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Pump Drive Oil Type?

Willbillys

Willbillys

Member
Joined
Jan 27, 2018
Messages
16
Location
Shepherdstown WV
I am going through the drive system on my 1970s Hydra Mac 8c and read in the manual that the pump drive (accepts drive side of coupled shaft from engine) should have "one pint of no. 10 non-detergent oil". I haven't been able to locate this type of oil, but I spoke with Hackert Sales who specialize in older Hydra Mac machines and they told me everything in the machine gets Dexron 3 except the motor. Can anyone else verify this?
 
typ4

typ4

Well-Known Member
Joined
May 23, 2010
Messages
241
Location
oregon
Occupation
Equipment mechanic for a small company.
Trans fluid is a good hydraulic oil.
10wt oil is hard to find.lol. ATF is about 10 wt.
 
Willbillys

Willbillys

Member
Joined
Jan 27, 2018
Messages
16
Location
Shepherdstown WV
typ4 said:
Trans fluid is a good hydraulic oil.
10wt oil is hard to find.lol. ATF is about 10 wt.
Click to expand...

Thanks for the advice. I ended up finding a quart of what the manual called for on eBay. ATF is going in the gear drive boxes and I've got some ISO 46 (20 SAE) going into the hydraulic reservoir.
 
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