922 with no brakes

According to the book, there were a couple of different designs of brake systems. The simplest is an air pedal valve, one small pancake type air cylinder operating one hydraulic master cylinder pushing fluid to all 4 wheels. A one shot system if there ever was one😊 This should be pretty obvious if you look under the floor plates or up under the front of the loader between the boom lift cylinders. The other designs are more complicated, incorporating some manual braking mechanism in the pedal valve/booster/master cylinder.

All the designs used hydraulic drum brakes at the wheels, it's just the booster-master cylinder unit that's different.

You could even be out of brake fluid.

yes check the brake fluid and top it up and work the system. the air will riase up and you don't have to bleed the system. my 922 loses it brakes when the brake fluid runs low. top it up and i'm good for a couple of months. these machines are know for a brake system that will not make you do a lip stand on the windshield like the modern loaders. the 922 has a good transmission that will let you bump the shifter in the opposite direction to help you stop if all else fails.

keep us posted.

thansk
KoO
Published Author

I replaced everything from the air valves through the master cylinders with new parts, bled them and it still doesn't stop worth a dam. When I adjusted the shoes the adjusting cams will go right over center so I guess it's time for shoes. The master cylinders came from NAPA ,cross refrenced by the casting #s, new under $70 each. Diaphragms for the "brake cans" $8 each. No parking spring so no danger opening them up. $200 each for air brake valves, bus type, from a truck supply. $15 for air compressor governor also truck supply. 3/8" steel lines for the air lines. Good luck. Bob