NHTSA ID Number: 10126467
Manufacturer Communication Number: Wb15-19F
TSB/Document Date: 2017-12-22
Summary
On the vehicles affected by this bulletin, vibration is causing damage to A/C compressor and compressor harness connectors. Addition of a reinforcement bracket to Bitzer A/C compressor is needed to increase the installation stiffness and reduce vibration amplitude.
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TSB/Document ID: Wb15-19F
Replacement Service Bulletin Number:
MFR Communication Date: 2016-03-22
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:APPLIANCE:AIR CONDITIONER
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
WARRANTY
BULLETIN
DATE :
EXPIRATION:
SUBJECT :
OCTOBER 2015
OCTOBER 2017
WB15-19F
SECTION :
22 - HVAC
BITZER A/C COMPRESSOR VIBRATION –
ADDITION OF A REINFORCEMENT BRACKET
TO THE MOUNTING
Rev F:
THIS WARRANTY BULLETIN SUPERSEDES PREVIOUS VERSIONS
March 22, 2016 BOM: now kit WB15-19. WB15-19 supersedes 457769.
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
2PCH33494DC712272
Model Year : 2013 - 2015
And from 2PCH33499DC712364 up to 2PCH33495FC712994 incl.
The following individual vehicles:
H3-45 VIP motorhomes
Model Year : 2013 - 2015
2PCVS3499DC712399, 2PCVS3499DC712452, 2PCVS3490EC712468,
2PCVS3494EC712473, 2PCVS3490EC712549, 2PCVS3496EC712555,
2PCVS3493EC712612 , 2PCVS3495EC712689
And from 2PCVS3495FC712709 up to 2PCVS349XFC712950 incl.
equipped with Bitzer A/C compressor
X3-45 coaches
2PCG33491DC735388, 2PCG33492DC735433
Model Year : 2013 - 2016
From 2PCG33497EC735459 up to 2PCG33494GC735910 incl.
X3-45 VIP motorhomes
Model Year : 2014 - 2015
X3-45 VIP commercial use
Model Year : 2015
XLII-45 Entertainer
Model Year: 2013
2PCBS3499FC735798, 2PCBS3498FC735808, 2PCBS3490FC735818
From 2PCCS349XFC735748 up to 2PCCS3496FC735911 incl.
equipped with Bitzer A/C compressor
2PCYS3492DC735374, 2PCYS3490DC735468
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.
WB15-19F
Page 2 / 18
DESCRIPTION
On the vehicles affected by this bulletin, vibration is causing damage to A/C compressor and compressor
harness connectors. Addition of a reinforcement bracket to Bitzer A/C compressor is needed to increase
the installation stiffness and reduce vibration amplitude.
IMPORTANT NOTE FOR VEHICLES INCLUDED IN WB14-06:
This previous bulletin must have been completed before starting WB15-19.
If bulletin WB14-06 has been completed, you should see on the engine curbside harness support two fitting
arrangements for pressure sensors and switches SE23; SE29 SE24.
If required, the latest version of WB14-06 is available through Prevost Technical Publications site.
MATERIAL
Order WB15-19 which includes:
Part No.
Description
Qty
069206
HARNESS, A/C COMPRESSOR (1x)
1
062490
DOUBLE WALL SHRINK TUBE .250" - .125" / BLACK, 6" long
2
069356
DECAL
1
457675
REINFORCEMENT BRACKET, A/C COMPRESSOR
1
502949
SCREW, BUTTON HD HEX SOCKET M10 x 25lg SS [LINNIG
CLUTCH]
1
504637
CABLE TIES, NYLON 3/16" x 13"
20
507664
CABLE TIE, NYLON 3/16" x 11" DOUBLE LOOP HEAD
5
509815
TREE MOUNT, FT
1
562228
BUTT SPLICE16-14 AWG
2
950576
COIL, UNLOADER ASSEMBLY
1
950577
O-RING, COMPRESSOR UNLOADER COIL
1
5001616
SOCKET HEAD CAP SCREW M10-1.5X25 LG [LANG CLUTCH]
2
Bulk material that may be required:
Part No.
Description
Qty
950533
COIL, ELECTROMAGNETIC CLUTCH, [LANG CLUTCH]
1
-
MOLYCOTE G-rapid-plus 400ml spray can [LANG CLUTCH]
20ml
(http://krayden.com/buy/dc-g-rapid-plus-400ml-spray-can.html)
WB15-19F
Page 3 / 18
NOTE
Material can be obtained through regular channels.
TOOLS
Lang clutch extractor tool # 7770159
REPAIR PROGRESS CHECKLIST
•
MATERIAL
MATERIAL REQUIRED IS IN STOCK
OPTIONAL MATERIAL IS AVAILABLE
•
REINFORCEMENT BRACKET INSTALLATION
LANG CLUTCH INSPECTED AND REPLACED IF APPLICABLE
SHAFT SEAL DRAIN TUBE REINSTALLED ON OPPOSITE SIDE
REINFORCEMENT BRACKET INSTALLED
BOLTS C & E TIGHTENED AS PER PRESCRIBED TORQUE
WARNING DECAL AFFIXED
CLUTCH COIL MOUNTING SCREWS TIGHTENED AS PER PRESCRIBED TORQUE
ROTOR MOUNTING SCREW G TIGHTENED AS PER PRESCRIBED TORQUE
BELT TENSION ADJUSTED
BELT TENSIONER SCREW AND NUT PROPERLY TIGHTEN
•
UNLOADER COIL REPLACEMENT
NEW CLIP-ON COIL INSTALLED
•
HARNESS #069206 INSTALLATION
BRAND NEW HARNESS INSTALLATION NOT REQUIRED
or
BRAND NEW HARNESS INSTALLED AND PROPERLY SECURED
CONNECTOR L199 SCREW TIGHTENED
CONNECTOR So9 REMOVED
WB15-19F
Page 4 / 18
PROCEDURE
DANGER
Park vehicle safely, apply parking brake, stop 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.
REINFORCEMENT BRACKET INSTALLATION
1. Loosen bolt (A).
2. Unscrew and remove bolt (B).
3. Remove the drive belt tensioner.
4. Remove the drive belts.
Note: Keep hardware for later use
5. Unscrew and remove bolt (C).
6. Discard block (D).
Note: Keep hardware for later use
Make sure they are in good condition
WB15-19F
Page 5 / 18
7. AT THIS POINT, IDENTIFY THE TYPE OF CLUTCH INSTALLED ON YOUR VEHICLE.
8. As an alternate way to confirm LANG Type
clutch, locate “LANG” engraving on the hub
center.
Note for this type:
In addition to kit #457769, confirm you have
two #5001616 socket head cap screws in your
available material.
These additional screws will be used to install
the reinforcement bracket on the compressor.
9. If a LINNIG Type clutch is installed, refer to “LINNIG ELECTROMAGNETIC CLUTCH
INSTALLATION / REMOVAL” at the end of this document.
WB15-19F
Page 6 / 18
LANG clutches only
10. Remove the LANG electromagnetic clutch
assembly.
LANG clutches only
10.1. Hold the rotor with the appropriate wrench.
Loosen and remove the M12 rotor mounting
screw.
REMOVING THE M12
SCREW
LANG clutches only
10.2. Use tool #7770159 and screw it in
the straining washer.
If the tool is not available, use an
M16x50 mm hex head bolt. (Prevost
5001372)
Tap with a soft hammer. The rotor will
detach from the compressor shaft.
PULL OFF THE ROTOR WITH
TOOL or M16 BOLT
TAKE OFF THE ROTOR
10.3. Remove the rotor.
10.4. Loosen the fastening screws (4x) of the coil and pull the coil off the
retainer.
WB15-19F
Page 7 / 18
LANG clutches only
10.5. Check the date code on the clutch pulley. If it is before S05 (May 2015), install a new coil
#950533 in replacement of this one.
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