HD6G Crawler Loader wont go in forward or reverse
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=109299
Printed Date: 27 Jul 2025 at 10:19am
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Topic: HD6G Crawler Loader wont go in forward or reverse
Posted By: Wadeland
Subject: HD6G Crawler Loader wont go in forward or reverse
Date Posted: 22 Jul 2015 at 9:55am
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Good morning. I am new to the forum. I have a 1971? HD6G-21196. Every thing was running strong and now when I engage the Engine clutch operating lever, it will barely move or not move at all (in forward or reverse). I am not very familiar with the machine. Any ideas on what could be wrong, what I need to look for. what can be done to fix it. Any help would be great. Thank you, Wade uploads/14094/Loader_and_bobcat.jpg" rel="nofollow - Loader_and_bobcat.jpg |
Replies:
Posted By: Ray54
Date Posted: 22 Jul 2015 at 10:59am
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If I am understanding you,you have a clutch and not a power shift. If my assumption is correct you need to adjust the clutch. Those better than I at explaining can tell you how to adjust it.A operators manual would be very helpful. |
Posted By: Wadeland
Date Posted: 22 Jul 2015 at 11:18am
| I believe it would be a clutch. From research it is either a "Rockford" engine clutch or an "Auburn" engine clutch. I am not sure what the difference is or how to know which I have. I am praying that is just needs adjustment. But it is all new to me and any suggestions/recommendations/tips would be greatly appreciated. uploads/14094/Allis_Chalmers_HD6G.jpg" rel="nofollow - Allis_Chalmers_HD6G.jpg |
Posted By: michale34
Date Posted: 22 Jul 2015 at 12:39pm
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it should have a oil clutch if it has a oil filter on the side of the clutch housing you might want to change it |
Posted By: gemdozer
Date Posted: 22 Jul 2015 at 2:03pm
| If your HD6 have a oil cluch you could check your oil cluch level and your cluch oil filter and if your machine have dry cluch she should need a cluch adjustement |
Posted By: Wadeland
Date Posted: 22 Jul 2015 at 4:34pm
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I will check and see if it has an oil filter on the side of the clutch housing. I will keep you updated. Thank you for the quick feedback. |
Posted By: DiyDave
Date Posted: 22 Jul 2015 at 5:52pm
| I think your antigravity unit is in overdrive... |
Posted By: Dozer
Date Posted: 22 Jul 2015 at 6:48pm
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What is the complete serial number stamped on back of the final drive housing? 1969 serial numbers 21432 to 22271 If you engage the clutch and the engine RPM remains the same the clutch is slipping. If the RPM decreases the machine is bound up elsewhere. You can remove the access plate and observe the drive shaft. |
Posted By: doctorcorey
Date Posted: 22 Jul 2015 at 7:29pm
| I think this a power shift w torque convertor. Probably low on fluid or suction filter clogged. Does it have gauges for the transmission? |
Posted By: donoman
Date Posted: 24 Jul 2015 at 3:24am
| If it was powershift it would have a HD7G prefix to the serial number, so it sounds like the clutch may be slipping. |
Posted By: doctorcorey
Date Posted: 24 Jul 2015 at 7:54am
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donoman wrote:Posted By: Wadeland
Date Posted: 24 Jul 2015 at 9:41am
| Thanks for all of the help! I haven't gotten a chance to get back out to it to take a closer look. I am hoping I will get out there this weekend and let y'all know what I find. |