Serpent 710 Instruction Manual

Instruction Manual

2

Congratulations on your newly acquired Serpent 710. You have chosen the highest quality, ultimate-performance 200mm racecar that is easy to use, assemble, and set up. As part of the worldwide team of Serpent drivers, you will also get superior technical support. Serpent has a tradition of excellence with instruction manuals, and with the new Serpent 710 manual we have yet again gone a step further. The new layout has easy to follow step-by-step assembly instructions and building tips, richly illustrated with 3D rendered full-color images. 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.

Instructions

This instruction manual has nine sections that will lead you through the assembly process of your Serpent

710. 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 are also shown to identify the kit bag that contains the appropriate parts for the step. When building your 710, do not empty the parts bags as you will need to refer to the parts by bag number several times during the various assembly stages.

Set-up

In certain assembly steps you need to make basic adjustments, which will give you a good initial setup for your Serpent 710. Note that fine-tuning the initial setup is an essential part of building a high-perform-

ance racecar like your Serpent 710. The Set-Up Book included in your Serpent 710 kit will help you to adjust your car. It contains detailed information on making basic settings, as well as in-depth information about the effect of changing the settings. Be sure to follow the procedures and be accurate with your adjustments not only now, but every time you prepare the car for practicing or racing. This is how the best drivers in the world do it - simple, straight forward, and accurate!

Exploded views and parts list

The exploded views and parts lists for the Serpent 710 are contained in a separate Reference Guide. The exploded views show all the parts of a particular assembly step, together with the Serpent part number. The parts lists at the end of the Reference Guide indicate the part number and name of each part for easy reference when re-ordering.

Safety precautions

Included with your Serpent 710 kit is a document entitled “Read This First” that covers safety precautions for the assembly and use of this product. We strongly recommend that you thoroughly read and understand that document, and follow all the precautions.

Section Page

1.0 Front Assembly 4

2.0 Differential Assembly 9

3.0 Rear Assembly 11

4.0 Shock Assembly 16

5.0 Bodymount Assembly 19

6.0 Radio Plate Assembly 21

7.0 Gearbox Assembly 24

8.0 Centax Assembly 26

9.0 Final Assembly 29

Introduction

Contents

PERFORMANCE THROUGH EVOLUTION

3

Using the manual

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.

Line/Symbol

Description

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.

Gap between two items.

Apply graphite grease (GR), threadlock (TL), CA glue (CA) or Serpent’s One-way Lube (OW). (items not included).

myTSN.com

The printed instruction manual included with your Serpent 710 kit is very complete, though due to continuous product development, more up-to-date information is provided at our myTSN.com web portal. This state-of-the-art R/C technology portal is where Serpent racers from all over the world meet and exchange their ideas, and share useful information and experiences about their Serpent cars.

All information about the Serpent 710 is accessible from the Serpent 710 product page on myTSN.com. You can access this page by going to the Products section, then search for the ‘Serpent 710’ product name.

From the Serpent 710 product page you will find the very latest information about your Serpent 710: reports by team drivers and other experts, tips and

tricks, FAQ, forums, setups, image gallery, downloadable files, and even streaming video of the Serpent 710 on how to further improve the car. The latest version of the instruction manual (including team and racer tips, and part lists and option lists) will be made available as downloadable PDF-files and online viewable pages under ‘i-Manual’.

So be sure to visit myTSN.com and the Serpent 710 page. There is a world of up-to-date information about your Serpent 710 waiting for you, and it is just a few mouse clicks away! If you are not yet a member of myTSN, we strongly recommend that you sign up immediately so you can experience and enjoy an even wider range of services from Serpent and other myTSN partners.

www.myTSN.com/Serpent710

OW

Connect one item to another.

Length after assembly.

4

Step 1.1

Bag 06, 16, B12

B12

3.5x9.5mm

E14

3x16mm

1.0 Front Assembly

Step 1.2

Step 1.3

3

2

4

1

3

5

2

5

4

3

Assemble both front lower arms using the indicated steps.

2mm

IMPORTANT!

Adjust both left and right upstop setscrews equally, otherwise the car may become tweaked under braking.

H12

3x10mm

H9

3x4mm

H9

3x4mm

H11

3x8mm

Bag 02, 15

Bag 04

B12

H9

H12

H11

E14

H9

H11

E14

H9

G11

3x8mm

5

Step 1.4

Step 1.5

Step 1.6

3

2

1

Assemble both front upper arms using the indicated steps.

Default placement of front roll center alu spacers

4mm

2mm 1mm

Caster Spacer Placement

<

>

L3

M3

E20

4x12mm

EF23

4x25

Bag 06, 17

H9

3x4mm

Bag 02, 15

G11

L3

EF23

E20

H9

Dont tighten screws EF23. They will be removed in step 6.7.

<

6

Step 1.7

Step 1.8

2

3

4

5

6

1

2

OW

1

6

E11

3x8mm

E12

3x10mm

Bag E11,

E12

H11

3x8mm

Bag 11, 18

35T

E11

H11

E12

It is possible to lock the front axle using the option set #802252

7

E12

3x10mm

U13

12x18mm

E10

3x6mm

Step 1.9

Step 1.10

Step 1.11

Bag E10,

U, 19

3

1

2

4

2

1

5

3

Change the position of BOTH eccentric hubs to adjust front belt tension. Both hubs should have the same position.

Assemble both steering blocks using the indicated steps. Left steering block shown.

Do not overtighten alu plugs. Pivotballs should move freely without binding or excessive play.

Assemble both steering blocks as shown.

IMPORTANT!

Ensure the front suspension

moves up and down freely without binding.

17mm

16.5mm

Looser

Loose

Tighter

Default

Bag U, E12,

07, 13

H8

3x3mm

P1

2x10mm

U11

10x15mm

E12

U13

U11

P1

U11

H8

E10

Front

Rear

8

B5

2.9x9.5mm

U6

6x13mm

B5

2.9x9.5mm

Step 1.12

Step 1.14

Bag U, 20

Bag 10

H16

4x4mm

R7

7mm

Step 1.13

Bag 12

2

1

2

1

4

5

3

1

2

22T

19T

U6

B5

R7

H16

B5

G10

3x6mm

9

2.0 Differential Assembly

Step 2.1

Step 2.2

Bag 11, 21

E18

4x8mm

Step 2.3

Bag U

U7

7x14mm

6mm

6.2mm

A

B

1

2

3

45T

U7

E18

F12

3x10mm

10

Step 2.4

Step 2.5

Step 2.6

H16

4x4mm

3

1

2

Differential Adjustment

Adjust the diff friction collar to adjust the differential action. Tighten the adjustment screw to increase the spin-resistance of the differential; loosen the adjustment screw to reduce the spin-resistance of the dif

ferential. The tighter the diff collar, the more the differential resists the difference in speed between the inner and outer wheel. As a rule of thumb, the more grip a track has, the tighter the diff collar should be.

Use this screw to apply pre-load to the differential. Tighten it so that the diff pulley doesn’t slip while holding both diff shafts but still turns as freely as possible.

Tighten this locking setscrew to lock your initial setting.

Bag 22

H16

F12

11

G22

4x20mm

F15

3x20mm

3.0 Rear Assembly

Q11

3x10mm

Step 3.1

Step 3.2

Bag 05, 08

Bag 23

E12

3x10mm

Step 3.3

Bag 07,

13, U

U13

12x18mm

2

1

2

1

3

1

2

Assemble both lower arms using the indicated steps.

Press pins into chassis so they are flush with bottom.

Default position of Dynamic Rear Steering (DRS) spacer.

Press ball into end of arm until it snaps into place.

Change the position of BOTH eccentric hubs to adjust rear belt tension. Both hubs should have the same position.

<

Tighter

Default

Loose

Looser

G22

Q11

F15

E12

U13

Front

Rear

12

B8

2.9x19mm

E13

3x12mm

Step 3.4

Step 3.5

Step 3.6

Bag 08, 13

Bag 05

H9

3x4mm

1

2

3

2

3

5

4

1

5

1

2

Note the orientation of the inserts. Ensure that all four inserts are the same.

Note the orientation of the inserts.

Note the orientation of the two inserts. Ensure that both inserts are the same, and are oriented the same as the matching inserts.

Bag 09,

15, 24

H12

3x10mm

B8

H9

H12

E13

Use the outer position

13

H9

3x4mm

B12

3.5x9.5mm

Step 3.7

Step 3.8

Bag 09, 15

Bag 03,

U, B12

P7

2.5x16mm

B12

3.5x9.5mm

Step 3.9

U6

6x13mm

1

2

3

2

6

1

2

5

4

Assemble both rear upper arms using the indicated steps.

Roughen metal plates with sandpaper before gluing.

Press pins into bulkhead until ends are flush with outer edge.

R3

3mm

U6

6x13mm

H9

U6

R3

P7

B12

U6

14

H17

4x6mm

Step 3.10

Step 3.11

Step 3.12

Bag 12, 25

E11

3x8mm

3

1

2

4

5

4

1

2

3

Adjust ball end until it is ush with end of swaybar.

48mm

1:1

R7

7mm

H16

4x4mm

Bag 14, 26

H8

3x3mm

22T

24T

R7

H17

H16

E11

H8

15

Step 3.13

Step 3.14

H8

3x3mm

P1

2x10mm

1

4

3

2

Assemble both rear hubs using the indicated steps.

Do not overtighten alu plugs. Pivotballs should move freely without binding or excessive play.

Assemble both rear hubs using the indicated steps.

IMPORTANT!

Ensure the rear suspension moves up

and down freely without binding.

19mm

19.5mm

18.5mm

Front

Rear

Bag 01,

27, U

U11

10x15mm

U11

P1

H8

16

Step 4.1

Bag 28

R1

1.9mm

N3

3x6mm

R2

2.3mm

Y17

12.1x1.6mm

4.0 Shock Assembly

Front shocks: short shock shaft and body Rear shocks: long shock shaft and body

Remove plastic flashing for smooth movement of pistons. Tab in upper piston fits in notches in lower piston

R2

N3

4

R1

Y17

3

2

1

2

1

Step 4.2

Step 4.3

Lubricate shock shaft with shock oil before inserting in shock body.

17

Y3

3x1.5mm

Fill the shock body with shock oil, with the piston at the bottom.

Bleeding

Let the oil settle and allow the air to escape. Slowly move the piston up and down to release any trapped air bubbles. Repeat as necessary until no bubbles appear.

Use a shock rod gripping tool, or grip the shock rod at top of exposed threads with side cutting pliers. Be sure not to damage the shock rod.

Y3

Step 4.4

Step 4.5

Step 4.6

1

2

Lubricate O-ring with shock oil before sliding onto shock shaft.

Hint:

Pre-thread balljoint with M3 screw for easy assembly

18

Front Shocks: short shocks and springs Rear Shocks: long shocks and springs

Hardest Full CW

Softest

Full CCW

Damping adjustment

Pull the shock shaft all the way out, turn slightly to lock it in the shock body.

Adjust the shock damping by rotating shock shaft CW or CCW to one of the four positions. Each position can be felt by a slight “click.”

IMPORTANT!

Each pair of front and rear

shocks must have the same damping set

-

ting.

Shock length adjustment

Check the length of the shocks in the extended, fully locked position.

Front shocks: 67.5mm Rear shocks: 76.5mm

Adjust shock length with the balljoint.

IMPORTANT!

Each pair of front and

rear shocks must be the same length.

Line up notch

Step 4.7

Step 4.8

1

2

3

2 Holes

3 Holes4 Holes

5 Holes

1

Press in pivotball from side opposite notch in top shock mount.

19

E11

3x8mm

5.0 Bodymount Assembly

E12

3x10mm

Step 5.1

Bag 14, 29, E11

E10

3x6mm

Step 5.2

1

2

3

1

2

Upper shock default mounting position

Lower shock default mounting position

E29

3x18mm

H12

3x10mm

H12

E11

E12

E29

E12

E29

H12

E10

Bag E10

20

Step 5.3

Step 5.4

1

2

1

2

E10

3x6mm

E11

3x8mm

G12

3x10mm

Upper shock default mounting position

Bag E11

Bag E10

G12

E11

E10

21

E10

3x6mm

E13

3x12mm

6.0 Radio Plate Assembly

Step 6.1

Bag 10, 14,

30,E10, E11

Step 6.2

E11

3x8mm

E11

M3x8mm

Step 6.3

Bag E11

1

2

3

5

4

1

2

4

3

1

2

Steering Servo

Output gear of steering servo must be towards the FRONT of car.

Throttle Servo

Output gear of throttle servo must be towards the FRONT of car.

The number on the servo arm corresponds to the number of teeth. 23 - Sanwa / KO / JR 24 - Hitec 25 - Futaba

Securely attach receiver to mounting plate. Route antenna wire up through antenna mounting hole, and through antenna tube.

E13

3x12mm

E13

E10

E11

E13

E11

22

E11

3x8mm

B12

3.5x9.5mm

Step 6.4

Step 6.5

E10

3x6mm

E11

3x8mm

R4

4mm

Step 6.6

2

3

5

4

1

4

3

2

1

6

5

For clockwise circuits with mostly right hand corners the fuel tank lid nipple should be placed on the right side of the lid and the grubscrew on the opposite side. The opposite is true for anti clock

-

wise tracks with mostly left hand corners.

Important!

Check that the fuel line and pressure line are free from debris and not blocked

Remove screws, but leave spacers in place atop front bulkheads.

1

Correct orientation of finished servo saver

Front

Rear

Bag 31, E11

Bag 03,

B12

Bag 04, 32, U, E10, E11

E11

H9

3x4mm

B12

U3

E10

E11

U3

5x8mm

R4

Note: The fuel tank is equipped with a mounting point where shims can be mounted in the tank to make the vol

-

ume exactly 75cc.

For important races always have the volume of your fuel tank checked.

23

E11

3x8mm

U3

5x8mm

Step 6.7

P1

2x10mm

Step 6.9

Step 6.8

4

5

6

1

3

2

44.5mm

1:1

72mm

1:1

1

Position the metal pin at the desired body mount

ing height and then press the plastic collar down until it clips into place.

Correct orientation of mounted servo saver

Left and right track rods are the same length

E11

U3

P1

Bag E11

Steering rod length

24

E13

3x12mm

7.0 Gearbox Assembly

Step 7.1

Bag 33

H8

3x3mm

1

4

3

2

Note:

A good starting point is to have the screw head flush with the bottom edge of the hole. Make sure both screws are set equally.

E13

H8

Screw IN both adjusting screws to shift LATER.

Screw OUT both adjusting screws to shift EARLIER.

25

G10

3x6mm

Step 7.2

G10

3x6mm

U6

6x13mm

V5

6x10mm

Step 7.3

1

2

1

2

3

Bag 34

Bag U

G10

V5

U6

60T

56T

G10

26

8.0 Centax Assembly

Step 8.1

Bag 35

Step 8.2

0.5mm

27

F14

3x16mm

Step 8.3

Step 8.4

Step 8.5

5.2mm

5mm

B

A

F14

Larger inner dia.

Smaller inner dia.

1mm

Bag 36

22T

17T

1

2

28

M11

5x8x0.1mm 5x8x0.3mm

Step 8.6

Step 8.7

Bag U

Adjusting the clutch gap

Install only the clutchbell and the thrustbearing assembly on the engine crankshaft.

Push the clutchbell onto the clutch shoe, and then measure the distance A as indicated.

Pull the clutchbell away from the clutch shoe, and then measure the distance B as indicated.

The clutch gap is A – B; the correct gap is 0.7mm. If the clutch gap is greater than 0.7mm, you can easily calculate the thickness of shims required to set the correct gap: Thickness of shims required (in mm) = A – B – 0.7

For example, using the values A=1.3mm, B=0.3mm Shim thickness = 1.3 – 0.3 – 0.7 = 0.3mm

Place shims between the outer thrustbearing plate and the rim of the thrustbearing carrier as shown.

A

B

Shims

Thrustbearing

Thrustbearing carrier

Pull

Push

Add small shims to allow only

small amount of endplay.

U4

5x10mm

M11

U4

29

E11

3x8mm

H11

3x8mm

9.0 Final Assembly

Step 9.1

Bag 14, 37, E11

Step 9.2

G11

3x8mm

EF19

4x10mm

Step 9.3

1

2

3

4

6

2

1

Adjusting the 2-speed shoe gap

Loosen the gap-setting setscrews (H8 in step 7.1) to allow the shoes to rest on the drive adaptor.

Install the 2-speed shoes in the 2nd gear carrier, but do NOT install the 1st gear.

There should be equal but minimum spacing between the 2-speed shoes and the 2nd gear carrier. Tighten BOTH gap-setting setscrews until the shoes touch the inside surface of the aluminum 2nd gear carrier, then loosen BOTH screws by 1/2 turn each. The 2nd gear carrier should spin freely.

Install the 1st gear.

OW

F13

3x12mm

G11

E11

P13

R5

EF19

F13

R5

5mm

P13

3x14mm

5

H11

30

E11

3x8mm

E28

3x14mm

E18

4x8mm

H17

4x6mm

Step 9.4

Step 9.5

Step 9.6

1

2

1

4

2

3

2

3

4

1

Orientation of belt tensioner bearings

Looser

Tighter

Side Belt Tension Adjustment

Assemble pipe to the correct length.

Secure exhaust header to engine using appropriate springs (not included).

Bag 14, 38

E11, U

U3

5x8mm

V3

5x8mm

Bag 39

E28

E11

V3

U3

H17

E18

31

C5

2.5x8mm

E10

3x6mm

Step 9.7

G19

4x10mm

Step 9.8

Step 9.9

1

2

3

1

Securely attach a AAA 5-cell receiver battery pack to the battery tray.

Note: Serpent offers the pre-built 5-Cell battery set (#801173) for the Serpent 710. For more information, see the appropriate product page on myTSN.com

Front tires (narrow)

Rear tires (wide)

The number on the servo arm corresponds to the number of teeth. 23 - Sanwa / KO / JR 24 - Hitec 25 - Futaba

Bag 40, 41

E10, E11

E11

3x8mm

H8

3x3mm

G19

Carb Linkage Cut one of the long pieces to 5cm

Brake Linkage

1

Note position of carb linkage

2

3

4

5

6

5

M6

4x8mm

M6

E11

E10

C5

H8

Wheels supplied with this kit may vary from those shown in the image.

Fuel line length - 10cm Pressure line length - 13cm

P.O. Box 180, 2100 AD Heemstede

The Netherlands, Europe.

Tel:

(31) 23 529 2068

Fax:

(31) 23 528 4950

E-mail:

[email protected]

Serpent USA, Inc.

West Park Center,

2830 NW 79th Avenue,

Miami, Florida 33122, USA.

Tel:

(305) 639 9665

Fax:

(305) 639 9658

E-mail: [email protected]

www.myTSN.com/Serpent710

#802110 - Version 1