Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 29-11-2015, 09:35   #1
Registered User
 
Blue Crab's Avatar

Join Date: Sep 2009
Location: Hurricane Highway
Boat: Cal 29
Posts: 3,883
Getting Hub off AirX

I tied off the gen and forgot about it for awhile, By the time I got back to it the small synthetic line had disintegrated and wrapped around the hub. I was able to unwind a lot of it but apparently not all as blades won't spin. Bearings good. So I got my skyhook out, stuck a 5/16" allen wrench in hub and tried to back the hub out enough to free the blades.

No joy. I made 3-4 trips "aloft" using first, a breaker bar, then a breaker and cheater.

This very morning I rigged my scuba tank to my impact wrench, again risking my life and providing potential entertainment to onlookers, but still no joy. It was tough getting the tank that high; maybe I'll use a hose next time.

Suggestions? All I'm after is to loosen the hub enuff to pull the strings out. I've read the directions more than once. When I did the rebearing job 2 yrs back I used a torque wrench, not the impacter. The allen wrench goes into the main shaft with the 5/8" nut around it but there is no way to get anything on that nut.

Hopefully I'm making a dumb mistake. Wouldn't be the first time.
__________________

__________________
Blue Crab is offline   Reply With Quote
Old 29-11-2015, 09:40   #2
Guy
Registered User

Join Date: Feb 2013
Location: So. Oregon, USA
Boat: Seafarer36c
Posts: 4,308
Re: Getting Hub off AirX

Put the allen wrench in the shaft and loosen the nut in the hub by turning the blades.
__________________

__________________
Guy is offline   Reply With Quote
Old 29-11-2015, 10:18   #3
Senior Cruiser
 
senormechanico's Avatar

Cruisers Forum Supporter

Join Date: Aug 2003
Boat: Dragonfly 1000 trimaran
Posts: 5,832
Re: Getting Hub off AirX

Guy, the blades won't spin.
Blue,
Try a blast of heat on the allen screw. Propane torch for 20 seconds or so ought to do it.
__________________
Memento,homo, quia pulvis es, et in pulverem reverteris.
senormechanico is offline   Reply With Quote
Old 29-11-2015, 13:51   #4
Registered User
 
Blue Crab's Avatar

Join Date: Sep 2009
Location: Hurricane Highway
Boat: Cal 29
Posts: 3,883
Re: Getting Hub off AirX

The blades turn by hand but not quite by air. I wasn't. Clear. Ive lost a lot of strength but the impact hasn't and I was holding the hub.

Propane torch to it tomorrow.
__________________
Blue Crab is offline   Reply With Quote
Old 29-11-2015, 14:26   #5
Guy
Registered User

Join Date: Feb 2013
Location: So. Oregon, USA
Boat: Seafarer36c
Posts: 4,308
Re: Getting Hub off AirX

One more idea, you are turning the shaft backwards to loosen right? Not righty tighty but righty lucy.
__________________
Guy is offline   Reply With Quote
Old 29-11-2015, 14:53   #6
Registered User
 
sy_gilana's Avatar

Join Date: Jan 2005
Location: On board
Boat: Van de Stadt 50'
Posts: 1,101
Send a message via Skype™ to sy_gilana
Re: Getting Hub off AirX

If you followed the instructions last time you put Loctite on the threads.

It needs heat to release it.
__________________
Tight sheets to ya.
http://gilana.org
sy_gilana is offline   Reply With Quote
Old 29-11-2015, 15:51   #7
Registered User
 
Blue Crab's Avatar

Join Date: Sep 2009
Location: Hurricane Highway
Boat: Cal 29
Posts: 3,883
pirate Re: Getting Hub off AirX

Quote:
Originally Posted by Guy View Post
One more idea, you are turning the shaft backwards to loosen right? Not righty tighty but righty lucy.

I dunno. I had that thought too so I hammered it the other way just in case. I did use locktite so I'll warm it up manana weather permitting.

Thx
__________________
Blue Crab is offline   Reply With Quote
Old 30-11-2015, 08:24   #8
Guy
Registered User

Join Date: Feb 2013
Location: So. Oregon, USA
Boat: Seafarer36c
Posts: 4,308
Re: Getting Hub off AirX

Quote:
Originally Posted by Blue Crab View Post
I dunno. I had that thought too so I hammered it the other way just in case. I did use locktite so I'll warm it up manana weather permitting.

Thx
I did not put that correctly. It's not that it has left hand threads but if you are unscrewing the shaft from the hub, you turn the shaft to the right to undo it from the hub. If you are undoing the hub, then it turns left to unscrew from the shaft. This was probably clear to you but I had to think a bit when I did it.
__________________
Guy is offline   Reply With Quote
Old 30-11-2015, 08:42   #9
Registered User

Join Date: Mar 2009
Posts: 213
Re: Getting Hub off AirX

Heat is not needed nor is it a good idea.

Guy has it right.When you put the Allen wrench on the nut you are on the end of the shaft.You hold the shaft stationary and turn the hub off in a counter-clockwise direction.

Being me, I made a tool that fits into the machined boss of the hub where a blade goes and gives you a decent handle to turn the hub off without damage. You may need something like this if it has been together for a time. Just take off a blade and use the blade to get the bolt pattern of the hub. Make it from a piece of flat stock, no machining, maybe a little filing and drill a couple of holes.

Using the impact is a good way to seriously cut the bearing life and gets you nothing much at all.

What’s so hard about unbolting the bottom of the mounting brackets and dropping the generator down into the boat?
__________________
um saudade is offline   Reply With Quote
Old 30-11-2015, 09:29   #10
Registered User
 
Blue Crab's Avatar

Join Date: Sep 2009
Location: Hurricane Highway
Boat: Cal 29
Posts: 3,883
Re: Getting Hub off AirX

Well ya got me there. This was supposed to be a 5 min job, ya know. I now realize the impact wasn't the best plan.
__________________

__________________
Blue Crab is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Installimg and using my new 400 watt Airx Wind Generator on my Hunter 30 Tom ONeill Electrical: Batteries, Generators & Solar 2 08-01-2012 05:46
AirX Goes Slowly ! S Y Tuppenny Electrical: Batteries, Generators & Solar 13 07-03-2011 22:41
New AirX 400 Watt Generators $580 johnar Electrical: Batteries, Generators & Solar 2 07-01-2010 21:35
Opinions Needed: Used KISS vs New AirX brianontheroad Electrical: Batteries, Generators & Solar 10 29-11-2009 09:57



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 05:52.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.