• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

pressure

  1. M

    2016 Volvo L70H P228f00 and P016f00

    Hi let me preface by saying im not a trained diesel mechanic, just being forced to try and fix my machine since i cant find a mechanic who'll touch it. I have a Volvo L70H that has been having fuel system issues due to water contamination. It started making a chuffing noise along with alot of...
  2. J

    EX120-2 system base pressure too low

    Hey everyone, I am looking for some more brain power with this problem. Machine is a 120-2 with what I believe to be a 120-3 main control valve (mcv). This means it does not have the adjustable pressure regulator on top of the unloading valve like the -2. Its on the bottom instead. According...
    • Jason Klassen
    • Thread
    • cracked control valve dp sensor ex120-2 ex120-3 hitachi internal crack main control vavle pilot pressure pressure unloading valve
    • Replies: 122
    • Forum: Excavators
  3. F

    D5H pressure and brake problems

    Hello, I need help. My D5H series 8rc01384 damages the Teflon seals on the controls and the discs end up with paste on both sides, the pressures go off in P1. We transit approximately 17 km from the highway to the job site. It began to present a fault in the control, it was braking, so we...
    • Felipe82
    • Thread
    • d5h pressure problem
    • Replies: 0
    • Forum: Dozers
  4. C

    Hydraulic loss of power

    Morning all, I have Komatsu PC35R-8 Serial #F21286. The machine has 1100 hours on it, had no issues when I purchased it approx 3 months ago. I does have one leaking cylinder but not critical to operation and not a significant loss. Recently I seam to lose power after the machine is on and hydro...
    • cpmartin1989
    • Thread
    • excavator filter hydraulic komatsu loss of hydraulics loss of power mini pressure
    • Replies: 13
    • Forum: Excavators
  5. S

    Mini digger wont lift itself on dozer blade

    Hey, I have a 1.5t mini digger, and having trouble with the dozer blade. The mini digger cant lift itself with using only the blade. If i lift the excavator with the arm and then lower the dozer blade, it stay still. Since i now are repairing and changing parts, i want to fix this aswell. I...
    • sandymann
    • Thread
    • blade cylinder diggerblade dozerblade excavator hydraulic issue minidigger pressure weak
    • Replies: 5
    • Forum: Excavators
  6. J

    JD 35D Hydraulic pressure for thumb

    Good afternoon. I just joined the forum here and am hoping to get some help, it looks like there is a lot of knowledge and experience on here. I recently purchased a 2012 John Deere 35D mini ex, mainly to use for some farm cleanup and landscaping work. For what I want to do I think a...
  7. P

    Brake warning lamp 1991 F800

    I've got a 91 F800, L6 Brazilian engine with air brakes, that just got its rear wheel seals replaced. When I got it home I let it idle for a couple minutes and a chime started going off and the right most dash lamp illuminated, after a couple seconds the chime stopped, the lamp dimmed(but was...
    • Problems
    • Thread
    • air brakes brake f800 lights pressure
    • Replies: 16
    • Forum: Trucks
  8. P

    91 F800 fuel delivery

    My ford 7.8l F800 just started shutting off after 15-20 minutes of idling. About a week ago there was a puddle of fuel underneath the fuel/water seperator and thats when this whole issue started. I replaced it, primed it, and the truck started fine but once again it died. Even if I primed it...
    • Problems
    • Thread
    • f800 ford fuel pressure
    • Replies: 5
    • Forum: Trucks
  9. J

    TD25 Dozer Clutch Pressure Problems

    Hello, I’ve recently come into a TD 25 dozer. It runs like a champ, and I’ve run it about 10 hours since I got it, however, as of a little bit ago, I lost most of my clutch pressure. It still runs strong, and if I idle, it keeps pressure in the “blue zone”. The moment I put it in gear, I lose...
    • Joseph Warren
    • Thread
    • clutch dozer pressure pressuredrop td25 transmission
    • Replies: 1
    • Forum: Dozers
Top