Rebuilding a RUNVA

[fullthrottle]

So, I've aquired an old Runva EWP8000, permanent magnet motor version.

I'm just reconditioning it and while breaking it down I see that the entire gearbox is exposed to water. Is it normal when a winch is fully submerged for water to be able to enter the gearbox and then just drain out again?

Thought it might have been more sealed like the motor side.

[kiwipete]

I did a post some time back on the recon/re-build of a Runva winch that may help you, but you will need to do some searching to find it tho.

[fullthrottle]

I did a post some time back on the recon/re-build of a Runva winch that may help you, but you will need to do some searching to find it tho.

Been trying to find your post, no luck so far

[fullthrottle]

Need some advice...

Below is a picture of the brake mechanism in my winch. When I pulled it out, it was all coated in old grease. Around the brake shoes it had burnt the grease so would probably explain the binding on free-spool.

Anyway, I would like to keep the brake shoe area (circled in red) dry, but apply some sort of lube to the brake mechanism (circled in green) to stop rust and keep it sliding smoothly.

After a bit of research, I think I have found the product:
Bendix Ceramic High Performance Synthetic Lubricant
http://www.bendix.com.au/content/high_p ... _lubricant

Insoluble, waterproof and chemical resistant
lubricant that will remain in place and protect braking system parts at extreme temperature from -50ºC to more than +1650ºC

[fullthrottle]

Well she is almost finished now.
Was hoping to get some new bushes for the drum to housing, but due to its age I'll have to fashion something up.

Michael from http://www.winch.co.nz has been a great help.

I tell ya, after reading a lot and watching some of the WARN winch rebuild videos, this RUNVA is an exact copy. Quality of the components look fine to.

Anyway, now that I can't get new bushes, I'll bung it back together and hand it over to TAZ to mount
Need something to drag the truck out of the firewood gulleys.

[fullthrottle]

Well new bars in and winch mounted now...... Thanks Taz

Have just been testing out the winch, but something is not right. She might be able to pull about a quarter of its capacity, but certainly not my light truck up an incline. The winch stalls and then when winding it in under no load, the motor is smoking.
It must be shorting out around the brushes or internal wires somewhere. It did have a good look at it when I stripped it down and used a meter to measure any shorts. Would have been good to have used a megohm on it.
Ahhhh, bloody thing...

At least something is filling that hole now. And it free spools so nice an easy now.

[crazyclark31]

mine did that and you'll find it's the brake not releasing. put it in free spool and active the winch(make sure you've got a bit of rpoe out tho). if its jamed on the it will go REAL fast.

[fullthrottle]

mine did that and you'll find it's the brake not releasing. put it in free spool and active the winch(make sure you've got a bit of rpoe out tho). if its jamed on the it will go REAL fast.

Yeah tried that, but its not the brake for sure. (as free as a bird)
It was getting rather hot where the brushes are, so I suspect its shorting out around there somewhere.

[fullthrottle]

Hmmmmm ok found the problem.
Stripped it back down again and found bit of copper inside the motor housing. some of the windings had melted...not a good look. That is absolutely f#@ked then.

[Sadam_Husain]

go shout yourself a new runva for xmas then you'll have all the bits from the old one for spare parts for the next rebuild

[fullthrottle]

go shout yourself a new runva for xmas then you'll have all the bits from the old one for spare parts for the next rebuild

Just have my good man. Mike has done me a good deal on the comp 9500 winch.

Ahhh the joys of wasting heaps of time on things. But enjoyed it