Operating The Hsl And Gps; Turning On The Headland; Replacing The Disc Hub Bearing - Landoll 7831 Operator's Manual

OPERATION AND MAINTENANCE

Operating the HSL and GPS

When operating the 7831 HSL with the assistance of
GPS guidance, set the swath width for the label width in
inches less 10" (See Table 4-1.)
GPS Guidance
Model Working Width
7831-25 300 inches
7831-30 360 inches
7831-35 420 inches
7831-40 480 inches
Table 4-1: GPS Guidance

Turning On the Headland

1. To turn the HSL around on the headland, rotate the
main body of the machine; rear upward, until the rear
gauge and row units have ground clearance 10 to 15
degrees of rotation (circuit with red hose wrap.)
2. Once the turn is completed, the HSL can be lowered
back down to the ground.
IMPORTANT
When lowering the HSL back into working mode, it is
imperative the large tilt cylinder be fully extended. If
the large cylinder is not fully extended, the main
body of the HSL will not be free to rotate for to aft and
follow the lay of the land.
4-10
Replacing The Disc Hub
Bearing
1. Always replace the five lip seal.
2. Always clean and re-seal the joint between the disc
3. Always replace the 1-8 self-locking hub nut, (Landoll
GPS Swath
4. Always torque the self-locking nut to approximately
290 inches
350 inches
NOTE
410 inches
Under torquing the disc hub self-locking nut will cause
470 inches premature bearing failure.
Figure 4-7: Disc Hub Bearing
blade and the bearing hub face with silicon or a
similar substitute.
Part No. 1-512-010005-19.)
200 foot pounds of torque.
F-801-1115 Edition