Ingersoll Rand 2DA Serie Manual De Funcionamiento Y Mantenimiento página 21

Refitting of the Collar
1. To refit the Collar (19) to the Barrel (17), slide the
Collar along the Barrel and line up slot on Barrel with
protrusion inside of collar.
2. Tap Collar with rubber mallet until secure.
Refitting the Exhaust Deflector
1. To refit the Exhaust Deflector (22), lightly lubricate
the front large diameter of the Barrel with liquid soap
or O–ring lubricant. Then push the Exhaust Deflector
along the Barrel until it snaps into position in its
retaining groove.
The Exhaust Deflector can be rotated to direct the
exhaust stream away from the operator.
MAINTENANCE SECTION
Installation of Oversize Piston
Do not install an oversize Piston without first lapping
the Barrel.
Greater wear occurs near the center of the barrel bore than
at either end. To obtain full benefit from an oversize
Piston (16), it is necessary to lap the Barrel (17) until the
bore is of uniform size for its entire length.
Select and install the proper size Piston after truing up the
Barrel bore. Pistons are furnished .004" or .008", .012" or
.016" oversize.
21