KTM 640 LC4 Adventure, Owner'S Manual

Page: 26 / 59

ENGLISH
25
Checking chain tension
Support the motorcycle on the center stand or side stand, respectively.
Switch transmission to neutral.
Push the chain upwards appr. 30 mm (1,2 in) from the end of the chain sliding
component until the upper part of the chain is tensioned (see illustr.)
Now, the distance
A
between chain and swingarm should be 0 mm. The
upper part of the chain
B
must be tight (see illustr.).
Correct chain tension, if necessary!
WARNING
– I
F CHAIN TENSION IS TOO GREAT
,
PARTS WITHIN THE SECONDARY POWER
TRANSMISSION
(
CHAIN
,
CHAIN SPROCKETS
,
TRANSMISSION AND REAR WHEEL
BEARINGS
)
WILL BE SUBJECTED TO UNNECESSARY STRESS
,
RESULTING IN PREMATURE
WEAR AND EVEN CHAIN BREAKAGE
.
– T
OO MUCH SLACK IN THE CHAIN
,
ON THE OTHER HAND
,
CAN RESULT IN THE CHAIN
JUMPING OFF THE CHAIN WHEELS
. I
F THIS HAPPENS
,
THE CHAIN COULD ALSO BLOCK
THE REAR WHEEL OR DAMAGE THE ENGINE
.
– I
N EITHER CASE THE OPERATOR IS LIKELY TO LOSE CONTROL OF THE MOTORCYCLE
.
Correct chain tension
Loosen collar nut 1 , loosen counter nuts 2 , and turn right and left
adjusting screws 3 equally far. Tighten counter nuts 2 .
Before tightening the wheel spindle, verify that the chain adjusters 4 are
sitting close to the adjusting screws and that the rear wheel has been
aligned with the front wheel.
Tighten collar nut
1 with 80 Nm (59 ft.lb).
WARNING
I
F YOU DON
’
T HAPPEN TO HAVE A TORQUE WRENCH AT HAND
,
MAKE SURE YOU HAVE
THE TIGHTENING TORQUE CORRECTED BY A
KTM
DEALER AS SOON AS POSSIBLE
. A
LOOSE AXLE MAY LEAD TO AN UNSTABLE DRIVING BEHAVIOR OF YOUR MOTORCYCLE
.
NOTE:
The large adjusting range of the chain adjusters (32mm) allows you to use
different secondary ratios in combination with the same chain length. The
chain adjusters
4
can be rotated by 180°.
!
CAUTION
!
A
LWAYS MOUNT THE CHAIN TENSIONER EQUALLY ALIGNED
.
A
B
15:45
16:42 A = 0 mm
17:42
30mm
4
2
3
4
1