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Snorkel lift

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Keith True
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Joined: 18 Aug 2017
Posts: 569

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PostPosted: Thu May 27, 2021 4:39 pm    Post subject: Snorkel lift Reply to specific post Reply with quote

I have an 06 TB 50 Snorkel list.The swing is either dead stop or full bore,top speed.I noticed the lift,on the same lever,is modulated,move it a little for slow,and move it more for faster.Same thing for the wheel drive.I just got to thinking that maybe it should be the same for the swing.I am pretty used to an antique JLG lift that hops around like a monkey,so I didn't think much of it.Is anybody here familiar with that machine,and if it has a pentiometer to send the juice down to the solonoids?I like to own shop manuals for everything I own,(or at least IT manuals),but so far I have only found used ones at $380.I'll find one eventually.
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Joined: 30 Jan 2004
Posts: 37139
Location: St. Cloud, MN

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PostPosted: Thu May 27, 2021 7:19 pm    Post subject: Re: Snorkel lift Reply to specific post Reply with quote

Solenoid valves do not operate at various voltages. To reduce the speed, it must be restricted in flow with a variable flow control valve, or orifice. Jim
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Joined: 05 Feb 2003
Posts: 2838

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PostPosted: Fri May 28, 2021 2:45 am    Post subject: Re: Snorkel lift Reply to specific post Reply with quote

Not true, most use pulse width modulation to vary the speed on solenoid valves for manlifts, that being said not all functions are variable, our manlift has drive and boom variable but other functions are not. All depends on the design
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