NHTSA ID Number: 10203565
Manufacturer Communication Number: MERITOR TP 15123
TSB/Document Date: 2021-11-15
Summary
Coverting unitized wheel ends to conventional hub bearings and wheel ends on Merito coach front and tag axles
TP-15123
Issued 01-16
Technical Bulletin
Hazard Alert Messages
Converting Unitized Wheel Ends
to Conventional Hub Bearings and
Wheel Ends on Meritor Coach
Front and Tag Axles
FH941KX, FH946KX, MCI4002 and MCI6003
Axles
Issued
1TP-15123
Technical
01-16
Bulletin
Figure 1
UNITIZED WHEEL END (UWE)
Read and observe all Warning and Caution hazard alert messages in
this publication. They provide information that can help prevent
serious personal injury, damage to components, or both.
INSPECTION
PORT
WARNING
To prevent serious eye injury, always wear safe eye protection
when you perform vehicle maintenance or service.
M
Park the vehicle on a level surface. Block the wheels to
prevent the vehicle from moving. Support the vehicle with
safety stands. Do not work under a vehicle supported only by
jacks. Jacks can slip and fall over. Serious personal injury and
damage to components can result.
12 BOLT
ATTACHMENT
PATTERN
How to Obtain Additional Maintenance,
Service and Product Information
‘M’ SYMBOL
IN CENTER 4012340a
Figure 1
Figure 2
Refer to Maintenance Manual 23, Bus and Coach Front and Tag
Axles; Maintenance Manual MM-0409, Wheel-End Components;
Maintenance Manual MM-0467, EX+™ Air Disc Brake; and
technical publication TP-89159, Axle Wheel Bearing Installation
Specifications. To obtain these publications, visit Literature on
Demand at meritor.com.
CONVENTIONAL BEARING WHEEL END
Converting Unitized Wheel Ends to
Conventional Hub Bearings and Wheel
Ends on Meritor
Coach Front and Tag
Axles
This technical bulletin provides instructions for converting unitized
wheel ends to conventional bearing hubs and wheel ends on certain
Meritor coach front and tag axles. Wheel ends can be identified by
the features shown in Figure 1 and Figure 2. Affected models are
shown in Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8,
Figure 9 and Figure 10.
10 BOLT ROTOR
ATTACHMENT
4012339a
Figure 2
How to Obtain Kits
Contact Meritor’s Commercial Vehicle Aftermarket at
888-725-9355.
Kits
Table E: KIT 13020-C — D Coach
The following kits are for converting unitized wheel ends to
conventional bearing hubs on FH941KX, FH946KX, MCI4002 and
MCI6003 axles.
Axle
Specification
Brake
Angle
Stud
Standout
Wheel
FH946KX20
BAR 44°
1.82″
Steel
FH941 Front Axles
FH946KX36
BAR 44°
1.82″
Steel
Table A: KIT 13020 — D Coach
FH946KX42
BAR 44°
1.82″
Steel
Wheel
Axle
Specification
Brake
Angle
Stud
Standout
FH941KX7
BAF 0°
2.09″
Steel/
Aluminum
FH941KX15
BAF 0°
2.09″
Steel/
Aluminum
Wheel
Table F: KIT 13020-B— E/J Coach
Axle
Specification
Brake
Angle
Stud
Standout
FH946KX6
BAF 44°
2.09″
Steel/
Aluminum
FH946KX9
BAF 44°
2.09″
Steel/
Aluminum
FH946KX23
BAF 44°
2.09″
Steel/
Aluminum
Table B: KIT 13020-A — D Coach
Axle
Specification
Brake
Angle
Stud
Standout
FH941KX20
BAF 0°
1.82″
Steel
FH941KX26
BAF 0°
1.82″
Steel
MC14MC16 Frame Tag Axles
Table G: KIT 13018 — D Coach
Table C: KIT 13020-B— E/J Coach
Axle
Specification
Brake
Angle
Stud
Standout
FH941KX1
BAF 44°
2.09″
Axle Specification
Brake
Angle
Stud
Standout
MC14002NSNK1
BAR 60°
2.09″
Steel/
Aluminum
Steel/
Aluminum
MC14002NSNK4
BAR 60°
2.09″
Steel/
Aluminum
FH941KX6
BAF 44°
2.09″
Steel/
Aluminum
FH941KX11
BAF 44°
2.09″
Steel/
Aluminum
FH941KX13
FH941KX16
BAF 44°
BAF 44°
2.09″
2.09″
Steel/
Aluminum
Steel/
Aluminum
FH946 Steerable Tag Axles
Table H: KIT 13018 — E/J Coach
Axle Specification
Brake
Angle
Stud
Standout
MC16002NSNK4
BAR 60°
2.09″
Steel/
Aluminum
MC16002NSNK6
BAR 60°
2.09″
Steel/
Aluminum
MC16002NSNK8
BAR 60°
2.09″
Steel/
Aluminum
Table D: KIT 13020-B — D Coach
Axle
Specification
Brake
Angle
Stud
Standout
FH946KX11
BAR 44°
2.09″
Steel/
Aluminum
FH946KX22
BAR 44°
2.09″
Steel/
Aluminum
TP-15123
Issued 01-16
Page 2
Wheel
Wheel
Copyright Meritor, Inc., 2016
(16579)
Printed in USA
FH941 Front Axle with BAF-0 Oriented Brakes
Figure 3
BRAKE
CALIPER
FRONT
TORQUE
PLATE
4012479a
Figure 3
FH946 Tag Axle with BAR-44 Oriented Brakes
Figure 4
TORQUE
PLATE
BRAKE
CALIPER
FRONT
4012480a
Figure 4
(16579)
Printed in USA
Copyright Meritor, Inc., 2016
TP-15123
Issued 01-16
Page 3
MC14 Tag Axle with BAR-60 Oriented Brakes
Figure 5
BRAKE
CALIPER
TORQUE
PLATE
FRONT
4012481a
Figure 5
TP-15123
Issued 01-16
Page 4
Copyright Meritor, Inc., 2016
(16579)
Printed in USA
FH 941 and FH 946 Axles
Figure 6
STEERING ARM
GREASE
FITTING
FH 941 AND FH 946
STEERING ARM
AND KNUCKLE
DRAW
KEY
NUT
KING PIN CAP
DRAW
KEY
BUSHING
AXLE CENTER
SHIMS
SEAL
THREADED
KNUCKLE
CAP
DRAW KEY
STEERING KNUCKLE
DRAW KEY NUT
STOP
SCREW
KING PIN
STOP
SCREW
LOCKNUT
SEAL, IF REQUIRED
THRUST
BEARING
SEAL
BUSHING
KING PIN CAP
TIE ROD
ARM NUT
TIE ROD
ASSEMBLY
COTTER PIN
TIE ROD ARM
COTTER PIN
TIE ROD END NUT
BOLT
TIE ROD
ARM KEY
CLAMP
TIE ROD END
TIE ROD CLAMP
LOCKNUT
4012361a
Figure 6
(16579)
Printed in USA
Copyright Meritor, Inc., 2016
TP-15123
Issued 01-16
Page 5
Conventional Hub — FH Series Front and Steerable Tag Axles with EX+ Brakes
Figure 7
14
11
15
13
10
17
16
8
3
4
5 6
7
9
2
12
1
4006161a
Figure 7
Item
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TSB/Document ID: MERITOR TP 15123
Replacement Service Bulletin Number:
MFR Communication Date: 2016-01-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: WHEELS
MFR Component System:
MFR Component Subsystem:
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