BLUE BIRD,

S19AB

June 14, 2019
To: Blue Bird Owner
Subject: S19AB, Separator Clamp Removal on Gasoline With Heat Shield
Models Affected: Model Year: Certain 2020

Model: Vision School Bus and Vision Non-School Bus
Bulletin Duration: One (1) Year from Date of Issue
Overview:

Service Bulletin S19AB, Separator Clamp Removal on Gasoline with Heat Shield affects certain model
year 2020 Visions with a Ford gasoline powertrain and heat shield. To correct this condition, the Dealer
is to cut the zip ties and remove the swivel saddle, if the heat shield is installed.

Affected Units:

On certain 2020 model year Blue Bird Vision School Buses manufactured from October 31, 2018 through
March 16, 2019 and certain model year Blue Bird Vision Non-School Buses manufactured from
November 15, 2018 through February 7, 2019, the Dealer is to cut zip ties and remove the swivel saddle
if heat shield is installed. A separate printout will be provided listing all buses in your territory that are
affected by this service bulletin. Service Bulletin S19AB will be mailed to all owners on record. Be sure
to review your list and advise of any incorrect owner names and/or addresses.

Repair Parts:
No repair parts are required.

Time Allowance:
Time allowed to complete the S19AB remedy to cut the zip ties and remove the swivel saddle in each
bus is 0.1 hours.

Completion Notification:

If you perform this service bulletin yourself or have an outside repair facility perform this bulletin, please
notify your Blue Bird Dealer, when the repair is completed. Send the body number, repair date, and
odometer reading to your Blue Bird Dealer. If you request reimbursement for labor, also send a copy of
the work order/invoice to your Blue Bird Dealer.

BLUE BIRD BODY COMPANY
3920 Arkwright Road, Suite 200, Macon, GA 31210 — (478) 825-2021
BLUE BIRD,

Blue Bird Body Company S19AB
Page 2

If the modification directed by this notification was performed on your unit prior to the receipt of this
notification, you may be eligible to receive reimbursement for the cost of obtaining a pre-notification
remedy of the subject matter of the campaign. Please provide a copy of all receipts to
[email protected] .

Bulletin Duration:
This Service Bulletin ends one (1) year from date of issue.

Repair Facility:

We encourage you to contact your Blue Bird Dealer to arrange to have this Service Bulletin performed.
However, you may elect and have the option to perform this Service Bulletin yourself or have a qualified
repair facility convenient to you perform this work. A qualified technician must perform work required
under this bulletin.

Questions:
Questions regarding this bulletin should be directed to your local Blue Bird Dealer or Blue Bird Field
Service Engineer.

eS Service Bulletin S19AB Separator Clamp Removal on Gasoline with Heat Shield

BLUE BIRD.

Models Affected: Certain Model Year 2020 Vision's with a Ford Gasoline Powertrain and Heat Shield

Issue:
1. Shifter cable secured to gasoline fuel line with swivel saddle and to the heat shield. If no heat shield is installed then the swivel saddle MUST remain installed.
2. PCV valve tubing secured to gasoline fuel line with zip tie.

Corrective Action: Cut zip ties and remove swivel saddle

WARNING: Always follow all Federal, State, Local and Shop safety standards. Use proper safety equipment, and thoroughly read & understand all instructions before performing these procedures
Park bus on tevel surface, apply parking brake, turn off ignition key, and chock wheels

Instructions:

1. Determine if a heat shield is installed and if the shifter cable is attached to the heat shield using a button head zip tic, Part Number 00024076. (Photo 1)

2. Ifthe shifter cable is secured to the heat shield with the button head zip tie, then locate the swivel saddle at the top left rear of engine and cut the zip ties to remove and discard swivel saddle, if installed
between fuel line and shifter cable. (Photo 2)

3. Inspect the fuel line and shifter cable for chaffing/rubbing and replace, if necessary.

4. Check for securement of PCV valve tubing to fuel line and remove zip tie, if secured. (Photo 3)

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