Kyosho Optima Pro 4WD Manual page 25

*When chain is stretched beyond range of
adjustment.
G)
Loosen the 10 screws.
G0 Push bumper rearward t o loo sen chain fully.
Q) Hold the chain with hook pins as shown in
inset drawing.
~ Bend
up the link.
W
Remove one link.
~ Connect
the chain again by bend ing the link
ends down. Readjust t he cha in .
(Bearing)
By employing
of running.
the optiona l ball bearing, you can expect smoother rotation and lpnger duration
Sri>
X
10
Bearing
(4 bearings on the
front shaft 2 each
right and left
sides.)
Fr ont Shaft
._ ___ Knuc kle Arm
Sr/> x 1 0 Bear ing
41/> x 8 Bearing
M 4
W asher
Rear Shaft
~
2S
Gear ---------
Box
(L )
Gear
Sri>
X
10
Bearing
I
o@
In the illustration above, 10 ball bearings
(Sri>
x lOr/> ) a re adopted. Kyosho sells a set
of NO.l901 ball bearings, containing 2 each,
in the ma r ket. So,
S
sets of it are required
for the Optima Pro 4WD.
The ball bearings identified in the left
drawing (4r/> x 81/>) are used in 2 each. A set
of No.l903 ball bearings, containing 2 each,
are available from Kyosho. The Optima Pro
4WD uses one set.
Ring