JakeHarrington
Well-Known Member
Hi I have been working on my 980H for a few months now trying to get it right for the spring season. i have asked a few question on here before about it. And I could use some more help.
serial number is JMS03132
Im having problems with the loader controls. They usually work fine but some time they stop working completely and random start again and make it really jerky to load with. usually tapping the brakes a few times get the controls back. turning th command steering often makes me loss the hydraulics.
so over the last months i have replaces all the suction hoses and o rings. double up on each hose clamp. replaces the pilot pump. replaced the lockout solenoid, replaced the brake accumulator priority valve.
nothing has helped besides the pilot pump. that has helped on start up to get brake pressure up immediately when cold.
So now i finally broke out the gauges. I have the pilot test port hooked up and have a nice hose with the gauge set up so i can see it out the windshield and watch it while loading.
pilot pressure gets up to 500psi like its supposed then drops to zero and bounces around all back the fourth pretty much randomly and at all rpms. turning usually makes it drop to zero. and hitting the breaks turns bumps it up usually but sometimes it doesn't. i can post a video of the gauge if it will help.
when you turn the machine of the gauge sits at like 300psi
i tried turning up the pressure regulating valves up buy the pilot test port.. that didn't seems to make a difference.
So any more ideas what to throw at this machine i really can't think of anything else.
all help is greatly appreciated,
Thank you Jake Harrington
serial number is JMS03132
Im having problems with the loader controls. They usually work fine but some time they stop working completely and random start again and make it really jerky to load with. usually tapping the brakes a few times get the controls back. turning th command steering often makes me loss the hydraulics.
so over the last months i have replaces all the suction hoses and o rings. double up on each hose clamp. replaces the pilot pump. replaced the lockout solenoid, replaced the brake accumulator priority valve.
nothing has helped besides the pilot pump. that has helped on start up to get brake pressure up immediately when cold.
So now i finally broke out the gauges. I have the pilot test port hooked up and have a nice hose with the gauge set up so i can see it out the windshield and watch it while loading.
pilot pressure gets up to 500psi like its supposed then drops to zero and bounces around all back the fourth pretty much randomly and at all rpms. turning usually makes it drop to zero. and hitting the breaks turns bumps it up usually but sometimes it doesn't. i can post a video of the gauge if it will help.
when you turn the machine of the gauge sits at like 300psi
i tried turning up the pressure regulating valves up buy the pilot test port.. that didn't seems to make a difference.
So any more ideas what to throw at this machine i really can't think of anything else.
all help is greatly appreciated,
Thank you Jake Harrington