The chain rubbing strip for the above models was changed at VIN AE7913 and the dampers that were fitted
into the chain rubbing strip were deleted.
The service kit T3990129 now includes the chain rubbing strip part number T2052083. This chain rubbing
strip can be fitted to all of the above models from the start of production.
• If you have an early service kit T3990129 that includes chain rubbing strip part T2051084 and dampers
T2050997 and T2050998, you can still install these parts.
• If you have a service kit that includes chain rubbing strip part number T2052083 but also includes
dampers T2050997 and T2050998, you cannot fit the dampers to this chain rubbing strip. Discard the
dampers.
• Dampers T2050997 and T2050998 are now deleted from service kit T3990129.
Please mark your copy of the Service Manual with this information. For electronic service manuals, store
this information in a readily accessible place and refer to it when working on the relevant Triumph
motorcycle. This information will be included in the next service manual update.
When ordering replacement parts, refer to the EPC.

Technical Bulletin 219 Issue 1

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Item:

219.4

Description:

Triumph Diagnostic Tool - Suspension Diagnostics - Rear Preload Motor Function
Tests

Model Affected:

Tiger 900 GT Pro

The rear preload motor function tests have been updated for the above model in the Suspension
Diagnostics area of the Triumph Diagnostic Tool. The function tests now feature a guided workflow and are
available from the TDT 2021-11 update onwards.
Changes are as follows:

Test Rear Preload Motor
There were previously two separate function tests (Rear Preload Motor Up and Rear Preload Motor Down).
These have been combined under one rear preload motor function test.
Upon clicking Start, the tool will provide Up and Down buttons to allow the preload motor to be driven up
and down.

A Next button is also provided. Upon clicking Next, the tool will end the test and will automatically proceed
to calibrate the rear preload motor. The tool will display onscreen instructions to guide users through the
calibration process as described below.

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Calibrate Rear Preload Motor
The new guided workflow ensures that the motorcycle is in the correct condition to allow the rear preload
motor calibration to start.
It is no longer necessary to disconnect the diagnostic tool interface from the motorcycle after starting the
rear preload motor calibration process.
The tool will display onscreen instructions to guide users through the rear preload motor calibration
process:
• The tool will provide prompts on when to turn the motorcycle ignition OFF and ON.
• The tool will indicate when the rear preload motor calibration is in progress, and will provide
confirmation when the calibration process has completed.

Service Manual Procedure Updates
The following procedures are updated as a result of the above changes.
• Rear Suspension Unit Preload Motor - Calibration. See Appendix A - Rear Suspension Unit - Rear
Preload Motor Calibration, page 12.
• Rear Preload Motor Up/Down Function Tests. See Appendix B - Test Rear Preload Motor, page 14

Circulation
Initial and date when read and return to central file holder
Service Manager Parts Manager

Technical Bulletin 219 Issue 1

Sales Manager

Workshop
Supervisor

Technician 1

Technician 2

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Item:

219.5

Description:

Appendix A - Rear Suspension Unit - Rear Preload Motor Calibration

Model Affected:

Tiger 900 GT Pro

The rear preload motor must be calibrated under the following circumstances:
• After installation and setup of a new suspension ECM.
• After removal/installation of the rear suspension unit.
Note:
•
•

If installing a new suspension ECM, the rear preload motor will calibrate automatically after turning the
ignition switch ON.
If the rear suspension unit has been removed/refitted, the Triumph Diagnostic Tool must be used to
calibrate the rear preload motor.

Before Calibrating the Rear Preload Motor
Before calibrating the rear preload motor, check that the following motorcycle ECMs have the latest
calibrations installed:
• Engine ECM
• Chassis ECM
• Suspension ECM
• Instruments

Calibrating the Rear Preload Motor using the Triumph Diagnostic Tool

Warning
Make sure the motorcycle is stabilised and adequately supported.
A correctly supported motorcycle will help prevent it from falling.
An unstable motorcycle may fall, causing injury to the operator or damage to the motorcycle.
Note:
•

Make sure the motorcycle battery is fully charged before calibrating the rear preload motor.

1.
2.
3.
4.
5.

Park the motorcycle on it's side stand.
Remove the rider’s seat.
Connect the Triumph Diagnostic Tool to the motorcycle and turn the ignition On.
From the main menu click CHASSIS DIAGNOSTICS, then click SUSPENSION DIAGNOSTICS.
When the diagnostic tool has connected, click the Function Tests tab and select Calibrate Rear Preload
Motor from the menu.

Note:
•

Upon clicking START, the diagnostic tool will send a command to the suspension ECM to perform an
RSU preload motor calibration the next time the ignition is switched On.

6.

Click Start, then follow the onscreen instructions.
• The tool will provide prompts on when to turn the motorcycle ignition OFF and ON.
• The tool will indicate when the rear preload motor calibration is in progress, and will provide
confirmation when the calibration process has completed.
Click Finish when the rear preload motor calibration process has completed.

7.

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While Rear Preload Motor Calibration is in Progress
Note:
•

•

•
•

1.
2.

When the rear preload motor is calibrating, the suspension warning light will flash on the instrument
display and a message will be displayed indicating that the TES (Triumph Electronic Suspension) system
is calibrating.
The motorcycle must remain stationary while the rear preload motor is calibrating. If the motorcycle is
moved or ridden, this will halt the calibration process and the suspension warning light will be
illuminated. In this situation the calibration process will be restarted the next time the ignition switch
is turned Off for more than 30 seconds, then turned On again.
When the calibration process is complete, the suspension warning light will stop flashing and the
instruments will briefly display a message indicating that calibration has completed.
After calibration has completed, the motorcycle may then proceed to adjust the rear preload motor to
the settings selected on the instrument menus. In this situation, the instruments will briefly display a
message indicating that the TES system is adjusting. When adjustment is complete, the instruments
will return to the normal display.
Do not move or ride the motorcycle while the rear preload motor is calibrating.
Wait for the suspension warning light to stop flashing to confirm the that the rear preload motor
calibration is complete.

After Rear Preload Motor Calibration has Completed

Warning
Never start the engine or let it run for any length of time in a closed area. The exhaust fumes are
poisonous and may cause loss of consciousness and death within a short time. Always operate the
motorcycle in the open-air or in an area with adequate ventilation.
1.

Start the engine and check that the suspension warning light remains off. If the warning light resumes
flashing, the rear preload motor is being recalibrated due to low battery voltage. Wait for the warning
light to stop flashing before turning the engine off.
2. When the calibration has successfully completed, reconnect the Triumph Diagnostic Tool and erase any
stored DTCs.
3. Refit the rider’s seat.
4. Road test the motorcycle then recheck for any warning lights or stored DTCs. Investigate and rectify
any faults as necessary.
Please mark your copy of the Service Manual with this information. For electronic service manuals, store
this information in a readily accessible place and refer to it when working on the relevant Triumph
motorcycle. This information will be included in the next service manual update.

Technical Bulletin 219 Issue 1

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Item:

219.6

Description:

Appendix B - Test Rear Preload Motor

Model Affected:

Tiger 900 GT Pro

The Test Rear Preload Motor function test provided in the Triumph Diagnostic Tool may be used as follows:
• To test the rear preload motor operation.
• To attempt to free the rear preload motor if it is stuck at an end stop.

Warning
Make sure the motorcycle is stabilised and adequately supported.
A correctly supported motorcycle will help prevent it from falling.
An unstable motorcycle may fall, causing injury to the operator or damage to the motorcycle.

To Access the Test Rear Preload Motor Function Test
1.
2.
3.

Connect the Triumph diagnostic tool to the motorcycle and turn the ignition On.
From the main menu click CHASSIS DIAGNOSTICS, then click SUSPENSION DIAGNOSTICS.
When the diagnostic tool has connected, click the Function Tests tab and select Test Rear Preload
Motor from the menu.

Testing Rear Preload Motor Operation

Caution
If the rear preload motor adjustment position reaches its maximum or minimum adjustment end stop, do
not continue to drive the motor towards the end stop.
Select the test direction that will drive motor away from the end stop as described later in this procedure.
Repeatedly driving the rear preload motor against an end stop may cause the motor to overheat, which
can result in permanent damage.
Note:
•
•
•
•

The position of the rear preload motor adjustment can be checked visually as follows:
At the maximum preload end stop, the preload adjustment collar is fully extended from the base of the
motor housing. Approximately 10 mm of the adjustment collar is visible as shown below.
At intermediate preload adjustment positions, less of the adjustment collar will be visible as the
adjustment position moves closer to the minimum preload end stop.
At the minimum preload end stop, the preload adjustment collar is fully retracted into the motor
housing.

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1.
2.
3.

Rear preload motor housing
Adjustment collar (maximum preload position - fully extended)
Adjustment collar (minimum preload position - fully retracted)

Warning
Never start the engine or run the engine in a confined area. Exhaust fumes are poisonous and can cause
loss of consciousness and death within a short period of time. Always operate your motorcycle in the
open-air or in an area with adequate ventilation.
1.

Start the engine.

Note:
•
•
•
•
•

•
2.

3.

If the rear preload motor is positioned at or near the minimum or maximum adjustment end stop, the
motor must first be driven away from the end stop, before testing in the opposite direction.
If the rear preload motor is at or near maximum preload (adjustment collar fully extended), click the
down button first.
If the rear preload motor is at or near minimum preload (adjustment collar fully retracted), click the Up
button first.
Upon clicking the Up or Down buttons, the rear preload motor adjustment collar will move
approximately 1.0 mm in the selected direction.
It will take approximately ten repeated button clicks in either direction to operate the preload motor
through its full adjustment range, however It is not necessary to do this to verify correct motor
operation. Three to five repeated button clicks are sufficient to verify motor operation.
If the preload motor is operated through its full adjustment range (ten repeated button clicks), allow
the motor to cool for five minutes before running further tests.
Click the Up or Down buttons as required and observe the rear preload motor adjustment collar
movement. Wait for a few seconds between each button click to allow the rear preload motor time to
operate.
Verify correct motor operation in both directions.

Note:
•

If no adjustment collar movement can be observed, check for any stored DTCs. Rectify as necessary
and repeat the rear preload motor test. If the rear preload motor still doesn’t function correctly,
contact Triumph service.

4.
5.

When finished testing, click the Next button to proceed.
The tool will automatically proceed to calibrate the rear preload motor. Follow all onscreen instructions.
Refer to Appendix A - Rear Suspension Unit - Rear Preload Motor Calibration, page 12 for further
information.
Click Finish when rear preload motor calibration has completed.

6.

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Attempting to Free a Stuck Rear Preload Motor
If the rear preload motor appears to be stuck at the maximum or minimum adjustment end stop, the
function test can be used to attempt to free the motor as follows.

Warning
Never start the engine or run the engine in a confined area. Exhaust fumes are poisonous and can cause
loss of consciousness and death within a short period of time. Always operate your motorcycle in the
open-air or in an area with adequate ventilation.
1.
2.

Start the engine.
Visually Check the position of the rear preload motor as described above.

Note:
•
•
•

If the rear preload motor appears to be stuck at the minimum or maximum adjustment end stop, drive
the motor away from the end stop using the appropriate test direction as follows.
Motor stuck at maximum preload (adjustment collar fully extended), use the Down button.
Motor stuck at minimum preload (adjustment collar fully retracted), use the Up button.

Caution
Only use three attempts (three button clicks) at a time to attempt to free the preload motor.
After using three attempts, allow the motor to cool for five minutes before making any further attempts.
Failure to allow the motor to cool may cause it to overheat, which can result in permanent damage.
3.

Click the Up or Down button as required to attempt to drive the rear preload motor away from the end
stop. Wait for a few seconds between each button click to allow the rear preload motor time to operate.

Note:
•

If after three attempts to free the motor no adjustment collar movement can be observed, allow the
motor to cool for five minutes then make three more attempts.

4.
5.

When finished testing, click the Next button to proceed.
The tool will automatically proceed to calibrate the rear preload motor. Follow all onscreen instructions.
Refer to Appendix A - Rear Suspension Unit - Rear Preload Motor Calibration, page 12 for further
information.
Click Finish when rear preload motor calibration has completed.

6.

Note:
•
•
•

If it is not possible to free the rear preload motor, check all motorcycle ECMs for stored DTCs.
Investigate and rectify any faults as necessary then make a further attempt to free the motor as
described above.
If it is still not possible to free the rear preload motor, contact Triumph service.

Please mark your copy of the Service Manual with this information. For electronic service manuals, store
this information in a readily accessible place and refer to it when working on the relevant Triumph
motorcycle. This information will be included in the next service manual update.

Technical Bulletin 219 Issue 1

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