PR RACING PR SB401-R User manual

www.pr-rc.com
PR SB401R SPORT 1/10 ELECTRIC 4WD OFF-ROAD BUGGY
ITEM NO:77500456

SAFETY WARNING
This model is a high -performance radio controlled racing product that is
designed for use on R/C car race tracks. If it is misused it could cause injury
to the operator or others. Many of the items in this kit are small enough to be
accidentally swallowed; therefore, it is not suitable for young children. All
items, inclusive of liquids, contained in this kit are not intended for human
consumption. Rotating parts of the car may cause injury if not handled with
care.
Name:PR SB401R SPORT 1/10 ELECTRIC 4WD OFF-ROAD BUGGY
Pr racing has taken all the refinements and changes from the 401R buggy, and
applied them to create the 401R ! On top of that we have made further changes
specifically for this vehicle to be the most capable, adjustable, duarable
competition 4x4/ Buggy on the market out of the box! From the aggressive
"Low Center of gravity" truggy body, to the "Type R" style shocks and towers.
The 401R is ready to dominate on the very first lap!
Special features
CHASSIS:
Hard anodized 2.5mm Narrow chassis with side pods
deck of added duarability.
Alloy/carbon floating servo mount
Type R low center of gravity Buggy style body

SPECIFICATIONS
Type: 1/10th 4wd off-road Buggy
Power: Electric
Wheelbase: Adjustable 284mm to 290mm
Width: Front 250mm Rear 248mm
Gear Ratio: 2:6:1
Weight: 1725grams "Race ready" varies
Hardware: Full metric
Bearings: Sealed metal ball bearings
Wheels: 12mm Hex
Kit: Assembly required
ITEM REQUIRED TO COMPLETE
2 Channel surface frequency radio system
2S LiPo battery & compatible LiPo charger
1/10th ESC, 540 brushless motor, pinion gear
High speed servo
1/10th Tires and inserts Wheel
Tools, paint for polycarbonate body, tire glue, and threadlock
Silicon diff and shock oil
TRANSMISSION
Top loading Center gear differential with ultra hard cups
Updated gear ratio
Longer front and rear gear diff out drives for more droop
SUSPENSION AND STEERING
12.75mm "LCG" Type R Shocks
Type R "Low mount" Carbon fiber towers
Insert style suspension blocks
3.5 Degree caster blocks
Composite rear hubs with extra pin location for added width adjustability
Gullwing rear arms
High tensile steel turnbuckles
Instruction manual
Web link

1-2
03-07
A2-Gear Diff Assembly
A1-Main Chassis Assembly- Chassis Brace Installation
A3-Center Diff
A4-Gear Box Assembly
A5 Rear Central Transmission
B1-Suspension Mount Installation
B2-Front Hub Carrier Assembly(Left Side)
B3-Suspension Mount Installation-Sway Bar Installation
B4-Front Upper Turnbuckle Assembly
08-11
C1 RF Suspension Mount
C2-3-Rear Left Hub Carrier Assmebly
C4-Rear Upper Rod -Turnbuckle Assembly
12-14
D1-Bell Crank Installation
D2- Steering
D3-Turnbuckle Assembly-Steering Rod -Servo Rod
D4-Servo Installation
D6-Battery Plate Installation
15 -17
E1-Front & Rear Shock Assembly-R
E2-Front & Rear Shock Installation
E3-Motor Installation
E4-Mounting Tires, Wheel Installation
18 -20
21
C5-Sway Bar Installation
D5-Center Mount Plate
01
Upgrade Parts
22

Needle Nose Pliers Awl Grease
Screw Cement Round Cutter & Sander
Sharp Hobby Knife
Hex Wrench
1.5mm
2.0mm
Ball Differential
Grease
Ware Cutters
SP Knife Edge Reamer
For trimming bodies Cutting
along curved lines was never
so easy!
Do not pre-drill as precise
drilling of 1mm to 15mm
holes can be performed after
body shell painted.
A new battery must be charged before it is used. Refer to the charger instruction manual for charging.
Set up the radio control system as indicated below.
Battery
Transmitter
Off
On
Charger
Eletronic Speed
Controller
Receiver
Servo
Install batteries.(Transmitter)
Extend the antenna.(Transmitter)
Connect the battery to the ESC.
Extend the antenna.(Receiver)
Switch on both the transmitter and receiver.
Make sure the servos are in command.
Switch off both the transmitter
and receiver.
Retract the antrnna.
(Transmitter)
Center the trims.
Off
On
Off
On
Install Servo size.
10
49.40-49.50
55
20
40
18.00
14.50
44.50
20
mm
02
Cross Wrench
5.0mm-5.5mm
7.0mm-8.0mm
SILICON DIFF OIL

A1
Tighten securely.
03 Assemble left and right
sides the same way.
Main Chassis Assembly
Chassis Brace Installation
Part Bags used.
54430028-Sponge
54430028-Sponge
77480156
Carbon
77500096
OP-77500286
2mm Chassis
77500086
M3X8mm
M3X8mm
M3X6mm
77500016
77500066
68400016
Sponge
kit-90510016
2.5mm Chassis
M3X6mm
82400016
M3X8mm
80400036
3
M3X8mm
82400026
10
6

05 Apply oil.
A2
Part Bags used. Assemble as many times as
specified (here:twice). 04
Gear Diff Assembly
M2.6X10mm
82400166 →→
O-ring
5x1.5mm
(5x8x0.8) Shim
68480596
66481366
66480336
14T
85400016
66481366
M2.6x10mm
90500046-SB401R-T
(39T)
85400016
5x8x0.8 Shim
KIT-68480606 green
66480336
4X10X0.15
Shim
66480336
9T
KIT-66480976 Steel
31450016-O-ring-5x1.5mm
請照順序對角鎖緊差速上蓋螺絲
134
→
then
Tighten equally in the order of
3 4
→
2
1
5X8x0.8mm Shim
85440170
4
41
34
2
2
→
SILICON DIFF OIL
7000 Front
5000 Rear
Diff Oil
4X10x0.15mm Shim
85440160
8
3.5mm
85400016
8
OP-77500226 white
OP-66480356 aiuminum
80% oil max
After first drive
adjust
for track conditions
(Sold sepsrstely)
O-ring -5x1.5mm
4
31450016

A3
Part Bags used.
05
Apply oil. Do not over tighten.
Assemble in the
specified order.
Center Diff
Shim
4X8x0.25mm
OP-66402636 (3X78mm)
M2.6X10mm
4
M2.6X10mm
68481006
77500316
Modified-68481006 80T
Stock-77T
O-ring 5x1.5mm
Shim 5x8mm
3.5mm
66480336
9T
66480336
14T
5X8x0.8mm Shim
85440170
2
4X8x0.25mm Shim
85440150
4
Diff Oil
照順序對角輕鎖上差速上蓋螺絲
12
→
→
1 2
KIT-66480976 steel
OP-66480356 aiuminum
66480366 green
SILICON DIFF OIL
＃30000-＃50000
OP- 77500306
SB401R- Slipper Set
1
3
2
4
3→
Tighten equally in the order of
then 3
4
4
82400166
After first drive
adjust
for track conditions
→
(Sold sepsrstely)
2
3.5mm
85400016
O-ring -5x1.5mm
4
31450016
then
OP-68480586
80% oil max

A4
Tighten securely.
Part Bags used.
Tighten securely.
06
Apply grease. Apply threadlocker (screw cement)
Front
Gear Box Assembly Front Front Shock Tower nstallation
6
2
4.8x8mm Ball Studs-68430046
2
M3 Lock Nut 83400026
2
10X12.5X0.1
Shim 85440230
3
KIT-68480326
M3X10mm 80400046
2
5x8x0.1mm Shim 85440090
(2x9.8mm)79400086
2
10x15x4mm Ball Bearing
89430030
1
M4X3mm Set Screw 8400016
1
↙
Front
5x10x4mm Ball Bearing
89430010
OP-77480216 Aluminum
68480986
M3X10mm
10x15x4mm zz
5x10x4mm zz
5x10x4mm zz
10x15x4mm zz
Shim
5x8x0.1mm
Shim
5x8x0.1mm
M3X10mm
Shim 2 pieces
10X12.5X0.1
66401106(67mm)
66402626(68mm)
2x9.8mm 66401096
M4x3mm
kit-68481256
OP-68480336
10X12.5X0.1 Shim
77500236
R-15T
68480986
M3 Lock Nut
67410506
4.8x8mm

A5
Apply grease. Apply threadlocker (screw cement)
Gear Box Assembly Front
Part Bags used.
07
Rear Shock Tower Installation
Shim 2 pieces
10X12.5X0.1
(2x9.8mm)-79400086
10x15x4mm
Ball Bearing
89430030
2
M4X3mm Set Screw
78400016
1
5x10x4mm
Ball Bearing
89430010
2
M3X10mm 80400046
6
2
2
M3 Lock Nut - 83400026
4.8x8mm Ball Studs
68430046
5x8x0.1mm Shim
85440090
2
10X12.5X0.1 Shim
85440230
3
1
Rear
Tighten securely.
77500236
R(15T)
10x15x4mm zz
5x10x4mm zz
68480986
68480986
5x10x4mm zz
77500326-CVD(3X97mm)
9.8mm
66401096
68480326
68481256
M4X3mm
M3X10mm
80400046
Shim
10X12.5X0.1
.
10x15x4mm zz
Shim
5x8x0.1mm
M3X10mm
67410516
83400106 68430046
Shim
5x8x0.1mm
↙
Front
OP-77480216 Aluminum

B1
08
BAG
B
Tighten securely.
Part Bags used. Apply threadlocker (screw cement)
Suspension Mount Installation
Numbering
TOE SQUAT
FRONT HANGER INSERTS
F-16
F-18
F-7
F-8
F-9
F-17
F-10
F-11
F-12
F-13
F-14
F-15
F-6
F-5
F-4
F-3
F-2
F-1
0 0
+0.9 0
+1.7 0
-0.9 0
0 0
+0.9 0
-1.7 0
-0.9 0
0 0
0 0
0 -1.4
0 +0.7
0 0
0 -0.7
0 +1.4
0 -0.7
0 +0.7
0 0
R-19 +3.5 +2
FF FR
Note position-77500156
M3X10mm 82400106
2
M3X15mm 82400176
2
M3X8mm 82400026
2
A
CB
M3X8mm
KIT-77500116
Suspension Mount FR
OP-77510020 -2mm
M3X15mm
M3 Lock Nut
2
M3 Lock Nut - 83400026
M3X10mmM3X15mm
B
B
77500156

(Left Side)
B2
(Right Side)
B3
Part Bags used.
09
BAG
B
BAG
B
Left Side
Right Side
2
1
5x8x0.1mm
Shim
77500266
0.8mm (Silver)
80400206M3x12mm
5x13x4
Shim 5x8x0.1mm-85440090
m2X5mm-87400066
68480156
1.9mm-(Black)
77500266
2.3mm(Brown)
for-Aluminum
Front Spindle Carrier
5X13X4mm zz Ball Bearing
89430020
1
4.8mmx6mm 68430036
Ball Studs
2
Pin 2 x10.8mm-79400016
1
1
2
1
5x10x4mm zz Ball Bearing
89430010
2 x10.8
M3x12mm
68480046
5x10
4.8x6mm
Pin2x9.8mm
2019-68480046
4.8x6mm
68481246
68481256
66401096
68480346
75mm
m2X5mm
M3x12mm
L
Pin2x9.8mm 79400086
Pin2x9.8mm
68481246
2 x10.8mm
5x13
5x10
68480156
1.9mm (Black)
4.8x6mm
68480046 R
op
68480046
R
66401096
68481256
M3x12mm
4.8x6mm
77500266
0.8mm (Silver)
68480346
75mm
m2X5mm
5x8x0.1mm -Shim
3x12mm
77500266
2.3mm-(Brown)
for-Aluminum
Front Spindle Carrier
12x4.2mm
68440090
12x4.2mm
68440090
Shim 5x8x0.1mm
2
1
80400206M3x12mm
Shim 5x8x0.1mm-85440090
m2X5mm-87400066
5X13X4mm zz Ball Bearing
89430020
1
4.8mmx6mm 68430036
Ball Studs
2
Pin 2 x10.8mm-79400016
1
1
2
1
5x10x4mm zz Ball Bearing
89430010
Pin2x9.8mm 79400086
5x8x0.1mm
Shim
Do not over tighten.
Front Hub Carrier Assembly
Front Hub Carrier Assembly

13
B3
Tighten securely.
BAG
B
Apply threadlocker (screw cement)
Suspension Mount Installation-
Sway Bar Installation
Part Bags used.
10
M3X6mm
Set Screw
M3X8mm
77500156
M3X8mm M3X8mm 77500106
C C
Pin3x36.8mm-66430110
2
M2.5X4mm-80400016
M3X8mm-82400026
4
M3X6mm Set Screw-78400026
2
2
2
M3X8mm-80400036
2
Pin 3x52mm-66430370
KIT-66430110 3x36.8mm
OP-79400036 3x36.8mm
68500036
1.95mm
KIT-66430370 3X52mm
OP-79480036 3X52mm
77500106
FF
Note position-77500156
A
CB
M2.5X5.5mm
Do not over tighten.

B4
Note the direction.
11
BAG
B
Part Bags used.
Front Upper Turnbuckle Assembly
Rue-to-scale diagram.
36mm Turnbuckles (Black)
66400346
One side is reverse threaded.
2
66400066
black
KIT-66400346 ( Black)
36mm
One side is reverse
threaded.
31.3mm
31.3mm
" Assemble 2 front links
and 2 steering rod links"
OP-77430016 ( Silver)
OP -23430010
PR Tools Spanner Wrench (4.0mm)
28.2mm
15mm
L
R

15
C1
Tighten securely.
Part Bags used. 12
BAG
C
Apply threadlocker (screw cement)
RF Suspension Mount
REAR HANGER INSERTS
Note: (1) SB401 Plastic Antisquat
Shims=1mm=1Degree.
+1.6 0
TOE SQUAT
+1.6 +0.7
+1.6 -0.7
+1.6 +1.4
+1.6 -0.7
+1.6 0
+1.6 +0.7
+1.6 -1.4
+1.6 0
+1.6 0
+0.8 0
0 0
+2.5 0
+1.6 0
+0.8 0
+3.0 0
+2.5 0
+1.5 0
R-1
R-2
R-3
R-4
R-5
R-6
R-15
R-14
R-13
R-12
R-11
R-10
R-17
R-9
R-8
R-7
R-18
R-16
Numbering
R-19 +3.5 +2
RF RR
Suspension Mount placement direction
ABC
Note position- 77500156
M3X10mm 82400106
2
2
M3X15mm 82400176
M3X10mm 80400046
4
M3X8mm
M3x10mm
M3x15mm
AC B
B-BAG
77500126 (RF)
C
C
68480036
M3X8mm 82400026
2
68480106
M3x15mm
M3x8mm
M3x10mm
M3x10mm

C2
Assemble left and right
sides the same way.
Tighten securely.
Rear Left Hub Carrier Assmebly
13 Part Bags used.
BAG
C
m2.5X4mm 80400016
5x13x4mm zz Ball Bearing
89430020
10x15x4mm zz Ball Bearing
89430030
4
2
2
PIN(2 x 10.8mm) 79400016
2
2
2
2
Shim 5x8x0.1mm 85440090
2
m2X5mm-87400066
2
PIN(3x52mm) 66430370
PIN(2 x 9.8mm) 79400086
PIN(3x36.8mm) 66430110
KIT-66430110 3x36.8mm
OP-79400036 3x36.8mm
M3X8mm 82400026
2
Shim5x8x0.1mm
2.5mm
68410096-65mm 66401096
2 x 9.8mm 10x15x4mm
5x13x4mm zz
77430076 68480056
2 x 10.8mm
M2X5
12x5.2mm
M2.5X4mm
M2.5X4mm
68500046
2.5mm
2.5mm
1.95mm
M3X8mm
1.95mm
77500136-RR
B
AC B
Note position
B
2.5mm 2.5mm

C3
C4
15
14
15
Part Bags used.
BAG
C
BAG
C
Note the direction.
Rear Upper Rod -Turnbuckle Assembly
Sway Bar Installation
Note the direction.
2
36mm Turnbuckles
66400346
66400346
4.8x6mm Ball Studs
68430036
2
68430036
66400066
16.4mm
28.2mm
M3X8mm -80400036
2
M3X8mm
M3X6mm Set Screw-78400026
2
M3X6mm
Set Screw

15
D1
Bell Crank Installation
D2
Steering
4.8x8mm
OP-66402256
OP-66402266
68480036
90410046
90410046
83400026
M3x10mm
00430025
00430025
M3x10mm
00430025
4.8x6mm
M3x10mm
4.8x6mm
4.8x8mm Ball Studs
68430046
2
2
2
1
4.8x6mm Ball Studs
68430036
1
M3 Lock Nut-83400026
M3x10mm 80400046
Silver Aluminum Spacer
3x6.6x1mm-85440310
26.5-27.0mm
3x6.6x1mm
Shim
4.8x8mm
3x6.6x1mm
Shim
OP KIT
83400026
68480036
00430025
2
Steering Knuckle Bushing
3x6mm
Shim 5x8x0.2mm
85440010
5x8x2.5mm Plastic Bearing
66402106
KIT
5x8x2.5mm Plastic Bearing
5X8X0.2mm (1-2pcs)
Shim
2
4
4
OP-66400756
5X8X2.5mm Ball Bearing
BAG
D
BAG
D
90410056 M3x6mm
M3x6mm-80400026
OP-68480526
Part Bags used.

D3
BAG
D
BAG
D
BAG
D
Part Bags used. Must be purchased separately.
Steering Servo
D4
Turnbuckle Assembly-Steering Rod -Servo Rod
M3 Lock Nut
83400026
M3X6mm 80400026
M3X10mm 80400046
M3x10mm 82400106
4
4
1
1
68430036
4.8x6mm
Ball Studs
190410036
KIT
Servo
Installation
Make sure that the servo is centered before
attaching the servo saver horn.
(Refer to your radio manual for more information)
Select the servo saver adapter
matching the servo being used.
Futaba KO JR
66402466
Silver Aluminum Spacer
3x6.6x1mm-85440310
4
3x6.6x1mm
Shim
M3x8mm
m3x10mm
4.8x6mm
m3x6mm
77500056
m3x10mm
77500046
M3 Lock Nu
M3X8mm 82400026
3
66400066
R
L
36mm Turnbuckles
66400346
2
One side is reverse
threaded.
1
8mm
Steening Rod
Servo Rod
Set Screw
M3x20mm
Set Screw M3x20mm
87400086
15.1mm
28.2mm
31.3mm
25T
23T
Install Servo size.
10
49.40-49.50
55
20
40
18.00
14.50
44.50
20
16

D5
Center Mount Plate
BAG
D
BAG
D
Part Bags used. Must be purchased separately.
17
Battery Plate Installation D6
2
M3 x8mm 80400036
10x15x4mm zz Ball Bearing
89430030
66430200
66430200
8
M3x10mm 87400046
1
7mm
1
Shim
M3x8x0.8mm 85440210
2.5x1.5mm oring
55440040
Counterweight 5gx6pcs
Assemble in the
specified order.
M3x8
M3x8
M3x8
90410026
77480076
10x15x4mm
Battery Holder Nut
66481446
2.5x1.5mm oring
M3x16mm Set Screw
M3x8x0.8
Shim
M3x10 90410066
M3x16mm Set Screw
87400036
1
1mm
1mm