TREMEC
M.R.
NOTES, CAUTIONS
WARNINGS& INDEX
, NOTES, CAUTIONS & WARNINGS
Appropriate service methods As you read through the procedures, you will come across NOTES,
and proper repair procedure are CAUTIONS, and WARNINGS. Each one is there for a specific purpose.
essential for the safe, reliable NOTES give you added information that will help you to complete a
operation of all motor particular procedure. CAUTIONS are given to prevent you from making
vehicles as well as the personal
an error that could damage the vehicle. WARNINGS remind you to be
safety of the individual doing
the work.
especially careful in those areas where carelessness can cause
personal injury. The following list contains some general WARNING
This Manual provides general that you should follow when you work on a vehicle.
directions for
accomplishing service and Always wear safety glasses for eye protection.
repair work with tested,
effective techniques. Use safety stands whenever a procedure requires you to be under the
vehicle with the vehicle jacked up.
Following them will help assure
reliability. Be sure that the ignition switch is always in the OFF position, unless
otherwise required by the procedure.
There are numerous variations
in procedures, techniques,
Set the parking brake when working on the vehicle. It should be in
tools and parts for servicing
vehicles, as well as in the skill
REVERSE (engine OFF) or NEUTRAL (engine ON) unless instructed
of the individual doing the work. otherwise for a specific operation. Place wood blocks (4”X4” or larger)
to the front and rear surfaces of the tires to provide further restraint
This Manual cannot possibly from inadvertent vehicle movement.
anticipate all such variations
and provide advice or Operate the engine only in a well-ventilated area to avoid the danger
cautions as to each. of carbon monoxide.
Accordingly, anyone who Keep yourself and your clothing away from the moving parts, when
departs from the instructions the engine is running, especially the fan
provided in this Manual must and drive belts.
first establish that he
compromises neither his
To prevent serious burns, avoid contact with hot metal parts such as
personal safety nor the vehicle
integrity by his choice of
the radiator, exhaust manifold tail pipe, catalytic converter and muffler.
methods, tools or Do not smoke while working on the vehicle.
parts.
To avoid injury, always remove rings, watches, loose hanging jewelry,
and loose clothing before beginning to work on a vehicle. Tie long hair
securely behind the head.
Keep hands and other objects clear of the radiator fan blades, Electric
cooling fans can start to operate at any time by an increase in under
TREMEC hood temperatures, even though the ignition is in the OFF position.
M.R.
Therefore, care should be taken to ensure that the electric cooling fan
is completely disconnected when working under the hood.
Disconnect the negative battery ground cable before using any electric
welding equipment.
,CONTENTS Introduction 4
Explosive view 5
Transmission Parts 6
Specifications 7
Lubrication 8
General Information 9
Torque Recomendations 10
Axial Clearances 12
Preventive Maintenance 12
Precautions 13
Inspection List 14
Turret Control Disassembly 15
Control Parts Group Disassembly 22
Primary Gear Parts Group Disassembly 24
Secondary Group Disassembly 30
Input Shaft Disassembly 31
Case Parts Group Input Shaft Disassembly 33
Extension Disassembly 36
Reassembly Reverse Gear 38
Troubleshooting Guide 57
Tools 60
3
, TR-3650
INTRODUCTION
This manual is designed to provide detailed information
necessary to service and repair the TREMEC 3650
transmission listed on the cover. As outlined in the Table of
Contents, the manual is divided into 4 main sections:
a) Technical Information and reference
b) Disassembly and reassembly of the transmission
c) Troubleshooting guide
d) Tools required
The format of the manual is designed to be followed in its
entirety if complete disassembly and reassembly of the
transmission is necessary. But if only one component of the
transmission needs to be repaired, see the Table of Con-
tents for the page numbers showing that component. For
example, if you need to work on the Shifting Controls, you
will find instructions for removal, disassembly, and reassem-
bly on page into. Service manuals, Illustrated part list,
drivers instructions, and other forms service information for
theses and other TREMEC transmission are available upon
request.
On any repair or parts replacement, always use “original”
TREMEC parts according to the corresponding “Service
part Catalog”.
The use “non original” parts may endanger the operation
and performance of the transmission.
TRANSMISIONES Y EQUIPOS MECANICOS, S.A. DE C.V.
DOES NOT GUARANTEE service parts or failures resulted
for a misuse or not being provided by an authorized
TREMEC distributor.
A product literature order from, service bulletins (detailing
information on product improvements), repair procedures,
and other service related subjects can be obtained by
writing to the following address:
NOMENCLATURE: PLANT AND GENERAL OFFICES:
Letter designations Number designations
TRANSMISIONES Y EQUIPOS MECANICOS, S.A. DE C.V.
Av. 5 de Febrero No. 2115
C.P. 76120, Querétaro, Qro.
TR-3650 MEXICO
TREMEC Design Level
Design
Forward speeds
x10 Capacity nominal lbs-ft
4
M.R.
NOTES, CAUTIONS
WARNINGS& INDEX
, NOTES, CAUTIONS & WARNINGS
Appropriate service methods As you read through the procedures, you will come across NOTES,
and proper repair procedure are CAUTIONS, and WARNINGS. Each one is there for a specific purpose.
essential for the safe, reliable NOTES give you added information that will help you to complete a
operation of all motor particular procedure. CAUTIONS are given to prevent you from making
vehicles as well as the personal
an error that could damage the vehicle. WARNINGS remind you to be
safety of the individual doing
the work.
especially careful in those areas where carelessness can cause
personal injury. The following list contains some general WARNING
This Manual provides general that you should follow when you work on a vehicle.
directions for
accomplishing service and Always wear safety glasses for eye protection.
repair work with tested,
effective techniques. Use safety stands whenever a procedure requires you to be under the
vehicle with the vehicle jacked up.
Following them will help assure
reliability. Be sure that the ignition switch is always in the OFF position, unless
otherwise required by the procedure.
There are numerous variations
in procedures, techniques,
Set the parking brake when working on the vehicle. It should be in
tools and parts for servicing
vehicles, as well as in the skill
REVERSE (engine OFF) or NEUTRAL (engine ON) unless instructed
of the individual doing the work. otherwise for a specific operation. Place wood blocks (4”X4” or larger)
to the front and rear surfaces of the tires to provide further restraint
This Manual cannot possibly from inadvertent vehicle movement.
anticipate all such variations
and provide advice or Operate the engine only in a well-ventilated area to avoid the danger
cautions as to each. of carbon monoxide.
Accordingly, anyone who Keep yourself and your clothing away from the moving parts, when
departs from the instructions the engine is running, especially the fan
provided in this Manual must and drive belts.
first establish that he
compromises neither his
To prevent serious burns, avoid contact with hot metal parts such as
personal safety nor the vehicle
integrity by his choice of
the radiator, exhaust manifold tail pipe, catalytic converter and muffler.
methods, tools or Do not smoke while working on the vehicle.
parts.
To avoid injury, always remove rings, watches, loose hanging jewelry,
and loose clothing before beginning to work on a vehicle. Tie long hair
securely behind the head.
Keep hands and other objects clear of the radiator fan blades, Electric
cooling fans can start to operate at any time by an increase in under
TREMEC hood temperatures, even though the ignition is in the OFF position.
M.R.
Therefore, care should be taken to ensure that the electric cooling fan
is completely disconnected when working under the hood.
Disconnect the negative battery ground cable before using any electric
welding equipment.
,CONTENTS Introduction 4
Explosive view 5
Transmission Parts 6
Specifications 7
Lubrication 8
General Information 9
Torque Recomendations 10
Axial Clearances 12
Preventive Maintenance 12
Precautions 13
Inspection List 14
Turret Control Disassembly 15
Control Parts Group Disassembly 22
Primary Gear Parts Group Disassembly 24
Secondary Group Disassembly 30
Input Shaft Disassembly 31
Case Parts Group Input Shaft Disassembly 33
Extension Disassembly 36
Reassembly Reverse Gear 38
Troubleshooting Guide 57
Tools 60
3
, TR-3650
INTRODUCTION
This manual is designed to provide detailed information
necessary to service and repair the TREMEC 3650
transmission listed on the cover. As outlined in the Table of
Contents, the manual is divided into 4 main sections:
a) Technical Information and reference
b) Disassembly and reassembly of the transmission
c) Troubleshooting guide
d) Tools required
The format of the manual is designed to be followed in its
entirety if complete disassembly and reassembly of the
transmission is necessary. But if only one component of the
transmission needs to be repaired, see the Table of Con-
tents for the page numbers showing that component. For
example, if you need to work on the Shifting Controls, you
will find instructions for removal, disassembly, and reassem-
bly on page into. Service manuals, Illustrated part list,
drivers instructions, and other forms service information for
theses and other TREMEC transmission are available upon
request.
On any repair or parts replacement, always use “original”
TREMEC parts according to the corresponding “Service
part Catalog”.
The use “non original” parts may endanger the operation
and performance of the transmission.
TRANSMISIONES Y EQUIPOS MECANICOS, S.A. DE C.V.
DOES NOT GUARANTEE service parts or failures resulted
for a misuse or not being provided by an authorized
TREMEC distributor.
A product literature order from, service bulletins (detailing
information on product improvements), repair procedures,
and other service related subjects can be obtained by
writing to the following address:
NOMENCLATURE: PLANT AND GENERAL OFFICES:
Letter designations Number designations
TRANSMISIONES Y EQUIPOS MECANICOS, S.A. DE C.V.
Av. 5 de Febrero No. 2115
C.P. 76120, Querétaro, Qro.
TR-3650 MEXICO
TREMEC Design Level
Design
Forward speeds
x10 Capacity nominal lbs-ft
4
