d-4 7u No. 44 hydraulic control

cfbromm
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1 year 9 months ago #245631 by cfbromm

d-4 7u No. 44 hydraulic control was created by cfbromm

Need some advice, understanding control plunger and spring. The # of unit is 8f1123 Hydraulic cylinder group right hand.
Are parts readily available?

I am trying to sent pictures, no luck yet.

Thanks for responding.

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PNW.Hillbilly
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1 year 9 months ago #245633 by PNW.Hillbilly

Replied by PNW.Hillbilly on topic d-4 7u No. 44 hydraulic control

All the o-rings are easy to find, if your plunger is worn that might be a problem. Are you having a problem knowing the order to put the bolt, springs, and washers back together?

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Fat Dan
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1 year 9 months ago - 1 year 9 months ago #245636 by Fat Dan

Replied by Fat Dan on topic d-4 7u No. 44 hydraulic control

I recently uploaded to the library " Servicemen's Reference Book Caterpillar Hydraulic Controls and Equipment "
Covers a lot on No. 44 Hyd Controls
No. 46 Hyd Controls
Hyd cyl for bulldozers and implements
No. 40 Hyd Controls scrapers hyd cyl and valves
Flow diagrams
Flow diagrams for the No. 41 Hyd Controls

Hope it helps

ACMOC Member
Traxcavator: 60, 955E 12A08263; 57, 955C 12A04040; 57, 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320; 9K9982
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Tractor w/ Bullgrader Blade

Last edit: 1 year 9 months ago by Fat Dan.

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cfbromm
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1 year 9 months ago #245651 by cfbromm

Replied by cfbromm on topic d-4 7u No. 44 hydraulic control

No, PNW.HILLBILLY. Thanks for information on the o rings. And Thanks for You Tube videos.
So far, I just pull the plunger out of the cylinder. Just study that relief valve. I have no spring action in relief valve.

Thanks, Fat Dan for your information. I'll checking that out.

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d-4 7u No. 44 hydraulic control

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