JakeHarrington
Well-Known Member
i have a 980h JMS03132. it has 12,000 hours on it. i bought it used 2 months ago. i have the half wheel command steering.
now in the colder weather when i start her up every morning I can't steer or move the hydraulics. it takes like 20 minutes of idling till i can steer. and then another 10-20 minutes of run time till the steering and hydraulics are smooth.
i have plenty of oil in the hydraulic tank. i have no codes on Cat ET.
It sounds like it sucking air almost but i can't find any leaks.
the hydraulic tank doesn't build up much pressure while running. i have rigged up a test port and a gauge in line with the breaker valve on the tank. i was told that these tanks are supposed to be pressurized.
when i rig up a fitting and put 10-20psi in the tank on start up the hydraulic start to response much quicker then normal(2-3mins).
i believe my problem is somewhere in the pilot control system.
Any help would much appreciated.
thank you.
now in the colder weather when i start her up every morning I can't steer or move the hydraulics. it takes like 20 minutes of idling till i can steer. and then another 10-20 minutes of run time till the steering and hydraulics are smooth.
i have plenty of oil in the hydraulic tank. i have no codes on Cat ET.
It sounds like it sucking air almost but i can't find any leaks.
the hydraulic tank doesn't build up much pressure while running. i have rigged up a test port and a gauge in line with the breaker valve on the tank. i was told that these tanks are supposed to be pressurized.
when i rig up a fitting and put 10-20psi in the tank on start up the hydraulic start to response much quicker then normal(2-3mins).
i believe my problem is somewhere in the pilot control system.
Any help would much appreciated.
thank you.