KTM 640 LC4 Motorcycle User Manual


 
ENGLISH
23
Checking chain tension
To check, jack up the motorcycle on the center stand or frame until it no
longer touches the ground.
Press the chain up approx. 30 mm behind the end of the chain sliding
component. The chain should barely touch the swing arm when the upper
chain part
A is tensioned. If not, correct the chain tension.
ƽ
WARNING
ƽ
–I
F CHAIN TENSION IS TOO GREAT
, PARTS WITHIN THE SECONDARY POWER TRANS-
MISSION (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
. IF 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.
ƽ
WARNING
ƽ
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 (1.28 in)
allows you to use different secondary ratios in combination with the same
chain length. The chain adjusters
4 can be rotated by 180°.
!
CAUTION
!
ALWAYS MOUNT THE CHAIN TENSIONER EQUALLY ALIGNED.
4
1
4
2
3
A