Serpent Natrix 748 User manual

INSTRUCTION MANUAL
& REFERENCE GUIDE

Welcome to Serpent
The Serpent NATRIX 748 1/10 scale
gaspowered car, combining ultimate
performance into a single package. The
200mm wide gas-powered racing car offers
superb handling and durability .
The Serpent NATRIX 748 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 748 offers state of the
art specifications and leads the way in 200mm
chassis design, using all the knowledge we
have from 1/8 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 into the
winner’s circle: new geometry, roll-centers
and weight balance, combined with a very
open and very accessible design.
INSTRUCTIONS
Serpent’s long tradition of excellence
extends to their 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 racecar that
will soon be able to unleash its full potential
at the racetrack. This instruction manual
has been divided into sections that will
logically lead you through the assembly
process of your Serpent NATRIX 748.
Follow the assembly steps in the order
presented to ensure that no problems
occur during assembly. Each step indicates
all the fasteners and small parts used.
Bag numbers identify the kit bag(s) that
contains the appropriate parts.
EXPLODED VIEWS AND PARTS LIST
The exploded views and parts lists for the
Serpent NATRIX 748 are included 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 and
name of each part for easy reference when
ordering.
All information about the Serpent NATRIX
748 is accessible from the Serpent 748
product page which can be found on Serpent.
com and can be accessed by simply typing
www.serpent.com/804007 into your web
browsers address bar.
From the Serpent NATRIX 748 product page
you will find the very latest information
about your NATRIX 748: reports by team
drivers and other experts, tips and tricks,
setups, image gallery and downloadable
files including the latest version of the
instruction manual will be made available as
downloadable PDFfiles.
Enjoy racing!
Team Serpent
CONTENTS
FRONT ASSEMBLY 4
REAR ASSEMBLY 9
BALL DIFF ASSEMBLY 10
TRANSMISSION ASSEMBLY 11
SHOCKS ASSEMBLY 14
FINAL ASSEMBLY 17
REFERENCE GUIDE 18
PARTS LISTS 26
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 16 or older.
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.
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 many assembly steps you mount specific
parts that suit the default set-up. We advice to
keep the seperate default set-up sheet alongside
the manual, during all assembly.
Other finetuning of the set-up, must be done at
the track.

Read this rst!
- 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 16.
- 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 corro-
sion
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.
Length after assembly
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.
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
Step number; the order in which you should
assemble the indicated parts
USING THE MANUAL
1
Apply silicone grease (Orange),
Apply graphite grease (Grey),
Apply threadlock (Blue),
Apply silicone oil,

Page
4
STEP
1
STEP
2
STEP
3
STEP
4
FRONT DIFFERENTIAL ASSEMBLY
BAG
FRONT
DIFF
Oil level
M2.5x8
M2.5x8
5x15x0.2
Use some
Locktite on
this bolt
Use some
Locktite on
this bolt
Widethread
M2.5x12
Tighten all screws
step by step to close
the differential
5x15x0.2
3.1
4.1
3.2
4.2
Use some silicone oil
during assembly
Use some silicone oil
during assembly
Fill the diff case
with silicone oil till
the level showed
in the picture.
1
1
1
3
3
1
2
22

Page
5
STEP
5
STEP
6
STEP
7
STEP
8
BAG
REAR
DIFF
REAR DIFFERENTIAL ASSEMBLY
Oil level
M2.5x8
M2.5x8
5x15x0.2
Use some
Locktite on
this bolt
Use some
Locktite on
this bolt
Widethread
M2.5x12
Tighten all screws
step by step to close
the differential
5x15x0.2
7.1
8.1
7.2
8.2
Use some silicone oil
during assembly
Use some silicone oil
during assembly
Fill the diff case
with silicone oil till
the level showed
in the picture.
1
1
1
3
3
1
2
22

Page
6
STEP
9
STEP
10
STEP
11
Bag
1
REAR ASSEMBLY
Note orientation of the inserts
M3x8
M3x4
M3x8
M3x10
M3x12
3x6X3
3X5X1
1mm
1mm
1mm
1
2

Page
7
STEP
12
STEP
13
12.212.1
M3x8
M3x6
6x10x3 Flanged
6x10x3 Flanged
1
1
23
M3x8
Bag
2

Page
8
STEP
14
STEP
15
M3x12
12x18x4
12x18x4
1
1
2
Note orientation of the excenters
11 mm
15.1
15.2
STEP
16
5x8x2.5
16.1
Bag
3

Page
9
M4x6
R7
R5
2.5x12
6x12x4
6x12x4
1
2
2
3
4
M3x3
M3x3
M3x3
16.2
16.3 M3x14
M3x14
Note orientation of the connectors for
assembling the rear anti-roll bar.
Note:
1) Rotate the connectors
2) Put the RH M3x14 screws
1
2
2
STEP
17

Page
10
SHIFT POINT
SCREW
SHIFT POINT
SCREW
M3x3
M3x10
M3x10
M3x3
M3x6
M3x6
1
1
2
3
2
3
5x5
5x5
NOTE:
Screw in all the way,
then unscrew 3 turns
NOTE:
Screw in all the way,
then unscrew 3 turns
18.1 18.2
18.3
GEARBOX ASSEMBLY
2.5x12
1
2
STEP
18
STEP
19
R5

Page
11
STEP
20
STEP
21
10x15x4
10x15x4
2x10
M3x3
20.1
20.2
21.2
21.1
1
1
1
23
45
34
6.8 mm
M3x16
M3x10
M3x6
M3x6
M3x16
Note the position in the rear
camber link
Bag
4

Page
12
STEP
22
STEP
23
STEP
24
M3x12
M3x6
M3x6
M3x4
M3x4
M3x12
1mm
1mm
FRONT ASSEMBLY I
Bag
5
Note: Front bearing blocks are
not symetric
Note: Front suspension brackets
are not symetric

Page
13
STEP
25
STEP
26
6X10X3 Flanged
6X10X3 Flanged
M4x6
M3x6
M3x8
M3x8
2.5x12
12x8x4
12x8x4
1
1
1
2
2
3
4
4
3
Note orientation of the excenters
25.1
25.2
Bag
6
R5
R5

Page
14
STEP
27
STEP
28
28.1
28.2
M4x10
M3x3
M3x3
M3x3
27mm

Page
15
STEP
29
STEP
33
Note the position of the steering servo “ears”. Each one is in one side of the radio box.
NOTE: Servo’s wire diagram
M3x10
M3x6
M2x6
M2x6
M3x16
M3x10
RADIO ASSEMBLY
1
NOT
INCLUDED
2
Bag
7

Page
16
STEP
32
STEP
33
STEP
31
Use the following servo
horns with this brand of
servos:
23 - Sanwa / KO/ JR
24 - Hitec
25 - Futaba / Hitec/ Savox
M2x6
M2x6
M3x5
M3x6
M3x6
M3x6
NOT
INCLUDED
10 mm
M3x10
33.1
33.3
33.2

Page
17
STEP
35
STEP
36
STEP
34
M3x5
M3x5
5x8x2.5 Flanged
M3x8
3.2x7x0.5
R4
M3x8
M2.5x5
M3x8
M3x8
M3x6
M3x6
M3x6
M3x5
NOT
INCLUDED
NOTE: Receiver’s power input
wire diagram
NOTE: For using
nimh receiver bat-
teries it is needed
to raise the fueltank
2mm adding 2mm
shims between the
fuel tank mountings
and the radio plate.
Bag
8

Page
18
M3x10
M3x6 M3x14
5X8X2.5
Flanged
5x8x2.5
M3x10
M3x10
11
2
3
STEP
37
STEP
38
STEP
39
39.1 39.2
38.1 38.2
M3x6

Page
19
M3x6
M3x5
M3x6
M3x10
M3x10
M3x10
M3x10
4x7x2.5
4x7x2.5
STEP
40
STEP
41
40.1 40.2
M3x6
M3x5
Bag
9

Page
20
4mm
1mm
2mm
2mm
Note the position of the
insert
Note the position of the
caster shims
RIGHT AND LEFT
NEUTRAL CONFIGURATION
New 748 steering blocks introduce a new setting
possibility, running neutral, trailing or leading
position.
STEP
42
STEP
43
STEP
44
M3x4
M3x10
3.2x7x0.5
M3x10
3.2x7x0.5
Nylock nut M3
Leading position
Leading position
Trailing position
Trailing position
LEFT SIDE
RIGHT SIDE
M3x10
1
2
3
44.1
Bag
10