NHTSA ID Number: 10237011
Manufacturer Communication Number: TSB 600
TSB/Document Date: 2023-05-31
Summary
Newmar
has decided to add straps to coaches equipped with a front overhead bunk to prevent the possibility of the bunk lowering if the latches were not securely or properly latched and/or unintentional latch release.
Newmar Corporation
PO Box 30
Nappanee, IN 46550
TSB 600
May 16, 2023
TECHNICAL SERVICE BULLETIN
AFFECTED MODELS
2017 – 2022 :: Bay Star Sport, Bay Star, Canyon Star (with front overhead bunk option _K925
or _K926)
DESCRIPTION
Newmar has decided to add straps to coaches equipped with a front overhead bunk to
prevent the possibility of the bunk lowering if the latches were not securely or properly
latched and/or unintentional latch release.
UNITS AFFECTED
Please refer to the attached population list for affected units and VINs.
CORRECTIVE ACTION
1. Instruct coach owner(s) to press and hold the release switch for at least two seconds when
releasing the bunk to ensure complete cycle of the latch operation.
2. Use the attached instructions to install a strap on each side of the bunk. This strap will prevent
unintentional lowering of the bunk for any reason.
PARTS NEEDED
Item Description
Strap Web w/ Quick Release
Quantity
Newmar Part #
2 ea.
036505
Screw 10x3/4” Pan Tek
.004 ea.
136045
Machine Screw 10x32x3/4”
.004 ea.
156525
Nut 10x32 w/ Star washer
.004 ea.
19099
FLAT RATE CODE:
TSB 600
LABOR TIME:
.3 hr. for installation of both straps
IMPORTANT: Please read this bulletin in its entirety prior to beginning any diagnosis or repairs.
NOTICE: Any technical information published in this bulletin is intended for use only by a qualified, Newmar-authorized service technician. Newmar is not responsible for the misuse of this information.
Instruc�ons for Installing Straps on a Cass Hudson Drop Down Bunk
1. Star�ng on the passenger side with the bunk open, place the strap bracket on the inside of
the upper frame to use as a template. Using a marker or pencil, mark the bracket holes on
each side of the exis�ng bolt.
2. Drill holes in the upper frame using a 13/64 drill bit, drilling toward the valance.
Inside of Upper Frame with Bunk Open
3. Secure the strap to the upper bunk using
#10x32x¾” screws and nuts. Add a drop of
Loc�te on the bolt threads, install the screws,
and �ghten both nuts.
4. Close the bunk. Use #10x¾” pan head tek
screws to atach the other end of the strap to
the lower sec�on of the bunk (as pictured).
5. Repeat the procedure for the opposite (driver)
side of the bunk.
Bottom of Bunk and Frame with Bunk Closed
Prod# VIN Number
USA UNITS
112139
112165
112208
112221
112226
112228
112229
112231
112239
112242
112246
112247
112248
112256
112257
112258
112261
112263
112277
112281
112288
112292
112294
112298
112303
112304
112305
112306
112312
112313
112322
112325
112335
112338
112344
112349
112366
112369
112375
112384
112392
112394
112395
112405
1F66F5DY4G0A06922
1F66F5DY2G0A06918
1F66F5DY1G0A14850
1F66F5DY5G0A11935
1F66F5DY1H0A00139
1F66F5DY0G0A14855
1F66F5DY8H0A02826
1F66F5DY8G0A14859
1F66F5DY0G0A15679
1F66F5DY0G0A12443
1F66F5DY5G0A14852
1F66F5DY0H0A01721
1F66F5DY5G0A14849
1F66F5DY6G0A12446
1F66F5DY1H0A02828
1F66F5DY8H0A00137
1F66F5DY3G0A14848
1F66F5DYXG0A13891
1F66F5DY5H0A03061
1F66F5DY2H0A02742
1F66F5DY5G0A13880
1F66F5DYXG0A14278
1F66F5DY9G0A15664
1F66F5DY9G0A14286
1F66F5DY4G0A14289
1F66F5DY6G0A13161
1F66F5DY4G0A14860
1F66F5DY1G0A15660
1F66F5DY1H0A01386
1F66F5DY6G0A14861
1F66F5DY0H0A03646
1F66F5DY6H0A02744
1F66F5DY4H0A03648
1F66F5DY4H0A03505
1F66F5DY4H0A06212
1F66F5DYXH0A11060
1F66F5DY8H0A06701
1F66F5DY9H0A05606
1F66F5DY1G0A15674
1F66F5DY8H0A03104
1F66F5DY8H0A04768
1F66F5DYXH0A05159
1F66F5DY0H0A05428
1F66F5DY2H0A03891
Year Brand Type Floor Chassis Date IN
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
BS
BT
BS
BT
BS
BS
BS
BS
BS
BT
BS
BS
BS
BT
BS
BS
BS
BS
BS
BT
BT
BT
BS
BS
BS
BT
BT
BT
BT
BT
BS
BT
BS
BT
BT
BT
BT
BT
BS
BS
BS
BT
BT
BT
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
CA
3333
2812
3113
2812
3333
3113
3113
3333
3113
3013
3333
3113
3113
2812
3333
3113
3113
3113
3333
3013
2812
2812
3113
3333
3113
2812
2812
2812
3013
3013
3113
3013
3113
2812
3013
2812
2812
3013
3113
3113
3113
2812
2812
2812
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
Date OFF
1/7/2016 1/14/2016
2/8/2016 2/16/2016
6/14/2016 6/22/2016
5/24/2016
6/3/2016
8/10/2016 8/18/2016
6/20/2016 6/28/2016
8/16/2016 8/24/2016
6/21/2016 6/29/2016
7/25/2016
8/2/2016
5/27/2016
6/8/2016
6/15/2016 6/23/2016
7/26/2016
8/3/2016
6/15/2016 6/23/2016
6/8/2016 6/17/2016
8/12/2016 8/22/2016
8/24/2016 8/31/2016
6/10/2016 6/21/2016
5/24/2016
6/3/2016
8/31/2016
9/8/2016
8/15/2016 8/23/2016
7/13/2016 7/21/2016
7/20/2016 7/27/2016
6/30/2016 7/18/2016
6/9/2016 6/20/2016
6/16/2016 6/27/2016
6/16/2016 6/24/2016
7/27/2016
8/3/2016
8/10/2016 8/18/2016
8/9/2016 8/17/2016
7/22/2016
8/1/2016
9/12/2016 9/20/2016
8/17/2016 8/25/2016
9/13/2016 9/21/2016
9/2/2016 9/12/2016
10/7/2016 10/17/2016
1/30/2017
2/6/2017
10/21/2016 10/31/2016
9/28/2016 10/5/2016
7/21/2016 7/29/2016
9/7/2016 9/15/2016
9/22/2016 9/30/2016
9/29/2016 10/6/2016
9/29/2016 10/7/2016
9/9/2016 9/19/2016
Prod# VIN Number
112422
112430
112432
112440
112442
112445
112446
112459
112460
112482
112483
112487
112494
112499
112517
112521
112525
112526
112529
112531
112537
112550
112551
112562
112565
112566
112567
112572
112576
112577
112578
112583
112584
112585
112586
112599
112604
112609
112610
112620
112623
112626
112637
112643
112646
1F66F5DY5H0A08034
1F66F5DY6H0A07068
1F66F5DY7H0A08844
1F66F5DY2H0A06211
1F66F5DYXH0A08854
1F66F5DY7H0A09508
1F66F5DY7H0A06043
1F66F5DY1H0A07690
1F66F5DY9H0A09204
1F66F5DY7H0A09797
1F66F5DY4H0A10552
1F66F5DY6H0A09189
1F66F5DY5H0A08843
1F66F5DY3H0A09795
1F66F5DY4H0A09207
1F66F5DY1H0A11061
1F66F5DY4H0A11054
1F66F5DY6H0A11055
1F66F5DY5H0A09782
1F66F5DY8H0A11056
1F66F5DY4H0A08851
1F66F5DY4H0A09188
1F66F5DY6H0A08849
1F66F5DY5H0A09524
1F66F5DY9H0A12331
1F66F5DY6H0A11931
1F66F5DY4H0A11930
1F66F5DY9H0A11941
1F66F5DY6H0A11783
1F66F5DY5H0A11922
1F66F5DY7H0A11923
1F66F5DY0H0A11035
1F66F5DY4H0A11782
1F66F5DY2H0A11781
1F66F5DY0H0A11780
1F66F5DY0H0A08846
1F66F5DYXH0A10409
1F66F5DY6H0A11038
1F66F5DY6H0A11928
1F66F5DY4H0A09787
1F66F5DY5H0A08213
1F66F5DY7H0A11937
1F66F5DY8H0A12322
1F66F5DY9H0A12636
1F66F5DY6H0A15087
Year Brand Type Floor Chassis Date IN
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
2017
- Fits: 37945
- Front face: 7" round / Back: 5" / Extension: 2"
- Louver ceiling vent for ducted A/C system with 5" opening.
- Newmar
Class A Entry Door Lock Assembly - Designed... - Size - Handle assembly measures 7 3/4 inches tall and...
- Deadbolt Extension Range - Deadbolt measures 1 7/8 inches in...
- Complete Handle Kit Included - The kit includes the interior...
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TSB/Document ID: TSB 600
Replacement Service Bulletin Number:
MFR Communication Date: 2023-05-16
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: LATCHES/LOCKS/LINKAGES
MFR Component System:
MFR Component Subsystem:
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