Farm Equipment - 180 power director issues

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180 power director issues

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=137649
Printed Date: 12 May 2024 at 1:11pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 180 power director issues

Posted By: baverwolf
Subject: 180 power director issues
Date 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

Replies:

Posted By: tbran
Date 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.

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When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: Joe(TX)
Date 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.

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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

Posted By: DrAllis
Date 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.

Posted By: MACK
Date 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

Posted By: baverwolf
Date 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