The Forestry Forum

General Forestry => Sawmills and Milling => Topic started by: fathead on September 16, 2012, 01:21:10 AM

Title: hydraulic valve controls
Post by: fathead on September 16, 2012, 01:21:10 AM
Forum advice needed, I am trying to decide if it would be a good or bad  idea to put a detent on the valve that controls the forward movement of the saw head. I do have a flow control I plan on adding before the drive motor. As of now I am a builder not a sawyer your experience will be helpful thanks.Fathead.
Title: Re: hydraulic valve controls
Post by: beenthere on September 16, 2012, 01:38:17 AM
When you say "not a sawyer", does that mean you have not done it before?

Are you talking about a particular mill?

Title: Re: hydraulic valve controls
Post by: fathead on September 16, 2012, 02:17:28 AM
I have only help on a manual mill a couple dozen times. I have been building this hydraulic mill for about three years now.It has gone slow and steady. I would estimate that I am about 80% complete.
Title: Re: hydraulic valve controls
Post by: hackberry jake on September 16, 2012, 02:31:01 AM
I would think it would be six of one and half dozen of the other, boils down to personal preference. Make sure your flow control is unidirectional so you can bring the carriage back faster than you feed it.
Title: Re: hydraulic valve controls
Post by: ladylake on September 16, 2012, 07:15:18 AM

A detent should work good, have it or the bypass valve set fairly low so it kicks off easy when you hit something.  Steve
Title: Re: hydraulic valve controls
Post by: Chuck White on September 16, 2012, 07:19:14 AM
With a detent in place, you can provide a very steady forward speed.
Title: Re: hydraulic valve controls
Post by: grweldon on September 17, 2012, 09:15:35 AM
My TK 1400 does not have a detent valve for the carriage forward/reverse.  I find it quite inconvenient.  I keep the lever held in the feed position with a bungee.  Certainly not the preferred situation.  I would add a dentent valve.
Title: Re: hydraulic valve controls
Post by: bandmiller2 on September 17, 2012, 09:32:12 PM
I'd go with the detent valve,mayby weaken the spring holding the detent ball in so it will trip easier.You want the whole band assembly carriage to stop if it hits something.The flow control I used is controlled feed, full speed gigback.I put a manual valve to adjust the return speed.I didn't have a detent valve so I made a horizontal  lever to control the spool valve on the feed and gigback a magnet holds the valve open.At the end of travel theirs a catch to return the valve to neutral.I walk beside my mill as I'am cutting. Frank C.