I have an International tractor 3434. The Heavy Equipment Mechanic I'm going to connect you with knows all the tricks and shortcuts. : : Our 674 diesel PTO has quit engaging. It works a bit on flat ground but you can sense that it ... Am having a problem with the hydraulic system. Site Areas; Settings; When completed all other hydraulic functions as normal except brakes. I have a 674 International that I'm having problems with. Production: Manufacturer: International Harvester: Factory: Doncaster, England: Original price (USD): $11,300 (1978) International Harvester 674 Engines: The the 3 point lift works, the front end loader hydraulics work, but no power steering. Good Used. We have been having problems with sludge in the hydraulics for years. international 574 hyd problems Discussion in 'Case ... Hello, finally I have an answer cyrush to my hydraulic problem. Out of Stock. I jacked it up and cycled the steering for 20 minutes left to right and that didn't help. the 3-point arms wont lift, the stearing gets tough, and I just dont seem to have any pressure. CALL FOR AVALABILTY. Re: Ih 674 hydraulic operation Snowfish, from your description of the female hydraulic coupling collar being clamped, my guess is that it has been set up as an automatic breakaway coupling. ... thank you for your information got the problem solved.Happy international driver Quick Navigation Parts/Repairs Top. $45.00. The hydraulics stopped working on it. I have a Case Int 674 Tractor. International 454 464 574 674 Hydraulic Unloading and Flow Valve. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. This item fits Case IH 674 (Utility Series) Heavy Duty Kit Contains: 1 x S.14036 & 1 x S.14247 Bearing, 1 x S.14037 Ring, 1 x S.1501 Cotter Pin, 1 x S.57729 Lip Ring & S.17468 Seal For Normal Duty option, please see S.14040. How to changed hydraulic pump on 674 international tractor, diesel. International 674. International 674 hydraulics and brakes ... Rocker cover had been lifted to repair forward and reverse selector shaft. The hydraulic steering keep locking when on a slight slope especially when the tractor tilts to the left. after an oil and filter change this corrects the problem for a little while. $135.00. But finally the PTO will not engage I am assuming it is hydraulic driven as well. Related Items. The International 674 was a utility tractor produced from 1973-1977 in Doncaster. Can anybody help please? $40.00. International Hydraulic Filter Screen. Case International Harvester 674 parts UK & Eire. Any ideas on how to fix it or troubleshoot it. IH 574 hydraulic problem I have an international 574 with hydraulic problems. When I changed the hydraulic fluid and filter, the power steering quit working. All the hydraulics work except the steering. 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