KenTheTPMSMan
02-22-2013, 09:18 PM
TECHNICAL BULLETIN
Schrader Bridgeport Document
TIRE CHANGING INSTRUCTIONS FOR TIRES WITH
SCHRADER SNAP-IN TPMS SENSORS
PURPOSE
1.
This bulletin instructs the tire changing tec
hnician how to properly mount and dismount a
tire that has a Schrader TPMS snap-in sensor.
SCHRADER OE TPMS SNAP-IN SENSOR
VALVE
CAP
VALVE
RIB
TORX
SCREW
SENSOR BODY
BULB
TECHNICAL BULLETIN
WORKSHOP PROCEDURES FOR SCHRADER SNAP-IN TPMS REPLACEMENT SENSOR
HOW TO RECOGNIZE A TPMS SNAP-IN SENSOR VALVE
1. Remove the cap to inspect the valve.
2. On a regular tubeless tire valve, the
rubber is molded all the way up to the nose
thread (1).
3. On an OE installed Schrader TPMS snap-
in sensor valve, the molded rubber on
the valve does not reach the thread, l
eaving a section of brass between the
rubber and the OE cap (2). The OE valve may have a long cap also.
4. On an after-market replacement TPMS snap-in sensor valve, the exposed
section of brass is present, but is cover
ed completely when the long cap is fully
screwed onto the stem (3).
Some OE snap-in valves may have the long cap also.
(3)
WHAT
NOT
TO DO DURING ASSEMBLY
1.
NEVER
install a damaged Snap-In sensor
or valve to a wheel rim.
2.
DO NOT
mount the tire to the rim unless
you are sure that the valve has been
installed correctly.
3.
NEVER
re-use an old screw or Snap-In valv
e. Always make sure that a new
Schrader screw and a new Snap-In valve is attached to the transmitter.
4.
NEVER
fit a Snap-In transmitter to unapproved wheel rims.
STORAGE CONDITIONS
1. Schrader TPMS Snap-In sensors should
be stored in a dry,
room temperature
place, where wet and extreme te
mperatures do not exist.
2. Storage temperatures s
hould be between 0°F and 100°F.
DISMOUNTING PROCEDURES USIN
G A TIRE CHANGING MACHINE
STEP 1
Remove valve core and deflate the tire.
Place wheel on the tire changing machine
and break both beads. Make sure the
sensor body is kept away from the bead
buster. Break the bead at 90°, 180° and
270° to the valve.
STEP 3
When the top bead is off, place the sensor
body at 12 o’clock relative to tire changing
machine and remove the bottom bead. Rim
should travel in a clockwise rotation.
STEP 5
Carefully and firmly pull the sensor body
straight back off the valve.
STEP 2
When removing the tire, make sure that the
sensor body is at 12 o’clock relative to the head
of tire changing machine. Rim should travel in
the clockwise direction.
STEP 4
To remove sensor, remove the screw using a
T10 torx screwdriver.
STEP 6
Cut the rubber bulb. Attach a standard TTV
removal tool to the valve. Remove the valve
from the rim by pulling the valve through the rim.
MOUNTING PROCEDURES USING
A TIRE CHANGING MACHINE
STEP 1
A. Attach a
NEW
valve to the Snap-In sensor body using a preset T10 torque screwdriver and a
NEW
Schrader screw.
IMPORTANT!
Make sure that the flat of the valve lines up with the flats of the Snap-In enclosure
as shown in the pictures below.
B. Grip the valve stem and body in the hand and st
art the screw for the first couple of threads.
C. Grip the valve stem
only
and tighten the screw.
D.
DO NOT
hold the Snap-In enclosure while fixing the sc
rew as this will lead to over tightening.
E. Tighten the screw to a torque value of
1.3Nm
using the preset Schrader torque screwdriver.
F. Make sure that the screw is installed correctly
by looking at the head of the screw. The head of the
screw
MUST
be in contact with the metal tag in the body.
STEP 2
Apply tire soap or lube solution to rubber
portion of the valve stem.
STEP 4
Using a standard TTV pull in tool, pull the
valve stem straight through the valve hole
and
NOT
at an angle.
STEP 6
This picture shows a TPMS sensor with a
bad fit. Note that the rubber bulb is not
resting on rim, and will not seal.
STEP 3
Line sensor up with rim hole as shown and
attach a standard TTV pull in tool to the end of
the valve ready for pull in.
STEP 5
The picture below shows the correct fit for the
sensor. Note the rubber bulb of valve resting
against rim and the front face of the sensor body
is NOT touching the rim.
STEP 7
Apply tire soap or lube solution to top and
bottom tire beads.
STEP 8
To fit the bottom bead of the tire, make sure that
the sensor is 90° from the tire changing head in
the clockwise direction as shown below. This
will protect the sensor when the bottom bead
seats.
STEP 10
Once the bottom bead is on the wheel, rotate
the wheel so the sensor is at the 9 o’clock
position in order to fit the top bead.
STEP 12
Inflate tire until the beads seat.
STEP 9
Fit the bottom bead of the tire by rotating the
wheel clockwise, and push down on the bead in
the position shown so t
hat it does not hit the
sensor when the bead seats.
STEP 11
Fit the top bead of the tire by rotating the wheel
clockwise, and pushing down on the bead in the
position shown so that it does not hit the sensor.
STEP 13
Inflate tire per vehicle recommendation.
Schrader Bridgeport Document
TIRE CHANGING INSTRUCTIONS FOR TIRES WITH
SCHRADER SNAP-IN TPMS SENSORS
PURPOSE
1.
This bulletin instructs the tire changing tec
hnician how to properly mount and dismount a
tire that has a Schrader TPMS snap-in sensor.
SCHRADER OE TPMS SNAP-IN SENSOR
VALVE
CAP
VALVE
RIB
TORX
SCREW
SENSOR BODY
BULB
TECHNICAL BULLETIN
WORKSHOP PROCEDURES FOR SCHRADER SNAP-IN TPMS REPLACEMENT SENSOR
HOW TO RECOGNIZE A TPMS SNAP-IN SENSOR VALVE
1. Remove the cap to inspect the valve.
2. On a regular tubeless tire valve, the
rubber is molded all the way up to the nose
thread (1).
3. On an OE installed Schrader TPMS snap-
in sensor valve, the molded rubber on
the valve does not reach the thread, l
eaving a section of brass between the
rubber and the OE cap (2). The OE valve may have a long cap also.
4. On an after-market replacement TPMS snap-in sensor valve, the exposed
section of brass is present, but is cover
ed completely when the long cap is fully
screwed onto the stem (3).
Some OE snap-in valves may have the long cap also.
(3)
WHAT
NOT
TO DO DURING ASSEMBLY
1.
NEVER
install a damaged Snap-In sensor
or valve to a wheel rim.
2.
DO NOT
mount the tire to the rim unless
you are sure that the valve has been
installed correctly.
3.
NEVER
re-use an old screw or Snap-In valv
e. Always make sure that a new
Schrader screw and a new Snap-In valve is attached to the transmitter.
4.
NEVER
fit a Snap-In transmitter to unapproved wheel rims.
STORAGE CONDITIONS
1. Schrader TPMS Snap-In sensors should
be stored in a dry,
room temperature
place, where wet and extreme te
mperatures do not exist.
2. Storage temperatures s
hould be between 0°F and 100°F.
DISMOUNTING PROCEDURES USIN
G A TIRE CHANGING MACHINE
STEP 1
Remove valve core and deflate the tire.
Place wheel on the tire changing machine
and break both beads. Make sure the
sensor body is kept away from the bead
buster. Break the bead at 90°, 180° and
270° to the valve.
STEP 3
When the top bead is off, place the sensor
body at 12 o’clock relative to tire changing
machine and remove the bottom bead. Rim
should travel in a clockwise rotation.
STEP 5
Carefully and firmly pull the sensor body
straight back off the valve.
STEP 2
When removing the tire, make sure that the
sensor body is at 12 o’clock relative to the head
of tire changing machine. Rim should travel in
the clockwise direction.
STEP 4
To remove sensor, remove the screw using a
T10 torx screwdriver.
STEP 6
Cut the rubber bulb. Attach a standard TTV
removal tool to the valve. Remove the valve
from the rim by pulling the valve through the rim.
MOUNTING PROCEDURES USING
A TIRE CHANGING MACHINE
STEP 1
A. Attach a
NEW
valve to the Snap-In sensor body using a preset T10 torque screwdriver and a
NEW
Schrader screw.
IMPORTANT!
Make sure that the flat of the valve lines up with the flats of the Snap-In enclosure
as shown in the pictures below.
B. Grip the valve stem and body in the hand and st
art the screw for the first couple of threads.
C. Grip the valve stem
only
and tighten the screw.
D.
DO NOT
hold the Snap-In enclosure while fixing the sc
rew as this will lead to over tightening.
E. Tighten the screw to a torque value of
1.3Nm
using the preset Schrader torque screwdriver.
F. Make sure that the screw is installed correctly
by looking at the head of the screw. The head of the
screw
MUST
be in contact with the metal tag in the body.
STEP 2
Apply tire soap or lube solution to rubber
portion of the valve stem.
STEP 4
Using a standard TTV pull in tool, pull the
valve stem straight through the valve hole
and
NOT
at an angle.
STEP 6
This picture shows a TPMS sensor with a
bad fit. Note that the rubber bulb is not
resting on rim, and will not seal.
STEP 3
Line sensor up with rim hole as shown and
attach a standard TTV pull in tool to the end of
the valve ready for pull in.
STEP 5
The picture below shows the correct fit for the
sensor. Note the rubber bulb of valve resting
against rim and the front face of the sensor body
is NOT touching the rim.
STEP 7
Apply tire soap or lube solution to top and
bottom tire beads.
STEP 8
To fit the bottom bead of the tire, make sure that
the sensor is 90° from the tire changing head in
the clockwise direction as shown below. This
will protect the sensor when the bottom bead
seats.
STEP 10
Once the bottom bead is on the wheel, rotate
the wheel so the sensor is at the 9 o’clock
position in order to fit the top bead.
STEP 12
Inflate tire until the beads seat.
STEP 9
Fit the bottom bead of the tire by rotating the
wheel clockwise, and push down on the bead in
the position shown so t
hat it does not hit the
sensor when the bead seats.
STEP 11
Fit the top bead of the tire by rotating the wheel
clockwise, and pushing down on the bead in the
position shown so that it does not hit the sensor.
STEP 13
Inflate tire per vehicle recommendation.