Great Plains NTA1300 Predelivery Manual - Manual (Page 27)

25 7/29/2004 NTA 1000 and NTA 1300 148-528Q
Great Plains Mfg., Inc.
Bleeding Tongue Cylinder
1.
Check hydraulic fluid in tractor reservoir and fill to
proper level. Add fluid to system as needed. Tongue
cylinder capacity is 1.89 litres (one-half gallon).
2. Raise and safely support hitch, transport frame and
front tongue.
3. Unpin rod end of tongue cylinder. Block, wire or other-
wise safely support cylinder so when rod end is fully
extended it does not contact anything.
4. Cycle cylinder completely in and out at least three
times to purge air from cylinder and hoses.
5. Fully extend cylinder and repin rod end.
6. Recheck tractor reservoir and fill to proper level.
Bleeding Fold Hydraulics
Check hydraulic fluid level in tractor reservoir and fill to
proper level. Add fluid to system as needed while cycling
new cylinders. Fold hydraulic capacity is 5.6 liters (1.5 gal-
lons). If drill fold cylinders have not been extended:
1. Crack fittings at base end of cylinders. Extend cylin-
ders to purge air from system.
2. Crack fittings at rod end of cylinders. Retract cylinders
to purge remaining air from system.
3. Tighten all fittings. Extend cylinders and pin to drill
lugs.
If drill cylinders have been extended:
1. Unfold drill so that fold cylinders are completely ex-
tended. Lower drill to ground. Unpin rod ends of fold
cylinders.
2. Crack fittings on rod end of cylinders. Purge air from
cylinders by retracting cylinder rods.
3. Crack fittings at base end of cylinders. Extend cylin-
ders to purge remaining air from system.
4. Tighten all fittings. Repin cylinders to drill.
Set-Up