel assem-
	assembled in rela-	bly. Follow instructions
	tion to barrel screw.	for barrel		replacement
		(see page 17). Replace
		all damaged or missing
		parts.
	Broken piston.	Replace barrel assem-
		bly or take tool to your
		distributor.
Overdriven fas-	Excessive power.	Change either to			next
tener.		lower powder load or next
		longer length fastener.
Piston jammed.	Overdriving of fas-	Remove barrel assem-
	tener (see above).	bly. Follow instructions
		for barrel replacement
		(see page 17). Replace
		other parts if damaged.
Expended load	Dirty or damaged	Clean chamber. If loads
will not extract.	chamber.	will	not chamber		with
Reduction or		slip-fit or extraction dif-
loss of power.		ficulties continue, take
		tool to your distributor.
	Broken ejector.	Replace barrel assem-
		bly or take tool to your
		distributor.
	Pins being used are	Use proper pin size.
	over 2 1/2" long.
Reduction or	Piston not returning	Barrel must be snapped
loss of power	to full rear position.	to the full extended posi-
		tion to properly position
		piston against breech.
	Worn piston ring or	Replace barrel assem-
	broken piston.	bly or take tool to your
		distributor.
Tool does not	Misassembled or	Remove		breech	and
completely de-	damaged breech	check all parts for cor-
press.	and firing pin parts.	rect fit assembly.
Tool does not	Failure of tool to de-	See	data	listed under
fire.	press completely.	Tool does not completely
		depress, above.

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