Muir winch experts

 I have a Muir hff600s free fall winch fitteed to the Grady. It is the first one I have used and the previous owner has set it up with 60 mts of chain plus rope. When dropping the anchor the chain peels of at a rate of knots until its all out even if in only 2 mtrs of water. The only way to stop it is to hit the up button while its peeling off which im guessing isnt to good for it. It had a loose connection the other day and wouldnt drop which i fixed but now seems to have an intermittent fault when raising. It seems as if it takes some time to catch up on retrieve after dropping and i have to hit the up button several times to get the anchor to start comming up but once moving retrieves ok.

So should i cut the chain down. Is this normal operation for the retrieve. What and how hard are they to service


ranmar850's picture

Posts: 2702

Date Joined: 12/08/12

60 metres of chain?

Tue, 2016-11-15 12:46

 Jeez, thats overkill on a trailerboat. If the Muir works like any other freefall, it will keep on feeding out at speed until the weight goes off it. And with 60 metres of chain, I'm gueessing it would keep feeding it out fast until you get to the rope and all the chain is lying on the bottom. Hitting the up button while it is feeding out at speed doesn't sound like a very good idea. 7 or 8 metres of chain should be enough? that will take the load off, slowing the feed out once the tackle and chain hits bottom. Of course, you should be going slowly in reverse as you freefall to avoid having the chain pile up on top of the anchor and possibly stopping it from deploying along the bottom, then keep backing out slowly until you have let enough out for your requirements.

I've read a few freefall winch manuals, and they specifically state NOT to hit Up  while they are freefalling under load.

Posts: 126

Date Joined: 26/08/16

Correct

Sat, 2016-12-03 03:42

 my stress free manual also says that's a bad idea. The way the drum disengages ( solenoid activated) means hitting the up button would eventually rape the mechanism as it only is able to engage twice per revolution.

and whilst that Grady is a substab

ntial boat, do you really want the weight of 60m of chain sitting on the bow?

 

ranmar850's picture

Posts: 2702

Date Joined: 12/08/12

As to the big length of chain

Sat, 2016-12-03 07:53

 I've seen this before on THT, Yanks using a load of chain before rope. The reasoning behind it seems to be that it will hold better with less out, as the weight of the chain comes into play..The other reason, which I think is the elephant in the room, is that people have trouble with the windlass types due to incorrect rope choice, so try to just use chain, which won't give any problems as long as it is correctly matched to the gypsy. The rope is only there if they really need to have a lot out. What kind of rope is in the well? A lot of research on this always comes back to the same answer--the only type which will work long term is 8-strand plaited. Try to use something like silver rope, immediate problems. Use 3-strand soft nylon, it will work for a while, then issues start to arise as it hardens. People look at the price of the 8-strand and decide to go for the cheaper 3-strand, have problems, blame the gysy style winch. And then go to a drum and proclaim all their problems are solved---then have to buy expensive Dyneema in a small diameter if they need to get a decent amount on   

pelagicyachts's picture

Posts: 1301

Date Joined: 23/02/11

haha - that made me laugh!

Mon, 2016-12-05 08:53

haha - that made me laugh!

Gav475's picture

Posts: 393

Date Joined: 16/11/11

removed

Sat, 2016-12-03 09:52

 Have taken 50 meters off, leaving 10 meters and 8 strand rope. Why someone would want 60 meters of chain on it I dont know. The weight of that removed 50 meters was substantial. Has to be better for the winch and the boat. Was frustrating when anchoring in 3 meters at rotto only to whatch 60 meters peel off. All sorted. I hope.

ranmar850's picture

Posts: 2702

Date Joined: 12/08/12

Sounds good.

Sat, 2016-12-03 10:09

 Very nice boat, BTW. Guessing the chain was 1/4"  if it was an import? 50 metres of that is a substantial weight . Of course, it also takes up less room in the locker, too-- 8 strand also has that advantage over other types in that the softness and lack of lay will allow it to fall better. I currently have a Maxwell HRC 6 FF going through customs clearance in Perth, and waiting on the 12mm 8 strand I ordered to come into stock.