Failure to follow these instructions
can damage your kit, and cause
serious bodily injury or death.
Failure to follow these instructions can
cause injury to yourself or others.
You might also cause property damage
or damage your kit.
Cautions
Cautions
Attention
Cautions
Cautions
Attention
Thank you Thank you for selecting the HPI Racing product ! This kit is designed to be fun to drive and uses top quality parts
for durability and performance. The instruction manual you are reading was designed to be easy to follow yet
thorough in its explanations. HPI Racing wants you to enjoy driving your new R/C kit. If you come across any
problems or need some help getting through a step, give us a call and we will do our very best to help you. You can
also contact us on the internet at www.hpiracing.com.
This is a high performance R/C kit, and it requires regular maintenance for best performance. If you don’t do regular maintenance the
performance will suffer. HPI has all the necessary parts and accessories available to keep your car performing at its best.
The caution or attention symbols will warn you about steps that can be very dangerous.
Please read and understand the instructions carefully before proceeding.
Before Running
Please read manual with parent or guardian (responsible adult).
Before Operating
Make sure that all screws and nuts are properly tightened.
Always use fresh batteries for transmitter and receiver to avoid losing control of the model.
Make sure no one else is using the same radio frequency as you are using.
Please confirm the neutral throttle trigger position.
Please confirm the range of the radio operation. see page 7.
During Running
Please do not run on a public street, this could cause serious accidents, personal injuries and/or
property damage.
Please do not run near pedestrians or small children.
Please do not run in small or confined areas.
After Running
Turn OFF receiver first, then turn OFF transmitter. This will prevent the car from losing control.
Battery safety
Please be careful when handling the battery. It will be hot after running. If the wire is frayed, a short
circuit can cause a fire.
2
Contents
1
2 - 1
2 - 2
2 - 3
2 - 4
4
2
1
2
4
311
411
512
4
5
7
10
6 - 1
6 - 2
6 - 3
6 - 4
615
725
ࡄ࠷࿑
8
9
27
ዷ㐿࿑ 30
ࡄ࠷ࠬ࠻
10 32
ࠝࡊ࡚ࠪࡦࡄ࠷ࠬ࠻
11 33
15
18
7 - 1
7 - 2
25
26
7 - 1
7 - 2
25
26
22
23
Page
Overview
Charging Battery
2 - 1
Setup Before Starting
2 - 2
Radio Control Car Operating Procedures
2 - 3
Maintenance After Driving
2 - 4
4
Start Up Guide 4
Trouble Shooting
311
Fail-safe Function of the Speed Control
411
Replacing the Pinion Gears & Motor
512
4
5
7
10
Replacing the Front Bumper
6 - 1
Replacing the Wheel Base
6 - 2
Replacing the Wheel Hubs
6 - 3
Replacing the Body Post
Transmitter
Receiver and Sarvo
6 - 4
Replacing Each Part
615
Radio Maintenance
725
Parts Reference
8
9
27
Exploded View 30
Parts List
10 32
Option Parts List
11 33
15
18
22
23
ContentsSection
3
2-1
x8
Z150
Antenna Pipe
1
Components
Equipment Needed Tools Needed
Radio Control Car
2029
HPI Ni-Cd Battery Pack (7.2V 1500mAh)
Transmitter
Overview
Antenna
Parts Bag
8 pieces of AA Alkaline Batteries for the transmitter
Phillips-head screw driver Phillips-head screw driver
2
Charging Battery
Start Up Guide
Use included charger only for included Ni-Cd battery. Do not use any other battery. Charge time for empty battery is 6 hours. Do not charge battery
for longer than 6 hours, this will cause overheating and battery damage.
Please read the instructions before running.
Plug into a wall outlet
Make sure charger jack fully inserted.
9038 (JP)
Battery Charger
2029
HPI Ni-Cd Battery Pack (7.2V 1500mAh)
9038 (JP)
Battery Charger
Charge time 6 hours. After charging disconnect
the battery and unplug the
charger from wall.
This charger can be used only with the included battery. Do not use it with other batteries.
There is risk of damage and possible explosion, etc..
Do not charge the battery for over 6 hours. Over charging the battery generates excessive heat and will damage thebattery.
Please use the battery charger with adult supervision. Do not use it near water or when wet.
Do not use the battery charger if the wire is frayed or worn.
After the first time charging battery.
If take 6 hours to charge a completely discharged battery. Run the battery until it is discharged before charging again.
Attention
4
2-2
34
2
5
8x
1
2
1
Reverse Switch
Servo Factory Settings
Setup Before Starting
1
Transmitter Preparation
Antenna
Screw in the antenna tightly.
AA Alkaline Batteries
Battery Cover
Transmitter Battery Installation
Note Direction.
2
Receiver Antenna Installation
Z150
Antenna Pipe
Z150
Antenna Pipe
Removing the Body
Preparing The Chassis
Do not cut or shorten antenna wire.
Straighten antenna with a screwdri-
ver so it is eaiser to insert into
antenna tube.
Make sure antenna
is fully inserted.
a
b
75106
Body Clip (6mm/Black)
75106
Body Clip (6mm/Black)
75106
Body Clip (6mm/Black)
75106
Body Clip (6mm/Black)
75106
Body Clip (6mm/Black)
5
Cautions
Attention
2
1
3
Disconnect the battery when you are not running
the vehicle.
The vehicle may run out of control or the battery
can overheat and cause a fire.
Battery Installation
Make sure receiver is turned OFF before
connecting the battery, the vehicle may run
out of control.
OFF
Receiver Switch
1
2
1
2
3
2
OFF
1
2029
HPI Ni-Cd Battery Pack
(7.2V 1500mAh)
6
2-3
1
ON
Radio Control Car Operating Procedures
12
1
2
3
ON
Turn on transmitter first, then turn
on receiver.
Make sure no one else is using the same radio frequency as you are
using. See page 25.
Put the car on a stand, with wheels off the ground and connect battery.
Extend the Antenna
Check Max. Range
Make sure no one else is using the same radio frequency as you are using. Check the radio system and range before every driving session.
To properly check the range, have a friend hold the truck and walk to the farthest distance that you plan to operate your model. Operate the
controls to make sure the model responds correctly. Do not operate the model if there is any problem with the radio system. If you switch on
the R/C car first before the transmitter, you may lose control of the R/C car.
Turn on transmitter first, then turn
on receiver.
Good BatteriesLow Batteries (Light Blinks)
Extend the Antenna
Activating R/C Unit
Checking Radio Range
Reference Section
Page 25 7
2
Attention
7
4
5
Steering Trim
Turn steering trim to set tires in
completely centered position.
Reverse operation
A and B show the two ways to go in reverse.
BForward Brake Stop Reverse
AStop → Reverse
Reverse
ReverseForward Brake
Stop (Neutral)
Stop (Neutral)
Steering Trim Setup
Transmitter Operation
Front
Steering Wheel
Throttle Trigger
Steering Dual Rate
Straight (Neutral)
Right turn
Left turn
Front
Throttle Trim
If your vehicle is moving, adjust the throttle trim until it stops.
To be used to adjust steering servo
throw.
Brake / Reverse
ForwardStop (Neutral)
8
6
Driving!
Do not drive the car on public streets or highways.
This could cause serious accidents, personal
injuries, and/or property damage.
Do not drive the car in water or sand or on a carpet.
This could damage the car.
Make sure everyone is using different frequencies
when driving together in the same area.
With the high performance motor and battery, the SWITCH is capable of running very fast. Follow the cautions below and drive the SWITCH
in a very large space especially until you get the feel of driving the car.
Do not drive the car in the following places.
AccelerationAcceleration SlowdownSlowdown AccelerationAcceleration
SPEED MAX SPEED MAX SPEED
If you fully pull the throttle trigger on the transmitter, the car will run very fast and become difficult to control. Drive slowly until you become
used to driving the car. Pull the throttle trigger slowly and gradually, and the car will move forward slowly. Release or push the throttle
trigger to operate the brake, and the car will stop.
Install body and enjoy! Allow the car to cool down for 15 minutes
between each run.
When the car is running toward the driver, the directions of the
steering wheel are reversed.
Once you become conformable driving the SWITCH, practice
driving on a track with pylons.
Drive slowly in the beginning.ޓ
Steering Operationޓ
Once you become comfortable driving the car, use pylons for
practicing. It would be difficult to drive through pylons in the
beginning. It is advisable to watch a little ahead of the car
directions instead of just watching the car.
Practice Turning!ޓ
Right turn Once you become able to drive the car without hitting pylons,
we recommend you drive in a race track. You can safely enjoy
driving in a race track as long as you observe certain manners.
You can meet other RC drivers and exchange information with
them at a race track and your RC life will be more fun.
Install body and enjoy!
ޓ
Attention
9
2-4
Maintenance After Driving
7
Turning R/C Unit Offޓ
123
Turn off receiver first, then turn off
transmitter.
If you switch off the transmitter first before the R/C car, you
may lose control of the R/C car.
Disconnect the battery when you are not running the vehicle.
The vehicle may run out of control or the battery can overheat
and cause a fire.
OFF
Turn off receiver first, then turn off transmitter.
OFF
Retract the antenna
After you finish driving, remove dirt and tire debris from the chassis with rag, a soft brush or air blower and see if there are any damaged or worn
parts. This is an important part of your car maintenance.
Use rag to remove dirt and tire debris from
the chassis.
Remove dust on the drive system with air
blower or brush.
Make sure all screws are properly tightened.
Cautions
Attention
10
3
Trouble Shooting
4
Fail-safe Function of the Speed Control
If the circuit heats up due to extra load to the speed control, the fuel-safe will be activated for circuit protection. Once the fail-safe is activated, the
throttle repeats tuning on and off quickly and acceleration becomes improper even though you keep pulling the throttle trigger in the same degree.
In this case, stop driving immediately and solve the problem referring to the Trouble Shooting. If you keep driving the car with the fail-safe
activated, the speed control may be damaged.
If R/C car does not move or you have no control, see below.
Description Cause Solution
The car does not
operate at all.
The car does not follow
your operation.
The car does not
operate properly.
Transmitter or receiver is off. Turn on both transmitter and receiver.
Batteries are not placed properly in the transmitter. Place batteries in the transmitter properly.
The drive battery is not charged enough. Charge the drive battery.
There is not enough power in the transmitter or
receiver batteries.
Replace the transmitter batteries with new ones and charge
the drive battery.
Transmitter or receiver antenna is not fully extended. Fully extend both antennas.
Someone else is using the same radio frequency as
you are using.
Change your radio frequency to the one no one else is
using, wait until the driver using the same radio frequency
finishes driving, or drive your car at a different place.
The fail-safe function of the speed control is
activated. Check if the drive system rotates smoothly.
340
EN-1 Electronic Speed Controller
11
5
Replacing the Pinion Gears & Motor
Adjust the gear ratio by changing pinion gears according to the size of the driving site and other conditions.
Spur Gear
Slow
ㆃ
Good
⦟
62T
#38407
18T
#6918
19T
#6919
20T
#6920
21T
#6921
22T
#6922
23T
#6923
24T
#6924
25T
#6925
27T
#6927
28T
#6928
29T
#6929
30T
#6930
31T
#6931
32T
#6932
33T
#6933
34T
#6934
8.73 8.27 7.85 7.48 7.14 6.83 6.54 6.28 5.82 5.61 5.24
5.42 5.07 4.91 4.76 4.62
Long Short
Pinion Gear
Gear Ratio
ࠡࡗᲧ
Max. Speed
ᦨ㜞ㅦ
Acceleration
ടㅦ
Running Time
ⴕᤨ㑆
Std.
1
Pinion Gear Cover Removal
38408 3
Gear Ratio
Replacing the Pinion Gears
A 540 size motor with 21T or more turns can be used (except some racing motors).
!
Fast
Bad
Z281
Z281 38410 6
Z281
Step Screw M3x12mm
x2
12
1.5
mm
1.5
mm
4
Pinion Gear & Motor Installation
2
Motor Removal
38410 7
Z569
Z569
3
Pinion Gear & Motor Removal
38406 6
Z525
Z525
Z700
Z901
38407 c
1148
38406 5
Secure Pinion Gear
here.
Cut off the projection when
you change the number of
the Pinion Gear teeth.
Z901
Remove the fixture after securing
Pinion Gear in place.
Pinion Gear
1148
Z525
Z525
Z700
Z700
6
38406
x2
Z569
TP. Binder Head Screw M3x15mm
M3x15mm
Z525
Flat Head Screw M3x6mm
x2
x1
Z700
Set Screw M3x3mm
Z525
Flat Head Screw M3x6mm
x2
Z700
Set Screw M3x3mm
x1
13
Tentatively tighten.
6
Motor Cover Installation
Motor Installation
5
Z569
Z569
38410 7
38408 3
38410 6
Z281
Z281
Paper for Gear Mesh
Adjust the motor position to get proper gear mesh.
To get a perfect gear mesh, place a piece of paper (See top of
page) between the gears and tighten the motor mount screws.
The spur gear may be damaged if the gear mesh is wrong.
Proper Spur Gear Mesh
Paper for Gear Mesh
Tighten securely.
Z281
Step Screw M3x12mm
x2
x2
Z569
TP. Binder Head Screw M3x15mm
M3x15mm
Screwdriver (No.02)
14
6-1
6-1 6-2
6
Replacing Each Part
1
Front Tite Removal
Replacing the Front Bumper
Replacing the Front Bumper
Required parts Required parts
38404 4
Z591
Various bodies can be mounted to the chassis by replacing some parts.
Replacing the Wheelbase
38403 3
38403 138403 4
38403 2
38402 5
Front Bumper(Small) Front Bumper (Large) Long Wheelbase
Short Wheelbase
Z569
TP. Binder Head Screw M3x15mm
M3x15mm
Select a Front Bumper suited to your body type.
Example of replacing a small Front Bumper with a large Front Bumper.
Example of replacing a large Front Bumper with a small Front Bumper.
Select a Wheelbase suited to your body type.
210mm225mm
x2
Z591
Flanged Screw M3x20mm
Front Bumper(Small)
Front Bumper(Large)
Use this part when replacing with
Small Bumper.
Use this part when replacing with
Large Bumper.
Use this part for
Long Wheelbase.
Use this part for
Short Wheelbase.
210 225
15
2
Front Suspension Removal
3
Front Bumper (Small) Removal
38404 6
38404 6
38429 9
Z281
Z281
38429 9
Z577
Z577
Z583
Z583
38490
38490
38404 7
38404 7
38403 1
88005
88005
Left
L
Right
R
Left
L
Right
R
4
Front Bumper (Large) Installation
38403 3
88005
88005
x2
88005
Suspension Shaft 3x40mm
x2
88005
Suspension Shaft 3x40mm
Z577
TP. Flat Head Screw M3x10mm
Z583
TP. Flat Head Screw M3x25mm
x2
x2
Z281
Step Screw M3x12mm
x2
16
5
Front Suspension Installation
6
Front Tire Installation
38404 6
38404 4
Z591
38404 6
Z281
Z577
Z577
Z583
Z583
9
38429
9
38429
7
38404
7
38404
38490
38490
XXXXXXXXXX
The offset for tire mounting can be adjusted according to a body design.
Various bodies can be mounted to the chassis by replacing some parts.
!
Z577
TP. Flat Head Screw M3x10mm
Z583
TP. Flat Head Screw M3x25mm
x2
x2
Z281
Step Screw M3x12mm
x2
x2
Z591
Flanged Screw M3x20mm
17
6-2
1
Rear Tite Removal
2
Rear Suspension Removal
38404 7
Replacing the Wheelbase
38404 7
38490
38490
38404 6
Z567 Z281
38404 6
Z577
Z577
Z281
38404 4
Z591
Example of replacing a Short Wheelbase with a Long Wheelbase.
You can replace Long Wheelbase with Short Wheelbase
by following the same product.
x2
Z591
Flanged Screw M3x20mm
Z577
TP. Flat Head Screw M3x10mm
x2
Z281
Step Screw M3x12mm
x2
Z567
TP. Binder Head Screw M3x10mm
x2
18
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