OFNA Racing OB4 RTR - Manual (Page 4)

2mm E-Ring x8
3 x 30mm
Shock Shaft x4
Pressure Top x4
O-Ring (blue) x8
#37070 or 37967
#37751
37080
FILLING THE SHOCK OIL
*Use pliers to snap on
E-Ring.
* Be careful not to damage the shock shaft.
(1mm x1 Hole)
(1.2mm x2 Holes)
* Cut the piston
the plastic parts tree. from
* Pull down piston and pour
oil into shock cylinder.
Remove air bubbles by
slowly moving piston up
and down.
1mm
37070
37967
3mm O-Ring
(2 pcs)
37751
2mm E-Ring
39020
Shock Shaft 37967
Washer
(Black)
37967
C-Ring
* The c-ring must fit into
the groove
.
37100
Piston
(1mm x 2 Holes) 37965
Shock Body, Fnt/Rr
Long Short
or or
Rear Front
Oil
Oil
* The O-Ring must be inserted
into groove.
37966
P12 O-Ring
*Use a little shock oil
to lubricate O-Rings
before screwing on
adjusting nut.
37962
Adjust Nut
(Blue)
37963
Adjust Nut
(Purple)
Oil
37650
4mm
Ball End
Make pair for rear.
1
1
2
3
SHOCK ASSEMBLY
(Long)
37650
4mm
Ball End
Make pair for front.
(Short)
Shock Oil, Silicone
37080
Pressure Top
37100
Ball End
( Large )
37960
Shock Cap
(Blue)
37961
Shock Cap
(Purple)
37100
Spring Holder
* Take the spring holder
the plastic parts tree. from
Shock
Spring Shock
Spring
37100
Spring Holder
Stock Spring; #39010 pair
Optional Spring - 2 pair set
39315, white set
39316, blue set
39317, yellow set
39314, Spring Racer Pack
2 pair white, 2 pair blue, 2 pair yellow
Threaded Shock set
37958, blue
37959, purple
#39020
* Put a little oil
onto the 3mm o-ring
before assembly.
ASSEMBLY OF THE 4MM BALL END
O-ring
TIP
* Use the 1.2mm x 2 hole
piston for this kit.
* 50wt silicone shock
is suggested by racing
team.
BAG
1
Step 1
PARTS USED
( Front ) ( Rear )
• Use same
shock body
for front and
rear units.
39431
Differential
Cap Joint, long x2
37773
37751
Steel Ring x2
M2x10 Screw x4
2mm E-Ring x2
37775
3mmx20mm
Pin x1
BAG
2
Step 4-5
PARTS USED
FRONT DIFFERENTIAL ASSEMBLY
37775
3mmx20mm
Pin
37772
37772
Bevel Gear
10T
Bevel Gear
10T
37772
Bevel Gear
10T x2
37771
Bevel Gear
13T x2
Notice the direction
of the plastic washer.
Notice indent gear pocket,
not for o-ring
*Snap E-Ring onto
Diff. Cap Joint.
37771
Bevel Gear
13T
37773
Steel Ring
39431
Differential
Cap Join, longt
2mm E-Ring
39433
plastic
Washer
39433
plastic
Washer
1.
4.
*Apply diff g grease to the
differential, during assembly.
ear
M2x10 Screw
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 gear differential does not
smoothly,
assemble the gear diff. once again
move
* CHECKING YOUR DIFFERENTIAL ASSEMBLY
*Put the gasket
into groove.
3.
SILIC
ONE OIL
Bevel Gear
Assembly
39434
Gasket
39401
Front Diff.
Case
37776
35T Gear
Diff Pulley
2mm E-Ring
37771
Bevel Gear
13T
37773
Steel Ring
39431
Differential
Cap Joint,
Long
2.
Notice the direction
of the plastic washer.
39432
5x7x1mm
O-Ring
39432
5x7x1mm
O-Ring
39432
5x7x1mm
O-Ring
39432
5x7x1mm
O-Ring
50%
* PUT THE OIL INTO DIFF. CASE ABOUT 50%
USE THE SILICONE DIFF LOCK IN KIT, 30,000wtg.
4 5 ~
G
R
E A
S
E
TIP
Grease all seals
before installing
for a better fit.
FRONT GEAR DIFF IS
LONGER/WIDER THAN REAR
OPTION PARTS:
Hard
(White) Middle
(Yellow) Soft
(Blue)