All older machines share oil between the transmission and bevels gear housings. Typically there is a single dipstick and single fill port with a breather in front of the seat somewhere, but two drain plugs, one more toward the transmission area and the other more to the rear under the bevel gear housing. Both must be removed to get a complete drain.
The seals that typically leak are between the bevel gear case and the steering clutch compartment on each side. If this is allowed to accumulate in the "dry" compartments, it can build up and contaminate the brakes first but soon thereafter will get into the steering clutches. Moisture from condensation and rain, washing etc also accumulates and can rust up things in there if not kept drained away by periodically removing the drain plugs (one on each side of tractor, outboard of the bevel gear compartment drain plug that is near the center of the tractor). The plugs are sometimes removed and left out, but this can allow dirt and mud to build up in the steering clutch compartments.
" Moisture from condensation and rain, washing etc also accumulates and can rust up things in there if not kept drained away by periodically removing the drain plugs (one on each side of tractor, outboard of the bevel gear compartment drain plug that is near the center of the tractor). The plugs are sometimes removed and left out, but this can allow dirt and mud to build up in the steering clutch compartments."
Sounds like an ideal place to drill a hole thru the center of the drain plug, and insert a small cotter pin to keep the hole open.
Thanks for the input.
The bevel gear and gearbox share the same oil and the steering clutches are dry on this machine, what plate did you take off, are we talking of the PTO cover between the drawbar, or one of the half moon plates at the bottom of the final drives?
I guess it would be the pto cover just above drawbar in the center rear of loader, I could see an extra splined shaft at the bottom of the case on the inside.
Those holes would have to be where the drilled plugs go. You have seen the reason not to just remove them.
Our channel highlights machines from the earliest Holt and Best track-type tractors, equipment from the start of Caterpillar in 1925, up to units built in the mid-1960s.
Chapter Fifteen
| Placerville, CAChapter Two
| Stradsett, Nr Downham Market. Norfolk PE33 9HA UKChapter Two
| Faulkner Farm, West Drove, Wisbech, Cambridgeshire, PE14 7DP, UK
Antique Caterpillar
Machinery Owners Club
1115 Madison St NE # 1117
Salem, OR 97301
Terms & Privacy
Website developed by
AdCo
"I also joined a year ago. had been on here a couple of times as a non-member and found the info very helpful so I got a one year subscription (not very expensive at all) to try it out. I really like all the resources on here so I just got a three year. I think its a very small price for what you can get out of this site."
-Jason N