GREAT PLAINS TCN5107, Operator'S Manual, Page: 56 / 78

Great Plains | 566-170M | 04/26/2019 Table of Contents Index 50
TCN5107-5313 Table of Contents Index Maintenance and Lubrication
8. Screw cap on master cylinder reservoir. Start at an outside
hub for step 9.
Refer to Figure 43
9. Unscrew bleeder valve
above brake to open line.
10. Cycle brakes on tractor. Close valve near end of brake
pedal stroke to prevent air from entering at valve. Check
fluid level at reservoir. Top-off as needed to keep full.
11. When fluid appears at valve, close valve.
12. Repeat step 9 through step 11 for the other outside hub,
then the inside hubs.
Refer to Figure 44
13. At brake line tee
, loosen center port connection just
enough to allow air to escape when system is pressurized,
but not enough to allow air to enter.
14. Cycle tractor brakes until no air bubble appear at
connection. Tighten connection.
15. Top off master cylinder reservoir.
Air Brake Maintenance
Reservoir Draining
Refer to Figure 45
Prior to storage, or daily in humid operations, drain water from
the air brake reservoir tank
to prevent rust inside the tank,
and rust contamination of the brake valve system.
1. Set the machine hand brakes.
2. Hold the petcock open until no water flows. Close
petcock.
Air Brake Filter Cleaning
Refer to Figure 46 and Figure 47
The air brake system includes filters
on both the supply and
service lines, to trap any debris introduced during connection
and disconnection.
Figure 43
Brake Cylinder Bleeder Valve
29585
2
2
Figure 44
Brake Line Tee
41873
3
3
Figure 45
Air Brake Reservoir
41998
1
2
1
2
2