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 Curtis B. Your Own Question
Curtis B.
Curtis B., service manager
Category: Heavy Equipment
Satisfied Customers: 26016
Experience:  30 years exp. with diesel engines, heavy equipment and forklifts, including lp forklifts
30244710
Type Your Heavy Equipment Question Here...
Curtis B. is online now
A new question is answered every 9 seconds

Ford 4000 ford 4000 when hot lift dont work

Customer Question

ford 4000 when hot lift dont work
Submitted: 5 years ago.
Category: Heavy Equipment
Expert:  Curtis B. replied 5 years ago.

curtis b :

Welcome to JUST ANSWER heavy equipment. With years of experience, I look forward to doing my best to help. Do you have the hydraulic pump mounted on the rear of the engine, over the transmission or the large pump mounted on the right side of the transmission behind the step? Most likely the pump is weak and looses its pressure when hot. The tractor should only need the Ford 134 hytrans fluid and would not use 80w90 gear oil. With the gear oil, pressures should be even greater, but with the heavier weight oil it doesn't work, making me think the pump needs repair or replacement.

JACUSTOMER-s6qtytiu- :

right side behind step.

curtis b :

Pump needs to be examined and most likely replaced. It has pipe that goes to the flow control valve that has to be slipped up into the flow control to allow pump to be removed.

curtis b :

First you might want to check # 29, which is the relief valve. In the bottom picture , the # 41 is the tube that has to be unclipped, to allow it to be pushed into the flow control to allow pump to be removed.

curtis b :

Full Size Image

Related Heavy Equipment Questions