KTM ENDURO 640 LC4 - Manual (Page 44)

ENGLISH
43
MAINTENANCE WORK ON CHASSIS AND ENGINE
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Oil and screen filter change, bleeding of the oil system *
Note: The frame breast pipe is integrated into the oil circuit for the sake of
more effectively cooling the motor oil. It is thus important when changing the
oil to also remove the fine screen filter, to drain the motor oil from the breast
pipe and to de-aerate the oil system.
If the oil system is not bled at all or bled insufficiently, the bearings of the
engine will not get enough lubrication, which in turn may result in engine
failure.
Therefore, we recommend that you have the engine oil changed by your
authorized KTM mechanic. During the guaranty period, the oil change must
be performed by an authorized KTM mechanic. Otherwise, the guarantee will
become void.
The engine oil change is to be carried out when the engine is still warm.
AN ENGINE HAVING BEEN RUN WARM, AND THE ENGINE OIL IN IT IS VERY HOT
- DO NOT BURN YOURSELF.
Place the motorcycle on a horizontal surface. Remove the two plugs [13] and
[14], and drain oil into a container.
PLUG [A] MUST NOT BE REMOVED, THIS IS PART OF THE BY-PASS VALVE.
Remove the screws and the cover [15]. Loosen the fine screen filter [6] with
an oil filter wrench and then screw it off by hand.
The screw [16] must be removed to allow the motor oil to flow out of the frame
breast pipe.
Clean the plugs thoroughly with petroleum and compressed air in order to
remove any metal filings. After the oil has drained completely, clean the seal-
ing areas and remount the plugs together with their gaskets. Tighten plug [13]
with 30 Nm and plug [14] with 20 Nm. Tighten the screw [16] with
10 Nm. Clean sealing surfaces on the frame breast pipe [17], fill new fine
screen filter with engine oil, and oil rubber gasket [18]. Replace fine screen
filter and screw it back in place, your bare hand will do.
Remove oil dipstick on the clutch cover, fill with 1.3 litre (0.34 US gallons)
engine oil and attach plug again.
– USE ONLY ORIGINAL KTM FINE SCREEN FILTERS. USING ANOTHER FILTER
BRAND CAN RESULT IN DAMAGE TO THE ENGINE.
– IF THE ENGINE OIL HAS BEEN DRAINED FROM THE FRONT PIPE OF THE
FRAME, YOU MUST BLEED THE OIL SYSTEM!
To facilitate bleeding of the oil system, we have added a hose connection piece
and a plastic hose to the set of tools. Take an empty oil can (1 liter) and drill
a 7 mm (0.28 in) -diameter hole into the lid. Screw the hose connection piece
into the lid from the outside, and secure it from the inside with the M8 hexa-
gon nut.
Slip the plastic hose onto the hose connection piece, and you will have your
filling tool.
13
14
A
17
18
16
15
6