Authorized Field Change

26901
June 2026
SUBJECT: Entrance Door Set Screw Replacement.
MODELS: 2025 thru 2027 IC Bus™ CE Series school buses and IC Bus™
Electric CE Series school buses (PB11000, PC11000, and PB11E00).
Start Date: 02/05/2024
End Date: 05/25/2026
DESCRIPTION: Certain 2025 thru 2027 IC Bus™ CE Series school buses and
IC Bus™ Electric CE Series school buses entrance doors may fall out of
adjustment over time and with use. A door that is not adjusted properly may
result in an improperly closed door and trigger an open door warning light on the
dashboard.
CUSTOMER LETTER: Print ready (PDF file) copy of the Customer Letter
ELIGIBILITY:This procedure applies ONLY to vehicles marked in the
International® Service Portal℠ with Authorized Field Change 26901 that have not
had FSC 26104 completed. Also complete any other open campaigns listed on
the Service Portal at this time.
NOTE: For buses that have FSC 26104 completed, no further action is
required as it is the same repair.
TOOLS REQUIRED:
Description

Tool Number

5/16 in-24 tap

Source locally

0.272 in Diameter Letter “I” Drill Bit or equivalent

Source locally

Drill

Source locally

Table 1 Tools Information

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

1

PARTS INFORMATION:
Part Number

Part Description

2527197C1

5/16 in-24 Carbon Steel Set Screw

2

476074C1

Nut, Battery terminal 3/8 in UNC

1

Source locally

Loctite 242, medium strength, BLUE liquid

Quantity

As
required

Table 2 Parts Information

SERVICE PROCEDURE
WARNING! To prevent personal injury and / or death, or damage to
property, park vehicle on hard flat surface, turn the engine off, set the
parking brake and install wheel chocks to prevent the vehicle from moving
in either direction.
WARNING! To prevent personal injury and / or death, or damage to
property, if the vehicle must be raised, do not work under the vehicle
supported only by jacks. Jacks can slip or fall over.
WARNING! To prevent personal injury and / or death, or damage to
property, always wear safe eye protection with side shields when
performing vehicle maintenance.
WARNING! To prevent personal injury and / or death, or damage to
property, allow engine / vehicle components to cool before servicing.
WARNING! To prevent personal injury and / or death, or damage to
property, keep flames or sparks away from vehicle and do not smoke while
servicing the vehicle’s batteries. Batteries expel explosive gases.
WARNING! To prevent personal injury and / or death, or damage to
property, remove the ground cable from the negative terminal of the battery
box before disconnecting any electrical components. Always connect the
ground cable last.

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

2

WARNING! To prevent personal injury and / or death, or damage to
property, NEVER service a high-voltage vehicle without completing HighVoltage Safety Training. Before working on vehicle, read and obey HighVoltage Safety, and Lock-Out Tag-Out safety procedures and information.
WARNING! To prevent personal injury and / or death, wear and use
approved high-voltage Personal Protection Equipment (PPE) when near a
high-voltage electric vehicle. Inspect PPE before use. Do not use gloves or
other PPE with expired dates, holes, cracks, or damage. NEVER touch
energized ORANGE high-voltage cables or high-voltage components
without wearing approved high voltage PPE.
WARNING! To prevent personal injury and / or death, or damage to
property, read all information in the Safety Information and High-Voltage
Safety sections of the service manual.
1. Park vehicle on flat surface with wheels straight ahead.
2. Shift transmission to Park or Neutral and set parking brakes.
3. Turn vehicle ignition to Key OFF position.
4. If equipped, turn 12V disconnect to the OFF position.
5. Install wheel chocks.
6. If equipped, drain the air tanks.
7. Disconnect and isolate the negative battery terminal.

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

3

Figure 1. Entry Door Overhead Compartment
1. 8 mm push-in fastener (4)
2. 12─14 x 0.75 mm pan head Torx screw
3. M6 x 20 mm flanged Torx screw (3)

8. Remove four 8 mm push-in fasteners (Figure 1, Item 1) from entry door
overhead compartment.
9. Remove three M6 x 20 mm flanged Torx screws (Figure 1, Item 3) and
one 12─14 x 0.75 mm pan head Torx screw (Figure 1, Item 2) from entry
door overhead compartment, then remove the panel for access.
10. Confirm if the bus entry door is air actuated or electric.
a. If the bus entry door is air actuated, proceed to Step 11.
b. If the bus entry door is electrically actuated, proceed to Step 32.

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

4

AIR ACTUATOR REPAIR PROCEDURE

Figure 2. Entrance Door Collar
1. Allen set screw
2. Door collar

11. Remove and discard Allen set screw (Figure 2, Item 1) located on door collar
(Figure 2, Item 2) to allow pivots to be removed from door collar. Repeat for both
entrance doors.

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

5

Figure 3. Pneumatic Actuator Electrical Connector
1. Electrical connector

12. Disconnect electrical connector (Figure 3, Item 1).

Figure 4. Entrance Door Air Actuator
1.
2.
3.
4.

M8 x 16 bolt (4)
Entrance door pneumatic actuator assembly
Entrance door pneumatic actuator air line
Mounting plate

13. Disconnect entrance door pneumatic actuator air line (Figure 4, Item 3).
14. Remove four M8 x 16 bolts (Figure 4, Item 1) from pneumatic actuator assembly
mounting plate (Figure 4, Item 4).

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

6

15. Remove entrance door pneumatic actuator assembly (Figure 4, Item 2) with
mounting plate (Figure 4, Item 4).

Figure 5. Entrance Door Lower Male Hinge
1. Lower male hinge

16. With entrance door in an open position, gently lift entrance door up to release
lower male hinge (Figure 5, Item 1).

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

7

Figure 6. Entrance Door Upper Female Hinge
1. Upper female hinge

17. Gently tilt and lower door out of frame to release the upper female hinge (Figure
6, Item 1).
18. Place door flat on a protected surface.

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

8

Figure 7. Set Screw Location
1. Set screw hole

19. Drill a new hole where the set screw was (Figure 7, Item 1), ensuring it is straight
as possible. The new hole should have a 0.272 in diameter.
20. Tap the new hole with a 5/16 in-24 tap. Deburr and remove any metal shavings.
21. Apply Loctite 242, medium strength, BLUE liquid to the set screw threads, and
partially insert the new 5/16 in-24 set screws into the new threaded hole.
22. Repeat Steps 16–21 for the other door leaf.

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

9

Figure 8. Entrance Door Upper Female Hinge
1. Upper female hinge

23. Gently tilt and raise door into frame, ensuring that upper female hinge (Figure 8,
Item 1) slides into place.

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

10

Figure 9. Entrance Door Lower Male Hinge
1. Lower male hinge

24. With entrance door in an open position, gently lift entrance door up to insert lower
male hinge (Figure 9, Item 1).
25. Repeat Steps 23–24 for the other door leaf.

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

11

Figure 10. Entrance Door Pneumatic Actuator
1.
2.
3.
4.

M8 x 16 bolt (4)
Entrance door pneumatic actuator
Entrance door pneumatic actuator air line
Mounting plate

26. Place pneumatic actuator assembly above door frame, ensuring that the door
pivots are seated within door collar.
27. Secure pneumatic actuator assembly with four M8 x 16 bolts (Figure 10, Item 1)
and tighten to 23–26 lb-ft (31–35 N·m).
28. Install entrance door pneumatic actuator air line (Figure 10, Item 3).

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

12

Figure 11. Pneumatic Actuator Electrical Connector
1. Electrical connector

29. Install electrical connector (Figure 11, Item 1).

Figure 12. Entrance Door Collar
1. Set screw
2. Door collar

30. Tighten set screw (Figure 12, Item 1) located on door collar (Figure 12, Item 2) to
200 lb-in (22.6 N·m). Repeat for both entrance doors.
31. Proceed to Step 52.
© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

13

ELECTRIC ACTUATOR REPAIR PROCEDURE

Figure 13. Electric Door Motor Electric Connections
1. Electric motor connector (2)
2. Door latch connector (2)

32. Disconnect two door latch connectors (Figure 13, Item 2).

© 2026 International Motors, LLC*. All rights reserved.
All marks are trademarks of their respective owners.
*International Motors, LLC d/b/a International Motors USA LLC in Illinois and Ohio.

14

Figure 14. Entrance Door Electric Motor
1.
2.
3.
4.