Caster stabiliser brakes, Coulter hubs (option), Hopper lid seals – Great Plains NTA3007 Operator Manual User Manual
Page 159: Seasonal

Great Plains Manufacturing, Inc.
Maintenance and Lubrication
155
2012-07-02
166-371M
Caster Stabiliser Brakes
One UHMW brake piston each caster;
2 total.
Replace UHMW piston
if its length is less than
3.2 cm (1
1
⁄
4
in). Also replace piston if missing, damaged,
tilted, or top of piston is visible.
To set spring tension:
1.
Loosen the jam nut
3
⁄
8
in (9.5mm) hex
wrench to back the set screw
out of contact with
spring above the piston
.
2.
Drive the set screw in until it just makes contact with
the spring.
3.
Measure the set screw reveal (length of exposed set
screw) above the hex weldment. Subtract
3
⁄
4
in
(19mm).
4.
Drive the set screw in until the reveal matches the
reduced figure. Tighten jam nut.
Use more tension as needed to eliminate caster vibration
during highway transport.
Coulter Hubs (Option)
1 zerk per coulter; 48 or 66 total
Type of Lubrication: Grease
Quantity: Until grease emerges
Note: These zerks only serve the coulter hubs. Coulter
arm pivots are lubricated from the grease banks.
Hopper Lid Seals
1 seal per hopper lid (underneath lid);
1 or 2 per implement.
Inspect seasonally. Inspect if air leaks are detected.
Replace if missing, torn, permanently compressed, or
otherwise damaged. Do not tightly close lids for
extended periods.
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