PR RACING SB401 User manual

WARNING!
Thank you for purchasing this PR product. This kit is not a toy! It will require periodic maintenance & effort to keep it in top
running condition. There are many extremely dangerous moving parts, such as the metal gears, motors and etc. Coming in
contact with these during operation of the car may cause serious injury! Always check your radio operation system before
running the car. Always switch off the car first before turning off the radio to avoid losing control. Safe operation will ensure
great fun and enjoyment.
1/10 ELECTRIC 4WD OFF ROAD BUGGY
www.pr-rc.com
L W

PR Racing introduces the SB401 10th scale Competition off road Buggy Pro Kit.
Front suspension is equipped advanced steering block and upright to improve
steering reaction and fluency, carbon fiber front and rear shock tower plate provide
durability and suspension rigidity. Kit contains strengthened parts and various
allocation to achieve the biggest track applicability.
This all new off road Buggy comes with Weight bias changeable design,
by using either the front motor configuration with a saddle pack or the rear motor
configuration with a shorty pack(All parts in one Kit). This allows the SB401 extremely
adaptable to any track condition.
PR Racing’s shock absorber always comes with quality and good design.
With a bore of 12.75mm the PR Racing Shocks is the biggest competition level
shocks in the market at this time.
Rear shock can be set to two location(in front of rear sus-arm or at rear).
With different setting, rear shock will provide enhanced driving sense and stability.
This function also allows the vehicle to soak up a wide variety for terrains and track
surfaces without losing speed. PR Racing offers a wide range (4 variations) of shock
pistons, these allow drivers to fine tune the damping
of the vehicle according track condition.
SB401 is equipped CNC bevel & drive pinion gear(39T/15T) both in front and
rear differential, those CNC gears are durable, heavy duty and works well. Differential
Gear Case whether in front or rear end, can be disassembled quickly
and easy to maintain or change.
Quality can be found throughout in the SB401 kit. All parts in the kits is made from
composites or aluminum materials. The SB401 Chassis is produced with high grade
CNC Hard anodized aluminum.
If you’re looking for a competitive and very versatile
10th scale 4wd off road Buggy, then look no further than the
PR Racing SB401 4wd off road Buggy.
PR Racing SB401 1/10 Electric 4WD Off Road Buggy

• Metric 1.5mm, 2.0mm hex tools
• Metric 5.5mm, 7.0mm Nut Driver
• 2 Channel Surface Radio System (Minimum)
• 1/10 ESC, Motor & Pinion Gear
• High Speed Servo
• 2S LiPo Battery & Compatible Lipo Charger
• Polycarbonate Paint for Bodies
• 1/10 Truck Tires, inserts and CA Glu
PR Racing SB401 1/10 Electric 4WD Off Road Buggy
Specifications
Items required to complete
• Motor: Electric
• Wheelbase: 284mm
• 12 degree chassis Kick up
(Adjustment range:20 degree)
• All Metric Hardware
• Full Precision Ball Bearings
• completion option in the same kit
• Same Front and Rear Wheels
(14mm Hex)(12mm Hex)
• 77 tooth(differential) spur gear
• Drivetrain: 4wd
• Motor or Engine: Accepts 540 size
• New motor mount can change
motor position easily (front or rear)
• Tooth Gear Pitch: 48 Pitch
• Kit/RTR: Kit
• Shock Type: Oil Filled Aluminum
Shocks
• with bladders
• Body: Unpainted clear body
with over spray
• CNC aluminum one-piece
motor mount
• CVD bones x6
• Width:248mm
• Weight:1785g(weight varies with
choice of electronics, tires & body)
• Length:284mm
• Gear Ratio:2.6:1
• 7.4V/4000-6000mAh approx
• Minimum Age Recommendation
: 14 years
• Silicon diff oil
• LOK threadlocker

Deploy
Shorty Battery
The way of Motor furnishings, you can choose in two ways(Front&Rear).
在馬達擺設方式,可以選擇前置與後置兩種。
OR

Deploy
Shorty Battery
In Mid Drivetrain system can choose Differential and Gear Diff two ways.
(It will cost extra if ones choose differential drivetrain.)
在中置傳動系統可選擇紐線與齒輪差速兩種
(選擇紐線傳動要另外購買)
。
OR
OR
Gear Diff
Slipper

Deploy
Shorty Battery
The way of Servo furnishings, you can choose left & right.
在伺服機擺設方式,可選擇左邊與右邊。
OR
OR
Gear Diff
Slipper
OR

Deploy
Shorty Battery
The Rear suspension’s furnishings place, with different features of place,
can choose to put Front & Rear. (If you choose Rear, wings have to be cut.)
在後避震器的擺設位置,因應不同場地特性,可選擇擺設置前方與後方。
(如選擇後方,尾翼必須裁剪)
OR
OR
Gear Diff
Slipper
OR
OR

Deploy
Shorty Battery
The selection of battery, can choose in two ways
(Shorty battery & saddle battery.)
在電池選擇上,可以選擇短版電池與分置電池兩種。
Gear Diff
Shorty Battery
Saddle Battery
OR

Deploy
In Hexagonal Wheel Stand, can choose 12mm or 14mm.
在六角輪座可選擇12mm或14mm。
OR
12mm
14mm

01
04-10
Front&Rear Differential
Chassis Guard Installation
Center Diff
Front Central Transmission
Rear Central Transmission
Front Assembly
Front Spindle(Left Side)
Front Spindle(Right Side)
Front Suspension
11-14
Rear Assembly
RearSuspension
15-17
Steering
Steering Servo
Body Mounts
Gear Piff Assembly
Top Deck Buid
18-23
Shock Assembly
Shock Spring
Front Suspension
Rear Suspension
Motor
Battery Cradle
Wheels
Body Mounting
Body Shell
24-30
31
33-36
EXPLOSION PICTURE 32

  
 





 
 





















 
 











03
Deploy
Before assembling, please choose the battery type(Shorty battery/Saddle battery),
it will impact the assemble way!!
在組裝前,請先選擇好電池種纇(短版電池/分置電池),將會影響組裝方式。
Shorty Battery
Saddle Battery
OR

A4
04
Side Plate
A1
 

M3X6mm Flat Head Hex Screw
2
M2.6X6mm Flat Head Hex Screw
12
Shortly Battery
M2.6x6mm
82400096
M3X6mm
82400016
68480116
68400016
68480426
68480116
M2.6x6mm
82400096
M2.6x6mm
82400096
PR SB401-lw

05 
Front&Rear Differential
A
 



31450016
O-ring
66480346
68480596
66481106
66480336
82400066
66480346
66480346
85440160
66480336
66480356
66480336
85440160
請照順序對角鎖緊差速上蓋螺絲
1 3 4
→
1 2 3 4
→
5X8x0.8mm Washer
4
1
34
2
2
→
→
SILICON DIFF OIL ＃5000
將差速油注入差速殼內至8分滿
4X10x0.25mm Washer
According to the different
track, you can choose to use
2 gears or4 gears

06
Center Diff
A3


PR SB401-lw
68480276
M3x8mm
82400026
2x7.8mm
79400096
M3x3mm
87400016
68480766
66400786(10x15x4mm)
組裝培林座時連同培林一起組裝
please install bearing hub with bearing.
1.4X10mm
68480196
68480776
2x11mm
79400016
68480186
66480306
68480266
2x11mm
79400016
66400786(10x15x4mm)
68400216(81t)
1~1.5mm
M3X3mm Set Screw
1
M3X8mm Flat Head Hex Screw
1

07
Front Central Transmission
A
 

66401096
68480066
M3X10mm
80400046
66400786
10x15x4mm Ball Bearing
68480336
71400286(59mm)
68480876(15T)
66400766
5x10x4mm Ball Bearing
68480066
79400066(9.8mm)
78400016
M4X3mm
68480326
66400766
5x10x4mm Ball Bearing
66400786
10x15x4mm Ball Bearing
5X8X0.1
85440090
請依照間隙鬆緊,墊二至三片墊片
Please add2~3 washers according
to the tighthess of the gap.
10X12.5X0.1
85440230
76480016-3mm
68480086-4mm
M3X10mm
80400046
10X12.5X0.1
85440230
M3X10mm
80400046
5x10x4mm Ball Bearing
2
2
10x15x4mm Ball Bearing
M4X3mm Set Screw
1
M3X10mm Button Head Hex Screw
6
Shortly Battery
↙
Front
組裝時請注意齒輪方向
Please notice the direction
of gear.
！
Front
59
mm
Light Weight-7075
"Please inspect the condition of this
light weight component regularly"

08
Front Central Transmission
A4
 
76480016-3mm
68480086-4mm
M3X10mm
80400046
M3X10mm
80400046
2
5x10x4mm Ball Bearing
2
10x15x4mm Ball Bearing
M4X3mm Set Screw
1
M3X10mm Button Head Hex Screw
6
68480326
66400766
5x10x4mm Ball Bearing
78400016
M4X3mm
66401096
68480336
79400066(9.8mm)
66400776
5x10x4mm Ball Bearing
68480066
71400256(81mm)
66400786
10x15x4mm Ball Bearing
68480876(15T)
66400786
10x15x4mm Ball Bearing
M3X10mm
80400046
10X12.5X0.1
85440230
10X12.5X0.1
85440230
68480066
5X8X0.1
85440090
請依照間隙鬆緊,墊二至三片墊片
Please add2~3 washers according
to the tighthess of the gap.
Saddle Battery
↙
Front
組裝時請注意齒輪方向
Please notice the direction
of gear.
！
PR SB401-lw
81 mm
Front
Light Weight-7075
"Please inspect the condition of this
light weight component regularly"

09
Rear Central Transmission
A
Rear
68480576(15T)
66400786
10x15x4mm Ball Bearing
66400766
5x10x4mm Ball Bearing
68480066
68480066
66400766
5x10x4mm Ball Bearing
71400266(89mm)
79400066(9.8mm)
66401096
68480326
68480336
78400016
M4X3mm
M3X10mm
80400046
10X12.5X0.1
85440230
10X12.5X0.1
85440230
Please add it or not
according to the loose-tight.
66400786
10x15x4mm Ball Bearing
5X8X0.1
85440090
請依照間隙鬆緊,墊二至三片墊片
Please add2~3 washers according
to the tighthess of the gap.
M3X10mm
80400046
76480026-3mm
5x10x4mm Ball Bearing
2
10x15x4mm Ball Bearing
2
M4X3mm Set Screw
1
6
M3X10mm Button Head Hex Screw
Shortly Battery
↙
Front
組裝時請注意齒輪方向
Please notice the direction
of gear.
！
76480026-4mm
 

89 mm

BAG
B
10
Rear Central Transmission
A5
Rear
 
PR SB401-lw
M3X10mm
80400046
76480026-3mm
76480036-4mm
5x10x4mm Ball Bearing
2
10x15x4mm Ball Bearing
2
M4X3mm Set Screw
1
M3X10mm Button Head Hex Screw
6
71400246(68mm)
79400066(9.8mm)
66400766
5x10x4mm Ball Bearing
68480066
66400786
10x15x4mm Ball Bearing
66400786
10x15x4mm Ball Bearing
M3X10mm
80400046
68480066
68480876(15T)
M4X3mm
86480016
68480336
66400776
5x10x4mm Ball Bearing
68480326
66401096
10X12.5X0.1
85440230
10X12.5X0.1
85440230
5X8X0.1
85440090
請依照間隙鬆緊,墊二至三片墊片
Please add2~3 washers according
to the tighthess of the gap.
Saddle Battery
↙
Front
組裝時請注意齒輪方向
Please notice the direction
of gear.
！
68 mm
76480026-4mm
OR
Light Weight-7075
Please inspect the loss of the
competition product regularly.

BAG
B
11
Front Assembly

 
M3X6mm
82400016
68480176(RF)
M3X10mm
82400106
M3X14mm
82400046
M2.6X16mm
82480016
M3X10mm Flat Head Hex Screw
2
M3X14mm Flat Head Hex Screw
2
M2.6X16mm Flat Head Hex Screw
2
M3X6mm Flat Head Hex Screw
2
