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 Scam Mast Tilt Over Advice 
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Post Scam Mast Tilt Over Advice
I need some advice.

I have a Clarke SCAM12 mast which I want to tilt over.

I have designed a mount which uses 2 x U section or RSJs which I will ground mount in a concrete cube. I think that a cube size of approx 1m x 1m x 1m should be OK but I would like to know what other people think, is it to small, to big?

The second thing is that I want to fit an electric winch, I'm to old and tired to consider a hand winch. I see that there are lots of 12v winches on Ebay which state that they are capable of a 4000lb pull. However, none of them mention the current draw but most have a 1.2Kw motor so I guess the current draw will be at least 110amps. That's a lot of juice for something that might only be used 2 or 3 times a year so I thought about a heavy duty battery which I can keep trickle charged.

But, the real question is this, will a 4K lbs pull be good enough to raise and lower the mast, which will only be about 12-15ft long when I want to work on it?

Be really grateful for ideas, please feel free to chip in.

Thanks

Tim


Sun Jan 20, 2019 12:13 pm
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
Id have thought two tons was plenty...my question would be about the concrete block which I consider too small. That size is usually used for the tennamast style whichare a lot lighter than the scam masts. Im surprised you are going this route...id consider selling the scam and buying a proper tilt over, maybe even one of the aluminium ones which I know are good but light.

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Sun Jan 20, 2019 12:23 pm
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
Yes, I would love to sell the SCAM and buy a 'proper' tower but I already have the mast and her indoors wouldn't sanction spending for another mast. As I live in France I don't have quite the same access to secondhand stuff and at 72, going to collect is not a viable option.

I take your point about the base, would not be difficult to make it a tad bigger, 1.5m cube is easily doable.

My plan is to mount the Hexbeam and rotator on the mast and pump it up, lock each section off and then guy it at at least 2 points. If I need to do anything, then I'll drop it one section at a time until I can tilt it to do whatever.

Tim


Sun Jan 20, 2019 12:33 pm
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
The last time I lifted one of these Scam mast was with the aid a pulley...
Still a two man job even with Cam nets and generators running to get it vertical from horizontal.
View the attached image.
Certa Cito


Attachments:
RSRR439.jpg
RSRR439.jpg [ 45.35 KiB | Viewed 1085 times ]

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Sun Jan 20, 2019 1:42 pm
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
If I remember the Scam12 weighs in at 80kgs +/- a bit. Mine is mounted against a wall, on its swivel nest,
with wrap around brackets that I made myself, and guyed to the wall for additional anchorage. Luckily
the swivel nest is in a corner, so theres nowhere for it to slide off too. And the supporting ground is all
concreted.

Get someone to help, I did mine myself, bloody heavy and you need to be able to run, or suffer a
lot of pain if it decides to go wrong.

I too cannot have a proper mast, so the Scam ticks all the boxes.

Phil - G7BZD


Sun Jan 20, 2019 2:55 pm
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
I have a 12v 4 ton electric winch, and use a wheelchair battery on it...think it's only 20 amps though... :blink:

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Sun Jan 20, 2019 5:06 pm
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
hi tim
i run a superwinch 2000 12v winch ,on my versatower but only for elevation .coped with a large log periodic (68kg) .battery drain is pretty high a 110amp liesure battery only lasts around 20mins or 45ft in my case :blush:

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Sun Jan 20, 2019 6:32 pm
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
I have a Scam 12 that I tilt over (picture attached) Mine is in a concrete block that was originally installed for a 3 part box section tenamast. so its about 2ft square and 3.5ft deep never had any issues but I do guy the mast when its at full height as I tend to slightly over load my masts (check out qrz for pictures).

Sorry I cant offer advice on the electric winch as I use a manual one and that more than enough for the times I Tilt it over.

I love the very low retracted height of the scam (but still 12m high) its then fully behind the house cant be seen and is also protected from the wind a bit.

Hope the picture is of use.

Anthony G7LRQ
Attachment:
Scam_sml.jpg
Scam_sml.jpg [ 226.5 KiB | Viewed 1059 times ]

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Sun Jan 20, 2019 6:38 pm
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
Thanks for all the advice, lots to think about there.

Anthony, you have cracked it for me, my design is well over engineered - I never thought about box section.

Tim


Mon Jan 21, 2019 5:17 am
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
I used box section as I already had the Tenamast socket installed in the ground and the 90mm square box section just slides in and can be removed if I ever decide I don't need the Mast any more.

More pictures available if needed.

Anthony

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Mon Jan 21, 2019 6:52 am
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
Hi Tim,
Have a look at this link, They are mostly mobile installs but it may give you some direction or some plans for your installation.

I have the 26m one and have had it on a transit van( No planning Permission) and also wall mounted with 4 T & K brackets


Sun Feb 10, 2019 5:06 pm
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 Scam Mast Tilt Over Advice 
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Post Re: Scam Mast Tilt Over Advice
Depending on your ground, it might be worth considering a base that is 4' square and 2' deep, with a "root" that is 2' square and 3' deep on the bottom of it.
Obviously with steelwork right through and poured in one go.

It can give you more stability with the same amount of concrete that a smaller cube would take.

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Sun Feb 10, 2019 5:17 pm
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