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to change the main gear on a Belt CP quickly & easily
We have probably all had to change
a main gear on the Esky Belt CP, for as we all know they are made of ridiculously soft
plastic and the teeth strip at the slightest provocation.
The easiest and quickest way to do
this is as follows.
1- Remove the main blades
2 - Unclip the connecting rods to
the swash plate at the swash plate.
3 - Undo the retaining bolt at the
bottom of the mainshaft directly underneath the two gears, taking care
not to loose the nut on the other side, which is NOT fixed in the
plastic of the gear.
4 - Gently but firmly pull the
head and mainshaft upwards until the mainshaft is clear of the main
gear. You will probably have to pull the anti rotation pin out of
the anti rotation bracket by gently bending the plastic bracket
5 - Slide the pair of gears out of
6 - Pull the main gear off the
tail drive gear.
7 - Replace it with your new main
8 - Push the pair of gears back
into the frame gently but firmly, and position them so that the
mainshaft can be pushed down through them again.
9 - Push the mainshaft fully down
through the gears and into the bottom bearing. Don't forget to replace
the anti rotation pin into the bracket the same way as you took it out.
10 - Rotate the main gear until
the hole for the bolt is visible from the side.
11 - Rotate the mainshaft until
you see the hole in it for the retaining bolt, and push the bolt
in. You may have to use your hex driver and screw it in for it to
go all the way through.
12 - Ensure you have the nut on
the other side and tighten up as hard as you reasonably can.
13 - Reconnect the connecting rods
to the swash plate.
14 - Refit the main blades.
JOB DONE - Average
time is about 15 minutes maximum.
HINT - Search
the web for the Helimax 400 main gear or the Blade 400 main gear or the
Interceptor 400 main gear. These are all direct replacements for
the Esky part, but are much stronger and far longer lasting.