NTA907HD and NTA3007HD
Maintenance and Lubrication
Great Plains
| 166-207M | 02/26/2019
115
Bleeding Weight-Transfer Hydraulics
If the systems have sufficient fluid for safe operation, prior
to bleeding, perform unfold (page 25), tilt down (page 28)
and lower (page 32) operations. Set circuit to Float.
1.
Review safety advisories and operational advice on
page 111, and on this page, before performing bleed.
2.
Fully close bypass
, Wing
and Center
transfer
valves.
Fully open Transfer valve
Hose lengths do not permit disconnecting base end of
cylinder. Bleed in place.
3.
Fully retract cylinders. Set circuit to Neutral.
4.
Loosen the JIC fittings
at the base end of both
weight-transfer cylinders.
5.
Slowly extend the circuit until fluid appears at a
loosened fittings. Set circuit to Neutral and secure
fittings. Repeat until both fittings are secured.
6.
Fully extend cylinders. Set circuit to Neutral.
7.
Loosen the JIC fittings
at the rod end of both
weight-transfer cylinders.
8.
Slowly retract the circuit until fluid appears at a fitting.
Set circuit to Neutral and secure fitting. Repeat until
both fittings are secured.
9.
If bleeding is complete, restore bypass, down-
pressure and weight transfer valve settings per:
“
Figure 119
Bleed: Weight Transfer Valves
29422
W
C
T
B
k
r
w
c
t
B
W
C
T
Figure 120
Weight-Transfer Bleed Points
29474
4
3
Summary of Contents for NTA3007HD
Page 2: ...Great Plains 166 207M 02 26 2019 Table of Contents Index ii 166 207M Table of Contents Index ...
Page 4: ...2SF24 and 2SF30 ...
Page 177: ...Table of Contents Index Table of Contents Index ...
Page 178: ...Great Plains Mfg 1525 E North St P O Box 5060 Salina KS 67402 Table of Contents Index ...