1970 Cat D7 F

Omalley65 · Nov 18, 2023

Can you push these dozers while they are running if the transmission wont engage? Id like to push it on to a lowboy and haul it to my shop. Before I go to the effort to haul another dozer there that can push it Id like to know if it can be pushed if trans is not working

Fixingfarmer · Nov 18, 2023

What I would do if it cant be pushed to do it would be start it raise blade. Shut it off. Pull driveshafts quick and push it on. I think left side pulled would be enough but you will know right away if it doesnt move

Cash4Toys · Nov 18, 2023

Transmission won't engage? Power shift I assume? Dosent really matter I guess, but if it's a direct drive make sure it's in neutral. So long as the brakes are released you can push them. If the transmission or ring and pinion are locked up just pull both steering clutches back to release them, then only the final drives are turning. If it is a powershift, it's sounds like the charging pump is out or dry, lost prime. Do you have hydraulic pressure to release the steering clutches?

Omalley65 · Nov 18, 2023

Dont know what pump pressures the steering clutches but blade has plenty of pressure

Omalley65 · Nov 18, 2023

Thats an idea to remember for sure if it wont move.

Cash4Toys · Nov 18, 2023

Transmission pump is used for clutches and brake booster. At least that's how a D8h works, don't think there's much different on a 7. Did you just buy it or is it something you have owned?
Have checked all the fluids, transmission, converter, etc? Is it a powershift? There should be five (5) ports to check the system. One each for converter, steering clutches, brakes, charge pump and lube pump that excluding the hydraulics. Lots of times if they sit for a long period of time they can loose their prime on the charge pump. Usually caused by an O ring that dried out and leaked air into the system. It should roll though, as there was no auto lockup or anything on them when not running. Hydraulics for the moldboard, ripper etc. Is a separate system, no affiliation to the transmission

Check Break · Nov 18, 2023

(quoted from post at 04:20:23 11/18/23) Can you push these dozers while they are running if the transmission wont engage? Id like to push it on to a lowboy and haul it to my shop. Before I go to the effort to haul another dozer there that can push it Id like to know if it can be pushed if trans is not working

Yes. Pull steering sticks out to disengage steering clutches. Release park brake if it is applied.

1970 Cat D7 F

Omalley65

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Omalley65

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