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LT70 Speed Control Wide Open

Started by Cypress Man, September 28, 2022, 08:18:30 PM

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Cypress Man

September 28, 2022, 08:18:30 PM
My 2013 LT70 WIDE has intermittent head speed issues. While the head is moving forward it will suddenly speed wide open. After discussing with WM Indy, we changed the variable resistor speed control, swapped the joy sticks, and  replaced the communication wire on the festoon cable with no improvement. Anyone know what else to try. What else can cause this to happen?
LT70 wide head electric, IC5 Power conveyor, transfer table, Stop and Load Log Deck, Catapiller 360B Telehandler, Cat tl642c Teleloader, Cat TH514 Telehandler, Woodmizer EG400 edger, Logosol PH360 moulder, Extrema 26" Planner, Grizzly 16" dual conveyor resaw, Prentice 285 log loader

Southside

#1
September 28, 2022, 09:00:53 PM
Is this a Super 70? If so have you checked the hydraulic valve that regulates the head drive motor?
Franklin buncher and skidder
JD Processor
Woodmizer LT Super 70 and LT35 sawmill, KD250 kiln, BMS 250 sharpener and setter
Riehl Edger
Woodmaster 725 and 4000 planner and moulder
Enough cows to ensure there is no spare time.
White Oak Meadows

Cypress Man

#2
September 28, 2022, 09:06:05 PM
No. Its not a super 70. Its DCS (Direct Control System) All electric. 3 phase 25hp motor and single phase hydraulics
LT70 wide head electric, IC5 Power conveyor, transfer table, Stop and Load Log Deck, Catapiller 360B Telehandler, Cat tl642c Teleloader, Cat TH514 Telehandler, Woodmizer EG400 edger, Logosol PH360 moulder, Extrema 26" Planner, Grizzly 16" dual conveyor resaw, Prentice 285 log loader

Southside

#3
September 28, 2022, 09:47:39 PM
What is the drive motor powered by? Perhaps @customsawyer can help.
Franklin buncher and skidder
JD Processor
Woodmizer LT Super 70 and LT35 sawmill, KD250 kiln, BMS 250 sharpener and setter
Riehl Edger
Woodmaster 725 and 4000 planner and moulder
Enough cows to ensure there is no spare time.
White Oak Meadows

customsawyer

#4
September 29, 2022, 04:42:48 AM
I'm not up to speed on the DCS mills. Is the drive motor 12 volt? Maybe Gary @gmmills  can chime in.
Two LT70s, Nyle L200 kiln, 4 head Pinheiro planer, 30" double surface Cantek planer, Lucas dedicated slabber, Slabmizer, and enough rolling stock and chainsaws to keep it all running.
www.thecustomsawyer.com

NickParsons

#5
September 29, 2022, 09:16:35 AM
Does your mill have the Diesel engine or electric motor? Is it only in forward? Have you checked the blue and green wires leading to the feed motor for a spot where they are rubbed through to ground?
-Nick

ladylake

#6
October 05, 2022, 04:39:19 AM
 
 Did you get it fixed yet, the wire rubbing together theory sounded good.  Steve
Timberking B20  18000  hours +  Case75xt grapple + forks+8" snow bucket + dirt bucket   770 Oliver   Lots(too many) of chainsaws, Like the Echo saws and the Stihl and Husky     W5  Case loader   1  trailers  Wright sharpener     Suffolk  setter Volvo MCT125c skid loader
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