KEEWAY ATV250, Service And Maintenance Manual

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52
Checking of disc brake
Notice
1)
don not touch the liquid with bare hands for a long
time
2) please clean with water and ask for doctors once the
liquid of disc brake spatter into eyes
3) do not let liquid of disc brake spatter onto paint part,
which will cause the painting to drop down, please
clean up with wet cloth if that is this case.
4) Do not clean the parts of disc brake with mineral oil,
such as coal oil, gasoline, diesel oil etc. should clean it
with unused liquid of brake.
5) Do not smooth the parts of brake with mineral oil or
lubricanting oil
6) Because the liquid of brake is easy to absorb
moisture , the liquid of brake would rather be changed
once one year in order to keep the brake good
performance
7) It is need re-install quickly after the brake was taken
apart
8) It is not permitted to wipe the rubbing block with sand
paper because the grain on sand paper can damage the
brake disk
9) It is not permitted to wipe the inner part of caliper and
oil pump with cotton cloth , otherwise the dirty left
will keep there
10) Seal ring,oil plug, rubber bowl. Lever plug ,seal
washer should use new ones
Discharging of oil pump
1) take apart the handle screw, handle
2) put down the dusk cover
3) take apart the hole –spring clip
4) take apart the lever plug
installing the oil pump and taking apart the oil pump
should go in opposite direction
notice:
first the lever plug and rubber bowl should be lubricanted
then put them into the oil pump
taking apart the caliper assy
should put the cover of brake pipe into one holder then
draw out the liquid of brake carfully
1) take apart the bolt. In oil and seal washer
2) break brake pipe, put the open end of throat pipe into
the holder then draw out the liquid
3) take apart the bolt, caliper, brake shoe, spring of brake
shoe
4) take apart oil plug, dusk cover ,oil plug, square seal
ring.
Step of discharging is below:
1) blow the compressed air through the open end of
brake pipe, and push out the oil plug from the caliper.
It is not permitted to prize the oil plug, otherwise it
will damage the surface of oil plug, should cover the
plug with one dishcloth, otherwise it will damage
people when the plug come from caliper
2) taking apart seal washer and dusk cover, do not
damage the surface of inner hole of caliper
the direction of re-installing it is opposite to take apart it
notice: first lubricant the dusk cover.oil plug, then put it
into the caliper
step of letting air out
1) put correct liquid into reservoir
2) setting reservoir washer. Handling carefully, avoiding
that the liquid will spatter or spill over from reservoir
3) please connect the mouth of caliper with one clean
plastic pipe, then put the other end into the caliper
4) start the brake handle many times slowly, draw back
the handle and keep it in one correct position
5) loosen the air mouth and let the handle go to limited
place
6) tighten the air mouth then release handle when handle
reach the limited place
7) repeat the step4 and step 6, till the air bubble
disappear from the system
8) add the liquid to correct level