OFNA Racing DM-1 RTR User Manual

RTR

INSTRUCTION MANUAL

Features:

*High impact large front bumper and foam bumper.
*CNC machined steel transmission bevel gears.
*High Impact plastic front shock mount.
*High Impact plastic rear shock mount with heat sink.
*Low C. G. lay-down steering servo and throttle servo mount.
*Front and rear push rod suspension design.
*Threaded lay-down 13mm big bore shocks for front and rear.
*Adjustable ackerman steering geometry design.
*Aluminum front plate.
*Aluminum low centre of gravity radio tray.
*Front pivot ball suspension with dust boot covers.
*Rear pivot ball uprights for quick geometry changes.
*Spring steel universal joints for front and rear.
*Adjustable blade type sway bar for front and rear.
*Adjustable down-stop and up-stop suspension design.
*High Impact plastic chassis brace.

*Quick release centre differential mount design.
*Convenient carry handle In the centre of the car.
*Changeable roll centre design for front and rear suspension.
*Machined steel discs brake.
*Shoe type 2 speed transmission.
*CNC machined clutch bell with screw-on changeable gears.
*CNC machined 6065 aluminium, milled out slim line chassis.
*Secure transponder mount.
*High flow air filter for maximum engine protection.
*Side body mounts and body protector.
*Rear air flow diffuser creates more down force.
*Exhaust deflector design to protect the inside of the body.
*Chrome exhaust pipe detail parts.
*High grip radial tires on 17mm hex wheels.
*Choice of different body designs.

ADDITIONAL PARTS NEEDED

* Batteries 8 AA for Radio
* Receiver Batteries (10202 Hump Pack)
* Model Fuel 20% Nitro
* CA Glue
* Hobby Knife

THIS IS NOT A TOY !

This kit is extremely fast, and can easily
go over 40mph and can seriously injured
someone. If you are under 18years of age
have and adult supervision.

DEC 3 2007

MUST READ THIS BEFORE RUNNING

Running a nitro kit is fun and easy, but to make this a safe • Clean oil and dirt from chassis with a degreaser.
and good experience you must observe a few rules. This
kit is extremely fast, easily over 40MPH, and can seriously
injure someone if you are not careful.

Precautions

• This kit is not a toy. Always run car with a second
person as a spotter and pitman.

Where to run car?

• Any running area you choose must be dry. Do not run
car near any water or wet dirt.

• Do not run on public streets. It is very easy to have the
car run over or damaged by hitting the curb.

• Do not operate car in tight confined places. The car is
very fast and will easily hit something.

• Do not run near people or animals.
and will too easily hit someone.

• Due noise, you will want to consider the surrounding
area when operating the car.

• Do not operate the car at night. You will not be able to
drive it without hitting something.

• Do not operate the car indoors. Engine exhaust is not
healthy.

Glow Fuel

• Glow fuel is poisonous!

• Glow fuel is flammable! label for additional precautions.

• Do not leave in fuel bottle with lid off at any time.

• Do not use any fuel other than glow fuel in this engine. • Car Fuel tank - Never store fuel in car tank, it will ruin the

First Time Starting the Engine

Caution! When starting engine make sure the following is
observed.

• Set engine Master needle to 3 turns (rich setting) • DAMAGE DUE TO CAR RUN AWAY IS NOT A

• Do not do this alone, get an experienced friend to help at
first.

• Fill fuel tank, try not to spill fuel. Do not spill fuel on
receiver

• Hold car off the ground, so it will not runaway when first
starts

• Turn on Radio and check the linkage before starting
engine.

• Turn on car receiver battery switch.

• Always have an air filter on the carburetor to keep dirt
out.

The car is very fast

• Hot Parts - The pipe, manifold, engine and head are very
hot and will cause burns.

• Rotating Parts - Keep hands away from the drive train,
wheels, and engine when engine is running.

• Radio - Check batteries life before running the car. If
radio does not have full control of the car with steering
and/or throttle/brake do not run until corrected. Failure to
correct this will result in possible injury and damage to the
car or property.

• Glow fuel - Do not leave the glow fuel unattended with the
Lid off. Fuel contains Methanol and Nitro Methane and is
flammable and poisonous.

Store fuel in cool ventilated location. Refer the glow fuel

engine if left in tank.

• Always turn off the car BEFORE turning off radio.

WARRANTY ISSUE.

IF YOU DO NOT BREAK-IN ENGINE
CORRECTLY, MAINLY AT LOW RPM,
YOU WILL BREAK THE CONNECTING
ROD!

FAILURE TO NOT READ AND

Engine Break-in

• See Engine Page.

Emergency Stopping Engine When Running

• Remove air filter and cover carb. intake.

• Squeeze fuel line and hold until engine stops.

• With a rag, cover exhaust outlet.

Storing Car After Running

• Remove fuel from tank and fuel lines

• Turn off radio in car

• Put a few drops of after run in engine to keep it from
rusting.

FOLLOW BREAK-IN ENGINE
INSTRUCTIONS WILL VOID
WARRANTY!

THINGS NEED BESIDES THE KIT

3.5 cc (21 Class) ENGINE
REAR EXHAUST

OFNA/Picco
P-9R EVO

#51219

REQUIRED FOR OPERATION

Glow Fuel

20%

Bottle’s with spout
# 10160 - large 500cc
# 10161 - large 500 ccAuto Stop
# 10162 - small 250cc
# 10164 - CNC spout 500CC
# 10167 - CNC spout 800CC

Glow Plug Long Heat with Battery & Charger

# 10215....$27.95

(please note OFNA Glow Heats available)

Note: Pro kit does not include engine!

RADIO CONTROL UNIT

Note: Carefully read the instruction manual of your
2 channel radio controller before using.

SUITABLE SERVO SIZE

m

m

1

mm-4

36

15mm - 21mm

29mm - 42mm

Off-Road Starter Box, 12V motor
# 10250 - 1/8 scale Starter Box
# 10253 - 1/8 scale Starter Box w/ Panel
Off-Road Starter Box, two 550 motors
# 10248 - 1/8 scale Starter Box
# 10249 - 1/8 scale Starter Box,RTR
Optional Parts
# 92571 - Power Panel Glow Heater
# 92572 - Cable for Glow Plug

Radio must be set at neutral position
before installing in the kit.

SEQUENCE TO SET NEUTRAL

Install AA batteries in Radio.

Extend the antenna.(Transmitter)

Install batteries into Car receiver .

After installing the battery, connect the
battery box.

Extend the antenna. (Receiver)

Set the trim-lever at center.

Turn on the switch. (Transmitter)

Turn on the switch. (Receiver)

Make sure the servos are in command.

When the operation stick is in neutral,
servo horns must be in neutral as will.
*Adjustment can be made by re­ installing the servo horn.

Turn off the switch. (Receiver)

111111

Turn off the switch. (Transmitter)

12

Retract the antenna. (Transmitter)

13

12V Battery for Starter Box
(must have)

AA Batteries ( 12 pcs ) for radio

More Optional Parts . . .

#10202 NiHm Battery Hump

Pack .. $34.95

# 10214 NiHm Battery Pack
Charger.. $7.95

# 51007 OFNA/Picoo Glow
Plug .. $4.95

TOOLS NOT INCLUDED IN KIT

Phillips Type Screw Drivers ( L )

Phillips Type Screw Drivers ( S )

Needle Nose Pliers

Knife

Cutter

Curved Scissors

Precision Caliper

Brush

Cross Wrench

Instant Cemment

Masking Tape

Paints

INCLUDED WITH KIT

1.5mm Allen Wrench

2mm Allen Wrench

2.5mm Allen Wrench

4mm'5mm Allen Wrench

PLASTIC PARTS FOR USE

40533
FRONT AND REAR GEAR BOX

40717
FRONT AND REAR LOWER ARM

첿メ짾햡띠쉐

40716
FRONT UPPER ARM

40538
DIFF. CASE

40718
FRONT KNUCKLE ARM

쾧ガ쭌쪿츁 L.R띠쉐

40537
REAR UPPER ARM

40721
FRONT BUMPER

31304
REAR UPRIGHT

40643
SHOCK PLASTIC

Parts for
Not Use

30802
Throttle Linkage Plastic

40676
BODY POST & SERVO MOUNT

Parts for
Not Use

Parts for
Not Use

40040
CENTER DIFF. MOUNT PLASTIC PARTS

Parts for
Not Use

PLASTIC PARTS FOR USE

40541
RECEIVER BOX

Parts for
Not Use

40735
EXHAUST PIPE DETAIL PARTS
AND BACK MIRROR

40539
SERVO SAVER

Parts for
Not Use

40719
ARM HOLDER

40722
EXHAUST GAS DEFLECTOR

40720
SIDE IMPACT BUMPER AND BODY POST

SYMBOL USED THROUGHOUT THE INSTRUCTION MANUAL

Degrease With
Motor Spray

Apply OilApply Screw

BAG

Screw
Cem

nte

Parts Bag Used

Cement

Oil

Do Not
Over Tighten

Apply
Grease

40734
REAR WING AND WING MOUNT

Do Not
Over Tighten

Tighten

Apply Grease

1:1

Tighten

True-To-Scale

Ensure
Free
Movement

Rotate
Direction

Ensure Free
Movement

Clockwise
Rotation

Contact
Adhesive

Rotate
Direction

Contact Adhesive

Anti-clockwise
Rotation

1

ASSEMBLY OF THE FRONT AND REAR SHOCKS

Make 4 shocks for Front and Rear.

40090

3.5mm O-Ring

40090 1mm Washer

40090
2mm Washer

40090
7mm R-Ring

2

ASSEMBLY OF THE SHOCK SHAFT

40060

2.5mmNylon Nut

30403
6mm Ball

2.6x5mm
Washer

*Be careful not to damage shock
shaft.

.....x8

.....x4

.....x4

.....x4

.....x4

.....x4

.....x8

Step 1

40640
Pressure Top
(Orange)

40633
Shock Cap

30403
6mm
Ball

40635
Shock Shaft
Dust Covers

40643
Shock Plastic
Ball End
(Short)

40637
Dust Felt

Step 2 Step 3

Oil

40737
Shock Body

40638
Shock Piston

40736
Shock Shaft

40090
7mm R-ring

40090
2mm Washer

40090

3.5mm O Ring

40090
1mm Washer

40090

3.5mm O Ring

2.6x5mm
Washer

40060

2.5mm
Nylon Nut

40634
Spring Adjuster

1. Pull down piston and pour oil
into shock cylinder to approx 90%.

2.To remove air bubbles by slowly
moving piston up and down.

Do Not
Over Thigten

Do not overtighten the 2.5 mm
nylon nut.

Fit the o-ringinto groove
before assembly.

40636
15x1mm
O-Ring

Rotate
Direction

Oil

Fill the shocks
with oil.

Move slowly.

UP

Down

3

ASSEMBLY OF THE SHOCK CAP AND SPRING

Step 1

1. Pull down piston, attach pressure
top and shock oil overflow with
tissue paper.

Tighten

* Makes total length for 84mm.

84mm

0 10 20 30 40 50 60 70 80 90

mm

1

Step 2

40643
Shock
Spring Holder

40738
Shock Spring(Red)

4

ASSEMBLY OF THE FRONT AND REAR DIFF.

Builds two differentials for front
and rear.

40010

2.5x13.8mm Pin

94034
4x4mm
Set Screw

40009
P6 O-Ring

36053
8x16mm Ball Bearing

5

ASSEMBLY OF THE FRONT AND REAR DIFF.

Builds two differentials for front
and rear.

.....x4

.....x2

.....x4

.....x4

Step 1 Step 2

40538
Diff. Case

40009
P6
O-Ring

40513
Diff. Gear
(Large)

Step 1 Step 2

NB. It is very important to remove
the 30776 washer if the gear
mesh is too tight.

30773
4mm
Cross Pin

36053
8X16mm
Ball Bearing

30776
4X10mm
Washer

Oil

4X4 mm
Set Screw

40514
Cap Joint

40010

2.5x13.8mm
Pin

Oil

3X12mm
Flat Head
Hex Screw

40514
Cap Joint

36053
8X16mm
Ball Bearing

Tighten

40513
Diff. Gear

40009
P6
O-Ring

40517
43T
Large
Bevel Gear

40010

2.5x13.8mm
Pin

30776
4x10mm
Washer

94020
3x12mm
Flat Head
Hex Screw

30773
4mm
Cross Pin

6

ASSEMBLY OF THE FRONT AND REAR GEAR CASE

.....x16

.....x8

.....x4

Step 1 Step 2

40533
Gear Case

40024
13x16x0.2mm
Shim

36053
8x16mm Ball Bearing

94011
4x16mm
Hex Screw

94015
4x35mm
Hex Screw

.....x8

.....x4

.....x4

.....x4

40024
13X16X0.2 mm
Shim

Apply
Grease

40024
13X16X0.2mm
Shim

’Adjust the backlash with the shims.

40513
Diff. Gear
(Small)

36053
8X16mm
Ball Bearing

40516
13T
Small Bevel Gear

Di

ff.

*Put the Diff. Oil #100000 for front
and the #50000 for Rear
*Fill the Diff. case to approx. 80%
with the Diff. Oil

5X4mm
Set Screw

40519
Cap Joint

36053
8X16mm
Ball Bearing

4X16mm
Hex Screw

4X35mm
Hex Screw

O

il

Sc

e

C

40011
Diff. Gasket

e

r w

ent

m

Tight the diff screws in this order.

1

4

Builds two gear case for front and rear.

40533
Gear Case

3

2

2

7

ASSEMBLY OF THE SERVO SAVER

Step 1 Step 2

40024
13x16x0.2mm
Shim

.....x2

40037
Steering Plate

40510
Servo Saver
Tube

40539
4x8mm
Plastic Flange
Bushing

Oil

40539
Servo Saver
Horn

40539
Servo Saver
Horn

Hex Screw

*Tighten the steering plate hex screw
all way down and then back it off 1/2
turn.

40746
Alum. Servo Saver
Connecting Plate
(Black)

Ensure
Free
Movement

40539
4x8mm
Plastic Flange
Bushing

40037
Steering Plat
Hex Screw

8

ASSEMBLY OF THE SERVO SAVER

.....x2

.....x2

40024
13X16X0.2mm
Shim

Step 1 Step 2

3mm
Nylon Nut

94003
3x10mm
Hex Screw

40531
Shock Ball
End Post

90018
3x25mm
Cap Screw

.....x5

.....x5

.....x2

.....x2

40719
Front Upper Arm
Holder (Plastic)

40719
Upper Arm
Adjuster

Rotate
Direction

40500
Servo Saver
Spring (Black)

40034
Servo Saver
Spring Tension
Adjuster

3x10mm
Hex Screw

40745
Front Plate
(Black)

3mm
Nylon Nut

Left

*Set the left and right hand side upper
arm adjuster in the same direction.

Right

40676
Center Brace
(Front)

* Notice the direction of the servo saver connecting plate.

40531
Shock Ball
End Post

40719
Front Shock
Mount

ew cr

S

n

Ceme t

3x25mm
Cap Screw

40539
Servo Saver
Horn

Screw
C nteme

9

ASSEMBLY OF THE SERVO SAVER

94026
4x12mm
Flat Head
Hex Screw

40539
6x10mm
Plastic Bushing

.....x2

.....x4

Screw

emeC nt

4x12mm
Flat Head
Hex Screw

Screw

ment

e

C

3

40511
Servo Saver
Post

40539
6x10x3mm
Plastic Bushing

40539
6x10x3mm
Plastic Bushing

10

ASSEMBLY OF THE STEERING TIE-ROD

Assembly for both left and right side.

Step 1 Step 2

40548
3mm
Nylon Nut(Thin Type)

40126
3X6mm
Flange Washer

40038
7mm Ball

36700
7mm Steering
Ball End

11

ASSEMBLY OF THE SERVO SAVER AND FRONT UPPER ARMS

.....x2

.....x2

.....x4

.....x4

40038
7mm Ball

36700
7mm Steering
Ball End

36790
4x46mm
Turnbuckle

36700
7mm Steering
Ball End

1:1

Approx. 29.30 mm

40038
7mm Ball

Step 1

4x10mm
Hex Screw

40548
3mm
Nylon Nut
(Thin Type)

Scr

ew

C

emen

40126
3X6mm

t

Flange Washer

3x15mm
Flat Head
Hex Screw

94020
3x12mm
Flat Head
Hex Screw

94026
4x12mm
Flat Head
Hex Screw

94009
4x10mm
Hex Screw

40525
3x48.1mm Arm Shaft

.....x2

.....x4

.....x2

.....X2

*Insert the upper arm adjust
into shock stay.

4x12mm
Flat Head
Hex Screw

40533
Front Plate Bad

Front

Step 2

40719
Upper Arm
Adjuster

40716
Caster Angle
Adjuster (2mm)

40716
Front Upper
Arm

40716
Caster Angle
Adjuster
(1mm and 3mm)

40525

3x48.1mm

Arm Shaft

40525

3x48.1mm

Arm Shaft

3x12mm
Flat Head
Hex Screw

40719
Shock Stay

Left

*Set the left and right hand side upper
arm adjuster in the same direction.

Right

4

12

ASSEMBLY OF THE FRONT SHOCK STAY

3x15mm
Hex Screw

40719

Do Not

36742
Shock Cap
Bushing

39242
5x8x2.5mm
Ball Bearing

94005
3x16mm
Hex Screw

13

ASSEMBLY OF THE FRONT SHOCKS ONTO SHOCK STAY

.....X2

.....X4

.....x2

Over Tighten

39242
5x8x2.5mm
Ball Bearing

36742
Bushing

Shock Mount(A)

40719
Shock Mount(B)

3x8mm
Washer

Ensure
Free
Movement

3mm
Nylon Nut

Assembly for both left and right side.

*Notice"L"make are for
inside.

Assembly for both left and right side.

94041
3mm
Nylon Nut

94040
3x8mm
Washer

40643
Shock Cap
Washer

94004
3x12mm
Hex Screw

14

ASSEMBLY OF THE REAR UPPER ARMS

.....x2

.....x2

.....x2

.....x2

Step 1 Step 2

36850
7mm
Ball

94011
4x16mm
Hex Screw

.....x2

.....x2

40719
Upper Arm
Adjuster

3x12mm
Hex Screw

40719
Rear Upper Arm
Holder (Plastic)

Do Not
Over Tighten

4x16mm
Hex Screw

40643
Shock Cap
Washer

*Take the shock cap washer
from the shock plastic tree.

Assembly for both left and right side.

40537
Rear Upper Arm

36861
5x35mm
Turnbuckle

36850
7mm
Ball

Left

*Set the left and right hand side upper
arm adjuster in the same direction.

Right

5

40065
Upper Arm
Plastic Rod End

11¡G

Approx. 12.5 mm