KTM 450 SX - Manual (Page 28)

ENGLISH
27
MAINTENANCE WORK ON CHASSIS AND ENGINE
»
Changing the spring preloading of the shock absorber
The spring preload can be changed by turning the adjusting ring [1]. For this
purpose, you should dismount the shock absorber and clean it thoroughly.
NOTE:
– Before changing the spring preload note down the basic setting, e.g. how
many threads are visible above the adjusting ring.
– One rotation of the adjusting ring [1] changes the spring pretension by
approximately 1.75 mm (0.07 in).
Loosen the clamping screw [2] and use the hook wrench contained in the
vehicle tool set to turn the adjusting ring as desired. Turning it counterclock-
wise will reduce the preload, turning it clockwise will increase the
preload.
After readjusting the clamping screw [2], tighten it to 8 Nm.
ADJUSTMENT VALUES – SPRING PRELOAD A
WP 12187B03 . . . .5 mm (0,2 in)
WP 12187B05 . . . .5 mm (0,2 in)
WP 12187B06 . . .6 mm (0,24 in)
WP 12187B26 . . . .5 mm (0,2 in)
Pivot bearing
The pivot bearing [3] for PDS suspension struts at the swinging fork is Teflon-
coated and must not be lubricated with either grease or other lubricants. Grease
and other lubricants cause the Teflon coat to dissolve, whereby the bearing’s
lifecycle will be reduced dramatically.
When cleaning your bike with a high-pressure cleaner, do not aim the high-
pressure spray directly at the pivot bearing.
A
1
2
MAINTENANCE AND ADJUSTING WORK MARKED WITH AN ASTERISK (*) REQUIRES EXPERT SKILLS AND TECHNICAL KNOW-HOW. FOR YOUR
OWN SAFETY, ALWAYS HAVE SUCH WORK PERFORMED BY A SPECIALIZED KTM DEALER WHERE YOUR MOTORCYCLE WILL BE OPTIMALLY SERV-
ICED BY APPROPRIATELY QUALIFIED, SKILLED STAFF.
– IF USING A POWER WASHER, DO NOT POINT THE WATER JET AT THE ELECTRIC COMPONENTS, PLUGS, CABLES, BEARINGS, CARBURE-
TOR, ETC. THE HIGH PRESSURE WILL CAUSE WATER TO PENETRATE INTO THE COMPONENTS AND CAN CAUSE THEM TO MALFUNCTION
OR LEAD TO PREMATURE WEAR.
– WHEN TRANSPORTING YOUR KTM, ENSURE THAT IT IS HELD UPRIGHT WITH RESTRAINING STRAPS OR OTHER MECHANICAL FASTENING
DEVICES AND THAT THE FUEL TAP IS IN THE OFF POSITION - IF THE MOTORCYCLE SHOULD FALL OVER, NO FUEL CAN LEAK FROM THE
CARBURETOR OR FUEL TANK
– ONLY USE SPECIAL SCREWS WITH AN APPROPRIATE THREAD LENGTH SUPPLIED BY KTM TO FIX THE SPOILERS ON THE TANK. USING
OTHER SCREWS OR LONGER SCREWS CAN CAUSE LEAKS IN THE TANK THROUGH WHICH FUEL CAN FLOW OUT.
– DO NOT USE TOOTHED WASHERS OR SPRING RINGS WITH THE ENGINE FASTENING SCREWS, AS THESE WORK INTO THE FRAME PARTS
AND KEEP WORKING LOOSE. INSTEAD, USE SELF-LOCKING NUTS.
– LET YOUR MOTORCYCLE COOL DOWN BEFORE BEGINNING ANY MAINTENANCE WORK IN ORDER TO AVOID GETTING BURNED.
– DISPOSE OILS, FATTY MATTERS, FILTERS, FUELS, WASHING DETERGENTS ETC. PROPERLY.
– UNDER NO CIRCUMSTANCES MAY USED OIL BE DISPOSED OF IN THE SEWAGE SYSTEM OR IN THE OPEN COUNTRYSIDE. 1 LITER OF USED
OIL CONTAMINATES 1,000,000 LITERS OF WATER.
3