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- No.416 Jianye Road South Jinqiao Area Shanghai, China
Loader gearbox started slowly and weakly
hydraulic problem
· You need to listen to your tractor. With tractor running and 3 point hitch down raise 3 point to top. Listen to hear if engine changes it's tone. Then push lever forward and listen to hear if engine goes and runs smother. If it does then it is dead heading the hydraulic system and will make the loader slow.
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D75S
· I have a D75S-3 track loader that I was using when all of a sudden reverse got real weak and slow? Still moves, but not like it should in reverse. No problems going forward. Hoping someone on here could get me started on what to look at first. Machine doesn't get used that much it sits a lot . Oil and filters are fresh.
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What Should I Do If The Excavator Is Weak And Slow When
When the hot car is slow, check the main pressure first. If the pressure is too low (at least 3.2MPA), then check whether the gear oil pump (Doosan vehicle self-pressure regulator) leaks and whether the main filter element (filter) is caused by dirt. block.
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Front
Front-end loaders carry, lift and deposit loose materials: sand, soil, stone, quarry slag, coal, ore and many other similar loads. The front-end loader needs tremendous power to lift and tilt the bucket located at the end of two long arms. A powered hydraulic system (or circuit) provides the necessary power to lift.
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Crawler Loader/Dozer Common Faults
· The loader lift arms drift down quickly about 2-3 inches when the control lever is released. After the initial quick 2-3′ drop the cylinders continue to slowly leak down. I repacked the cylinders about 4 years ago (100 hours) using genuine Case kits. The loader has always drifted down slowly I just assumed it was a leaky hose.
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John Tractor Hydraulics Troubleshooting Guide
Loader Problems. When it comes to the loader, the boom arms may not rise or rise slowly. This issue could be partly because of boom and bucket overload, low oil flow from the pump, auxiliary circuit on-over relief, control linkage binding, cylinder shafts are bent or the pump is damaged.
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John Tractors Information
John started blowing black smoke and stoped running. John w/ 542 SL Loader loses power after rear PTO is engaged location of safety switch JD w/ cab Re synchronizing gear problems 345 wont start Jhon 350C John F935 mower John 4x4 ….
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I am frustrated with my loader and need advice
It seems possible that the entire loader is weak but the dump circuit is still strong enough to lift the front. I'm not sure how the pressure test was done. If it was hooking a gauge into the high-pressure line with a t-fitting then there would be little pressure unless either the loader or 3ph were used under heavy loads.
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mahindra problems
· picked up 1 scoop of limestone, loader immediately sprung sideways, after asking mahindra for warranty help they simply refused. Loader is cheap junk metal. recently I wash bush hogging with it and the two frame bolts on the left side fell out. the frame shifted 4 inches, the side panel flew into the fan, the radiator sprung a leak.
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D75S
· I have a D75S-3 track loader that I was using when all of a sudden reverse got real weak and slow? Still moves, but not like it should in reverse. No problems going forward. Hoping someone on here could get me started on what to look at first. Machine doesn't get used that much it sits a lot . Oil and filters are fresh.
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Tech Tip: Diagnosing Starter Cranking Problems
Slow Crank: The starter will crank, however, the engine RPM is slow to start the vehicle. Click No-Crank: The solenoid clicks but the starter doesn't crank. No-Click No-Crank: The solenoid doesn't click and the starter doesn't crank. Once you've identified which problem you're dealing with, then you can start to remedy it.
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John 450 issues
· One word of caution on shifting from forward to reverse "on the fly" without comming to a complete stop on a 450 C dozer.They have a weak spot on the transmission casting back at the pinion bearing housing.The chamferd edge that holds the bearing away from the ring gear is only about an 1/8 inch thick .My buddy found this out the hard way.
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Mahindra problems not pulling and slow loader/hydraulics
· Slow hydraulics indicate improper oil supply, bad oil, or weak pump. First check the hydraulic filter, and make sure the oil is not foamy or milky. Then check oil supply at the pump, as well as the pump pressure. Slipping..... If you do have a shuttle check the oil level and condition of that oil. If the level is low, full it of course.
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Hydraulics Trouble Shooting Guide
Slowly (insufficient or no delivery flow) As 1 A 1 thru 7 As 2 A 1. internal leakage due to wear 2. pump defective 3. inlet and return lines connected wrong As 4 B As 5 B As 6 B with sequential control: 6. sequence valve setting is too high, or valve is defective E Excessive Operating Temperature 1. reduction in efficiency due to wear.
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Jerking loader, 3 point hitch and weak front wheel assist
· Back to the hydraulics: I went out today and started the tractor. 14F outside, so cold. Took forever to get the loader to move. Hydrostat pedals groan like before and very jerky 3 point and loader up only. Down is slow gradual. I adjusted the flow control lever and it made zero difference. Very slow ….
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Slow/Weak Hydraulics on '72 JD Front End Loader
· Front end loader wasn't fast moving when I got the tractor 6 months ago, but was quick enough. It had enough power to bring the front end off the ground easily. Discovered some water had gotten into the hydraulics from un-booted gear shift levers. Drained and put in new fluid. Still worked ok, but didn't improve the speed or power as I had hoped.
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Case 580B weak in foward and reverse, ideas?
Loader and backhoe work great, seem to have full power. What should I check? AJ: Should have a torque oil pressure gauge,check the reading,check to see that there is enough oil in the torque,pull the stick and smell the oil for burned clutch discs,like brake pads stink,make sure the brakes are off and you are using the right gear. AJ: Anthony.
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Troubleshooting
Weak or broken pressure regulating valve spring: Do Transmission System Pressure Test: Transmission pump suction screen restricted: Remove and clean screen: Low transmission pump flow due to worn pump: Do Transmission Pump Flow Test: Transmission control valve or gasket leakage: Remove valve and inspect gaskets: Clutch cut-off valve sticking.
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Front
Front-end loaders carry, lift and deposit loose materials: sand, soil, stone, quarry slag, coal, ore and many other similar loads. The front-end loader needs tremendous power to lift and tilt the bucket located at the end of two long arms. A powered hydraulic system (or circuit) provides the necessary power to lift.
Send message »
Hydraulics Trouble Shooting Guide
Slowly (insufficient or no delivery flow) As 1 A 1 thru 7 As 2 A 1. internal leakage due to wear 2. pump defective 3. inlet and return lines connected wrong As 4 B As 5 B As 6 B with sequential control: 6. sequence valve setting is too high, or valve is defective E Excessive Operating Temperature 1. reduction in efficiency due to wear.
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D75S
· I have a D75S-3 track loader that I was using when all of a sudden reverse got real weak and slow? Still moves, but not like it should in reverse. No problems going forward. Hoping someone on here could get me started on what to look at first. Machine doesn't get used that much it sits a lot . Oil and filters are fresh.
Send message »
Loader running slow after grapple work
· Re: Loader running slow after grapple work Test your pump for volume and see if it is pumping the 9.8 GPM. Remove a cyl retract hose and place in a ….
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mahindra problems
· picked up 1 scoop of limestone, loader immediately sprung sideways, after asking mahindra for warranty help they simply refused. Loader is cheap junk metal. recently I wash bush hogging with it and the two frame bolts on the left side fell out. the frame shifted 4 inches, the side panel flew into the fan, the radiator sprung a leak.
Send message »
hydraulic problem solved
· Changed all Oils, both filters, cleaned screens (2). Bucket worked great for an hour or so then started to slow and not lift much weight. Rebuilt pump with O rings and seal, a little better but got even worse than before. Replaced Pump ( that cured bypass problem ) 3 PT still OK but bucket slow ….
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This module describes the basic job steps, potential
loader, striking the ground) to increase stability. other machines or people. D) Caught in pinch D) Keep doors latched securely. points. E) Overturning E) Travel in proper gear at loader. acceptable speeds for condi-tions. Avoid loose material, slick spots, and weak ….
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Loader Parts Source.com
Quality skid steer parts for Bobcat, Case, John , New Holland, Scat Trak and more. The source for all your skid loader parts needs.
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Hydraulic..slowly..drops..the foot pedals to tilt it up
· Loader..slowly..Push the control forward and it will lift the tractor We have a 416C, arrangement 12W, SN4ZN that won't lift the loader bucket when it is loaded. Empty it lifts, slowly.
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