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40
Great Plains Manufacturing, Inc.
NTA607/2007HD
166-283M
04/09/2019
Brake Operation (option)
Cart wheel brakes are optional. There are brake shoe
pairs on each of the two cart wheels. The shoe pairs are
operated by two independent systems:
1. The “service” or “trailer brake” system is controlled
by the tractor. It is connected to the tractor with a sin-
gle hydraulic line or two air lines.
2. The “parking” or “emergency
a
” brake system is con-
trolled by latching handles on either side, connected
by cables to the brake shoes for that drill side.
See also:
Brake Troubleshooting (Option)
Brake Roll-Away Hazard:
Set manual drill parking brake handle before unhitching drill.
Block tires if brakes are not installed, and for extra safety in
case brake system is tampered with or is not in working order.
Parking jack is not sufficient restraint for a drill parked on un-
level ground. An unsecured drill could roll away, causing an
accident resulting in death, injury and substantial property
damage.
Both versions of the trailer brake system to the tractor are
spring-release on the cart. Unless the cart parking brake is set,
cart service braking is released shortly after unhitching the
cart.
Parking Brakes
Cable-operated parking brakes engage and release
independently of the service brake system. There is one
operating handle inboard of each cart transport wheel.
The parking brakes themselves are independent sys-
tems for each side of the cart. None of these three brak-
ing systems can engage or release any of the others.
Refer to Figure 30 and Figure 31
To engage cart parking brakes, pull each handle, on
each side, up, until the over-center action holds the
brake engaged.
To release cart parking brakes, first make sure tractor
brakes are set (or wheels are blocked, or implement is
lowered), then pull the handle, on each side, downward,
and release forward.
If a handle fails to remain in the engaged position, there
may be insufficient tension on the brake cable. See
a. The parking brake system is not a true emergency brake system, as there is no safe way to set the cable-operated brakes when the
cart is in motion. This manual therefore refers to it only as a Parking brake system.
Null4:
Machine Damage Risk:
Make drill parking brake release part of your transport check-
list. The tractor cannot release the drill parking brakes. Trans-
porting with drill parking brakes set will result in tire or brake
system damage.
Figure 30
Parking Brake Engaged
<<<<<<<<
>>>>>>>>
Parking Brake Released
29589
1
Null4:
Figure 31
Parking Brakes Released
31194
Содержание NTA2007HD
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Страница 177: ...Contents Index 173 04 09 2019 Contents Index 166 283M BLANK ...
Страница 178: ...Great Plains Manufacturing Inc Corporate Office P O Box 5060 Salina Kansas 67402 5060 USA EOD ...