How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Dan Your Own Question
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 4376
Experience:  17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
65405794
Type Your Construction and Road Equipment Question Here...
Dan is online now
A new question is answered every 9 seconds

I have a 440b skidded that caught a fire inside the dash .I

Customer Question

Hi my name is ***** ***** have a 440b skidded that caught a fire inside the dash .I rewired and put new hydraulic lines on.It fires rite up but the blade won't move up or down pressure and steering is erratic.
JA: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Equipment Mechanic I'm going to connect you with knows all the tricks and shortcuts. Is there anything else important you think the Heavy Equipment Mechanic should know?
Customer: The hydraulic pump doesn't rattle like it always has its quite I guess because of no pressure
Submitted: 3 months ago.
Category: Construction and Road Equipment
Expert:  Dan replied 3 months ago.

Hi my name is***** will try to help. Sounds like possibly a few things. Check the filter for fine metal indicating a pump issue or component issue damaged from the fire heat. check the control valves and relief valve o rings for the same which would cause a bypass in pressure. Check the electrical solenoids and valves for damage as well. if okay verify hose and wiring routing per the shop manual schematics. Let me know

Related Construction and Road Equipment Questions