TS-S131

SERVICE BULLETIN
Bulletin Type............: Safety Recall
Subject:Firetrace fire suppression system nozzle
replacement
Bulletin No...............: TS-S131
Bulletin Name..........: Nozzle Replacement
Bulletin Ref No.........: 700003560
Summary:This technical service bulletin gives
instructions about how to replace the nozzles of
Firetrace fire suppression system
Revision No…………...:
NHTSA……………........:17V777
Bulletin Responsible:Hande YILDIRIM
Release Date..........: 25.07.2018
Published by&Approved by: Mert SALMAN
Vehicle Model..........: TS45
Fiat Rate Code..........: TSS131
Flat Rate Time..........: 60 min
Welding on the Chassis
• Always disconnect the batteries (starting with the negative lead).
• Disconnect the connectors of electrical and electronic equipment (electronic control units, sensors and
actuators) if they are less than 2 meters away from the chassis part to be welded or the earth terminal of the
welding equipment.
• The earth terminal should never be attached to vehicle components such as engine, axles and springs. Arcing on
these parts is not permitted, because of the risk of damage to bearings, springs, etc.
• The earth terminal must make good contact and be placed as close as possible to the part to be welded.
• Plastic pipes, rubber parts and parabolic springs should be well protected against welding spatter and
temperatures higher than 70°.
• The contact switch must not be in the accessory or contact position. The contact key should be removed.
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GENERAL PRECAUTIONS
1. Suggested Dress Code:
2. Before Starting the Work:
Always wear protective clothing. Do not wear any damaged or loose-fitting clothing
and remove jewelry before starting the work. In case of long hair use hairnet.
The illustration above shows some of the correct and incorrect clothing that should
be worn during work. Sharp edges should be avoided e.g belts, watches, necklaces etc.
3. Interior materials protection:
Seats, trimming, upholstery stuff and carpeting should be protected with appropriate
coverings.
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Instructions
Below instruction needs to be reviewed before the application is done;
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Locations of the 4 nozzles for TS45 vehicle are shown as follow;
1. Nozzle 1 is located at the AC condenser room;
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2. Nozzle 2,3 and 4 can be reached by opening the engine maintenance lid which is
located at the end of the aisle;
2.a Bolts need to be unscrewed to reach out the nozzles;
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2.b One of the nozzles can be reached on the curbside and the other two can be reached on
the driver side which is located under the maintenance lid.
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**Please note that locations of the nozzles may vary according to model year of the coach.
RATE BREAK DOWN
Application
Time
Tool preparation
5 min
Removal & Installation of the maintenance lid
5 min
Removal of the nozzles
25 min
Installation of the nozzles
25 min
Total
60 min
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