Remington Power Tools 494 operating instructions Maintenance, Troubleshooting Guide

Maintenance

IMPORTANT:

Clean your tool after each day’s use. The parts shown in the illustration below should be cleaned daily. Clean metal parts with accessory wire brushes. Apply penetrating lubricant sparingly and wipe dry.

	Receiver
	Barrel
	Buffer
	Tang
	Tang Spring
	Tang Cap
Muzzle Cap	Piston

Troubleshooting Guide

PROBLEM	POSSIBLE CAUSE	REMEDY
Piston rod hangs out of muzzle	Piston not properly assembled	Remove barrel assembly.
cap.	in relation to tang.	Follow instructions for piston
		change. Replace all damaged
		or missing parts.
	Broken piston.	Replace piston.
Overdriving of power fastener.	Excessive power.	Change either to next lower
		power load, or use next longer
		fastener length.
Piston jammed.	Overdriving of power fastener	Remove barrel assembly.
	(see above).	Follow instructions for buffer
	Buffer binding on piston in	replacement (page 21). Replace
	muzzle cap.	other parts if damaged.
Expended power load will not	Dirty or damaged receiver	Clean receiver chamber. If
extract.	chamber.	power loads will not chamber
		with a slip-fit or extraction
		difficulties continue, take tool to
		your distributor for repair.
Reduction or loss of power.	Piston not returning to full rear	Barrel must be opened fully to
	position.	the full extended position to
		properly position piston.
	Worn piston ring.	Remove piston. Replace piston
		ring.
	Broken piston.	Replace piston.
		101437

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