HD5G in Idaho: Special Grease Gun?

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

Hyperpack wrote: I have seen the grease gun tips in McMaster Carr, They are called button head fittings.

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

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'.