1070 reverse

olgentdc · Nov 21, 2009

My brother just told me today , That a 1070 powershift should have a lockout disabling 4th range reverse .. My 71'1070 ,will fly in 4th reverse,,, consequently ,I do not use that gear at all, And I feel this gear was locked out in later models only because it was impractical and Dangerous , Brother warned that damage to tranny could result if I frequently used hi range reverse , I say hog-wash ,,..Bottom line is there something wrong with My tractor if it has a working hi speed 4th reverse ??? , Thanx Jim

DKase · Nov 21, 2009

My 870 is an early one. I do not know how early because the SN tag is AWL. It is early enough so it has the fuel priming pump on the fuel filter. Yes you are right! It will boogie right along in 4th reverse. Good for 4 wheel trailer backing practice. LOL

olgentdc · Nov 22, 2009

thanx DKase,,,So then My tractor is fine, and some folks just luv to worry me . LOL ... The fuel primer is next to the filter on mine also ,, I have checked the serial#when this 1070 came wandering up the drive a year ago and proved it to be a 1971 build yr.

mEl · Nov 22, 2009

J, your 1070 shoud never "fly" into reverse, in fact it should not go into reverse ever if the clutch is released, the reverse lockout spool will not allow that if all is together correctly. Please post back if you can lever back into reverse without pushing the inching pedal (clutch). If you can it indicates that the selector spool is 1/2 turn out of position and the reverse lockout slot is away from the reverse lockout plunger, a very dangerous situation. Yes, the later 70 series locked out 4th gear in reverse lever position. mEl

olgentdc · Nov 22, 2009

Thanx mEl, I Must (clutch) in order to get reverse ...I looked at my printed words and realized that it could be misleading ,, My 1070 when placed in 4th range Reverse , Will go very VERY fast backwards , My Brother thinks damage could result if I used that hi reverse Position , Which Is my point of Concern ...Please know ,It will not automatically fall into reverse and take-off backwards unattended ..

Superturbodiesel · Nov 23, 2009

(quoted from post at 05:04:17 11/22/09) Bottom line... is there something wrong with my tractor if it has a working high-speed 4th reverse? Thanx, Jim

Absolutely NOT Jim. No harm will occur to your transmission if using "4th reverse". Your brother is WRONG - period.

YOU are 100% correct in your saftey assumption as to why Case updated their later production tractors with the 4th reverse "lock-out" in their later built tractors.

Traveling in reverse at high speeds can be a recipe for a major disaster. So if you choose to use it, please BE CAREFUL! Probably best you refrain and never use it - for everyone's saftey & well-being.

Happy reversing!

~AJ

mEl · Nov 23, 2009

Thanks for the clarification J. Reverse ps ratio is the same as 3rd ps ratio in any gear so operating the tractor in 4th gear in reverse at full throttle would generate some interesting contol issues LOL. BTW I have inadvertantly ran the ps in reverse on the dyno and can attest that it eats up a few hp till you figure it out, but no hardware failures but the recommendation to not do that stands. mEl

1070 reverse

olgentdc

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DKase

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olgentdc

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mEl

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olgentdc

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Superturbodiesel

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mEl

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