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Bag 3, Parts used, Rear differential assembly – OFNA Racing OB4 RTR User Manual

Page 7: Assembly of the front arm block, Checking your differential assembly, Assembly of the front block onto chassis, Step 6~15

background image

37773

Steel Ring

REAR DIFFERENTIAL ASSEMBLY

37774

Differential
Cap Joint

39402

35T
Diff Pulley
Case

2mm E-Ring

37771

Bevel Gear
13T

*Snap E-Ring onto Diff Cap Joint.

37774

Differential
Cap Joint

37773
Steel Ring

35T
Diff Pulley

*Apply diff g

grease to the

differential, during assembly.

ear

SILICONE
OIL

ASSEMBLY OF THE FRONT ARM BLOCK

39050
Front Arm Block
( Left )

37450
10 x 15mm
Ball bearing

37450
10 x 15mm
Ball bearing

39050
Front Arm Block
( Right )

39050
Front Belt Tension
Adjuster

39050
Front Belt Tension
Adjuster

* Both-side of the belt tension adjuster
must be place in the same position.
Position No.7or 8 is standard position.

1

2

3

4

5

6 7 8 9

10

11

12

13

Looser

Tighter

1

2

3

4

5

6

8

9

10

11

12

13

* CHECKING YOUR DIFFERENTIAL ASSEMBLY

To test the effectiveness of the gear differential
hold the gear tightly with one hand and turn
one cap joint.
Does the other cap joint move in the opposite
direction and smoothly?
If the gear differential does not

smoothly,

assemble the gear diff. once again

move

37773

37751

Steel Ring x2

M2x10 Screw x4

2mm E-Ring x2

37774

Differential
Cap Joint, short x2

37772

Bevel Gear
10T x2

37775

3mmx20mm
Pin x1

37771

Bevel Gear
13T x2

M2x10 Screw

39434
Gasket

5

6

BAG
3

Step 6~15

PARTS USED

6

15

~

39432
5x7x1mm
O-Ring

39432
5x7x1mm
O-Ring

Bevel Gear
13T

37776

37772

Bevel Gear
10T

37775

3mmx20mm
Pin

37771

2mm E-Ring

37772

Bevel Gear
10T

TIP
Grease all seals
before installing
for a better fit.

GREASE

1

1

2

2

3

3

4

4

5

5

6

6 7

7 8

8 99

10

10

11

11

12

12

13

13

7 7

7

7

3 x 10mm
Flat Head
Tapping Screw x4

Front ball Diff. Assembly

8

8

ASSEMBLY OF THE FRONT BLOCK ONTO CHASSIS

3 x 10mm
Flat Head
Tapping Screw

39420
Chassis
( Hard Coated)

* Insert the belt
before assembly.

38140
384 Belt

39050
Front Arm Block
( Right )

Front Arm Block
( Left )

*Notice the position of
the differential.

Short

Long

OPTION PARTS: 39460
Front Ball Differential

ASSEMBLY OF THE FRONT ARM BLOCK

OPTION PARTS: 34961 - Rear Ball
Differential

39050

39458 Complete,

PARTS USED

OPTION PARTS: 39471
Alum. Suspension arm
Block (Front)

37480 35T Pulley (Ball Type)
37110 Diff. Washer
37120 1/8" Ball (12 Pcs)
37130 1/16" Ball (9 Pcs)
37130 Diff Trust Washer
37140 Cap Joint, front (l/s)
37141 Cap Joint, rear (s/s)
35958 5x8mm Ballbearing
37131 2.6x4.5 Spring Washer
37131 2.6x25mm Screw

Ball Diff Rebuild Parts:

37140 (L)

37140 (S)

37141 (S)

37141 (S)

Important