naa hydraulic draft control connecting link

#NAA HYDRAULIC DRAFT CONTROL CONNECTING LINK PDF#
#NAA HYDRAULIC DRAFT CONTROL CONNECTING LINK CRACK#

A portion of the pilot piston 74 disposed in the hole 77 is of substantially the same diameter as the hole 77 for slidable movement therein while another portion is of reduced diameter so as to form a fluid passage 80 between a further reduced portion defining a subchamber 78 and the main chamber 70. The pilot piston 74 extends through the main chamber 70 into slidable engagement with a longitudinal hole 77 in the main piston 68. tractive forceĪ pilot piston 74 having balancing grooves 75 of known configuration is slidably mounted in the valve body 64 between the main chamber 70 and the sensor connected chamber 86. A01B63/112- Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements to control draught load, i.e.A01B63/111- Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements.A01B63/10- Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means.A01B63/02- Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors.A01B63/00- Lifting or adjusting devices or arrangements for agricultural machines or implements.

A01B- SOIL WORKING IN AGRICULTURE OR FORESTRY PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL.A01- AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING.238000004519 manufacturing process Methods 0.000 description 1.238000006011 modification reaction Methods 0.000 description 2.241001236653 Lavinia exilicauda Species 0.000 abstract description 4.230000003247 decreasing Effects 0.000 claims description 4.239000012530 fluid Substances 0.000 claims abstract description 52.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Deere and Co filed Critical Deere and Co Priority to US05/601,660 priority Critical patent/US3990520A/en Application granted granted Critical Publication of US3990520A publication Critical patent/US3990520A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee Deere and Co Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US05/601,660 Inventor James Allan Koch Richard Treichel Benjamin Michael Witte Current Assignee (The listed assignees may be inaccurate.

#NAA HYDRAULIC DRAFT CONTROL CONNECTING LINK PDF#

Google Patents Tractor with hydraulic draft controlĭownload PDF Info Publication number US3990520A US3990520A US05/601,660 US60166075A US3990520A US 3990520 A US3990520 A US 3990520A US 60166075 A US60166075 A US 60166075A US 3990520 A US3990520 A US 3990520A Authority US United States Prior art keywords draft chamber piston means pilot piston main Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US3990520A - Tractor with hydraulic draft control

#NAA HYDRAULIC DRAFT CONTROL CONNECTING LINK CRACK#

I'll just crack the top off in a minute here (now that my daughter is off to ballet for an hour) and see if anything is obviously awry.US3990520A - Tractor with hydraulic draft control I don't know if the flail mower bounced hard on the lift arms when I let it down and bent something inside, or what. Honestly, I don't have a complete grasp on how the whole hydraulic system works- When I took the top off for the rebuild, the pressure valve just seemed to sit there through the hole in the side case- it's not hooked to anything. The hex cap on the right side- the pressure valve or whatnot. Like I said, the lift worked great until this. The whole fluid tank got cleaned out flushed and new fluid.

How does one go about pressure testing the system? I don't have gauges or specialty tools.Ībout 6 months ago the lift hydraulics got all new gaskets and o-rings, a new piston with the leather and rubber seals, all the brackets were straightened, a new cam follower pin, and everything was adjusted as per the 'alternate' method.

Naa hydraulic draft control connecting link