Great Plains NTA3007HD Predelivery Manual - Manual (Page 66)

62 NTA907HD
166-207Q 03/29/2010
Air Brakes
(see Parts Manual section: Air Brakes)
(see Operator Manual section: Brake Operation)
Refer to Figure 115
Service Brake Operation:
If optional brakes are installed and connected, the
hydraulic/hydraulic or air/hydraulic systems automatically
work in conjunction with the tractor’s own brakes.
Application and release of tractor brakes during tractor
motion applies and releases the service brake system on
the drill.
Know Your Tractor Systems:
Application of tractor Parking and/or Emergency brakes may
or may not operate the drill service brake system, depending
on the design of the tractor systems.
Consult your tractor manual for details on when remote
brake ports are engaged and released.
Refer to Figure 116
Dual-Line Air/Hydraulic Brake Operation
In this system, the “supply” (yellow or blue coded) line
charges a reservoir air tank
on the drill. The “service”
(red coded) line meters air from the reservoir to a
booster cylinder , which operates the drill’s hydraulic
brake lines .
Service Air Brakes Not Instantly Available:
Prior to movement, wait for the tractor air system to reach full
charge after drill hookup. Tractor and drill reservoir tanks
must be pressurized. Drill service braking may not be immedi-
ately available upon tractor hookup with the air/hydraulic sys-
tem.
Air Brake Connectors
Refer to Figure 117
Figure 115
Dual-Line Air/Hydraulic Brakes
29578
Figure 116
Dual-Line Air/Hydraulic Brakes
29578
4
6
5
7
8
5
4
6 5
7
8
Figure 117
Air Brake Connectors
29646
RED
BLU