DHK Hobby HUNTER 4x4 SC TRUCK 1/10 READY TO RUN Operator's manual

1/10 Scale 4WD Brushless Short Course Truck
用户使用说明书
Model :8135
#

1
Introduction
Thank you for choosing DHK's HUNTER! This short course truck(SCT) is designed in thorough research
and assembled with utmost craftsmanship. Hunter is a 1:10 sclale 4WD brushed SCT can run as fast as
22MPH/35KPH. It is easy to drive and it uses quality parts and accessories to achieve best performance.
It will bring you a lot of joy and fun when you drive this model.
Before starting to run the model, you are kindly requested to take some time to review this instruction
manual for a better operation. This easy to follow instruction manual aims to provide a general guideline
for end-users. Kindly note that a good understanding of the model, its relevant parts together with other
accessories packed in this consumer box will enable you to have fun in driving. Meanwhile, users are
recommended to conduct regular maintenance for a smooth performance. Failure to do so might shorten
the lifespan of your model. You are cordially advised that DHK Hobby makes all necessary parts and
accessories to support you for any problem during and after your driving.
Before you operate this radio controlled model, you must understand the following:
1. Make sure that all screws and nuts are tightened securely.
2. Make sure that the batteries are fresh or fully charged so the vehicle won't lose control.
3. Do not drive the model in the following places/areas to avoid injury of people and damage to the
public property. Drive your model in open areas.
> On public streets or parks. Cause injury or death of pedestrians, young children, animals and pets.
> On highways. Cause accidents or damage of the model.
> In water. Cause damage to electronic components and parts, or direct failure of the model.
4. Check all signals and electronic parts are working properly.
After running, battery, ESC, and motor can be very hot. Make sure not to touch with bare hands.
！
Warning:
This high performance model can run very fast. It is designed and produced for people of 14+ years of
age to operate. Players under that age should be guided by adult supervision. Entry level players should
seek guidance and supervision from experienced model players. Players are responsible for any/all
accidental occurrences (human or animal injury, damage to property and possessions, breakage of the
model itself) due to improper operation of this model.

Model specifications
Overall length
Width
Height
Wheelbase
Ground clearance
Weight (net)
Front track/rear track
Tire diameter/width
Wheel diameter/width
Gear ratio
Speed
: 572mm (22.5 in)
: 306mm (12.0 in) (Excluding body)
: 153mm (6.02 in)(Excluding body)
: 330mm (13 in)
: 30mm (1.2 in)
: 6.0lbs/2.70kgs(Excluding transmitter)
: 258mm/258mm (10.2 in/10.2 in)
: Φ108*45mm (Φ4.3*1.8 in)
: Φ60.5*40mm (Φ2.4*1.6 in)
: 10.97:1
: 20MPH/32KPH
Articles required to operate the model
4 pcs AA batteries (Ni-Mh or Ni-Cd rechargeable batteries, or non-rechargeable alkaline batteries) for
2.4GHz transmitter. Please refer to the 2.4GHz transmitter Instruction Manual.
2 Channel 2.4GHz radio system
HUNTER comes with a full function 2 channel 2.4GHz radio transmitter and receiver. Please refer to the
2.4GHz User's Instructions Manual for detail.
2
plug is also fine.

6kgs Servo
Features : Plastic gears, ball bearings
Working voltage : 4.8-6.0V
Speed (seconds/60°C) : 0.18-0.16sec/60º
Torque : 6kg/cm
Net weight : 40g
Size(LxWxH) : 40.8x20.1x38mm
NiMh Battery
This SCT comes with single 7.2V 1800mAh capacity high rate NiMh stick-type battery pack. Handling
NiMh batteries should be very careful. Please read the following points with regard to charging and
discharging NiMh batteries.
Warning
► Never mix batteries from different manufacturers.
► Never mix batteries of different capacities.
► Never mix batteries of different chemistries, i.e. NiCd, NiMh, Lithium etc.
► Never DROP the battery if you can help it as NiMh batteries damage internally quite easily.
► Never store NiMh in the refrigerator.
► Never expose to extreme heat.
► Never make wrong polarity connection when charging and discharging battery packs. Always double
3
check polarity of battery's connector to make sure red wire to red wire and black wire to black wire.

► Please always use a smart charger (with automatic power cut-off function ) to charge NiMh battery.
Charging NiMh battery without an attention may cause battery explosion.
► When charging NiMh battery, please always put the battery in a wire-proof place to avoid any accident.
► NiMh batteries have higher energy than NiCd battery, but they have higher self discharging rate and
shorter shelf life. Therefore, please always keep NiMh cells / battery pack in charged condition after
using or before storing them
► NiMh batteries and packs should be charged at least every six months, otherwise the capacity will
reduce or it can become dead. For safety reasons, we usually ship NiMh battery without fully charged.
NiMh battery must be charged before use, and allow 3-5 cycles of charging and discharging for battery
capacity to recover.
Caution!
NiMh battery pack may be hot. Do not allow the battery's internal electrolyte to get in the eyes or on skin.
Wash affected areas with soap and water immediately if they come in contact with the electrolyte. If
electrolyte makes contact with the eyes, flush with large amounts of water for 15 minutes and seek
medical attention immediately.
Environmental impact
Improper disposal of NiMh batteries poses less environmental hazard than that of NiCd because of the
absence of toxic cadmium. However, mining and processing the various alternate metals that form the
negative electrode may pose other types of environmental impact, depending on the metal, mining method,
and environmental practices of the mine.
Terminology
Electronic speed controller (ESC)
An electronic circuit with the purpose to vary an electric motor's speed, its direction and possibly also to
act as a dynamic brake. ESCs are often used on electrically-powered radio controlled models.
An ESC can be a stand-alone unit which plugs into the receiver's throttle control channel or incorporated
into the receiver itself, as is the case in most toy-grade R/C vehicles. Some R/C manufacturers that install
proprietary hobby-grade electronics in their entry-level vehicles, vessels or aircraft use onboard electronics
that combine the two on a single circuit board.
Brush DC motors
A typical RC brushed motor looks like a small metal can with an axle sticking out of one end and battery
leads on the other end. The commutator shaft, armature, wires, brushes, and magnets are contained
inside that can. Those carbon brushes inside the can connect with the commutator shaft. When voltage
is applied through the battery leads to the brushes in contact with the commutator shaft it causes the motor
to spin and gives forward and reverse motion to the RC.
Brushed motors are rated by the number of turns of copper wire around the armature within the motor.
Stock unmodified brushed motors are usually 20 turn motors but can go all the way down to 7 turn modified
brush motors. A higher number of turns provides for more torque but also lower RPMs and less speed.
But it also provides longer battery life. The lower the number of turns of the brushed motor, the more voltage
can be applied with less torque and higher RPMs-resulting in more speed.
RC servos
Servos are hobbyist remote control devices typically employed in radio-controlled models, where they
are used to provide actuation for various mechanical systems such as the steering of a car, the control
surfaces on a plane, or the rudder of a boat.
Due to their affordability, reliability, and simplicity of control by microprocessors, RC servos are often
used in small-scale robotics applications.
RC servos are composed of an electric motor mechanically linked to a potentiometer. A standard RC
receiver sends Pulse-width modulation (PWM) signals to the servo. The electronics inside the servo
translate the width of the pulse into a position. When the servo is commanded to rotate, the motor is
powered until the potentiometer reaches the value corresponding to the commanded position.
4
RC servos use a three-pin 0.1" spacing jack (female) which mates to standard 0.025" square pins (which

should be gold-plated, incidentally). The most common order is Signal, +voltage, ground. The standard
voltage is 6VDC, however 4.8V and 12V has also been seen for a few servos. The control signal is a digital
PWM signal with a 50Hz frame rate. Within each 20ms timeframe, an active-high digital pulse controls
the position. The pulse nominally ranges from 1.0ms to 2.0ms with 1.5ms always being center of range.
Pulse widths outside this range can be used for "overtravel" -moving the servo beyond its normal range.
This PWM signal is sometimes (incorrectly) called Pulse Position Modulation (PPM).
The servo is controlled by three wires: ground, power, and control. The servo will move based on the
pulses sent over the control wire, which set the angle of the actuator arm. The servo expects a pulse
every 20 ms in order to gain correct information about the angle. The width of the servo pulse dictates
the range of the servo's angular motion.
A servo pulse of 1.5 ms width will typically set the servo to its "neutral" position or 45°, a pulse of 1.25 ms
could set it to 0° and a pulse of 1.75 ms to 90°. The physical limits and timings of the servo hardware varies
between brands and models, but a general servo's angular motion will travel somewhere in the range of
90° - 120° and the neutral position is almost always at 1.5 ms. This is the "standard pulse servo mode"
used by all hobby analog servos.
A hobby digital servo is controlled by the same "standard pulse servo mode" pulses as an analog servo.
Some hobby digital servos can be set to another mode that allows a robot controller to read back the
position of the servo shaft. Some hobby digital servos can optionally be set to another mode actual and
"programmed", so it has the desired PID controller characteristics when it is later driven by a standard
RC receiver.
RC servos are usually powered by the receiver which in turn is powered by battery packs or an Electronic
speed controller (ESC) with an integrated or a separate Battery eliminator circuit (BEC) Common battery
packs are either NiCd, NiMH or Lithium-ion polymer battery (LiPo) type. Voltage ratings vary, but most
receivers are operated at 5V or 6V.
5

Parts List
Number
8381-104
8381-102
8381-103
8381-106
8381-107
8381-108
8381-109
8381-110
8381-111
Flathead screw-coarse thread(KB2.6*10
mm) (16 pcs)
Desc
Diff outdrive/pins (dia 2*10mm)
Pins(dia 2*10mm) (16 pcs)
Diff case set/diff case cover/diff gasket
Washer-A/washer-B (8 pcs each)
Gear-18T (2 pcs)/gear-12T (4 pcs)
O Ring(dia 8mm * dia 2mm) (16 pcs)
Ball bearing(dia 10mm * dia 15*4mm)
(2 pcs)
Diff pins(dia 4*25.8mm) (4 pcs)
8381-113
8381-114
8381-115
8381-116
8381-117
8381-118
8381-119
8381-206
8381-207
8381-208
8381-305
8381-306
8381-309
8381-310
B head screw-coarse thread(BB3*16mm)
Flathead screw(KM2.6X6mm) (16 pcs)
Ball bearing(dia 8mm * dia14*4mm)
(2 pcs)
Pins(dia 2*8mm) (16 pcs)
Pinion gear outdrive/pins(dia 2*8mm)
Ball bearing(dia 5 mm * dia 11*4mm)
(2 pcs)
Diff gear box-F/R
(16 pcs)
Center diff gear box/center diff gear box
plate
B head screw-coarse thread
(BB3*20mm) (16 pcs)
Center outdrive set
Shock ball (8 pcs)
M3 nylon nut (8 pcs)
Shock shaft (4 pcs)
Shock spring (4 pcs)
8381-50L
8381-50R
8381-501
8381-502
8381-503
8381-601
8381-602
8381-603
8381-604
8381-605
8381-606
8381-608
8131-6Z0
8381-6Z2
8381-6Z1
Assembly of upper sus.arm-Left
Assembly of upper sus.arm-right
Upper sus.arm ball (4 pcs)
Upper sus.arm/rod end (2 sets)
Upper sus.arm linkage (2 pcs)
Brass washer (4 pcs)
Servo saver bushing/adjustment ring
Servo saver spring (4 pcs)
Servo saver sus. Arm-upper/lower/
steering sus. Arm
B head screw-coarse thread(BB3*12mm)
(16 pcs)
Screw bushing (16 pcs)
Shaft (2 pcs)
Assembly of steering linkage (2 pcs)
Plastic rod end (8 pcs)
Steering linkage (2 pcs)
Double way ball end (8 pcs)
Upper sus.arm mount-rear/suspension
mount
B head screw-coarse thread(BB3*14mm)
(16 pcs)
8381-6Z3
8381-701
8381-702
B head screw-coarse thread(BB3*10mm)
(16 pcs)
Lower sus.arm-front (2 pcs)
Drive shaft set/revolving shaft (2 sets)
8381-703
8381-706
8381-707
Ball bearing(dia 6mm * dia 12*4mm)
(2 pcs)
C-hub (2 pcs)
8381-710
8381-714
Shock tower (2 pcs)
Pivot ball mount (4 pcs)
8381-717
8381-718
Upper sus.arm shaft (4 pcs)
8381-719
6
Lower sus.arm plate-front
C-hub screw bushings (16 pcs)
T head hex screws (TM4*12mm) (16 pcs)
T head hex screws (TM4*22mm) (16 pcs)
B head screw-coarse thread(BB3*18mm)
(16 pcs)
B head screw(BM3*56mm) (8 pcs)
B head screw(BM3*43mm) (8 pcs)
Body post holder/body post
B head screw(BM3*24mm) (16 pcs)
Lower sus.arm-rear (2 pcs)
Rear hub-L/R
B head screw(BM3*18mm) (16 pcs)
B head screw(BM3*10mm) (16 pcs)
Pin-A(dia 1.5mm) (16 pcs)
Motor gear-18T/Lock nut(M3*3)
Servo mount
Servo arm-B (2 pcs)
B head screw(BM2.6*6mm) (12 pcs)
Assembly of steering tie rod
Steering tie rod (2 pcs)
Central drive shaft-A
Central drive shaft-B
Antenna tube (3 pcs)
Pin-B(Φ1.2mm) (16 pcs)
Screw washer(4 pcs)
Flathead screw(KM3X10mm) (16 pcs)
Flathead screw-coarse thread
Upper deck-A
Upper deck-B
Flathead screw(KM4X11.5mm) (12 pcs)
(KB3*10mm) (16 pcs)
8381-721
8381-723
8381-724
8381-725
8381-726
8381-727
8381-728
8382-703
8382-705
8381-801
8381-802
8381-803
8381-805
8381-807
8131-9M2
8381-9S1
9381-9B4
8131-9S2
8381-9Z0
8381-9Z1
8381-005
8381-006
8381-008
8381-009
8381-010
8381-011
8381-012
8381-016
8381-017
8381-024
Body nerf bars (left & right)
8135-001
8135-002
8135-003
8135-004
8135-005
8135-006
8135-007
Tire complete (black rims) (2 pcs)
Chassis
Upper deck mount-F/R
Battery mount-C/D
Waterproof receiver box
Tires with foams (unglued) (2 pcs)
8133-100
8133-101
8133-102
8133-103
Assembly of diff gear box
Diff set
Crown gear-41T (large)/pinion gear-11T
(small)
Assembly of the pinion gear
Clear SCT body (PC) (W/body decals
and window cutout)
8135-009C
8135-008 Wheels (2 pcs)
Printed SCT body (PC) (W/body decals)
8135-009
Number Desc
Servo saver assembly-complete
Steering plate
8135-600
8135-601
Wheel axle (2 pcs)
Steering arm (2 pcs)
8135-701
8135-702
8135-703 Hex adapter (4 pcs)
8135-200
8135-201
Central diff gear box(complete)
Central diff set
Differential lock
8135-202
Spur gear-53T(plastic) (2 pcs)
Shock absorber complete (2 pcs)
8135-203
8135-301
Body decals (Hunter)
8135-010
8135-704
8135-705
8135-801
Set screws-M4 (4 pcs)
Front bumper/upper sus.arm mount-front
Rear bumper/upper sus.arm mount-front

Parts List
Brushed ESC 45A
Brushed motor 550
7.2V SC 1800mAh NiMh battery
H111
H112
H113
Servo (6kg)
2.4GHz Transmitter
2.4GHz receiver
D303
D302T
D302S
7
Number Desc Number Desc
8135-9M1 Motor mount
8381-40L
8381-40R
8381-401
8381-402
8381-403
8381-400 Anti-roll bar assembly
Assembly of anti-roll bar linkage-Left
Assembly of anti-roll bar linkage-Right
Anti-roll bar rod end (8 pcs)
Anti-roll bar linkage (4 pcs)
Anti-roll bar pivot ball-upper/lower
(4 sets)
8381-404
8381-405
Set screws (M3*3mm) (8 pcs)
Anti-roll bar(dia 2.2mm) (2 pcs)
8381-607 Steering plate
Steering arm (2 pcs)
8381-709
Set screws (M4*10mm) (16 pcs)
8381-716
Optional Parts

8135-600 Assembly of the
servo saver
8331-200 Assembly of the
center diff gear box
8381-606
8381-606
8381-601
8381-605
8381-601 8381-608
8381-608
8381-601 8381-604
8135-601 8381-605
8381-601 8381-602 8381-604 8381-604 8381-603 8381-602
8133-103
8133-102
8133-102
8133-101
8381-207
8381-206
8381-206
8381-100 Assembly of the
diff gear box (8133-100)
8381-117
8381-208
8381-110
8381-111
8381-108
8381-107
8381-108
8381-109
8381-110
8331-201
8381-109
8381-103
8381-106
8381-107
8381-108
8381-107
8381-108
8381-107
8381-106
8135-203
8381-104
8381-103
8381-208
8381-201
8381-101
8381-112
8381-118
8381-118
8381-119
8381-110
8381-110
8381-112
8381-115
8381-105 8381-116
8381-107
8381-114
8381-113
8381-107
8381-108
8381-102
8381-111
8381-103
8381-106
8381-108
8381-107
8381-108
8381-109
8381-107
8381-101
8381-108
8381-107
8381-106
8381-105
8381-103
8381-109
8381-102
8381-104
8381-50R
8381-50L
8381-501
8381-501
8381-502
8381-503
8381-502
8381-502
8381-503
8381-502
8381-50L Assembly of upper sus.arm-Left 8381-50L Assembly of upper sus.arm-Right
8135-300 Assembly of the
shocks
8381-400 Assembly of the
sway bar
8381-405
8381-404 8381-403
8381-403
8381-402 8381-402 8381-401
8381-403
8381-401 8381-402 8381-401
8381-40R
8381-40L
8381-309 8381-306
8381-501
8381-310
8381-305
8381-305
8133-112
8

8135-9M1
8381-9S3
8135 Assembly of
the motor gear
8381-9S3
8131-9M2
8381-404
H112
8135-704
8135-001
8135-705
8381-306
8381-306
8381-727
8381-727
8381-306
8381-306
8381-728
8381-728
8381-726
8381-703
8382-703
8381-009
8381-009
8381-807
8381-807
8381-306
8381-306
8381-725
8381-724
8381-725
8381-724
Assembly of the
front sus.arm system
8381-726
8381-400
8381-726
8381-100
8135-300
8135-300
8381-50L
8381-50R
8381-719
8381-726
8381-721
8381-119
8382-705
8382-705
8135-705
8381-718
8381-718
8381-717
8381-726
8381-716
8381-716
8381-714
8381-714
8381-703
8381-702
8381-119
8381-119
8381-103
8381-708
8381-707
8381-707 8381-103
8381-707
8381-706
8381-706
8381-701
8381-701
8381-723
8381-710
8381-723
8381-723
8135-701
8135-701
8135-001
8381-710
8135-704
8135-703
8381-103
8135-702
8381-110
8381-103
8135-703
8381-710
8135-702
8381-110
9

8135-008
8135-007
8135-001
10

8331 Assembly of
the motor gear 8132-9M1
8381-9S3
8381-9S3
8381-404
H109
8135-9M1
8135-001
8135-704
8135-704
8135-001
8382-705
8381-306
8381-306
8381-727
8381-727
8381-306
8381-728
8381-728
8135-703
8381-726
8381-119
8381-703
8135-801
8135-801
8382-703
8382-703
8381-807
8381-807
8381-009
8381-009
8381-306
8381-306
8381-717
8381-718
Assembly of the
rear sus.arm system
8381-103
8382-705
8381-726
8381-721
8381-726
8135-300
8382-705
8135-300
8381-103
8381-103
8135-701
8135-701
8381-400
8381-110
8381-802
8381-710
8135-703
8381-100
8381-707
8381-707
8381-716
8381-119
8381-719
8381-50R
8381-726
8381-103
8381-50L
8381-726
8381-802
8381-702
8381-702
8381-119
8381-801
8381-110
8381-710
8381-726
8381-716
8381-719
8381-701
8381-701
11

H108
8381-207
8381-206
8135-202
8135-005
8135-005
8381-011
8135-006
8381-703
8381-012
8381-011
8381-703
8381-703
8381-703
8381-024
8381-012
8381-703
8381-024
8381-011
8135-003
8135-003
8381-024
8381-206
8135-200 Assembly of the
center diff gear box
8381-208
8381-110
8381-109
8381-110
8135-201
8381-109
8381-103
8381-106
8381-107
8381-107
8381-106
8135-203
8381-104
8381-103
8381-208
8381-201
8135-600
H110
8381-010
D302R
8381-005
8381-006
8135-004
8135-004
8135-002
8131-9S2
9381-9B4
8381-703
8381-9Z0
8381-9Z1
8381-6Z3
8381-6Z3
8381-6Z2
8381-6Z2
8381-703
D303
8381-9S1
8381-6Z3
8381-6Z3 8381-6Z2
8381-6Z2
8381-6Z1
8381-6Z0
12

8381-6Z0
8381-008
8381-9Z0
8381-702
8381-702
8381-702
8381-6Z0
8381-703
8381-805
8381-805
8381-702
8381-703
8381-703
8381-703
8381-018
8381-017
8381-016
13

8381-206 Center diff gear box/
center diff gear box plate
8381-207 B head screw-coarse
thread(BB3*20mm) (16 pcs) 8381-208 Center outdrive set
14

8381-604 Servo saver sus. Arm-
upper/lower/steering sus. Arm
8381-605 B head screw-coarse
thread(BB3*12mm) (16 pcs) 8381-606 Screw bushing (16 pcs) 8381-608 Shaft (2 pcs)
8381-602 Servo saver bushing/
adjustment ring
15
8381-717 Shock tower (2 pcs)

8382-703 Body post
holder/body post
16
8381-803 B head screw
(BM3*18mm) (16 pcs)
8381-805 B head screw
(BM3*10mm) (16 pcs)
8381-807 Pin-A(dia
1.5mm) (16 pcs) 8131-9M2 Motor gear-18T/
Lock nut(M3*3)
8381-9S1 Servo mount
8131-9S2 B head screw
(BM2.6*6mm) (12 pcs)
8381-9Z0 Assembly of
steering tie rod
8381-9Z1 Steering tie rod (2 pcs) 8381-005 Central drive shaft-A 8381-006 Central drive shaft-B 8381-008 Antenna tube (3 pcs)

8135-002 Chassis
8135-003 Body nerf bars
(left & right)
8135-004 Upper deck
mount-F/R 8135-005 Battery mount-C/D
8135-006 Waterproof
receiver box
8135-007 Tires with foams
(unglued) (2 pcs) 8135-008 Wheels (2 pcs)
8135-009
(PC)
Printed SCT body
(W/body decals)
8135-009C Clear SCT body(PC)
(W/body decals and
window cutout) 8135-010 Body decals (Hunter)
8135-200 Central diff gear
box(complete) 8135-201 Central diff set
8381-010 Screw washer
8381-009 Pin-B
(dia 1.2mm) (16 pcs) 8381-012 Flathead screw-coarse
thread(KB3*10mm) (16 pcs)
8381-011 Flathead screw
(KM3X10mm) (16 pcs)
8381-016 Upper deck-A 8381-017 Upper deck-B
8381-024 Flathead screw
(KM4X11.5mm) (12 pcs)
8133-100 Assembly of
diff gear box
17
8133-101 Diff set 8133-102 Crown gear-41T (large)
/pinion gear-11T (small)
8133-103 Assembly of the
pinion gear
8135-001 Tire complete
(black rims) (2 pcs)

18
8135-202 Differential lock
8135-203 Spur gear-53T
(plastic) (2 pcs)
8135-301 Shock absorber
complete (2 pcs)
8135-600 Servo saver assembly
-complete
8135-601 Steering plate 8135-701 Wheel axle (2 pcs) 8135-702 Steering arm (2 pcs) 8135-703 Hex adapter (4 pcs)
8135-704 Set screws-M4 (4 pcs)
8135-705 Front bumper/upper
sus.arm mount-front
8135-801 Rear bumper/upper
sus.arm mount-front 8135-9M1 Motor mount
D303 Servo (6kg) D302T 2.4GHz transmitter D302S 2.4GHz receiver H111 Brushed ESC 45A
H112 Brushed motor 550
H113 7.2V SC 1800mAh
NiMh battery
Optional Parts

19
8381-404 Set screws
(M3*3mm) (8 pcs)
8381-716 Set screws
(M4*10mm) (16 pcs)