Tekno RC ET410.2 Building Instructions Download

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TKRBB040725

– Ball Bearings (4x7x2.5mm,

sold in pack of 4pcs) Bearings for the

bellcrank/ackerman plate. 8pcs required in kit.

TKRBB05114

– Ball Bearings (5x11x4, 4pcs)

Diff pinion support bearings for the front/rear

transmission housings. 4pcs required in kit.

TKRBB10154

– Ball Bearings (10x15x4mm,

sold in pack of 4pcs) Bearings for all three diffs.

Also inner front steering blocks/rear hub carriers.

10pcs required in kit.

TKRBB06124

– Ball Bearings (6x12x4mm, 4pcs)

Bearings for outside of steering blocks and outer

rear hub carriers. 4pcs required in kit.

Changes to wheelbase can affect the overall handling of your vehicle, since it adjusts the distribution

of weight on the wheels as well as the angle of the driveshafts. Shortening the wheelbase at the

rear will give you more steering into a turn and off power, less steering out of a turn and on power.

Lengthening the wheelbase at the rear will yield the opposite results.

Shortening the wheelbase in the front will land jumps a little better and lengthening it will be better

through small bumps. In general a longer wheelbase is better on open and/or bumpy tracks and a

shorter wheelbase is better on tighter technical tracks.

This chart shows the recommended starting ratios for the

common motor types. Please consult the motor/esc

manufacturers recommended settings to ensure you

start with the best final drive ratio (FDR) for your equip-

ment. When setting your mesh you want have it set as

tight as possible, without any binding. Tekno RC is not

responsible for damage done to your electronic equip-

ment or gears due to improper gearing or mesh.

* For bearing maintenance, please refer to page 28.

Softer springs will increase

traction through the turns by

allowing more roll, slow down the

responsiveness of the vehicle,

and can be better in the bumps.

Stiffer springs will increase corner

speed if traction is available and

will also tend to jump and land

better. Once you find a set of

springs you like you will typically

only change them for tracks with

dramatically different conditions.

Sway bars are used to adjust a

vehicle's lateral grip by resisting

chassis roll. A thicker bar decreases

roll more than a thinner bar will. More

roll means more grip and less roll

means less grip. The front sway bar

affects mainly off-power steering at

corner entry. The rear sway bar

affects mainly on-power steering and

stability in mid-corner and at corner

exit.

Pistons with

smaller holes

work well for

smoother tracks

with large jumps

and pistons with

larger holes work well for rougher tracks with

less jumps. Smaller hole pistons will typically

use thinner oil than larger hole pistons. Kit

shock oil is suited for ~75°F (~24°C). If ambient

temperature changes more than ~10°F (~5°C),

adjust oil to suit.

Front Arm

Rear Arm

Wheelbase Adjustments

FORWARD

BACKWARD

FORWARD

BACKWARD

Front:

Changing front diff oil affects overall steering response. Thinner can increase off-power steering but

the vehicle may be twitchy and harder to drive. Thicker can increase on power steering and stability. We

recommend 30k in the front diff.

Center:

Changing center diff oil affects the front-to-rear drive balance. Thicker will reduce off-power

steering and on-power rear traction but increases on-power steering and acceleration if traction is available.

Thinner will increase off-power steering and on-power rear traction but reduce on-power steering and

acceleration. We recommend 30k in the center diff.

Rear:

Thinner rear diff oil increases off-power steering and reduces traction into a corner. It also reduces

on-power steering and increases traction out of a corner. Going too thin will make your vehicle inconsistent,

however. Thicker rear oil will have opposite effects, and once again, going too thick will make the vehicle

inconsistent. We recommend 15k in the rear diff.

Differentials

Springs

Pistons

Sway Bars

Bearing Chart

Gearing Recommendations

TKR6610 Rear 1.5mm

TKR6610 Rear 1.6mm

TKR6610 Rear 1.7mm

TKR6610 Rear 1.8mm

TKR6610 Rear 1.9mm

TKR6624 Front 1.5mm

TKR6624 Front 1.6mm

TKR6624 Front 1.7mm

TKR6624 Front 1.8mm

TKR6624 Front 1.9mm
TKR6611 Rear 1.0mm

TKR6611 Rear 1.1mm

TKR6611 Rear 1.2mm

TKR6611 Rear 1.3mm

TKR6611 Rear 1.4mm

Part

F / R

Size

TKR6625 Front 1.0mm

TKR6625 Front 1.1mm

TKR6625 Front 1.2mm

TKR6625 Front 1.3mm

TKR6625 Front 1.4mm

PART

/COLOR

F / R

Rear

Front

Rear

1.3

9.37

8.87

63mm

3.01

3.22

Front

TKR7246

TKR7247

TKR7243

TKR7244

TKR7245

TKR7042

TKR7043

TKR7044

TKR7045

TKR7041

WIRE DIA.

1.3

1.4

COILS

11.25

10.50

9.87

7.63

7.38

7.13

7.00

7.88

LENGTH

63mm

50mm

LENGTH

COILS

WIRE DIA.

2.40

2.61

2.82

5.25

5.48

5.75

5.90

5.03

RATE

Vehicle

(2 cell)

(50-80 ft Straight)

Small Track

(pinion)

Large Track

(pinion)

(80-150 ft Straight)

ET410

Motor

540 2-Pole or

540 4-Pole

6.5T
7.5T
8.5T

14 tooth
15 tooth
16 tooth

15 tooth
16 tooth
17 tooth

4600kv

15-16 tooth

17-18 tooth

4000kv

18-19 tooth

19-20 tooth

Setup Information

(continued)

Summary of Contents for ET410.2

Page 1: ......

Page 2: ...is an indoor facility Use caution while operating vehicle so as not to collide with people who may be turn marshalling or who might otherwise not be aware that a fast moving RC vehicle is in the vicinity Warranty We warrant that the parts included in this kit are free from defects If you find a defective part in your kit please contact us info teknorc com and we will help you to resolve the issue ...

Page 3: ...1 TKR6550 TKR6513X Diff Oil TKR7253 TKR6514HD TKR6514HD TKR6514HD TKR6514 Option TKR6514 Option TKR6514 Option TKR6514HD TKR6517 TKR6550 TKR5144 TKR1303 x4 3 Grease Grease Grease Grease Fill with 30 000 CST oil to 1mm below full DO NOT OVER FILL Note Apply grease to the groove in the outdrive Note These screws only need to be snug Do not over tighten or the internal gears will bind up Note Apply g...

Page 4: ...ential Shims 5x14mm x4 TKR1303 M2 5x10mm Flat Head Screw x8 Grease TKR6513X Repeat for rear diff Fill FRONT with 30 000 CST oil Fill REAR with 15 000 CST oil to 1mm below full DO NOT OVER FILL Repeat for rear diff TKR6517 TKR5144 TKR6511 Grease Grease TKR6550 TKR6514HD TKR7221 TKR6514HD TKR6514HD Note Apply grease to the groove in the outdrive Note Apply grease to the groove where the o ring is pl...

Page 5: ... 4 TKRBB040725 TKRBB040725 Note Use a 2mm hex to pre thread the steering posts into the bulkhead This will ensure that the posts go in as straight as possible After pre threading remove the posts and re install them with the entire steering assembly as shown TKR1301 TKRBB10154 TKRBB10154 TKR6547 Step C 5 Step C 6 Grease TKR6519B TKR1402 Note Screw the TKR1402 s all the way down then back off 1 4 t...

Page 6: ...10mm Button Head Screw x2 TKR1602 M4x4mm Set Screw x1 TKRBB10154 Ball Bearing 10x15x4 x2 Bag D Rear Bulkhead Assembly Thread Lock TKRBB05114 TKR1602 TKRBB05114 TKR7222 TKR6590 TKR1403 TKR6519B TKR6597HD TKR6597 Option TKR6519B TKRBB10154 TKR1402 TKR6547 TKRBB10154 TKR1301 Grease TKR1402 Note Screw the TKR1402 s all the way down then back off 1 4 turn 6 ...

Page 7: ...ption Thread Lock TKR1611 TKR1601 TKR6555 TKR6218 TKR6253B TKR6544B TKR7024 TKR1409 TKR6544B x5 TKR1601 M3x4mm Set Screw Step E 1 Step E 2 Step E 3 TKR1405 M3x14mm Button Head Screw x2 TKR1463 M2 5x6mm Button Head Screw x2 TKR1611 M4x8mm Set Screw x2 TKR1463 TKR1463 TKR1409 M3x20mm Button Head Screw x2 TKR6218 M3x8mm Long Neck Ball Stud x2 7 Stock Position C Block Note With center dot inserts Anti...

Page 8: ...need to be snug Do not over tighten TKR1229 6x10x0 2mm Shim x2 TKR1609 M3x3mm Set Screw x2 Step F 1 Step F 2 TKRBB06124 Ball Bearing 6x12x4 x2 Grease TKR1400 M3x4mm Button Head Screw x2 Thread Lock TKR1400 TKR6576 Note These screws only need to be snug Do not over tighten TKR1211 M3 Lock Nut Flange Black x2 TKR1221 M3x8mm Washer x2 Bag F Rear Hub CVA Assembly 8 L O W H I G H ROLLCENTER HUB INSERTS...

Page 9: ...eeded Right TKR6253B TKR7250 Left TKR6253B 44 50mm Build Note Hold the turnbuckle stationary with pliers and push the rod end hard onto the turnbuckle while turning at the same time Keep in mind that one end of the turnbuckle has normal threads and the other has reverse threads Start the rod end straight and it will thread on straight Build Tip Use some grease or Chapstick on the threads to help p...

Page 10: ...TKR6538 TKR1411 TKR1405 Step F 6 Step F 7 TKR1411 M3x25mm Button Head Screw x2 TKR1405 M3x14mm Button Head Screw x4 TKR6546B TKR1405 Bag F Rear Tower Wing Mount Stock positions shown 10 A C B D ...

Page 11: ...6253B TKR6544B TKR1463 TKR1601 TKR6625 1 4mm TKR6547 Note Do not over tighten Below options sold separately TKR6625 1 0 1 4mm TKR6624 1 5 1 9mm Option Note Refer to page 26 for setting droop x5 TKR1601 M3x4mm Set Screw Note Screw these set screws in gently until they just touch the sway bar then back off just slightly so the sway bar is free Thread Lock 11 Wheelbase Shims 2mm 0mm large1mm front re...

Page 12: ...ring 6x12x4 x2 TKR1400 M3x4mm Button Head Screw x4 TKR1403 M3x10mm Button Head Screw x4 TKR1400 TKR1229 6x10x0 2mm Shim x2 TKR1221 M3x8mm Washer x8 Thread Lock TKRBB10154 Ball Bearing 10x15x4 x2 TKR1201 M3 Lock Nut Black x2 Note These optional steering stop screws can help with erratic steering They provide a mechanical limit to the steering throw and can make the car easier to drive They are reco...

Page 13: ...53B TKR6253B 33 50mm Note Notch always goes on left side of vehicle Build Note Hold the turnbuckle stationary with pliers and push the rod end hard onto the turnbuckle while turning at the same time Keep in mind that one end of the turnbuckle has normal threads and the other has reverse threads Start the rod end straight and it will thread on straight Build Tip Use some grease or Chapstick on the ...

Page 14: ... Bag I Front Camber Plate Tower Step I 4 Step I 5 TKR1211 TKR1405 x 4pcs TKR6527B TKR6527B TKR7210 TKR7281B TKR1211 TKR1405 x 4pcs TKR1403 TKR1403 M3x10mm Button Head Screw x2 Note Always press on with T logo visible TKR1405 M3x14mm Button Head Screw x8 14 0 ...

Page 15: ... of the chassis This feature helps secure the front clip and improves durability CHASSIS CHASSIS A BLOCK A BLOCK TKR1323 TKR6501B TKR6586 TKR1323 TKR1322 TKR1401 TKR6546 TKR1323 TKR6530 TKR6634 TKR6634A Option TKR1322 TKR6538 Step J 1 Step J 2 Step J 3 TKR1322 M3x8mm Flat Head Screw x3 TKR1401 M3x6mm Button Head Screw x2 TKR1323 M3x10mm Flat Head Screw x9 Thread Lock Thread Lock Bag J Front Center...

Page 16: ...154 TKRBB10154 TKR1211 M3 Lock Nut Flange Black x1 TKR1409 M3x20mm Button Head Screw x1 TKR1323 M3x10mm Flat Head Screw x8 TKR1402 M3x8mm Button Head Screw x4 TKR6599 TKR6538 Note Use both rear braces for the least chassis flex Use just the long rear for less flex and short rear for the most flex More flex is best suited for bumpy tracks TKR6635C Option TKRBB10154 Ball Bearing 10x15x4 x2 Bag J Cen...

Page 17: ... distance measures 27mm at full extension TKR1604 TKR6701 TKR6712 TKR6780 TKR6712A Option 450 Refer to filling instructions and oil recommendation on page 19 during this step Step K 1 Step K 2 Step K 3 Step K 4 Step K 5 TKR1240 M3x18mm Shock Mnt Screw x2 TKR1248 M2x4mm Emulsion Screw x2 TKR1245 M2x5mm Piston Screw x2 TKR1211 M3 Lock Nut Flange Black x2 TKR1604 M3x8mm Set Screw x2 27 00mm TKR6719A ...

Page 18: ...ck screw is RH threaded It goes on the left side of the car Silver screw is LH threaded It goes on the right side of the car TKR6757 TKR6757T Option Thread Lock Note Use green slime or oil on shock shaft threads AND O rings to prevent tearing and leaking Note 1 2mm piston with writing up Note Do not over tighten TKR7247 TKR7243 TKR7244 TKR7245 TKR7246 Option TKR6780 TKR6705E TKR6735 TKR6739 TKR674...

Page 19: ...xtended remove the emulsion screw from the cap to do the final bleed Step 7 With the shock at about a 45 angle push and hold the shock shaft to the top and insert the prepared emulsion screw seal again Oil will leak out during this process Finish by tightening the screw until snug do not over tighten We ve found it s easiest to complete steps 1 2 on each shock before moving on to step 3 By the tim...

Page 20: ...ting up your Steering EPA Servo Speed Dual Rate and Exponential Curves PLEASE READ PAGE 27 FOR MORE DETAILS Steering servo not included TKR6586 TKR1403 Note We recommend using a full size servo with at least 200 oz in torque and metal gears Running less than our recommended rating will increase the chance of premature servo failure TKR1221 TKR1409 M3x20mm Button Head Screw x2 Vehicle 2 cell 50 80 ...

Page 21: ...otor Note MESH SHOULD BE AS TIGHT AS POSSIBLE WITHOUT BINDING Pinion Set screw not included Thread Lock Thread Lock TKR1321 M3x6mm Flat Head Screw x2 TKR1221 M3X8mm Washer x2 TKR1523 M3x10mm Cap Head Screw x2 TKR1321 TKR6586 Fan not included 25mm and 30mm fans compatible Screws not included Mount ESC receiver transponder during this step not included Step M 5 Thread Lock Bag M Final Assembly 21 ...

Page 22: ... the chassis Step M 7 Step M 8 Step M 9 Step M 10 TKR5238 M3x30 Threaded Rod x1 TKR6253B TKR1601 TKR5126 TKR6253B TKR5238 TKR6207 M3x6mm Ball Stud x1 TKR1601 M3x4mm Set Screw x1 Cap Head Screw not included SERVO HORN ALIGNMENT Actual Size Note Always press on with T logo visible Note Servo horn orientation Note Rod End orientation TKR6207 TKR6526B TKR6563A Option Note Only this angled link can be ...

Page 23: ...21 M3x6mm Flat Head Screw x1 TKR5230 M3x18 Threaded Rod x1 TKR1403 M3x10mm Button Head Screw x6 TKR1402 M3x8mm Button Head Screw x2 WING OPTIONS 5mm 10mm 8mm Note Taller riser will provide more downforce and give more rear traction everywhere will jump more nose up have less steering into a turn and have slightly less top speed Shorter riser will provide less downforce will have less rear traction...

Page 24: ...dy BATTERY INSTALLATION TKR6280 TKR5125 TKR6686 Thumb Screw Assembly Wheels Tires not included TKR6686 TKR6686 TKR1212 TKR6586 TKR1235 TKR1235 TKR1235 TKR1212 TKR7201 Step O 2 Step O 3 Step O 4 TKR1235 Body Clip x4 TKR6503C Option TKR1212 M4 Lock Nut Flange x2 TKR1235 Bag O Body Tires 24 ...

Page 25: ...zero bumpsteer or slight bump out Bump in should never be used Think of Ackermann as active toe when the steering moves from left to right More Ackermann effect makes more toe out at full turn and produces more steering off power Less Ackermann effect makes less toe out at full turn and produces more steering on power A good starting point is 4 washers behind the ball stud 2mm and the D spindle ar...

Page 26: ... at corner exit Pistons with smaller holes work well for smoother tracks with large jumps and pistons with larger holes work well for rougher tracks with less jumps Smaller hole pistons will typically use thinner oil than larger hole pistons Kit shock oil is suited for 75 F 24 C If ambient temperature changes more than 10 F 5 C adjust oil to suit Front Arm Rear Arm Wheelbase Adjustments FORWARD BA...

Page 27: ...ch full lock on the steering wheel We would suggest starting at 15 If you re vehicle still feels twitchy around center dial in more negative expo to continue smoothing everything out If it starts to feel too numb around center dial some back out Another valuable and often overlooked radio adjustment is Servo Speed Servo Speed allows you to slow the steering servo down from the transmitter resultin...

Page 28: ...y are filled and operating as designed 1 Remove each diff and verify the differential action is happening and is smooth If there is any notchy feel to them follow the steps below to rebuild them 2 Open the diff and pour out the oil Remove the gears and pins to release the outdrives then remove the seals Inspect everything to make sure there are no damaged parts If the seals are old or show any sig...

Page 29: ...10x15x4 4pcs Shocks List TKR6701 Locking Shock Rod End and Spring Perch Set 13mm shocks TKR6704 Shock Shafts EB410 front ET410 rear steel 2pcs TKR6705E Shock Piston Set 5x1 1 5x1 2 flat flat 13mm 4pcs TKR6708 Shock Cartridge Guide Set CNC Delrin 8pcs EB410 ET410 TKR6709 Shock X rings 8pcs EB410 TKR6711 Shock Body EB410 front ET410 rear aluminum hard ano 2pcs TKR6712 Shock Cartridge Cap Bushing Set...

Page 30: ...IDE HEIGHT CAMBER ANTI SQUAT TOE SWAY BAR DROOP OIL BRAND PISTON SPRING REBOUND BUILD Anti Squat 2 with center dot inserts Arm Sweep 0 with center dot inserts Kick Up 10 with center dot inserts Rear Toe 2 with center dot inserts A Block B Block D Block C Block ASTRO Roll Center L O W E R H I G H E R 1 2 3 A C 5mm 10mm B D F R O N T R E A R Shims Thick 1mm Thin 5mm F R O N T R E A R SPACERS ARM WAS...

Page 31: ... INSERT WHEEL NOTES BODY MAKE WING MAKE REAR LONG OIL BRAND PISTON SPRING REBOUND BUILD RIDE HEIGHT CAMBER ANTI SQUAT TOE SWAY BAR DROOP OIL BRAND PISTON SPRING REBOUND BUILD Anti Squat 2 with center dot inserts Arm Sweep 0 with center dot inserts Kick Up 10 with center dot inserts Rear Toe 2 with center dot inserts A Block B Block D Block C Block ASTRO Roll Center L O W E R H I G H E R 1 2 3 A C ...

Page 32: ...Tekno RC 10755 Scripps Poway Pkwy 598 San Diego CA 92131 USA ...

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