Tatuus T-421 - Differential

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RELEASE 2.1.0

174

13.12.3 Differential

Item

Part number

Description

Glue

Torque

(daN*m)

F0085941

Crown screw

648

9,0

Main Page

Table of Contents2
General Information9
Releases9
Release List9
Technical Contacts10
Chassis10
Engine10
Gearbox11
Electronic11
Tires11
Brakes12
Dampers12
Seat Belts - Fire Extinguisher12
General Agreement and Warranty13
Overview14
Mileage Chart16
Safety18
Homologation18
Survival Cell18
Extractable Seat & Gap Fillers19
Driver Padding23
Seat Belts24
Driver Installation25
Front Impact Structure27
Retention System Adjustment27
Quick Release Adjustment27
Front Nose Repair Specification and Procedure29
Applicable Requirements29
Replacement Procedure29
Front Anti Intrusion Panel30
Rear Impact Structure30
Halo31
Installation Procedure31
Disassembly Procedure38
HALO Painting and Certification40
Steering Column41
Wheel Tethers41
Rear Crashbox Tethers41
Fire Extinguisher42
Fire Extinguisher Setup43
Fire Extinguisher System Test Mode44
Fire Extinguisher Maintenance44
Activating Devices45
Rain Light46
Rain Light Modes46
Clutch Disengagement47
FIA Throttle Fail Safe48
Chassis49
Workshop Tools49
Front Jacking49
Rear Jacking50
Stands Position/Width51
Setup Tools52
Front References52
Rear References53
Wheel Hub54
Straight Steering Wheel Position55
Standard Set-Up55
Road Course Set-Up55
Weight and Ballast56
Ballast Position 156
Ballast Position 257
Engine Ballast58
Dimension for Transportation59
Nosecone Reverse Position59
Power Unit -To-Chassis Mounting Points60
Controls and Display61
Cockpit Controls61
Steering Wheel Controls63
Steering Wheel Display64
Page #1: Driver Page65
Page #2: Setting Page67
Page #3: Logger Page69
Page #4: Electric Power Distribution70
Page #5: Engine Warmup71
Page #6: Gearbox Page72
Driver Installation73
Steering Wheel Longitudinal Adjustment73
Steering Wheel Vertical Adjustment74
Gearshift Paddles75
Pedals77
Brake Pedal78
Throttle Pedal79
Throttle Pedal Learning80
Clutch Pedal82
Heel Rest83
Brake Bias86
Brake Bias Cable86
Aerodynamics87
General Notes87
Aerodynamic Sensitivity87
Aerodynamic Maps Datum Point87
Aerodynamic Sensitivity Definition88
Front Wing Setting88
Rear Wing Setting88
Wing Sensitivity89
Wing Sensitivity with FW Gurney Flaps H15 Installed89
Wing Sensitivity with FW Gurney Flaps H15 NOT Installed90
Ride Height Sensitivity91
Suspensions94
Measurement Standard94
Front Wishbones Brackets Assembly95
Geometry Adjustments96
Ride Height Adjustment96
Camber Adjustment97
Toe Adjustment98
Caster Adjustment99
UMP Adjustment100
Vertical Stiffness101
Front Vertical Stiffness101
Rear Vertical Stiffness101
Dampers102
Adjust Damping102
Spring Preload102
Cleaning103
Inspection103
Recommended Service Intervals103
Compression Damping Curve104
Rebound Damping Curve105
Rolling Stiffness106
Front Roll Stiffness106
Rear Roll Stiffness106
Suspension Geometry107
Front Suspension Geometry107
Rear Suspension Geometry108
Anti-Effects110
Front110
Rear110
Optional Damper Sensors112
Suspension Maintenance113
Upright Maintenance113
Upright Disassembly113
Upright Assembly117
Steering120
Steering Geometry120
Steering Maintenance120
Wheels and Tires122
Wheels122
Wheel Nut122
Tires122
Brake System123
Brake System Setup123
Brake System Bedding-In124
Fuel System125
Fuel Tank Fuel Cell125
Fuel Drain Procedure126
Fuel Coupling127
Fuel Machine Options128
Oil System129
Electric System130
Overview130
Power System130
Power Loom Routing130
Main Switch132
Battery133
Battery Installation133
Jump Battery134
Fire-Up/Switch-OFF Procedures135
Power-Box136
Wiring139
Electrical Schematics140
Radio Plug140
CAN Lines140
CAN Termination141
Sensors142
Video System143
Vref143
Engine144
Transmission145
Sadev Gearbox145
Ratio Chart145
Standard Stages Chart146
Optional Stages Chart147
Lubrication149
Particular Precautions149
Storage and Use149
Washing under Pressure149
Gearbox Temperature149
Gearbox Oil149
Drain the Gearbox149
Sadev Factory Rebuild151
Returning Gearboxes for Servicing151
Service Planning151
Glued Components152
Special Tools152
Information about Disassembly153
Assembly /Disassembly153
Gears Disassembly153
Gears Refitting156
Selector Shaft Disassembly157
Selector Shaft Refitting159
Barrel and Reverse Gear Rocker Removal160
Barrel and Reverse Gear Rocker Refitting160
Differential Removal161
Differential Block Disassembly163
Differential Block Reassembly164
Crown Wheel and Differential Bearings Replacement165
Remove the Secondary Shaft166
Secondary Shaft Advancement, Shim Calculation167
Secondary Shaft Reassembly168
Differential Centering, Shim Calculation170
Differential Centering, Final Drive Backlash171
Exploded Views173
Primary Shaft173
Secondary Shaft174
Differential175
Selector176
Selector Axle177
Housing178
Transmission179
Shift System180
System Overview180
Gearshift Control180
Gear State Values Explanation180
ESA Settings181
ESA Warnings182
ESA Maintenance183
Damped Shaft Assy183
ESA Rocker Bolts184
Electronic & Software185

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