Cat 922

Hi Dan,
welcome to the BB.
Your 922 should have 2 levers to the left side of the operators seat.
One is for speeds 1 and 2 within the poweshift trans.

The other behind it is for 2 or 4 wheel drive within the transfer case. These gears are high range 2 wheel drive for roading, and low range 4 wheel drive for loading.

Your pressure gauge in normal conditions should read around 220+-5 psi warm oil High Idle, 200 psi is possibly still OK. It should also read around 180 psi min at Low Idle. These tests are done in all gears but with the range trans/lever in Neutral. These figures are from my Oct. 1965 Cat School notes and may or may not be fully correct.
Low Idle in neutral and warm engine = 600+-10 rpm
High Idle in Neutral warm engine = 2535+-30 rpm
Full Load 2400 rpm. Whilst travelling, drag the bucket and apply brakes as needed in a high gear to stall the engine down to 2400 rpm and read boost pressure in inlet manifold at 19+-2.5 Inches of Mercury. or about 8.2 to 10.6 psi. Sorry my old rack chart does not have the Torque Converter Stall RPM's for these older machines.
Get back to us with your findings and we can take it from there to help get you going somewhat better, taking into consideration the figures above are for a tip top unit !!!!
Oh Yeah, the fill and dipstick for the trans should be under a trap door in the floor of the Op's compartment between the Op's legs.
Hope this helps.
Cheers,
Eddie B.

Thanks for the info on the pressure gauge! I dont have a tach on the machine so I will have to guess at it. I dont recall seeing the pressure gauge move at all from around 100. I did check the dipstick under the trap door and it is clean and full. So maybe either the pressure gauge is not working or there is a issue with the clutch pressure.

These machines were desighned more for loading material than dozing and yes, they would hardly slip a tire due to the unmatched TC. I recall that I installed a matched set of TC parts so that the customer could pull off a load of cut silage. It would not pull as much as a farm tractor until we installed a matched set. This was to allow the engine to keep it's RPM's up to have good hydrulic response in original set up.

I think all of that class CAT loaders (922, 910, etc) have 15.5 x 25 tires.
next size up (944, 920 etc) 17.5 x 25 tires

[quote="ccjersey"]I think all of that class CAT loaders (922, 910, etc) have 15.5 x 25 tires.
next size up (944, 920 etc) 17.5 x 25 tires[/quote]

The early 922A series had 1400x24 as standard, when the B series with the higher arched rear fender and longer wheelbase came out 15.5x25 was the standard with 1400x24 or 17.5x25 offered as an option. The 920 came standard with 15.5x25 and 17.5x25 optional. The 930 was standard 17.5x25 and 20.5x25 optional.

Thanks for all the info. The tires I have are 14.00 x 24 which I just blew one out this weekend. The loader pushes good for what it is but, I will check your recomendations because it feels like there should be a little more power. This is a great website for info on these old machines.

rosco, if you have a serial number we can tell if it's an A or B model...oh and pics are always welcome too.👍

Here are a couple of videos of the 922.

http://www.youtube.com/watch?v=49kCYv3pT2k&feature=player_detailpage

http://www.youtube.com/watch?v=yMA92UyxE1M&feature=player_detailpage

http://www.youtube.com/watch?v=YkAFFhkzLg0&feature=player_detailpage