Use and Care Manual

TO REPLACE THE SEALS:
Plunger Seal Set (#32):
1. Remove the Teon
®
Seal and its O-ring expander
from the Plunger groove using a bent paper clip or pick.
Be sure not to scratch the inside walls of the seal groove
with the wire hook.
2. Clean out the seal groove. Place a new O-ring into
the seal groove by stretching it over the Plunger body.
Make sure the O-ring is not twisted in the groove. Place
a new Teon
®
Seal Ring into the seal groove over the
O-ring.
3. Carefully push the Teon® Seal Ring over the edge
of the Plunger with your thumbs and into the groove.
Do this as quickly as possible to reduce stretching of
the Teon
®
Seal Ring. DO NOT OVER STRETCH
THE TEFLON
®
SEAL RING. Be sure the Teon
®
Seal Ring is centered all around the seal groove and not
twisted.
4. Wipe off the Seal surface with a clean rag and
lubricate it generously with the supplied Mobile DTE
Light air tool oil lubricant.
Rubber Seat (#30):
1. Remove the Cylinder Sleeve (#14). The Cylinder
Sleeve would slide out of the Nailer Body when you
pull out the Driving Blade
2. Remove the metal Support Ring (#29) and Rubber
Seat from inside the Nailer body. NOTE THAT THE
CHAMFER ON THE INSIDE OF THE RUBBER
SEAT FACES THE BOTTOM OF THE NAILER.
Do not reverse the direction of the chamfer when you
replace the Rubber Seat.
3. Replace the Rubber Seat, Support Ring and Cylinder
Sleeve. Be sure to re install the steel Cylinder Sleeve
with the chamfered inside edge facing the BOTTOM of
the Nailer.
Piston U Cup Lip Seal (#19):
1. Remove the old Piston U Cup Lip Seal from the
Piston using a bent paper clip or pick, being careful not
to scratch the inside walls of the seal groove or the edge
of the Piston with the wire hook.
2. Clean out the seal groove. Place a new U-Cup Lip
Seal into the groove. Make sure the lip seal is not
twisted in the groove and the lips face the top of the
Nailer. See the sketch on next page (#19).
3. Carefully wipe off the U Cup Lip Seal surface
with a clean rag and lubricate it generously with the
supplied Mobile DTE Light air tool oil lubricant.
Return Cylinder U Cup Lip Seal (#20):
1. Use a bent paper clip or pick to remove the old
U Cup Lip Seal from the internal seal groove inside
the Return Cylinder. Be careful not to scratch the
inside walls of the seal groove with the wire hook.
2. Clean out the seal groove. Place a new U Cup
Lip Seal into the groove, be sure it is not twisted in
the groove. Be sure the lips are facing the inside of
the Return Cylinder as shown in the sketch on next
page.
WARNING
The U-Cup Lip Seals #20 and
#21 look alike, but they are different, DO NOT mix
them up.
3. Carefully wipe off the Lip Seal surface with
a clean rag and lubricate it generously with the
supplied Mobile DTE Light air tool oil lubricant.
Piston Rod U-Cup Lip Seal (#21):
1. Remove the old U-Cup Lip Seal from the seal
groove with a bent paper clip or pick using care not
to scratch the inside walls of the seal groove with
the wire hook.
2. Clean out the seal groove and install a new U-
Cup Lip Seal. Be sure the Lips are facing the right
direction and are not twisted in the groove. See the
sketch on next page.
Plunger Wiper Seal (#33):
1. Use a bent paper clip to pick out the felt Wiper
Seal out of its groove in the Body Cap (#2).
2. Clean out the groove and insert a new felt Wiper
6