OFNA Racing OB4 RTR User Manual

Page 17

5 x 11mm
Ball Bearing x1

37130

5 x 11mm
Ball Bearing x1

37430

2 x 8.8 Pin x1

5 x 11mm
Ball Bearing

37430

2 x 8.8
Pin

37400

Brake Disc
Mount

38055

39451
2 Speed
Main Shaft

Plastic
Washer

39415

2 x 8.8
Pin

37400

37280
15T Pulley

5 x 11mm
Ball Bearing

37430

Pulley Mount

38050

* Insert the 2x8.8 pin into shaft
and keep the pin in the center of
the pulley.

3 x 10mm
Flat Head
Tapping Screw

38050
Pulley
Mount

39413
Main Shaft
Bearing Bulkhead

3 x 10mm
Flat Head
Tapping Screw x4

ASSEMBLY OF THE MAIN SHAFT

ASSEMBLY OF THE MAIN SHAFT ONTO
CHASSIS

* Insert the rear belt onto
pulley before assembly.

OPTION PARTS: 37943
Alum. Pulley
Mount

OPTION PARTS: 37943
Alum.15T
Pulley

OPTION PARTS: 39464
Alum. Main shaft
ball bearing block

Use the LONGER Disc Mount found in bag #5 or
plastic tree #39415. There may be a similar part that
is shorter and not correct. This is due to the 2-speed
shaft and dual brake configuration.

Figure not shown in Dual
Brake OFNA
configuration!

37400

Do Not Use!

• If assemblied correctly no shims
or spacers are need.

OPTIONAL ASSEMBLY OF THE DUAL BRAKE CAM SHAFT
AND BRAKE DISK

38030
Brake Cam
Shaft

39407
Brake Pad

3 x 15mm
Screw

0.5mm

Leave

39413
Main Shaft
Bulk Head

*Insert brake disk between
two brake pads.

37929
Carbon Brake Disks

3 x 15mm Screw x2