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2 post hoist

Discussion in 'General Discussion' started by lout, Nov 13, 2018.

  1. lout

    lout Well-Known Member

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    well i picked up my hoist yesterday
    they quoted $1100 for delivery and install excluding electrical
    this is one seriously heavy piece of kit
    at a guess i would say all up around 1000kg, i was hoping there was a weight listed somewhere, but havent found one, the tyres on the poor trailer certainly bulged out
    in hindsight maybe i should have paid the extra, but the hoist was already over my budget
    forget the youtube video where two guys stand up the posts, no way
    each post must weigh 200kg without the upper extension piece bolted on
    just need to epoxy my floor before assembling the hoist
     
    mantaray56, lmoengnr and Lex like this.
  2. lout

    lout Well-Known Member

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    started assembly today
    standard height is now the low position
    the instructions say move balance cable to low position on carriage
    for high install
    as if it was that easy
    the cable mounts inside the carriage
    with a torch you can see it, no way can you get any tools on it
    after a lot of head scratching , figured it out
    for anybody searching in the future
    whilst posts are laying down
    undo allen key bolt from top of lift cylinder
    move carriage "upwards" about 30cm
    grab the balance cable and feed it "upwards", it is not actually attached to the carriage
    undo nuts from cable threaded end
    pull cable "downwards" through high mount and middle mount, until it is still in the bottom mount and then feed "upwards" again, without going through mounting holes. refit the nuts and tighten
    whilst keeping tension on the slack excess cable. push the carriage back down
    after standing the posts, use a pry bar to lift the carriage 10mm - 15mm
    then relocate the cylinder nipple in the mounting hole, and start allen bolt to top of lift cylinder
    remove prybar and tighten allen bolt
    thats where i am today
     
  3. Lex

    Lex Well-Known Member

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    I was wondering where you were on this project.
    Good luck with it.
     
  4. vs-lover

    vs-lover Well-Known Member

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    I feel that this project has all been done a dusted now, but for other potential purchasers there are Molnar Hoists being taken out of failed automotive businesses and being auctioned off by liquidators on a very regular basis over here in Adelaide. Generally these hoists fetch between $1200 and $2000 at auction and are removed within a couple of hours.

    One thing that is a absolute requirement is the concrete that they are attached to must be at least 8 inches thick if my memory serves me correctly but I'd personally go double that in the immediate area under and between the two columns as a mate of mine did with his.
     
  5. dgp

    dgp Well-Known Member

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    When I was looking at Molnar hoists, they required 6” of concrete, that is 150mm. You can’t be serious about having a 400mm pad below a hoist if you ever installed one, surely.
     
  6. lout

    lout Well-Known Member

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    i figured i had better post an update, unfortunately still not up and running
    to vslover, molnar hoists specify concrete must be minimum 100mm, reccommended is 125mm
    ok, definitely pay for the install
    not that it is overly difficult, just most of the instructions are useless
    hit rebar in 3 mounting holes, but of course, just a glancing hit not square on so cannot use a standard steel drill bit, needed a rebar cutter drill bit, special order from germany, only $80 though
    i would be watching installer at this point, easy just to use a shorter dynabolt and you would never know
    as previous, new hoist comes in lowered height as standard
    this word standard changes its definition depending on the date and the page in the manual
    there are two mounting points for the motor/pump, the motor/pump remains the same distance to the control box
    so if hoist in lowered position use top mount. if hoist in high position use lower mount
    this also affects the hose length, comes with a couple of short extension pieces, trial and error to get correct length
    hose from pump to hydraulic line t-piece could use being an inch longer
    limit switches have 2 different length harnesses, the longer harness goes to the top rail cutoff switch
    also specifies 12L hydraulic oil. this includes the hoses and cylinders in collapsed height
    figured i would use 10L and then top up once running, took 9L and then overflowed all over control box
    finally got the electrician out
    to find the chinese motor is running backwards, no easy wiring change inside, so waiting on molnar to figure out what to do
    anyway, courier just delivered rebar cutter so off to drill my remaining holes
     

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