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Tatuus GB3 CHAMPIONSHIP Technical Manual

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TECHNICAL MANUAL (Part A)
TATUUS-MSV 023
Release 1.03 (27/02/2023)

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Summary of Contents for Tatuus GB3 CHAMPIONSHIP

  • Page 1 TECHNICAL MANUAL (Part A) TATUUS-MSV 023 Release 1.03 (27/02/2023)

  • Page 2: Table Of Contents

    CONTENTS Contents............................3 General Information ........................6 Releases ..........................6 1.1.1 Release list: ......................... 6 Technical Contacts ......................7 1.2.1 Chassis ........................7 1.2.2 Engine ........................7 Gearbox ........................7 1.2.3 1.2.4 Electronic ........................8 1.2.5 Tyres .......................... 9 Brakes ........................9 1.2.6 Dampers ........................
  • Page 3 2.12.6 Maintenance ......................33 2.12.7 Special situation ......................34 2.12.8 Warranty ........................34 Chassis ........................... 36 Jacking ..........................36 3.1.1 Front Jacking ......................36 3.1.2 Rear Jacking......................36 Setup Tools ........................37 Standard Set-up ........................ 38 Weight and ballast ......................39 Front ballast .......................
  • Page 4 4.2.3 Pirelli rear tyre ......................66 Aerodynamic ..........................68 General notes ........................68 Front wing setting ......................69 Rear wing setting ......................71 Aerodynamic Reference setup .................... 72 Ride Height sensitivity ......................73 Wings sensitivity ........................ 74 Brake system ........................... 75 Master Cylinders .......................

  • Page 5: General Information

    GENERAL INFORMATION 1.1 R ELEASES Modifications from previous release are in 1.1.1 Release list: Release Version Author Notes Date 1.00 11/02/2022 Tatuus Startup version 1.01 17/02/2022 Tatuus 1.02 12/05/2022 Tatuus Added curves Updated paragraphs: 1.2.7, 2.2.3, 2.8, 2.10, 1.03 27/02/2023 Tatuus 3.3, 3.6, 3.8, 6.4, 9.1...

  • Page 6: Technical Contacts

    1.2 T ECHNICAL ONTACTS 1.2.1 Chassis Tatuus Racing Srl Via Juan Manuel Fangio, snc, 20045 Lainate (MI) - Italy Tel: +39 039 6040828 Fax: +39 039 6041764 e-mail: info@tatuus.it Web: www.tatuus.it 1.2.2 Engine Bedford Autodrome Thurleigh Airfield Business Park Thurleigh...

  • Page 7: Electronic

    1.2.4 Electronic Brookfield Technology Centre Twentypence Road, Cottenham Cambridge CB24 8PS Tel: +44 (0)1954 253600 Fax: +44 (0)1954 253601 Magneti Marelli Holding Spa Motorsport via A. Borletti, 61/63 20011 Corbetta (MI) -Italy Tel: +39 02 97227000 Fax: +39 02 97227570 Next Solution Snc Via Belfiore, 31/D 23900 Lecco - Italy...

  • Page 8: Tyres

    1.2.5 Tyres For General and Technical enquiries: Natham Coleman Tel: +44 (0)7752 825277 e-mail: natham.coleman.ex@pirelli.com Pirelli Motorsport, Omega One Collett, Didcot Oxfordshire OX11 7AW For Sales enquiries: Protyre Motorsport Tel: +44 (0)1782 411001 e-mail: shaun.chetwin@protyre.co.uk jason.buckley@protyre.co.uk 1.2.6 Brakes AP Racing Wheler Road, Seven Stars Industrial Estate Coventry, West Midlands, CV34LB Tel: +44 (0) 24 7663 9595...

  • Page 9: Dampers

    1.2.7 Dampers ORAM V.le Rasori, 2 20145 Milano – Italy Contact: Andrea Pezzotta Tel: +39 024989884 Fax: +39 0248003052 e-mail: info@oramitalia.com UK service agent: Ian Gardiner I.G.Racing Limited 14 Harrowden Lane Finedon Northants NN9 5NW Workshop: 07967 300 537 Office: 01933 815 133 Website: http://www.igracing.co.uk/ 1.2.8 Seat belts –...

  • Page 10: Overview

    1.3 O VERVIEW Front track 1514 mm Rear track 1485 mm Wheelbase 2760 mm Overall length 4539 mm Overall width Max 1750 mm Overall Height 950 mm (from reference plane) Weight ND (refer to championship regulations) Composite Carbon fibre sandwich with Al/Nomex honeycomb, Chassis FIA F4 (Ann.J Art.274) homologated Bodywork...

  • Page 11: Overall Dimensions

    1.4 O VERALL DIMENSIONS Version 1.03...

  • Page 12: Safety

    The survival cell is the main safety and structural component of the car and it has been approved by the FIA, great attention must be paid in checking for structural failure not later than two years after delivery from Tatuus factory, and after each major accident.
  • Page 13 3. Cut off the nose tip forward the traced line 4. Using sandpaper on the outer surface, reduce the thickness of the crashbox by about 1mm for a length of 15-25 mm (red area). Attention must be paid to sandpaper the outer surface, at the depth of 1 mm you should find the resin between first and second ply.

  • Page 14: Rear Impact Structure

    Rear impact structure is a safety and structural component of the car (approved by FIA crash test), great attention must be paid in checking for structural failure not later than two years after delivery from Tatuus factory, and after each accident. Rear impact structure must be checked and repaired by a centre authorised by Tatuus.

  • Page 15: Halo

    HALO 2.2.1 Installation procedure General notes: grey arrow: unscrew/screw but not tighten green arrow: screw and tighten When installing the HALO, apply on the bolts some water and oxidation resistant grease. For example, the PETRONAS TUTELA Z2 grease is suitable for this purpose. 1.
  • Page 16 3. Fasten the HALO front fixing screw (24-01-017) and pin (24-01-016). Do not apply any tightening torque. 24-01-016 24-01-017 4. Please note that the HALO front fixing screw (24-01-017) shall be on the left side and the HALO front fixing pin (24-01-016) shall be on the right side. 5.
  • Page 17 7. Fasten the two shoulder bolts (24-01-033). Do not apply any tightening torque. Screw the bolts until the screw’s underhead gets in contact with the plane of the counterbore on the HALO foot. At this point do not apply any tightening torque but loose the bolt one turn (counterclockwise). 8.
  • Page 18 9. Fasten the two M12X30 bolts. Do not apply any tightening torque. Screw the bolts until the screw’s underhead gets in contact with the plane of the counterbore on the HALO foot. At this point do not apply any tightening torque but loose the bolt one turn (counterclockwise). 10.
  • Page 19 11. Tighten the two shoulder bolts 24-01-033. Do not tighten to target value one bolt first and then the other. Apply the tightening torque gradually, keeping the balance on the two bolts. Target value is 51Nm. 12. Tighten the two M12X55 bolts. Do not tighten to target value one bolt first and then the other. Apply the tightening torque gradually, keeping the balance on the two bolts.
  • Page 20 14. Tighten the six NAS1307-16 bolts. Do not tighten to target value one bolt first and then the other. Apply the tightening torque gradually, keeping the balance on the four bolts. Target value is 51Nm. 15. Double check the tightening torque on each bolt starting from the two shoulder bolts (24-01-033), then on the M12 bolts and finally on the NAS1307-16 bolts.
  • Page 21 Version 1.03...

  • Page 22: Disassembly Procedure

    2.2.2 Disassembly procedure 1. Lift the front fairing 2. Unscrew and remove the six NAS1307-16 bolts. Do not unscrew one bolt first and then the others. Loose the bolts gradually, keeping the balance on all of them. Version 1.03...
  • Page 23 3. Unscrew and remove the M12X30 bolts. Do not unscrew one bolt first and then the other. Loose the bolts gradually, keeping the balance on the two bolts. 4. Unscrew and remove the M12X55 bolts. Do not unscrew one bolt first and then the other. Loose the bolts gradually, keeping the balance on the two bolts.

  • Page 24: Halo Painting And Certification

    If the HALO sticker is damaged or detached, it’s required to send a photo of the sticker directly to Tatuus to evaluate the issue. If the hologram needs to be re-placed or re-fitted, the HALO should come back to Tatuus for inspection and re-certification.

  • Page 25: Steering Column

    TEERING COLUMN The steering column has an integrated collapsible section [1] to absorb impact energy. Extreme attention must be paid on this part to avoid any damage or overload. IMPORTANT: in case of impact the aluminium crashbox must be replaced and column carefully inspected. RONTAL NTRUSION ANEL...

  • Page 26: Fuel Cell

    UEL CELL Premier FT3-1999 Rubber bladders should be used for no more than 5 years after the date of manufacture, unless inspected and recertified by the manufacturer for a period of up to another 2 years. UEL COUPLING Staubli SPT08.3655/L/JV SPT08.7655/L/JV Version 1.03...

  • Page 27: Seat Belts

    EAT BELTS OMP HANS Superleggera 6 points Homologation FIA D-255.T798 Shoulder belts fixing points (4 positions available) Lap belts fixing points Crotch belts fixing points Version 1.03...

  • Page 28: Extractable Seat

    XTRACTABLE SEAT The seat must be removable without the need to cut any of the seat belts or remove the harness buckle. The shoulder and lap belts must fall away over the seat edges as it is withdrawn and the crotch straps must pass freely through the seat bottom hole or holes, which must be located in front of the driver's crotch.

  • Page 29: Driver Installation

    RIVER INSTALLATION Please find below the relevant articles from the 2020 FIA F4 1st gen technical regulation: 15.2.1 (car homologated as from 01/01/2019) The driver's helmet and steering wheel must be arranged such that they lie below a line drawn between the front fixing axis of the secondary roll structure and a point 75mm vertically below the highest point of the principal roll structure.

  • Page 30: Fire Extinguisher

    2.12 F IRE EXTINGUISHER USE AND MAINTENANCE OF OMP CEFAL3 EXTINGUISHING SYSTEM This manual will provide the information you need to correctly install and use your extinguishing system. If you have any questions, contact OMP Racing s.r.l. Customer Service at +39 010 9650 I , or consult your local dealer.

  • Page 31: Homologation And Intended Use

    2.12.3 Homologation and intended use WARNING An extinguishing system that is unsuitable for your vehicle, or that is not properly installed, will provide reduced protection and will increase the risk of injury or even death. The extinguishing systems in the CESAL 3 series are suitable for installation on saloon, sport, and single- seater competition cars with rear or forward gasoline engines, and are type-tested for this application according to the "FIA Standard for Plumbed-in Fire Extinguisher Systems in Competition Cars".

  • Page 32: Technical Specifications

    It is advisable to connect the bottle explosive capsule and tightly screw the retention ring before installing the bottle in the vehicle in case the room around the bottle does not allow easy access to the connector when installed. WARNING If the bottle is connected with the Control Unit switch in the ON position, the system might go on.

  • Page 33: Special Situation

    switch is in the ON position before using the vehicle. Every 2 years: Have OMP or an OMP licensee perform the compulsory overhaul on the bottle. The date for the first overhaul is shown on the extinguisher label. Clean the system as follows: Disassemble the nozzles from their connectors and the connectors from the hose.
  • Page 34 Extinguishing systems with a damaged tamper-proof seal will not be serviced under the warranty, as they will be considered to have been tampered with. The warranty will be voided in the event that the extinguishing system is used incorrectly or in the event of inappropriate maintenance.

  • Page 35: Chassis

    CHASSIS ACKING The vehicle can be jacked with suitable jacking equipment by the specific points: 3.1.1 Front Jacking The highlighted area is suitable to carry the weight of the car, the jack plate should fit as better as possible the underwing surface.

  • Page 36: Setup Tools

    ETUP OOLS Here below some views of the main reference points Version 1.03...

  • Page 37: Standard Set-Up

    TANDARD Here below the standard set-up sheet, refer to specific chapter for details: TARGET FRONT REAR SPRING RATE 1100 PRE-LOAD 3 HOLES 3 HOLES BUMP RUBBER NONE NONE COMPRESSION 7 / 7 7 / 7 REBOUND 7 / 7 7 / 7 JUST CLEAR AT FULL DROOP (MAX.

  • Page 38: Weight And Ballast

    EIGHT AND BALLAST In order to achieve the minimum racing weight of the car it is possible to add ballast manufactured from steel, provided it is fitted in the allowed places (see pictures below) and it is fixed in such a way that tools are required for its removal.

  • Page 39: Front Ballast

    3.4.1 Front ballast Maximum 5.5 kg, fixings 2x M8 bolts. WARNING: check for any possible interference between ballast and pedals or master cylinder push rods in any functional position, and any pipes and cables or connectors. It is permitted to locally modify the ballast to achieve a necessary 10mm minimum clearance to pedal parts and 5mm minimum to pipes, cables and connectors.

  • Page 40: Pedal Box Ballast

    3.4.2 Pedal box ballast Maximum 4.5 kg, fixings 4x M6 bolts. Emplacement available only for short drivers, two sets of pedal holes must be free. WARNING: check for any possible interference between ballast and pedals or master cylinder push rods in any functional position, and any pipes and cables or connectors.

  • Page 41: Driver Seat Ballast

    3.4.3 Driver seat ballast Maximum 10.0 kg, fixings 2x M6 bolts. The electronic carrier plate must remain in its original position (sitting on the floor), the ballast must sits on top of this plate. It is permitted to locally modify the ballast to achieve clearance to adjacent cables and connectors.

  • Page 42: Cockpit

    OCKPIT 3.5.1 Controls and procedures On the cockpit panels you can find: • [1] Main power switch: master switch is ON; • [2] Ignition switch: ignition coils, injectors and alternator are powered; • [3] Starter button (GREEN): starter motor is cranking (note that this button will crank the starter in any condition but the engine will fire up only if Ignition is ON);...

  • Page 43: Pedals

    3.5.2 Pedals The pedal box can be adjusted in position, five positions are available in the chassis, when pedal box is moved backward the pedal rod have to be adjusted to reach master cylinder, here below the available options: Long rod (ref. 16-15-16-005): it has to be added to the AP rod, the total length of the rod must be shorter than 330mm.
  • Page 44 An aluminium heel rest plate can be added, here below a guideline sketch: Version 1.03...
  • Page 45 For very short driver teams are allowed to manufacture an aluminium pedal plate in order to shift the pedal box backwards. This part can be ordered from MSV under the following part number GB401C1011 in aluminium (1.98kg) or steel (5.71kg). See the drawing below: Version 1.03...
  • Page 46 3.5.1.1 Brake Pedal to Steering Column clearance With the Brake Pedal set to the forward most position it is possible, if the Pedal travel is slightly long, for it to make light contact with the Steering Column. On cars with this set up MSV advise: Sweep the Pedal through its full stroke as if bleeding the Brakes and check clearance.

  • Page 47: Brake Bias

    3.5.3 Brake bias Brake bias can be adjusted by the knob located on the top right corner of the cockpit, rotating the knob counter- clockwise will shift brake balance toward front. 3.5.4 Brake Bias Cable Two options are available: • Standard length with p/n 161815005.
  • Page 48 Tatuus has manufactured a new brake balance bar with the aim of extending its lifespan. The new assembly will be made by: • 1x Bias cable p/n. 161815005 • 2x Special washer p/n. RS130300015 • 2x Bush p/n. 161816006 •...

  • Page 49: Screen / Deflector

    3.5.5 Screen / Deflector A new Screen or Deflector can be made, but it must be to the same profile as the original one and be made from the same thickness Lexan material. Its upper edge must be no greater than 30mm from the top of the chassis.

  • Page 50: Bodywork

    ODYWORK Floor rubber pad It is required to add 2 floor rubber pads PN: GB301D1009 as shown in the following figure. Their purpose is to bridge the gap between the top of the floor and the bottom of the sump, to reduce underfloor deformation in the area where the rear chassis stand is placed.

  • Page 51: Geometry

    EOMETRY 3.7.1 Setup Adjustments FRONT REAR Pushrod +2.25mm +2.25mm RIDE HEIGHT +1 turn push rod adjust. +5.1mm +6.6mm CAMBER 0.31° (3.2 mm/°) 0.25° (4.0 mm/°) Shim +1mm TOE (TOTAL) 1.28° 1.64° +1 turn rod adjuster Wheel/Damper ratio NB - MSV draw your attention to the thread engagement of Front and Rear Pushrod Rod Ends: At any ride height a minimum of 15mm of Rod End thread should be engaged with the Adjuster Sleeve.

  • Page 52: Front Pick-Up

    15.0 34.0 An alternative make of Rod End is available from MSV as an upgrade option. P/n of the alternative part is 22CML05U2 3.7.2 Front pick-up Pick-up RC height Camber Anti-dive [%] position [mm] derivative @ 20mm FRH [°/10mm] Standard 0,04 Version 1.03...

  • Page 53: Rear Pick-Up

    3.7.3 Rear pick-up NB - MSV recommend replacing the Rear Lower Wishbone Rearward Leg Bolts as a precaution if the car has experienced off track excursions. Version 1.03...
  • Page 54 The following table summarises the anti-effects that can be set changing the rear pickup points using the bracket 16-15-10-021/022 (see image for nomenclature), the roll centre height is measured from the ground for a static rear ride height of 35mm. Only the pick-up positions listed in the table below are permitted – NB: the two high camber gain settings, noted thus **, are not permitted at Spa Francorchamps.

  • Page 55: Steering Geometry

    TEERING GEOMETRY 3.8.1 Geometry Pinion primitive diameter: 19.0 mm Steering ratio: 10° Ackerman: 29% 3.8.2 Track rod Due to a recent failure of the track rod ball joint PN: 010009014, MSV request all teams check the track rod ball joints for signs of cracks. All teams are reminded that checking the suspension and steering components including track rod ball joints should be part of the regular routine maintenance of the car.

  • Page 56: Vertical Stiffness

    ERTICAL STIFFNESS 3.9.1 Front The table below summarises stiffness options available and relevant stiffness at the wheel: Spring stiffness [lb/in] 1000 1100 1200 1300 Ground stiffness [daN/mm] 12,2 13,4 14,6 15,9 Springs can be preloaded acting on the damper/spring platform, the pitch of the thread is 2mm. 3.9.2 Rear The table below summarises stiffness options available: Spring stiffness [lb/in]...

  • Page 57: Roll Stiffness

    3.10 R OLL STIFFNESS 3.10.1 Front The motion ratio of the front anti-roll bar is: Blade length [mm] [°/°] 13,4 15,8 anti-rollbar chassis it represents the torsion angle of the antiroll bar resulting from a roll of 1° on the chassis. The following table summarises anti-roll bar options available: Rollbar diameter [mm] 11,5...

  • Page 58: Damping

    3.11 D AMPING Dampers must be serviced by Oram (or it’s appointed agent) via MSV. The valving is unique to the championship. Serial numbers will be logged and checked. Also, dampers may be removed during the season for checking both on a suitable testing machine and internally. 3.11.1 Damper operation NB –...

  • Page 59: Damper Curves

    3.11.2 Damper Curves The graph illustrated below indicates the damping behavior. It is to be considered indicative. The curves produced may undergo variations based on the test conditions. Peak Velocity Compression 13,2 17,9 24,2 30,5 46,2 77,9 109,0 138,2 -100 Rebound -150 Velocity [mm/s]...

  • Page 60: Wheels And Tyres

    WHEELS AND TYRES HEELS Front wheels: OZ aluminium 8.0 inches Rear wheels OZ aluminium 10.0 inches No other wheel makes are permitted Here below hub details: Wheel nut tightening torque: 180 Nm Version 1.03...

  • Page 61: Tyres

    YRES The content below shows information relevant to the Pirelli tyre. 4.2.1 Pirelli Technical Prescriptions Camber Max Up to Camber Tyre Ptarget Pmin Weight [°] all cir- Max - Width size [bar] [bar] cuits except 200/540- FRONT 8x13 -5.00° -5.00° SLICK 250/575- REAR...
  • Page 62 CAMBER MAX (negative) This is the maximum negative camber permitted by the regulations. Negative camber greater than this limit should never be used otherwise the integrity of the tyre will be compromised. Camber may be different between the left and the right side of the car, always respecting the maximum regulation values.

  • Page 63: Pirelli Front Tyre

    4.2.2 Pirelli front tyre Pirelli supply as front tyre: SLICK-DM 200/540-13 - (Rim 8.0) Te following graphs summarise deflection and stiffness under vertical load at 0° and -3° of camber setting: SLICK-DM 200/540-13 (Rim 8.0 J , Camber -3°) 1.6 bar 1.4 bar 1.2 bar 1.0 bar...
  • Page 64 SLICK-DM 200/540-13 - (Rim 8.0 J , Camber 0°) 1.6 bar 1.4 bar 1.2 bar 1.0 bar 0.8 bar Q [kgf] SLICK-DM 200/540-13 - (Rim 8.0 J , Camber 0°) 1.6 bar 1.4 bar 1.2 bar 1.0 bar 0.8 bar Q [kgf] Version 1.03...

  • Page 65: Pirelli Rear Tyre

    4.2.3 Pirelli rear tyre Pirelli supply as front tyre: SLICK-DM 250/575-13 - (Rim 8.0) The following graphs summarise deflection and stiffness under vertical load at 0° and -3° of camber setting: SLICK-DM 250/575-13 - (Rim 10.0 J , Camber -3°) 1.6 bar 1.4 bar 1.2 bar...
  • Page 66 SLICK-DM 250/575-13 - (Rim 10.0 J , Camber 0°) 1.6 bar 1.4 bar 1.2 bar 1.0 bar 0.8 bar Q [kgf] SLICK-DM 250/575-13 - (Rim 10.0 J , Camber 0°) 1.6 bar 1.4 bar 1.2 bar 1.0 bar 0.8 bar Q [kgf] Version 1.03...

  • Page 67: Aerodynamic

    AERODYNAMIC ENERAL NOTES Drag [SCx]: total drag (including wheels) of the car resolved to the tire contact point. Downforce [SCz]: total downforce generated by the car, excluding wheel lift. Balance [%F]: percentage of the total downforce acting at the front contact point. Efficiency (E = L/D): vehicle efficiency All forces are reported as percentage from the datum point.

  • Page 68: Front Wing Setting

    RONT WING SETTING To further extend the front flap incidence range, a new full row of holes has been added on the endplate. Version 1.03...
  • Page 69 6.5° 12.5 18.5° 13.5 19.5 14.5 20.5 15.5 21.5 10.5 16.5 22.5 11.5 17.5 23.5 1’ 24.5 30.5 36.5 2’ 25.5 31.5 37.5 3’ 26.5 32.5 38.5 4’ 27.5 33.5 39.5 5’ 28.5 34.5 40.5 6’ 29.5 35.5 41.5 Optional 6mm gurney available. Front gurney kit is ref FF02H1010. As per the Factory Set Up Sheet, the Nose Shim that sets the angle of the Front Wing Mainplane is the 3°, Part No 161404035: Version 1.03...

  • Page 70: Rear Wing Setting

    EAR WING SETTING Rear flap angle is adjustable with plates: Version 1.03...

  • Page 71: Aerodynamic Reference Setup

    ERODYNAMIC EFERENCE SETUP Front and Rear Ride Height are defined as the distance of the reference plane (5mm above the bottom of the skid block) from the ground at the wheel axles. FW Flap angle is defined as the angle between the reference plane and the line tangent to the upper surface of the Flap, near the endplate.

  • Page 72: Ride Height Sensitivity

    EIGHT SENSITIVITY The following tables report the percentage changes from the datum point resulting from the change of the ride heights (FRH = Front Ride Height / RRH = Rear Ride Height): 106.4% 105.3% 104.2% 103.1% 102.0% 100.9% 99.6% 98.3% 97.0% 95.7% 94.4%...

  • Page 73: Wings Sensitivity

    INGS SENSITIVITY The following table report the percentage changes from the datum point resulting from the change of Front Flap angles and Rear Wing Top Assembly angle (FW = Front Wing Flap / RW = Rear Wing Assembly). Version 1.03...

  • Page 74: Brake System

    BRAKE SYSTEM ASTER YLINDERS Standard front master cylinder: 19mm (0,75”) Standard rear master cylinder: 21.2mm (0,875”) Optional master cylinder are available and listed in the parts Ctalogue The same master cylinder size can be used on front and rear axles. ISCS Minimum thickness of front brake disc rotor is 19.0mm.

  • Page 75: Fuel System

    FUEL SYSTEM VERVIEW The fuel system is a complete circuit. Fuel flow is sent by the high pressure pump through the fuel filter and out of the fuel cell bladder. Fuel pressure is regulated by the pressure regulator, and the return line goes back to the fuel pump collector in the tank.

  • Page 76: Maintenance

    AINTENANCE Regular maintenance should be done on the following items: Fuel filter: check after every meeting for impurity • Fuel pump: current consumption can be monitored within data logger • Quick coupling: always check that releasing cables are correctly installed and tighten. •...

  • Page 77: Electric System

    ELECTRIC SYSTEM VERVIEW The wiring loom is split in five main parts: • Main switch: electrically operated • Battery is installed in the cockpit behind driver seat • Alternator is managed by engine supplier • Powerbox: current distribution is managed by a 9 line powerbox •...

  • Page 78: Battery And Alternator

    ATTERY AND LTERNATOR The battery is a crucial component interacting with the engine and gearbox management systems. Always pay attention to its charge level especially if you are running reset procedures. NOTE: if battery power is low, high current consumption (such as a gearshift actuation) could result in an engine stall.

  • Page 79: Powerbox

    OWERBOX The PSD9 powerbox manage the current distribution on the following power lines: Fuel Pump Rain light DAQ/ECU/GCU Engine valves Coils, injectors Coils, injectors (redundant) Starter A Starter B The powerbox cuts current supply in case of over-load, the system can be reset with a power cycle but current cut will re-occur if problem persists.

  • Page 80: Annexes

    ANNEXES IGHTENING TORQUE CLASS 10.9 12.9 Thread Pitch Torque Torque Torque 2.5 – 3.06 3.52 – 4.30 4.22 – 5.16 4.93 – 6.04 6.93 – 8.50 8.32 – 10.20 8.47 – 10.47 11.92 – 14.59 14.30 – 17.51 1.25 20.41 – 25.07 28.70 –...

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