Troubleshooting - Remington 490 Operating Instructions Manual

Troubleshooting Guide
PROBLEM
Piston hangs
out of muzzle.
Overdriven fas-
tener.
Piston jammed.
Expended load
will not extract.
Reduction or
loss of power.
Reduction or
loss of power
Tool does not
completely de-
press.
Tool does not
fire.
POSSIBLE
CAUSE
Tool overdriven.
Piston not properly
assembled in rela-
tion to barrel screw.
Broken piston.
Excessive power.
Overdriving of fas-
tener (see above).
Dirty or damaged
chamber.
Broken ejector.
Pins being used are
1
over 2 / " long.
2
Piston not returning
to full rear position.
Worn piston ring or
broken piston.
Misassembled or
damaged breech
and firing pin parts.
Failure of tool to de-
press completely.
20
REMEDY
Tap piston on a hard surface
until piston is pushed back
into the muzzle (see
Overdriven Fastener below).
Remove barrel assem-
bly. Follow instructions
for barrel replacement
(see page 17). Replace
all damaged or missing
parts.
Replace barrel assem-
bly or take tool to your
distributor.
Change either to next
lower powder load or next
longer length fastener.
Remove barrel assem-
bly. Follow instructions
for barrel replacement
(see page 17). Replace
other parts if damaged.
Clean chamber. If loads
will not chamber with
slip-fit or extraction dif-
ficulties continue, take
tool to your distributor.
Replace barrel assem-
bly or take tool to your
distributor.
Use proper pin size.
Barrel must be snapped
to the full extended posi-
tion to properly position
piston against breech.
Replace barrel assem-
bly or take tool to your
distributor.
Remove breech and
check all parts for cor-
rect fit assembly.
See data listed under
Tool does not completely
depress, above.
101274