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General informations about KTM disc brakes
BRAKE CALIPERS (LC4):
The brake calipers of this series “float“. This means that the brake calipers
are not solidly attached to the caliper support. Thus, the brake pads are
always in optimum contact with the brake disc. Secure the screws of the
caliper support with Loctite 243 and tighten to 25 Nm.
BRAKE CALIPERS (LC4 SUPERMOTO):
The front brake caliper
1 has 4 brake pistons and is rigidly connected to
the fork leg. The rear brake caliper has one brake piston and "floats", which
means that it is not rigidly connected to the brake caliper support. The
resulting lateral adjustment ensures that the brake pads
2 optimally rest
against the brake disk at any time. Secure the screws
3 of the caliper
support with Loctite 243 and tighten to 40 Nm.
BRAKE PADS:
The motorcycles are delivered with organic brake pads and have also been
type-coded with these pads. Said pads are suitable for almost the entire
range of application of these motorcycles.It is only for competitive racing in
extremely dirty conditions (e.g., water in combination with sand and mud)
that we recommend brake pads that have sintered linings. However, take
notice of the fact that brake pads with sintered linings have not been type
coded! Besides, they may cause greater wear on the brake discs.
ƽ
WARNING
ƽ
B
RAKE PADS AVAILABLE IN THE ACCESSORY TRADE ARE OFTEN NOT AUTHORIZED FOR
OPERATION OF YOUR
KTM MOTORCYCLE IN ROAD TRAFFIC
. THE BRAKE PADS DESIGN
AND FRICTION FACTOR AND THEREFORE THE BRAKING POWER CAN DEVIATE
SIGNIFICANTLY FROM ORIGINAL
KTM BRAKE PADS. IF YOU USE DIFFERENT BRAKE PADS
THAN THOSE PROVIDED WITH THE ORIGINAL EQUIPMENT
, IT CANNOT BE WARRANTED
THAT THEY ARE AUTHORIZED FOR USE IN ROAD TRAFFIC
. Y
OUR MOTORCYCLE WILL NOT
LONGER COMPLY WITH THE REGULATIONS AUTHORIZING THE USE OF VEHICLES FOR
ROAD TRAFFIC AND THE WARRANTY WILL BE VOID
.
BRAKE FLUID:
KTM fills the brake systems with „Motorex Brake Fluid DOT 5.1“ brake
fluid, one of the best brake fluids that is currently available. We recommend
that you continue to use it. DOT 5.1 brake fluid is based on glycol ether
and of an amber color. If you do not have any DOT 5.1 for refilling, you
may use DOT 4 brake fluid. However, you should replace it as soon as
possible by DOT 5.1.
Never use DOT 5 braking fluid. It is based on silicone oil and has a purple
color. Gaskets and brake hoses are not compatible with it.
ƽ
WARNING
ƽ
H
AVE THE BRAKE FLUID CHANGED AT LEAST ONCE ANNUALLY. IF YOU WASH YOUR
MOTORCYCLE OFTEN
, THE BRAKE FLUID SHOULD BE CHANGED EVEN MORE FREQUENTLY.
BRAKE FLUID TENDS TO ABSORB WATER
. T
HEREFORE
, VAPOR POCKETS MAY FORM IN
"OLD" BRAKE FLUIDS EVEN AT LOW TEMPERATURES, CAUSING THE BRAKE SYSTEM TO
FAIL
.
BRAKE FLUID RESERVOIRS:
The brake fluid reservoirs on the front and rear wheel brakes have been
designed in such a way that even if the brake pads are worn it is not
necessary to top up the brake fluid. If the brake fluid level drops below the
minimum either the brake system has a leak or the brake pads are
completely worn down. In this case, consult an authorized KTM dealer
immediately.
BRAKE DISCS:
Wear reduces the thickness of the brake disc in the area of contact
4 with
the brake pads. At its thinnest spot
A, the brake disc must not be more
than 0.4mm thinner than its nominal dimension
B. The nominal dimension
can be gaged in a location beyond the area of contact with the brake pads.
Check wear in several spots.
ƽ
WARNING
ƽ
–B
RAKE DISCS SUFFERING FROM WEAR GREATER THAN 0.4 MM CONSTITUTE A SAFETY
HAZARD
. HAVE THE BRAKE DISC REPLACED IMMEDIATELY AS SOON AS IT REACHES ITS
WEAR LIMIT
.
–A
SAMATTER OF PRINCIPLE, HAVE ANY REPAIR OF THE BRAKE SYSTEM CARRIED OUT
BY A LICENSED
KTM MECHANIC.
DOT
5.1
DOT
5
✓
✕
A
B
4
1
2
3
LC4
LC4 SUPERMOTO