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Doosan (& Daewoo) G30E-3:
Grabby brakes

G30E-3 serial CX-04308

I am a new owner of this unit and it came with brakes that grab and groan even when the pedal is pressed lightly. I know they're a wet multi-plate setup but it seems like they're responding as if they're dry. Do they run in the diff oil? Or do they have their own reservoir? thanks

• Posted 14 Aug 2018 00:13
• Modified 14 Aug 2018 00:15 by poster
• Discussion started by Java
• Ontario, Canada

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Drain and clean out the oil in the brake system and replace with low foaming universal tractor transmission fluid. Run for a few hours and change it again with universal tractor transmission fluid. It will be fine after that

• Posted 6 May 2022 02:24
• Reply by Cupidstunt
• Bristol, United Kingdom

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Thanks Tom, ended up using TGH fluid. I think the old fluid just hadn't been changed in a long time, it had lost its lubricity and that's why the brakes were grabbing.

• Posted 17 Aug 2018 03:31
• Reply by Java
• Ontario, Canada

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Doosan recommends a trans/gear lube for wet brake applications.

• Posted 17 Aug 2018 03:13
• Reply by tom_p
• Alberta, Canada

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Thanks Helga I'll give it a try

• Posted 14 Aug 2018 03:47
• Reply by Java
• Ontario, Canada

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Hi There, We had a problem the same a Doosan Forklift, We changed the Diff Oil at the front, and by memory it was Automatic oil, Dextron used. I would recommend change the Oil with the correct fluid.
Helga

• Posted 14 Aug 2018 01:22
• Reply by Helga
• United Kingdom

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