HD5G in Idaho: Special Grease Gun?
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=180544
Printed Date: 02 Dec 2024 at 9:51pm
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Topic: HD5G in Idaho: Special Grease Gun?
Posted By: Les Kerf
Subject: HD5G in Idaho: Special Grease Gun?
Date Posted: 15 May 2021 at 9:37am
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My Son-in-law has located and purchased a used idler wheel assembly for his HD5G; it appears to be serviceable and ready for installation. I have downloaded PDF files of the Operator's Manual and Service Manual for these HD5 Series machines. The Operator's Manual on Page 44 shows a vague picture of the special grease gun used for lubricating the idlers and rollers, with very strict admonition that "This lubricator and special nozzle MUST be used to inject grease into the truck wheel, track idlers, and track support rollers as the use of "high pressure" lubricating equipment will damage the seal boots which are part of the positive seal assemblies". Where might one be able to purchase this elusive "special lubricator", or is there a suitable substitute that can be fabricated? Thanks for the help  |
Replies:
Posted By: Hyperpack
Date Posted: 15 May 2021 at 11:08am
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I have seen the grease gun tips in McMaster Carr, They are called button head fittings. I have the low pressure gun I use on my H3 with that type of fitting, after a couple pumps the roller gets full of oil and it gets hard to pump. I have used a high pressure grease gun and if you go slow you can feel when its full and stop.
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Posted By: Les Kerf
Date Posted: 15 May 2021 at 11:36am
Hmmm... I am familiar with button head fittings, but this machine is somewhat different. There is a plug that must first be removed, and then there is simply a hole drilled into the shaft into which the lubricator nozzle is inserted (and I quote): "3. Insert the special nozzle of the lubricator into the shaft as far as it will go and hold it in that position. 4. Pump grease into the wheel until clean grease is forced out the end of the shaft around the special nozzle. This will indicate the wheel is full of clean grease." Then replace the plug. Maybe I can rig some sort of an adapter for a regular grease gun, the just use it with caution. Thanks for the input |
Hyperpack wrote:Posted By: Ray54
Date Posted: 15 May 2021 at 4:45pm
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I don't know what is inside the nozzle that was for the AC sealed 1000 hour track rollers. But looks like a piece of 1/8 inch pipe about 3 inches the square tube like and then more pipe about 6 inches over all. The end the grease comes out is beveled, but nothing really catch like a grease gun nozzle. Here a white colored grease was used. Unscrew the plug, shove the tube in as far as possible then start pumping. Old grease that was dark gray or brown come out keep pumping until new white grease is coming out. With the plug out I don't see how you would over pressure the roller and take the seal out. The Caterpillar style with the button head I see how you could blow the seal out. The more I think about the process, try a piece of 1/8 inch pipe so you add new grease to the rear and pump until the new grease is coming out the removed plug. I was never sure how the grease sealed inside could go bad,  as with most things any grease is so much better than none.The old grease for the AC rollers was some thinner than the 0 or double 00 grease we used in the Cat grease every 10 hour. So I think the modern corn head grease might be better than normal grease, but only guessing.
 So I could be wrong. |
Posted By: Lee Bradley
Date Posted: 15 May 2021 at 9:13pm
| I remember that grease gun and adpater. Came with our HD-5 didn't come with our HD-6. AC had decided more problems were being caused by opening the roller and greasing it an just leaving it sealed. Same rollers on the HD-6 but now they were 'Sealed Rollers'. |
Posted By: Coke-in-MN
Date Posted: 16 May 2021 at 10:33am
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HD5 rollers and idlers were lubed by OIL or semifluid as they are TIMKEN bearings . The idea of the special grease gun was to fill the roller until fluid ran back out of fill hole. It's non-pressure gravity system where the special pipe was inserted into roller cavity and fluid was added internally - then excess or overfill would run back along the opening around the pipe to let you know unit was full. ------------- Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something. "Challenges are what make life interesting; overcoming them is what makes life meaningful." |