INSTRUCTION MANUAL & REFERENCE GUIDE
INTRODUCTION The Serpent Natrix 748e is based on the successful Natrix 748 gaspowered car ( worlds TQ and Vice champion), combining ultimate performance into a single package. The 00mm wide electric powered racing car offers superb handling with the durability of a stronger 00mm car. The Serpent Natrix 748e is designed to be a world champion, while still being easy to use, assemble, and set up. You are now part of the worldwide network of Serpent drivers, which gives you superior technical support and access to many benefits that only Serpent drivers can enjoy. The Serpent Natrix 748e offers state of the art specifications and leads the way in 00mm chassis design, using all the knowledge we have from /0 and /8 scale racing into this design too. Continuously pushing the performance envelope, Serpent s engineers have added many new and innovative features that can help take your Serpent 748-e into the winner s circle. Enjoy racing! Team Serpent INSTRUCTIONS Serpent s long tradition of excellence extends to the instruction manuals, and this instruction manual is no exception. The easy-to-follow layout is richly illustrated with 3D-rendered full-color images to make your building experience quick and easy. Following the instructions will result in a well-built, high-performance race-car that will soon be able to unleash its full potential at the racetrack. Instructions, how to use The kit includes bags, with bagnumbers, which refer to the same step in the manual. Open only the indicated bag(s) per step and finish that part of the assembly. Remaining parts will be needed lateron in the assembly process. SETUP In certain assembly steps you need to make basic adjustments, which will give you a good initial setup for your Serpent S0 LTR. Fine-tuning the initial setup is an essential part of building a high-performance racecar like yours0 LTR. EXPLODED VIEWS AND PARTS LIST The exploded views and parts lists for the Serpent S0 LTR are presented in the Reference Guide section in the back of this manual. The exploded views show all the parts of a particular assembly step along with the Serpent part number. The parts lists indicate the part number andname of each part for easy reference when ordering. Customer service Serpent has made a strong effort to make this manual as complete and clear as possible. Additional info may be published in our website: www.serpent.com or you may ask your dealer or the Serpent distributor for advice, or email Serpent direct: info@serpent.com The Serpent Facebook, Twitter and Youtube pages give additional means of support and communications. Safety Read and take note of the Read this First section before proceeding to assemble the car-kit. This car-kit is intended for persons aged 6 or older. Read this first! - This is a highly technical hobby product, intended to be used in a safe racing environment. This car is capable of speeds in excess of 80 km/h or 50mph. Please follow these guidelines when building and operating this model. - Parental guidance is required when the builder/user of this car is under 6. - Follow the building instructions. If in doubt, contact your dealer or importer. - Be sure to use the proper tools when assembling the car. Always exercise caution when using electric tools, knives and other sharp objects. - Be careful when using liquids like lubrication oil, fuel or glue. Do not swallow. - Follow the manufacturer s instruction in case you experience irritation after using the product. - Be careful when operating the car. Stay away from any rotating parts such as wheels, gears and transmission. Stay away from motor, engine and exhaust pipe system or speedo during and immediately after use, as these parts may be very hot. We advise to use protective hand cloves. - Only operate this car in a safe environment, like a special racing track or a closed parking lot. Avoid using this car on public roads, crowded places or near infants. - Before operating this car, always check the mechanical status of the car. Also check that the transmitter and receiver frequencies correspond and are not used by any other racer at the same time. Check that the batteries of the transmitter and receiver- are fully charged. - After use, always check all the mechanics of the car. We advise to clean the car immediately after use, and inspect the parts for wear or fractures. Replace when necessary. Do not use water, methanol, thinner or other solvents to clean the car. - Empty the fuel tank (depending on model) if needed and disconnect the receiver battery. - Store the car in a dry and heated place to avoid corrosion of metal parts. - Avoid using this car in wet conditions as the water will cause corrosion on the metal parts and bearings and these parts will cease to function properly. If driven in the wet, ensure that all the electric equipment is waterproofed and after use, that all moving parts are dried immediately. CONTENTS FRONT DIFFERENTIAL ASSEMBLY 4 REAR DIFFERENTIAL ASSEMBLY 9 TRANSMISSION ASSEMBLY 6 STEERING ASSEMBLY 9 REAR ASSEMBLY FRONT ASSEMBLy 4 RCM SHOCKS ASSEMBLY 9 ELECTRONICS ASSEMBLY 0 REFERENCE GUIDe
Each step contains a variety of numbers, lines, and symbols. The numbers represent the order in which the parts should be assembled. The lines and symbols are described below. USING THE MANUAL Step number; the order in which you should assemble the indicated parts Length after assembly Assembly path of one item into another Group of items (within lines) should be assembled first Direction the item should be moved Glue one item to another Press/Insert one item into another Connect one item to another Gap between two items Apply transmission grease (Grey), threadlock* (Blue), CA glue* (Red) or silicone grease (Orange). (*Items not included.) Apply silicone oil, ASSEMBLY INSTRUCTIONS
4 FRONT DIFFERENTIAL ASSEMBLY BAG FRONT DIFF.5x8 Use some grease during assembly NOTE: In step to mount the pin, first put the pin in the purpose made slot as shown, and after slide it through the hole in the shaft..5x8 Use some grease during assembly 3 3. NOTE: Add just enough oil to cover the large gear before assembling the small satellite gears and cross pins (step 3.3). 3. 4 4. 4. NOTE: ) Assemble the o-ring before adding the oil. ) Add oil so the cross pins are just covered (DO NOT overfill). NOTE: The diff assembled as shown here, should weigh max 7. grams M.5x0
5 5 BAG REAR DIFF REAR DIFFERENTIAL ASSEMBLY.5x8 Use some grease during assembly NOTE: Step 5 and 6 To mount the pin, first put the pin in the purpose made slot as shown, and after slide it through the hole in the shaft. 6.5x8 Use some grease during assembly 7 7. NOTE: Add just enough oil to cover the large gear before assembling the small satellite gears and cross pins (step 3.3). 7. 8 8. 8. NOTE: ) Assemble the o-ring before adding the oil. ) Add oil so the cross pins are just covered (DO NOT overfill). NOTE: The diff assembled as shown here, should weigh max 9. grams M.5x8
6 9 KIT CA Glue To prevent the risk of the carbon fibre splitting in the event of a crash you should apply CA Glue around the chassis edge as shown in red below. 0 Bag TRANSMISSION ASSEMBLY.5x 0. 0. M3x5 0T 3 4 R5 8T Roll center inserts DOWN MID UP M3x8 M3x8 M3x8 Default setup
7 Bag 3 M3x0 M3x 3 5x8x.5 5x8x.5
8 4 M3x0 M4x0 M3x0 Bag 3 x8x4 x8x4 Note orientation of the excenters 5 M3x0 x8x4 x8x4 M3x0 Note orientation of the excenters M3x0 Transmission assembly detail view
6 STEERING ASSEMBLY 6. 6. 4x7x.5 4x7x.5 mm Servosaver ackerman inserts M3x8 FORWARD NARROW REARWARD NARROW FORWARD WIDE REARWARD WIDE Default setup 7 7. 7. Bag 4 M3x0 8.5 mm Use the following servo horns with this brand of servos: 3 - Sanwa / KO/ JR 4 - Hitec 5 - Futaba / Hitec/ Savox 7.3 3x5x 3x5x NOT INCLUDED M3x8 3x5x M3x8 3x5x M3x5 9 3
0 7.4 3x7x7 3x7x7 M3x 8 8. 8. 5x8x.5 8x5x.5 Flanged 9
0 REAR ASSEMBLY M3x4 M3x8 Bag 5 3x6X3 M3x M3x0 3X5X mm mm. 0 mm.
3 3. 5x8x.5 3. M3x3 M3x3 M3x3 4 4. 0x5x4 Bag 6 0x5x4 M3x3 x0 3 4 4. 4.4mm 3mm
3 5 5. 6.8 mm 5. 4 5 Note the position in the rear camber link M3x0 3 6 x0 x0 M3x0 M3x0 M3x0
4 FRONT ASSEMBLY 7 M3x4 M3x4 Bag 7 mm mm 3.x7x0.5 M3x mm 8 7mm 9 9. M3x3
5 9. Front anti-roll bar detail view M3x3 M3x3 30 M3x0 M3x0 3.x7x0.5 3.x7x0.5 Front suspension brackets up INSIDE MID OUTSIDE Default setup
6 3 3 M3x4 Note the position of the caster shims 4mm mm mm mm 3 3. 3.x7x0.5 Nylock nut M3 Bag 8 M3x0 New 748 steering blocks introduce a new setting possibility, running neutral, trailing or leading position. STEERING BLOCKS INSERTS Leading position LEFT SIDE Trailing position FORWARD MID BACKWARD INITIAL SETTING:RIGHT AND LEFT NEUTRAL CONFIGURATION Leading position RIGHT SIDE Trailing position
7 3. 0x5x4 M3x3 4 0x5x4 x0 3 x0 3.3 M3x5 33 5.4mm 5.mm 34 34. 7. mm 34.
9 RCM SHOCK ASSEMBLY 35 35. 35. Bag 9 Use some oil during assembly.5x6x0.5 Check the default set-up sheet for the correct piston to use Use some Locktite to fix the nut Nut M.5 35.3 35.4 Use some oil during assembly Pull shockrod to bottom position before to fill the shock body with the supplied shock absorber oil.. BLEEDING Slowly move the shockrod up and down to let all airbubles escape. 35.5 35.6 Close the top of the shock After assembly ensure you can push the piston all the way in (top of balljoint should hit the shock-bottom). If not, re-open the shock and let some oil bleed out, and repeat the steps. Allow some rebound on the shockshaft, around 4mm is normal. Measure fully extended mm 35.7 Insert the o-ring inside the springnut Assemble the spring-nut 3 Assemble the spring and springcup to complete the shock
8 36 Bag 0 Nylock nut M3 M3x0 M3x8 37 3 M3x0 M3x8 3.x7x0.5 M3x8 M3x0 38 x0 x0
0 39 Default front upper shocks position 40 Default rear upper shocks position ELECTRONICS ASSEMBLY 40 NOT INCLUDED Motor assembly detail view M3x8
4 NOT INCLUDED NOT INCLUDED 3 Tip: Use double sided tape to mount the ESC to the chassis, and RX to the top part of the servo (if there is not enough space on the chassis). 4 Nylock nut M3 3x5x Nylock nut M3 3x5x M3x M3x 43 NOT INCLUDED M4 Flanged M4 Flanged
REFERENCE GUIDE
3 MID SHAFT ASSEMBLY 8043 007 804 0303 005 Spur gear 48P / 69T 006 Spur gear 48P / 7T 007 Spur gear 48P / 75T 08 80437 FR/RR DIFF ASSEMBLY 804347 80435 FRONT 50090 00 50046 50046 50047 50048 50046 00 50090 80435 804347 03 REAR 80435 079 80435 Geardiffs 804356 Geardiff front 748 804357 Geardiff rear 748
4 04 0409 80438 0 008 000 004 004 004 04 804335 04 004 80457 65 80454 057 0 07 80433 80470 804333 4043 346 346 80453 80453 804334 80436 80480 8049 8045 8045 80468 8043 009 009 009 338 338 40399 40399 0 0 804336 008 008 008 008 804380 80434 453 4034 804337 453 0 4034 80430 8044 8043 8049 8045 80433 346 346 009 804379 8040 000 00 0 0 0 07 406 9038 0409 TRANSMISSION-STEERING ASSEMBLY 80430 3 9055 3 00
5 REAR ASSEMBLY 80398 06 809 008 80446 647 9033 03 8048 8033 344 344 808 8048 8048 8048 8084 000 04 008 008 04 804306 04 80 407 9038 9033 80339 06 903334 80 04 8046 65 009 0409 07 047 453 805 9033 80440 65 008 009 80434 9038 8040 06 3
6 FRONT ASSEMBLY 8034 8035 008 008 008 406 8060 808 009 009 8084 8084 05 90387 80479 009 453 804338 08 008 80467 8048 040 040 80433 80405 344 344 80430 80430 040 90353 040 809 80398 05 06 903343 8047 4048 4063 80407 0 80335 80335 80443 06 06 3 8084 8084
7 SHOCKS ASSEMBLY 0437 0438 606 609 6034 607 6097 Spring grey TC 6098 Spring black TC 6099 Spring green TC 60300 Spring white 6030 Spring yellow 6030 Spring orange 60303 Spring red 60304 Spring Pink 60305 Spring blue 60306 Spring purple 6030 Spring-set L3 (5x) 608 6030 603 600 6030 605 609 644 909405
8 FINAL ASSEMBLY I 80 008 80495 80495 80 667 80483 040 009 04 008 040 80 008 65 000 040 009 804305 65 008 004 05 NOT INCLUDED 65 008
9 FINAL ASSEMBLY II 0405 040 07 804309 040 494 040 07
30 TEAM SERPENT NETWORK NATRIX 748e SPARES NATRIX 748e OPTIONALS SERPENT TOOLS SERPENT MERCHANDISING website and blog social media
3 NEWS / NOTES
www.serpent.com - info@serpent.com 748e version