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hydraulic

  1. J

    2000 IR blaw-Knox 4410 with ultimat hydraulic oil overheating

    Just bought a 4410 of of an auction and knew it had some hydraulic issues before because it has an added cooler with electric fans and some stuff replaced. When I got the machine it wouldn't even lift the screed so I had my mechanic look at itnamd pump pressure was low like 900. We adjusted...
    • Junker907
    • Thread
    • 4410 blaw-knox hydraulic
    • Replies: 1
    • Forum: Pavers
  2. schreib

    grapple jaw falls back down. Help.

    ASV, HT80, diesel 4 cyl. 80 HP Track loader: I have what I believe are two related problems. 1) When using my grapple the upper jaw floats back down after opening and I have to keep tweaking it back open and 2) just bought a snow plow and find I have to keep tweaking it back into position when...
  3. F

    CAT 257B3 electrical - Front door safety

    I have a 2011 257B3, everything works when the dummy/jumper plug for the front window is plugged in. Once I plug in the connector for the door, nothing works as if its not plugged in ( no hydraulics, wiper etc) no broken wires behind door cover, everything seems to be intact. Any ideas on where...
  4. K

    Case tv380 skid steer

    I was just wondering if someone could tell me how to lift the cab of my tv 380 skid steer. Thanks
    • Kimmy
    • Thread
    • case 380 hydraulic skid steer
    • Replies: 3
    • Forum: Skid Steers
  5. L

    Case 9040B bogs down and kills engine when metering bucket

    I have a Case 9040B that bogs down and kills the engine when the bucket function is activated. Sounds like the pumps are going into full stroke when the bucket is just getting metered. I checked pump2 pressure and the pressure rises up to system pressure when the bucket is getting metered in...
    • Lman
    • Thread
    • bucket case construction hydraulic
    • Replies: 20
    • Forum: Excavators
  6. I

    PTFE/Teflon seals for hydraulic cylinder

    Hey guys long time reader, first time poster. I was wondering if anyone knows of a good source for PTFE/Teflon seals for a piston that came out of steering cylinder for an international 784 tractor.
  7. R

    This JD 450H problem made 2 Deere service managers scratch their heads!

    Out of the blue I started my JD 450H and when I put it in forward it would not move. Same thing with reverse but after a minute of so it eventually started to move erratically. Left track moved right track did not. In about a second the right track moved and the left did not (steering left right...
    • rvn336pf
    • Thread
    • hydraulic problem tracking
    • Replies: 7
    • Forum: Dozers
  8. I

    Komatsu PC 290 - 8 HELP !!!

    I have a problem with Komatsu PC - 290 - 8. While working engine keep stoping after load pressure. Just engine swith off ! engine power is all right. Hydraulic pump was repaired a few days ago, pressures are fine. The computer doesn´s show any error !!! Problem is not constant - power is maximum...
  9. B

    F-800 Lucas Girling Brakes

    I have a 1989 F-800 with the Lucas Girling brake system. The line that comes out of the hydromax into the Hydraulic relay is building up too much pressure I believe. I put a new line on it that was rated at 315 PSI and it started to bubble out of the side like it was about to blow. I then went...
  10. witchermtnex

    Basic Hydraulic Hose Replacement question?

    I have a John Deere 310se Backhoe and It needs a new hose for the rear bucket cylinder.. Its the big one that mounts to the rear of the cylinder and runs up to the hydraulic rail on the top of the hoe.. I have the hoe " boom " extended out and laying as flat on the ground as I can get it.. My...
  11. witchermtnex

    HELP! John Deere 310SE Cranks but wont fire

    Hello everybody I have a 98 310se Backhoe.. Ive had this unit a long time and it hasn't seen much hard use in years I use it to move stuff and scrape my drive way.. Anyway a few days ago I used it to move a fridge and it ran perfect.. Today It cranks but wont fire up.. It was low on fuel so I...
  12. R

    Terex TA400 Hydraulic / Brake Fluid mix

    Hi, We have a 2010 Terex TA400, and the hydraulic and brake fluid are mixing, overflowing one reservoir and emptying the other. Also, while rolling, the brakes will engage randomly without touching the pedal. An older post on a TA40 pointed to a bad pump seal for a similar problem, or bad...
  13. M

    backhoe 310sj 4/1 front bucket wont open or close

    Aloha, my 310sj (2006) was operating fine yesterday and today the 4 in1 bucket wont ope or close...lever feels fine. I can see the rams trying to actuate (move slightly) but wont open or close. Everything else seems to be working properly. Any advice would be greatly appreciated. Mahalo from Hawaii.
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