Description:

Steering Head Bearing Adjustment - Service Tool

Model Affected:

Trident

The Service Manual for the above model has been updated with the addition of an extra service tool.
The service tool used to hold and tighten the adjuster nut is now T3880750 - Headstock Service Tool. The
service tool used to tighten the lock nut remains the same.

T3880750

T3880750 - Headstock Service Tool
When adjusting the steering head bearings on the above model, follow the process below.

Steering Head Bearing - Adjustment

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.
1.
2.
3.

4.

Raise and support the front of the motorcycle.
Release the fixings securing the handlebar clamp to the upper yoke, detach the clamp and release the
handlebar.
As an assembly, raise the handle bars until clear of the upper yoke. Rest the assembly forward of the
steering stem such that access to the headstock top nut and the adjustment nuts is unrestricted.
Ensure the master cylinder remains in an upright position.
Loosen the upper yoke pinch bolts.

Warning
If the lower yoke fixings are also loosened, the forks will no longer support the weight of the motorcycle.
Do not loosen the lower yoke fixings as, in this condition, the motorcycle could topple over causing damage
and/or risk of injury.

Caution
Care must be taken when removing the upper yoke centre nut, to ensure that the centre nut and upper
yoke do not become scratched. Protect the surfaces with a suitable cloth or tape to prevent scratching.

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5.

Remove the upper yoke centre nut from the steering stem.

1

1.

6.

Upper yoke centre nut

Ease the upper yoke and instrument assembly from the forks and support while detached.

Note:
•

When adjusting the bearing free play, ensure that the threaded part of the stem is free from grease.

Note:
•

Keep the torque wrench at 90 degrees to the centre line of service tool T3880750 when you tighten
the adjustment nut in the stage that follows. This will apply the correct torque to the adjustment nut.

7.

Adjust the bearing free play as follows, using service tool T3880023 and service tool T3880750:
• Remove the lock nut and tab washer using service tool T3880023. Discard the washer.
• Thoroughly clean the threads on the steering stem.
• Loosen the adjuster nut using service tool T3880750, then tighten to 40 Nm. Keep the torque
wrench at 90 degrees to the centre line of the tool.
• Loosen the adjuster nut using service tool T3880750, then retighten to 10 Nm. Keep the torque
wrench at 90 degrees to the centre line of the tool.

1

2

90°
1.
2.

T3880750 - Headstock Service Tool
Torque wrench

• Fit a new tab washer and the lock nut.

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Warning
It is essential that the adjuster nut is not over-tightened. If the adjuster nut is over-tightened it will cause
a pre-load on the headstock bearings. This will introduce tight steering, which could cause loss of control
and an accident.
• Hold the adjuster nut in position while tightening the lock nut to 40 Nm.

2

3

1

cdbo1

1.
2.
3.

8.
9.
10.
11.
12.
13.

Adjuster nut
Lock nut
T3880023 - 50 mm Socket

Refit the upper yoke and instrument assembly to the forks.
Fit the upper yoke centre nut and tighten to 90 Nm.
Tighten the upper yoke pinch bolts to 26 Nm.
Locate the handlebar assembly in the lower halves of the clamps. Fit the upper clamps and bolts.
Rotate the handlebars so that the alignment mark on the handlebar aligns with the split line.
Tighten the front clamp bolts to 26 Nm, then the rears.

1

1.
2.

2

Alignment mark
Split line

14. Recheck the bearing adjustment (see Steering Head Bearing - Check in the Service Manual).
When ordering replacement parts, refer to the EPC.

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Item:

218.3

Description:

Pinpoint Test - Coolant Temperature Sensor

Model Affected:

Trident

The pinpoint test for the Coolant Temperature Sensor (DTC P0115 and P0117) has been amended for the
above model. This information changes the pinpoint test contained in the Fuel System and Engine
Management section of the current Service Manual.
The revised pinpoint test is as described below.
Fault Code

Possible cause

Action

P0115

Engine coolant temperature
sensor open circuit or short
circuit to 5 Volt sensor supply

View and note diagnostic
software freeze frame data if
available
View and note diagnostic
software sensor data
Ensure sensor connector is
secure
Disconnect Engine ECM and
proceed to pinpoint test 1

P0117

Engine coolant temperature
sensor short circuit to ground

Disconnect sensor and proceed
to test 4

Pinpoint Tests
Test
1

Result

Action

Check cable and terminal integrity:
- Engine ECM pin B20

OK

Proceed to test 2

Faulty

Rectify fault, proceed to test 6

2 Check resistance value:
- Engine ECM pin B20 to ground
(Temperature dependent - see below)

OK

Disconnect temperature sensor and
proceed to test 6

Open circuit

Disconnect temperature sensor and
proceed to test 3

Short circuit

Disconnect temperature sensor and
proceed to test 4

3 Check cable continuity:
- Engine ECM pin B20 to sensor pin 1
- Ground to sensor pin 2

OK

Proceed to test 4

Open circuit

Locate and rectify wiring fault, proceed
to test 6

4 Check cable for short circuit:
- Engine ECM pin B20 to ground

OK

Proceed to test 5

Short circuit

Locate and rectify wiring fault, proceed
to test 6

5 Check sensor resistance:
- Sensor pin 1 to sensor pin 2
(Temperature dependent - see below)

OK

Proceed to test 6

Faulty

Renew temperature sensor, proceed to
test 6

6 Reconnect harness, clear fault code
and run engine to verify fault cleared.

OK

Action complete - quit test

Fault still present

Contact Triumph service

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Resistance Data
Resistance data under typical conditions:
Warm engine (80°C): 200 to 400 Ohms
Cold engine:
20°C ambient 2.35 to 2.60 K Ohms
-10°C ambient 8.50 to 10.20 K Ohms

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Circuit Diagram

1
12
23

11
22
33

1
2

1

1.
2.

1

GK

GK

B20

2

BY

BY

B12

2

Engine ECM Connector B
Coolant Temperature Sensor

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.

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Item:

218.4

Description:

Triumph Shift Assist

Model Affected:

Trident

On the above model if the battery has been disconnected/connected, the Triumph shift assist (TSA) will be
disabled when the battery is reconnected.
To enable the TSA, follow the procedure described below.
• From the Bike Setup menu, press the Up and Down buttons to select TSA.

TSA
Indicators
TC
Service
• Press the Right button to view the available options.

Enabled
Disabled

• Press the Up and Down buttons to select Enabled or Disabled.
• Press the Select button to confirm. A tick is shown to indicate the selected option.

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Item:

218.5

Description:

Battery Terminal Connections

Model Affected:

Trident

The Service Manual for the above model has been updated to include further information about the
installation of the battery and the orientation of the battery leads.
When installing the battery on the above model, follow the process below.

Battery - Installation

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.

Warning
Ensure that the battery terminals do not touch the motorcycle frame as this may cause a short circuit or
spark, which would ignite battery gases causing a risk of personal injury.
Note:
•

Once the battery has been reconnected the rider’s configuration settings should be reset as noted
prior to the battery being disconnected.

Warning
If the battery has been disconnected or the fuses removed for any reason advise the rider to confirm the
original mode settings have been correctly set. Failure to reset the motorcycle to the rider’s preferred rider
mode settings and subsequently being ridden may cause loss of motorcycle control and an accident.
1.
2.

Place the battery into the battery tray and install the battery insert.
Reattach the battery strap.

Note:
•
•
3.

The battery positive and negative leads are to be connected to the vertical face of the battery
terminals.
The battery positive lead routes underneath the diagnostic connector cable and clips to the Engine
ECM moulding.
Reconnect the battery, positive (red) lead first, routing the positive lead underneath the diagnostic
connector cable, and tighten the battery terminals to 4.5 Nm.

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4.

Make sure the battery positive (red) lead is clipped to the engine ECM tray.

1
4

2
3

1.
2.
3.
4.

5.

Battery positive terminal
Battery positive lead
Retaining feature on engine ECM moulding
Diagnostic connector cable

Apply a light coat of grease to the terminals to prevent corrosion.

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6.

Cover the positive terminal with the protective cap.

1

5
1.
2.
3.
4.
5.

2

4

3

Negative (black) terminal
Battery
Battery strap
Positive (red) terminal
Battery insert

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.

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

Technical Bulletin 218 Issue 1

Sales Manager

Workshop
Supervisor

Technician 1

Technician 2

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