180 power director issues

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   Hi, my uncle has a 180 Allis and he is having some problems with the power director. He says that sometimes it won't engage when going from neutral to high or low and also sometimes won't disengage. He says once it engages it doesn't slip. He's thinking something is maybe hanging up or a hydraulic port or orfice is partially plugged. He also said that at lower rpms there is a hydraulic chatter or vibration. So, could the hydraulic pump possibly be bad or not developing the needed pressure to shift the power director??  I haven't been around the 100 series much so I don't totally understand how the power director works but I do understand that the power director is hydraulic if I'm not mistaken. Any ideas on where to start diagnosing??

Thanks!
Ben

Edited by baverwolf - 22 Apr 2017 at 10:11am

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baverwolf Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 24 May 2010 Location: SE Montana Points: 828	Post Options Post Reply Quote baverwolf Report Post Thanks(0) Quote Reply Topic: 180 power director issues Posted: 22 Apr 2017 at 10:10am
	Hi, my uncle has a 180 Allis and he is having some problems with the power director. He says that sometimes it won't engage when going from neutral to high or low and also sometimes won't disengage. He says once it engages it doesn't slip. He's thinking something is maybe hanging up or a hydraulic port or orfice is partially plugged. He also said that at lower rpms there is a hydraulic chatter or vibration. So, could the hydraulic pump possibly be bad or not developing the needed pressure to shift the power director?? I haven't been around the 100 series much so I don't totally understand how the power director works but I do understand that the power director is hydraulic if I'm not mistaken. Any ideas on where to start diagnosing?? Thanks! Ben Edited by baverwolf - 22 Apr 2017 at 10:11am

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tbran Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Location: Paris Tn Points: 3315	Post Options Post Reply Quote tbran Report Post Thanks(0) Quote Reply Posted: 22 Apr 2017 at 10:41am
	90% chance it is mechanical - broke clutch plates in the pd clutch unit. the unit not disengaging is the culprit to diagnostics. You can pull the kick panel and check the hyd pressures easily. IF the pressures are close to correct - you have a mechanical portion of the pd system that had failed.
	When told "it's not the money,it's the principle", remember, it's always the money..

Joe(TX) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Weatherford. TX Points: 1682	Post Options Post Reply Quote Joe(TX) Report Post Thanks(0) Quote Reply Posted: 22 Apr 2017 at 11:54am
	The first think to check would be the linkage to the valve. Make sure it is fully shifting the valve. Next I would be checking the pressures. You may not be getting enough flow at low rpm to maintain pressure.
	1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 20697	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 22 Apr 2017 at 12:37pm
	Power Director linkage is pretty much trouble free. Start with two 500 psi gauges connected at the manifold below the platform where the brake latch pawl pivots on. One allen head plug is for Low and the other for High. Your Uncle needs to pay attention when the tractor doesn't move if the POWER STEERING is working or not, as the same pump is for both functions. I assume he's checked the hydraulic oil level ?? which is to the LEFT of the gearshift--a threaded-in dipstick. I'm thinking broken discs inside, but time and testing will tell. Removal of the side cover and a visual inspection of the clutch will reveal broken plates pretty easily.

MACK Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 17 Nov 2009 Points: 7664	Post Options Post Reply Quote MACK Report Post Thanks(0) Quote Reply Posted: 22 Apr 2017 at 10:17pm
	Pressure regulator sticking at idle is common on the 180. Nut on bottom of valve. Remove valve and polish it up. MACK

baverwolf Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 24 May 2010 Location: SE Montana Points: 828	Post Options Post Reply Quote baverwolf Report Post Thanks(0) Quote Reply Posted: 22 Apr 2017 at 10:28pm
	Thank you guys for all the good advice and tips. Ill pass on the info to my uncle and hopefully he can get something figured out. In the meantime, keep the good advice coming! Thanks! Ben