Heavy Recovery Rotator

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astecme
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Re: Heavy Recovery Rotator

Post by astecme » Wed Nov 29, 2017 5:28 pm

OMG its only all working!






Hmm, spoke too soon the jib return seems to have broken!
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Re: Heavy Recovery Rotator

Post by astecme » Wed Nov 29, 2017 5:29 pm

So, Stripped the crane (again) . The cable had popped off the bottom pulleys. I think because the stainles "super flexible" trace line was too stif. So I already had had my suspicions and had purchased some stuff that beaders use, super flexible 49 strand extra strong coated beading wire (bit of a mouthfull). At the same time and to make it easier next time the extend mechanism now has a local plug and socket so it will be easier to remove the crane jib - I will still have to remove the hooks and the 4 winch cables but compared to getting the control cable out and removing the whole crane assy its a doddle.


I also took the opportunity to change the emergency indicators to a multi action on the beier so it will now flash the indicators AND the side flashers (which have 2 modes that are separatley available as well). I ran out of outputs so the grill mounted emergency flahers ( a stripped down emergency beacon mounted behing the grill) and the top mounted flat beacon bar are operated by a channel on a graupner SXM.


sneak peek here https://youtu.be/YnUHwcFLIx8


now where did I put the wipers 2 years and 7 months ago, I know they are somewhere safe - very, very safe by the looks of it!
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Re: Heavy Recovery Rotator

Post by astecme » Wed Nov 29, 2017 5:31 pm

It always happens! Forgot that I had not set warnings on the jacks Rx. Sooo the under lift went up so far it disconnected and the winch winched in. And bike the 120lb breaking strain woven Dacron cable! All I 2 secs. Also one set of flashing lights on one side was not......... DOH. So the under lift looked worse than it was. Undid the cross bar, screwed the rods back in and it's all hunky dory. Also luckily the winch damage looked worse than it was saved by a loose screw. The LEDs was a pin in a plug that pushed out so for once what looked like a big job took 20 mins. PHEW. Scott's vid that I shared has had about 1500 hits in the 5days as well so thanks Scott. I'll let you use my phone next time as its got a better camera😂
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Re: Heavy Recovery Rotator

Post by astecme » Wed Nov 29, 2017 5:31 pm

If you were at Cornwall Truck Show you may have seen that I encountered a problem with the crane lift rams in that they were not running evenly, I put this down to the fact that the chinese vendor of them actually put any old label on! On checking the gearboxes look the same but I know they come with various motors. It only takes a small mix up and there we go. Not terminal but I avoided that scenario buy purchasing from a UK robot store site, about 4 times the cost but I expected them to be much better quality. So they duly arrived I have duly modified the gearboxes to fit my tubes and replaced them - it is all now back together.

Also at cornwall it became apparent that the winch cables were a bit short, at full extension they dont reach the ground, I have now replaced them with 2 meters of 100ib woven nylon line, it is a bit stiff and a bit thinner so more will fit on the reels. Ho Hum, another slight problem is that now the lower reels, which never stacked very well, will not stack 2 mtrs nicely. I believe that the large ones have runners on the cable guides which I cannot replicate, Also I removed the guides as upside down and backwards they were in the wrong place! Food for thought.

I have also been attending to some finishing touches. Aerials were fitted for Cornwall and now I have fitted some nice Scania decals and done the number plates. Nearly there!

Well maybe, there are still jobs that spring to mind like the stripes on the wing doors and ...

No pics just now but it will be out at Wessex ;) MAybe ill try and get some video.

What should I build next?
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Re: Heavy Recovery Rotator

Post by astecme » Wed Nov 29, 2017 5:35 pm

The underlift did not go low enough due to the rams hitting the rear body work so the offending body has been chopped of at an angle and a ptch made. It was too difficult to respry ( It would mean a not inconsiderable strip down) so covered it with treadplate.
rot94.jpg


Matt has said a few times that it needs a spreader bar, so a spreader bar has been made and painted. It is extendable just pop the pins out pull it out and pop them back in, You can similarly shorten the chain.

rot95.jpg

May just call this done now if not exactly finished ( the uderlift jaws still need making but not sure I woould use them.). 3 years to build, blood sweat and yes nearly tears. some bits rebuilt 4 or 5 times to make them work right but I have to say I am pleased as punch with the result.
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Re: Heavy Recovery Rotator

Post by astecme » Wed Nov 29, 2017 5:52 pm

So a couple of vids

first just a look round, static but all working https://youtu.be/ZBbYi2NwFHA sorry cant work the beast and film!

second towing https://youtu.be/jbvT9kOEdKE
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Re: Heavy Recovery Rotator

Post by astecme » Tue Feb 05, 2019 10:16 am

For a while now I have been thinking of upgrading the wrecker from a hobbywing 1040 and Beier USM-RC-2.

Why? well the esc has far better control for one, next there are a few things that the SFR1 can do that the usm cannot. It has more basic command inputs and you can run the outputsequences together just for starters.

At the same time I swapped out the orange rx R215X for an orangerx R620x with sbus. The sbus means that I have more than enough channels to control the truck and as a result have removed the graupner sxm and integrated those outputs into the sfr1 as I have 16 outputs now rather than 10/12 (14 used!). Using Sbus has reduced the number of servo leads but space has been taken up by the extra flat cable. I think I should now look at re-doing that but cant face it just now. I also took the opportunity to uprade the sound ;)

After some discussion with Beier the latest firmware also has the capability for left and right turn warnings ( these are now growing in use in europe so it makes sense).

The SFR1 is a bit bigger than the USM but with fewer leads floating around its all fitted! We will see what I missed on its first run.
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