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Discussion Forum

WD Transmission fluid

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Jake (ME)

05-30-2002 15:34:32

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What is the fluid in the transmission of a WD??


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Gene [In]

05-31-2002 17:26:24

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 Re: WD Transmission fluid in reply to Jake (ME), 05-30-2002 15:34:32  
Don't use 90W in hyd.. use non-foaming 20W in hyd.

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steve II

05-31-2002 08:01:29

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 Re: WD Transmission fluid in reply to Jake (ME), 05-30-2002 15:34:32  
80-90W (GL-5, EP) has been used in my (fifty-year old now!) WD for ten years with no problems. You will need close to five gallons (and a little patience) in order to top it off. Since the manual clutch and transaxle are separate, joined castings, Allis provides two filler plugs; both are beneath and behind the clutch pedal.

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Bryan Smith

05-31-2002 11:26:22

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 Re: Re: WD Transmission fluid in reply to steve II, 05-31-2002 08:01:29  
I'm sure the 90w in the hydraulics works, but the higher viscosity would slow things down a bit as well as raise the hp requirement for the hydraulic pump, I think! Do you use external hydraulic cylinders much (harrows, etc.)? Just curious about how slowly they would raise.

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Dave Grubb

05-31-2002 05:58:44

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 Re: WD Transmission fluid in reply to Jake (ME), 05-30-2002 15:34:32  
The transmission, rear end, and final drives get 80W gear oil. The hydraulic system gets any of the fluids the other guys mentioned.

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05-30-2002 19:51:37

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 Re: WD Transmission fluid in reply to Jake (ME), 05-30-2002 15:34:32  
50 years ago it was 20 wt engine oil. today most people prefer to use something like hy-trans, a hydraulic transmission fluid you can get at Farm Center or Wal Mart. It is a 20 wt hydraulic oil with anti foam and anti water dispersants.

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Bryan Smith

05-31-2002 05:37:01

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 Re: Re: WD Transmission fluid in reply to steve, 05-30-2002 19:51:37  
Check out my website and look under tractor oil specs - I have a page there that lists the original oil reccommendation and the amount. Maybe that will help you get started.

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