Re: [Amel Yacht Owners] Re: Mainsail outhaul gearbox


Alexandre Uster von Baar
 

Hello Mike,

Here is how I removed the shaft on my vessel.
http://nikimat.com/outhaul_motor_rebuild.html

Thanks for the advice on lobbying the shaft Gary!
If you are still in Puerto Rico, would love to meet you!
I am at the San Juan Nautico Club, but I could rent a car and meet you at Fajardo!

Sincerely, Alexandre
SM2K #289 NIKIMAT
Club Nautico de San Juan, Puerto Rico




--------------------------------------------

On Mon, 6/6/16, amelliahona <no_reply@yahoogroups.com> wrote:

Subject: [Amel Yacht Owners] Re: Mainsail outhaul gearbox
To: amelyachtowners@yahoogroups.com
Date: Monday, June 6, 2016, 6:58 AM


 









Mike:
I feel
for you but I hope you don't make a bad situation worse.
 I pounded on my shaft with a bolt screwed in the bottom
until I thought I would damage the boom and then sought
help.  What is needed was a too that rather easily
"pushed" the shaft upwards.  It was a unique type
of "pusher" as opposed to a "puller".
 I seem to recall a photo of the device somewhere on the
forum.  Basically it is a bar of steel that inserts
transversely thru the opening in the gearbox mounting
bracket that is below the boom.  Shims are placed under it
to bear on the upper surface of the gearbox shaft (the
hollow shaft into which the solid shaft seats and drives
with a woodruff key) and then this is tied with bolts to a
bar parallel to the upper one that is below the gearbox
shaft.  A threaded bold is screwed thru threads in the
lower bar such that as the bolt is screwed in, it pushes up
on the shaft (with a protective piece of metal in place so
as not to damage the shaft end).  Counter pressure is
supplied by the upper bar of steel [basically a puller in
reverse].  A picture would be worth a thousand words here.
 
Please remember
that aluminum remembers every stress and will fatigue fail
if stressed to much from pounding etc.  That is the reason
it is so important to have the pressure on the shaft bear on
the gearbox receptacle shaft (steel) rather than on the
aluminum cover of the gearbox or worse yet on the boom and
its bracket.
WARNING
TO ALL AMEL OWNERS WITH THIESE GEARBOXES, REMOVE AND LUBE
THIS SHAFT YEARLY or suffer the consequences.
Find someone with the right
"pusher".  In my case after I spent hours
pounding, penetrating oiling etc. the mechanic I consulted
had the pusher in his shop and extracted the pin in 10
minutes. 
I wish you
the best, 
Gary S.
Silver Amel SM #335Fajardo, Puerto
Rico   Puerto Del Ray Marina









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