WB19-07

WARRANTY
BULLETIN
WB19-07
DATE : May 2019
SECTION : 12 BRAKE & PNEUMATIC
EXPIRATION: May 2021
SUBJECT :
BRAKE HOSE CLEARANCE INSPECTION –
VEHICLES WITH INDEPENDENT FRONT
SUSPENSION
First Release
2019-05-10
APPLICATION
NOTICE TO SERVICE CENTERS
Verify vehicle eligibility by checking warranty bulletin status with SAP or via ONLINE WARRANTY
SYSTEM available on Service / Warranty tab of Prevost website.
Model
VIN
H3-41, H3-45 coaches
Model Year : 2013 - 2019
From 2PCH33499DC712235 up to 2PCH33490KC710421 incl.
H3-45 VIP motorhomes
Model Year : 2012 - 2019
From 2PCVS349XCC711910 up to 2PCV33499KC720531 incl.
XLII-45 Entertainer
Model Year : 2012 - 2013
From 2PCYS3494CC735133 up to 2PCYS3498DC735489 incl.
X3-45 VIP commercial use
Model Year : 2014 - 2019
From 2PCCS3497EC735494 up to 2PCCS3490KC736420 incl.
X3-45 VIP motorhomes
Model Year : 2012 - 2019
From 2PCBS3499CC735070 up to 2PCBS3498KC736421incl.
X3-45 coaches
Model Year : 2012 - 2018
From 2PCG33496CC735241 up to 2PCG33497JC736315 incl.
X3-45 coaches
Model Year : 2017 - 2018
From 4RKG33491H9737417 up to 4RKG33499J9737512 incl.
X3-45 coaches
incomplete
2PCS33491HC736203
2PCS33494JC736296
Model Year : 2017 - 2018
2PCS33497HC736206
2PCS33496JC736297
This bulletin does not necessarily apply to all the above-mentioned vehicles, some vehicles may have been modified
before delivery. The owners of the vehicles affected by this bulletin will be advised by a letter indicating the Vehicle
Identification Number (VIN) of each vehicle concerned.
Writer: EL

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DESCRIPTION
On the independent front suspension (IFS) of the vehicles affected by this bulletin, check and make
sure that there is enough clearance between the brake hoses identified in the procedure and their
respective support bracket.
In some cases, it might be necessary to change the position of the hose in order to obtain the necessary
minimum clearance. If signs of rubbing and wear are present, replacement of the damaged hose will be
necessary.
There are two hoses to inspect, one on each side of the vehicle.
PROCEDURE
DANGER
Park vehicle safely, apply parking brake, stop the engine. Prior to working on the vehicle, set the
ignition switch to the OFF position and trip the main circuit breakers equipped with a trip button. On the
Commuter type vehicles, set the battery master switch (master cut-out) to the OFF position.
FIGURE 1 : INSPECT THE TWO (2) HOSES IDENTIFIED ON THE IMAGE
Writer: EL

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PART 1 – CHECKING THE CLEARANCE
1. Check the clearance between the brake hose
and the edge of the support as shown on the
image.
The MINIMUM clearance is 1/2 inch (12 mm)
Inspect two (2) hoses, one on each side of the
coach
FIGURE 2 : DRIVER SIDE (L.H.)
FIGURE 3
FIGURE 4 : CURB SIDE (R.H)
2. If the clearance is 1/2 inch (12 mm) or
greater, no adjustment is necessary.
Writer: EL

WB19-07
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3. If the clearance is less than 1/2 inch (12
mm), it is necessary to increase the
clearance as explained in Part 2 to avoid
rubbing of the hose.
a) If the hose shows signs of rubbing or
wear, change the hose. If the
inspection shows that there is rubbing
of the black and greasy Tectyl coating
only, then the hose does not require
replacement.
Writer: EL

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PART 2 – TO INCREASE THE CLEARANCE
4. Loosen two (2) screws on the hose clamp
(item 1).
5. Loosen the fitting (item 2).
6. Turn the hose near the fitting slightly in order
to increase the clearance.
7. Tighten the fitting while preventing the hose to
rotate in order not to lose the clearance
adjustment.
8. Release the torsion (twist) in the hose. To do
so, turn the hose in the clamps and then
tighten the clamp screws (item 1, figure 5).
FIGURE 5
9. Check the installation. Make sure that the
fittings are tight and that air is not leaking.
FIGURE 6
Writer: EL

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PART 3 – HOSE REPLACEMENT (ONLY IF DAMAGED)
MATERIAL
Replacement parts necessary only if the inspection reveals that a hose replacement is needed.
Order one kit “WB19-07” per hose that needs to be replaced.
Part No.
Description
Qty
507664
NYLON TIE, DOUBLE LOOP BLACK 50lbs
8
641903
HOSE, BRAKE 43 inches long
1
NOTE
Material can be obtained through regular channels.
1. Remove two screws on the hose clamp (item
1).
2. Cut eight (8) nylon ties and then separate the
ABS sensor wire from the hose.
3. Remove the damaged hose.
FIGURE 7
4. Install the new hose. Pay attention to which
direction the hose is to be installed. The fitting
with the longest hexagonal flat goes on the
brake booster side.
5. Reinstall the clamp (see figure 7).
6. Make sure to respect the ½ inch (12 mm)
minimum clearance as mentioned in Part 1 &
Part 2.
FIGURE 8
7. Secure the ABS sensor wire to the hose using
eight (8) nylon ties. Refer to figure 7 & figure 9
for the proper nylon tie locations.
8. Check the installation. Make sure that the
fittings are tight and that air is not leaking.
Writer: EL

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FIGURE 9
Writer: EL

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PARTS / WASTE DISPOSAL
DO NOT RETURN THE REPLACED PARTS. Discard waste according to applicable environmental
regulations (Municipal/State[Prov.]/ Federal)
WARRANTY
This modification is covered by Prevost’s normal warranty.
1. Inspection only (no hose replacement needed)
We will reimburse you 1/4 hour(s) (0.25) of labor upon receipt of a warranty claim. Please submit
claim via our Online Warranty System, available at www.prevostcar.com (under Service \ Warranty
section). Use Claim Type: “Bulletin/Recall” and select ‘’Warranty Bulletin WB19-07 ".
or
2. Inspection and clearance adjustment of one or two hoses
We will reimburse you one hour (1.0) of labor upon receipt of a warranty claim. Please submit claim
via our Online Warranty System, available at www.prevostcar.com (under Service \ Warranty
section). Use Claim Type: “Bulletin/Recall” and select ‘’Warranty Bulletin WB19-07 ".
or
3. Inspection and replacement of one or two hoses
We will reimburse you the parts and one hour (1.0) of labor upon receipt of a warranty claim. Please
submit claim via our Online Warranty System, available at www.prevostcar.com (under Service \
Warranty section). Use Claim Type: “Bulletin/Recall” and select ‘’Warranty Bulletin WB19-07 ".
OTHER
VBC Bulletin
N/A
Fail Code
12.03
Defect Code
09
Syst. Cond
B
Causal Part
641903
Writer: EL
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