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HD21P help |
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Traveller ![]() Bronze Level ![]() ![]() Joined: 04 Jul 2024 Location: AZ Points: 8 |
![]() ![]() ![]() ![]() ![]() Posted: 04 Jul 2024 at 9:37am |
I have an HD21P that has been sitting for I don't know how many years. was moving it to load on trailer and blew a steering/brake hydraulic line(one of two long lines from rear to front filter assembly on left side), replaced line and it worked for a few minutes then i lost both sides steering and brakes. tried bleeding the lines and still nothing.
second question : how long should it take to have transmission oil pressure? seems to take a very long time before pressure comes up and it happens all at once, from 0 to operating pressure. |
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DMiller ![]() Orange Level Access ![]() Joined: 14 Sep 2009 Location: Hermann, Mo Points: 30375 |
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Suction screens are probably loaded as of the Surge when the Line burst, will need to pull them ALL down clean and inspect, change filters.
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Traveller ![]() Bronze Level ![]() ![]() Joined: 04 Jul 2024 Location: AZ Points: 8 |
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thank you for the reply. ill check that out as soon as i get back to it
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Traveller ![]() Bronze Level ![]() ![]() Joined: 04 Jul 2024 Location: AZ Points: 8 |
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how do i get to the screen?
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Codger ![]() Orange Level ![]() ![]() Joined: 23 Dec 2020 Location: Illinois Points: 1985 |
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These are all cartridge filters and element screens. Look for your power steering pump and the lines will run right to them. Need a serial # for the tractor to help further. Most of the cartridge screens are cleanable with time and a solvent tank; filters should be replaced.
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A career built on repairing and improving engineering design deficiencies, shortcomings, and failures over 50 years now.
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Traveller ![]() Bronze Level ![]() ![]() Joined: 04 Jul 2024 Location: AZ Points: 8 |
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sn# is 13374
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Codger ![]() Orange Level ![]() ![]() Joined: 23 Dec 2020 Location: Illinois Points: 1985 |
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A career built on repairing and improving engineering design deficiencies, shortcomings, and failures over 50 years now.
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Traveller ![]() Bronze Level ![]() ![]() Joined: 04 Jul 2024 Location: AZ Points: 8 |
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thanks again. the filters didnt look too bad. i replaced the second long line and had steering for about 50 feet again then lost it again.is there a way to bleed the system? also i cant seem to find where to add the fluid. its only at minimum operating range on the dipstick (if its the correct dipstick that im checking) im missing the most forward dipstick of the 3 next to the seat. the most rearward dipstick seems to be the correct one.
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Ray54 ![]() Orange Level Access ![]() Joined: 22 Nov 2009 Location: Paso Robles, Ca Points: 4439 |
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Try going to"General Gear" a after market seller of steering clutch parts for all crawlers. In the last years they added parts books for sure, but I think other books to help people working on the old stuff. So they may have the operators book you desperately need.
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Traveller ![]() Bronze Level ![]() ![]() Joined: 04 Jul 2024 Location: AZ Points: 8 |
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thank you. ill check them out
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Doughd16b ![]() Bronze Level ![]() ![]() Joined: 01 Sep 2022 Location: Nc Points: 26 |
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I think I can help, 252 916 2927
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Traveller ![]() Bronze Level ![]() ![]() Joined: 04 Jul 2024 Location: AZ Points: 8 |
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Thank you i will give you a call tomorrow (friday)
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