Pro-Line Boats PRO-Fusion SC 4×4 Instruction Manual

INSTRUCTION MANUAL

INSTRUCTION MANUAL

Thank you for purchasing Pro-Line’s PRO-Fusion SC 4×4! For Over
35 years, Pro-Line has designed and manufactured the best RC
products in the world. This 1:10 scale 4×4 SC truck has been

1:10 4WD SHORT COURSE TRUCK

READY-TO-BUILD KIT

developed from the ground up for extreme performance, durability,
versatility, and most importantly, fun! Thank you for choosing the
PRO-Fusion SC 4×4 and joining Team Pro-Line in making history!

This assembly manual contains instructions for building your
new PRO-Fusion SC 4×4. Please take your time building the kit
according to the instructions and become familiar with the steps.

Equipment Needed

RADIO

ESC

RECEIVER

550 SIZE OR 1:8 SIZE

MOTOR

PRECAUTIONS

CHARGER RC BODY & PAINT

SHORT COURSE

SERVO

(HORNS INCLUDED)

LIPO BATTERY

2S, 3S, OR 4S

TIRES & WHEELS

SC OR 2.8" MT - 17MM HEX

Precautions

To prevent serious personal injury and/or property damage, operate all remotely
controlled models in a responsible manner as described herein.

Choose the right place to operate your RC model:

• Do not run RC vehicles on public streets or highways

• Do not run RC vehicles near people or animals

• Do not run RC vehicles where noise can disturb others

Inspect your vehicle before operation:

• Make sure that all screws and nuts are properly tightened

• Always use fresh batteries in your radio

• Always test the throttle and steering before setting the vehicle on the ground

After operation of your RC vehicle:

• To prevent a runaway, turn off the vehicle fi rst, then the radio

• Replace any battery that has puffed, has been dented, or has frayed wiring

• Keep your vehicle clean and free of excess dirt and debris

• Immediately after use, do not touch any equipment on the vehicle such as the

• Store your vehicle and battery in a place where a fi re cannot spread

Pro-Line is continually improving our products; consequently, actual
parts included in the PRO-Fusion SC 4×4 kit may appear slightly
different than the images that appear in the manual.

motor or ESC, as they could generate high temperatures and cause burns

Recommended Tools

HEX DRIVERS

1.5MM, 2MM, 2.5MM

SERVO TAPE THREAD LOCK

NUT DRIVERS

5.5MM AND 7MM

INCLUDED TOOLS

WHEEL WRENCH

17MM

HEX KEY

3MM

SIDE CUTTERS

WARNING!

This is NOT a toy and is NOT suitable for children under 14 years of age. This RC
vehicle contains many small parts which are potential choking hazards. Keep all
components out of reach of small children.

HEALTH WARNING!

This product contains chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm. This RC vehicle is a high performance
radio controlled model and can cause harm or personal injury. All liquids contained
in this RC vehicle are not to be swallowed. Never touch rotating parts as this can
cause injury.

Help & Information

Installation manuals and videos can be found on our website at

www.prolineracing.com/pro-fusion-sc4x4.

If you need any technical assistance or have questions about your PRO-Fusion,
please submit a Support Ticket at support.prolineracing.com.

2 PRO-LINE RACING / PRO-FUSION SC 4×4 / INSTRUCTION MANUAL

HARDWARE USED

BAG A

× 3

18 × 12 × 4 Bearings

× 6

Large Diff Shim

× 6

8 × 1.5 O-Ring

× 6

4.7 × 0.5 O-Ring

× 6

Diff Drive Pin

Differential Assembly - Build

BAG A

Differential Assembly

BAG A

× 3

18 × 12 × 4 Bearings

× 12

M2.5 × 10 BHCS

× 3

Diff Seal O-Ring

Differential Assembly

Build

Build

Build

(ACTUAL SIZE)

Differential Assembly - Build

3×

× 3

× 6

× 6

× 6

× 6

18 × 12 × 4 Bearings

Large Diff Shim

8 × 1.5 O-Ring

4.7 × 0.5 O-Ring

Diff Drive Pin

1

2

BAG A

Differential Assembly

BAG A

Build

3×

INSTALL DRIVE PIN

FOR CENTER DIFF

(included)

500,000 WT. OIL

Fill to top of
cross pins. Do
not overfi ll!

FRONT & REAR
DIFFS

(included)

BLACK GREASE

Apply liberally
to gears.

HARDWARE USED

(ACTUAL SIZE)

× 3

× 12

18 × 12 × 4 Bearings

M2.5 × 10 BHCS

3

Differential Assembly

BAG A

FOR CENTER DIFF

Use 44T MOD1 spur gear

Build

FOR FRONT & REAR DIFFS

Use 40T MOD1 Straight Bevel Gear

2×

Build

3×

× 3

Diff Seal O-Ring

3

HARDWARE USED

CHASSIS BAG + BAG A

× 5

M4 × 12 FHCS

× 3

M3 × 10 FHCS

× 3

M3 Locknut

Center Diff Mount, Battery Foam & Chassis Braces

CHASSIS BAG + BAG A

× 2

M3 × 10 FHCS

× 4

M3 × 25 SHCS

× 2

18 × 12 × 4 Bearings

× 1

Diff Gear Clip

Center Diff & Steering Posts

BAG B

Front Diff Case Assembly

(ACTUAL SIZE)

× 5

× 3

× 3

M4 × 12 FHCS

M3 × 10 FHCS

M3 Locknut

4

Center Diff Mount, Battery Foam & Chassis Braces

CHASSIS BAG + BAG A

M4 × 12 FHCS x5

M3 × 10 FHCS x3

HARDWARE USED

(ACTUAL SIZE)

× 2

M3 × 10 FHCS

M3 × 25 SHCS

× 4

HARDWARE USED

(ACTUAL SIZE)

× 2

18 × 12 × 4 Bearings

5

6

Center Diff & Steering Posts

CHASSIS BAG + BAG A

THREAD

LOCK

(not included)

Front Diff Case Assembly

BAG B

PRO TIP

Optional HD outdrive clip
included for use with extreme
power. May require snap ring
pliers (not included) to install.

UPPER: B2

LOWER: B1

× 1

Diff Gear Clip

4 PRO-LINE RACING / PRO-FUSION SC 4×4 / INSTRUCTION MANUAL

NOTE ORIENTATION

!

On all hinge pin inserts, align
the large dot pointing towards
the marking on the mount. This
is the stock setting.

HARDWARE USED

BAG B

× 4

M3 × 14 FHCS

Front Diff Case Assembly

BAG B

× 4

M3 × 20 FHCS

× 4

1mm Shim

× 4

2mm Shim

Front Arms & Hinge Pins

BAG C

× 4

Pivot Ball Inserts

× 4

Pivot Ball Set Screws

× 2

18 × 12 × 4 Bearings

× 2

16 × 8 × 5 Bearings

Front Hub & Pivot Balls - Build

+

(ACTUAL SIZE)

Front Diff Case Assembly

× 4

M3 × 14 FHCS

HARDWARE USED

(ACTUAL SIZE)

M3 × 20 FHCS

× 4

7

8

BAG B

B2

B1

Front Arms & Hinge Pins

BAG B

Use long hinge pins

LOWER:

× 4

1mm Shim

× 4

2mm Shim

HARDWARE USED

(ACTUAL SIZE)

× 4

× 4

Pivot Ball Inserts

Pivot Ball Set Screws

9

A1

NOTE ORIENTATION

!

Front Hub & Pivot Balls - Build

BAG C

!

A2

+

L

DO NOT OVERTIGHTEN

UPPER:

Use short hinge pins

1mm 2mm

R

× 2

18 × 12 × 4 Bearings

16 × 8 × 5 Bearings

× 2

PRO TIP

Install using the included 3mm hex key
included with the kit.

18x12x4

16x8x5

5

HARDWARE USED

BAG C

× 2

Drive Pin

× 2

Drive Pin Cup

× 2

M3 Set Screw

× 2

M4 × 16 Modifi ed Set

Screw

Front Axle & Hub Assembly

BAG C

× 6

0.75mm Shim

Pivot Balls to Front Arms

BAG C

× 4

M3 × 10 SHCS

× 4

M3 × 16 SHCS

× 8

M3 Locknut

Steering Plates & Shock Tower

Build

Build

+

Build

+

M3 × 10 SHCS

M3 × 16 SHCS

(ACTUAL SIZE)

Front Axle & Hub Assembly

× 2

Drive Pin

× 2

Drive Pin Cup

× 2

M3 Set Screw

× 2

M4 × 16 Modifi ed Set

Screw

HARDWARE USED

(ACTUAL SIZE)

× 6

0.75mm Shim

10

11

BAG C

3

4

1

Build

Pivot Balls to Front Arms

BAG C

2×

2

+

L

Build

IMPORTANT

!

Ensure driveshaft is seated into outdrive
before screwing pivot balls to arms.
Alternate tightening top and bottom pivot
balls to ensure both are tightened evenly.

R

HARDWARE USED

(ACTUAL SIZE)

× 4

× 8

× 4

M3 × 10 SHCS

M3 × 16 SHCS

M3 Locknut

12

Steering Plates & Shock Tower

BAG C

M3 × 10 SHCS

Build

PRO TIP

Access the pivot
ball through the set
screw using a 2mm
hex driver (not included).

+

L

R

M3 × 16 SHCS

6 PRO-LINE RACING / PRO-FUSION SC 4×4 / INSTRUCTION MANUAL

HARDWARE USED

BAG D

× 4

11 × 5 × 4 Bearing

× 2

M3 Locknut

× 2

M3 × 22 SHCS

× 2

Flanged Bearings

Steering Rack

BAG D

× 2

M3 × 5 FHCS

Steering Rack to Chassis

BAG D

× 2

M3 × 10 FHCS

Front Clip to Chassis

To lower B1 hinge pin holder

(ACTUAL SIZE)

× 4

× 2

× 2

× 2

11 × 5 × 4 Bearing

M3 Locknut

M3 × 22 SHCS

Flanged Bearings

13

Steering Rack

BAG D

Groove inside

PRO TIP

Use included 17mm
wheel nut wrench to
tighten servo saver collar.

DO NOT OVERTIGHTEN

!

Center link should move freely.

HARDWARE USED

(ACTUAL SIZE)

× 2

M3 × 5 FHCS

HARDWARE USED

(ACTUAL SIZE)

× 2

M3 × 10 FHCS

14

15

Steering Rack to Chassis

BAG D

PRO TIP

These chassis plugs can be removed
for easy access to the steering rack
screws without removing the top deck.

Front Clip to Chassis

BAG D

IMPORTANT

!

Ensure short driveshaft is seated
into both front diff and center diff
outdrives before attaching front
clip to chassis.

THREAD

LOCK

(not included)

To lower B1 hinge pin holder

7

HARDWARE USED

BAG D

× 6

M3 × 10 SHCS

Install Top Plate

BAG D

× 4

Long Rod End

× 4

Steering Pivot Balls

Steering Turnbuckle Assembly - Build

BAG D

× 4

M3 × 16 SHCS

× 4

M3 Locknut

Install Steering Turnbuckles

Build

+

(ACTUAL SIZE)

× 6

M3 × 10 SHCS

16

Install Top Plate

BAG D

THREAD

LOCK

(not included)

HARDWARE USED

(ACTUAL SIZE)

× 4

× 4

Long Rod End

Steering Pivot Balls

HARDWARE USED

(ACTUAL SIZE)

× 4

M3 × 16 SHCS

17

18

Steering Turnbuckle Assembly - Build

BAG D

Step 1

Step 2

Step 3

Install Steering Turnbuckles

BAG D

+

L

Build

R

(actual size)

22mm

(actual size)

2×

× 4

M3 Locknut

8 PRO-LINE RACING / PRO-FUSION SC 4×4 / INSTRUCTION MANUAL

NOTE ORIENTATION

!

Orient the notch to the right
throughout the kit.