Great-plains NTA2007HD Operator Manual User Manual Page 29

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Great Plains Manufacturing, Inc. Contents Index Preparation and Setup 25
04/04/2011 Contents Index 166-283M
Air Brake Hookup
Refer to Figure 9
14. Open petcock at reservoir tank. Drain any water
from tank. Close petcock.
Refer to Figure 10
15. Inspect gladhands before connecting. Clean elas-
tomer seal surfaces . Blow debris out of inlet ports.
Check screen condition.
16. Connect the “Brake”, “Service” or “Control” line first.
This line is Blue-coded.
This line operates the drill brakes.
17. Connect the “Provision” or “Supply” line. This line is
Red-coded.
The Provision line charges a reservoir tank on the
drill. The Brake line operates a valve system which
meters tank air to the master cylinder on the drill.
Braking Hazard:
Do not use the NTA607HD with a “single-line” air brake sys-
tem. This drill is designed for transport speeds that require an
air brake system to be “dual-line”. A single-line tractor sys-
tem cannot charge the tank that powers the drill brakes.
Roll-Away Hazard:
When unhitching, disconnect the red (control) line first. This
sets the brakes on the drill.
Null4:
Hydraulic Brake Hookup
Refer to Figure 11
This is a single hydraulic line, connected to the tractor
“Brake” outlet.
The factory default connector is a
3
4
in poppet-style QD
(Quick Disconnect). If this is incompatible with your trac-
tor, it may be replaced by a connector that mates to, or
can be adapted to:
3
4
in male ORB (O-Ring Boss), or
3
4
in female JIC (Joint Industry Conference, 37° flare).
Null4:
Null4:
Figure 9
Air Brake Reservoir
31227
1
1
2
Null4:
Figure 10
Air Brake Connectors
29646
RED
2
BLU
Null4:
Figure 11
Hydraulic Brake Connector
29647
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