1974 Ford 3400- Hydraulic Oil Level Plug

(quoted from post at 02:10:55 01/07/12) WHERE IS IT???

Operator's manual shows it as a square headed plug right behind the parking brake. Not there. I have an adjustable flow control just above there. Is it the plug that sticks out farthest. Pulled it and pumped in 7 gals of hydraulic fluid (changed fluid today) but either didn't fill it enough or that's not it. Didn't want to pump in too much until one of you smart folks could help me figure it out.

Thanks.

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(quoted from post at 06:11:24 01/07/12) Yep, that's where my oil level plug is on my diesel 3000. Yours should be the same on a 3400. Manual says 25.2 quarts (6.3 gallons) is full, so I'd say you're 2.8 quarts overfull. I'd drain out 2.8 quarts and call it good.

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(quoted from post at 21:48:01 01/06/12)
Not the best picture, but it should help. I've circled it in red. It's a square headed pipe plug, about the same height as the parking brake, lower than the flow control valve, farther back. This is a 1966 3400.

What kind of PTO do you have? The transmission PTO should look like the one above. If you have an independent PTO, then you may have the gear-type pump in the sump and (like on my 4000su) the square-headed pipe plug may be in the pump housing instead, like this:

Sorry to be vague and say "may" here.. I don't know for sure if the independent PTO was an option on the 1974 3400 or not.. just trying to think of reasons why you're not seeing the plug where the manual says it should be.

Hope this helps -
Greg

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