WARRANTY
BULLETIN
DATE :
EXPIRATION:
SUBJECT :

OCTOBER 2015
OCTOBER 2017

WB15-19G
SECTION :

22 - HVAC

BITZER A/C COMPRESSOR VIBRATION –
ADDITION OF A REINFORCEMENT BRACKET
TO THE MOUNTING

Rev G:
THIS WARRANTY BULLETIN SUPERSEDES PREVIOUS VERSIONS
Sept. 19, 2016: Removed reference to 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

H3-41, H3-45 coaches

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.

WB15-19G
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)

WB15-19G
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

WB15-19G
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

WB15-19G
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:
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.

WB15-19G
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.

WB15-19G
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.