Fluids for 977H

[bulletpruf]

I recently picked up a 977H. It's an earlier model with dry steering clutches and lever steer.

I'm going to top off all the fluids for now and wanted to ensure I picked up the correct stuff from Napa.

Engine: regular 30W engine oil

Clutch Booster/"Hydraulic Steering Clutch Control": 30W engine oil

Hydraulic System: AW32 hydraulic oil

Final Drives: 90W gear oil (same viscosity as 50W engine oil)

Power Shift Transmission: 30W engine oil?

Thanks!

Scott

 

[timbertime2]

I have the same machine. I use 15w40 diesel engine oil in the engine. 80w90 in the axels. And universal trans/hydraulic fluid in every thing else. That's what Cat told me.

 

[Nordic]

I would do everything the same except I would buy thicker hydraulic fluid, unless you're in a very cold climate. For an older machine you get slower internal bleed down with thicker oil plus better metal to metal protection. For older high hour machines I use AW68 hydraulic oil.

 

[jwal10]

I had 3 977 loaders, the last one was an H series. I had a side dump bucket for digging ditches and log forks and a winch with arch for logging and pulling out the C-6 Euclid when I got it stuck. I welded on 1/2" X 2" flat to the grousers for more traction. Looked more like this one....James

Cat 977 track loader

Was wondering if anyone can help me tell how old this thing is? Unable to come up with a serial number! Help finding it would be awesome!!

www.acmoc.org

 

[dpendzic]

I recently picked up a 977H. It's an earlier model with dry steering clutches and lever steer.

I'm going to top off all the fluids for now and wanted to ensure I picked up the correct stuff from Napa.

Engine: regular 30W engine oil

Clutch Booster/"Hydraulic Steering Clutch Control": 30W engine oil

Hydraulic System: AW32 hydraulic oil

Final Drives: 90W gear oil (same viscosity as 50W engine oil)

Power Shift Transmission: 30W engine oil?

Thanks!

Scott

View attachment 72092

Cat now recommends there td-4 oil in all hydraulic gear boxes--even old machines