Great Plains NTA3007 Operator Manual - Manual (Page 140)

136 NTA907 or NTA3007 Table of Contents Index Great Plains Manufacturing, Inc.
166-371M Table of Contents Index 2012-07-02
Charge and Bleed Brake System
Refer to Figure 138
7.
Fill the reservoir with brake fluid, grade:
DOT3 / SAE J1703, or
DOT4 / SAE J1704 / FMVSS 116, or
DOT5.1
System capacity: less than 1 litre
Machine Damage Risk:
Do not use brake fluid: DOT5 / SAE J1705
DOT5 and DOT5.1 are completely different fluids.
DOT5.1 is compatible with the braking system.
DOT5 is not.
If there is any chance of confusion in your shop, use
DOT3 or DOT4.
8. Screw cap on master cylinder reservoir. Start at an
outside hub for step 9.
Refer to Figure 139
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 140
13. At brake line tee
, loosen centre 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.
Figure 138
Brake Master Cylinder
29584
1
1
Figure 139
Brake Cylinder Bleeder Valve
29585
2
2
Figure 140
Brake Line Tee
29578
3
3