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Old 24-03-2011, 20:52   #1
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Type 2 linear drive-have you taken one apart?

We had a spare autopilot drive unit stored in plastic.Water got in and now we need to open the unit to see if the water penetrated the unit.It has a Raytheon label but looks exactly like this Raymarine unit.
Raymarine
We extracted two allen screws from the front of the body but cannot get anything else to move.Am I right to think the front cover should come off,and not the rear?Can anyone advise how to proceed?If we get it open will we do any harm if we spray with corrosion block?
Please,only replies from those who have done it.And I already know how to take it to an "expert" thanks.
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Old 25-03-2011, 01:05   #2
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Re: Type 2 linear drive-have you taken one apart?

Yes I have taken one apart, but it was a long time ago so I am not sure I will be much help.
I remember removing the 2 Allen bolts and the case would still not separate. I was about to use some force when I discovered some else I had to undo and it came apart easily.
Trouble is I cannot remember the something else.
If no one else posts a solution I will dismantle the paneling to look at my drive and see if that refreshes my memory.
In the meantime look carefully I am sure there was another bolt or screw.
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Old 25-03-2011, 02:12   #3
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Re: Type 2 linear drive-have you taken one apart?

Thank you,I will skin the Mk1 eyeballs when I look at it tomorrow.
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Old 25-03-2011, 03:30   #4
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Re: Type 2 linear drive-have you taken one apart?

there are two black plastic push pull, rivet like things you have to pull up amd remove, pry center up and they come out. i usually mark end covers remove the long bolts, i think there are a few more bolts, and pull the end off you have to push the brushes in to clear as they are spring loaded, remove and replace, i spray electra motive and clean everything, its kinda messy. i have had mine clogg up with brush dust.
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Old 25-03-2011, 11:20   #5
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Re: Type 2 linear drive-have you taken one apart?

Type 2 drive dissassembly pictures here: Gallery
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Old 25-03-2011, 11:28   #6
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Re: Type 2 linear drive-have you taken one apart?

Brilliant!Thank you very much.
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