Great Plains P15061 Serial No 12682 - Manual (Page 30)

Solo
Operating Instructions
30
5. Servicing and
Maintenance
Follow the safety instructions for
servicing and maintenance.
5.1 Servicing
Your machine has been designed and
constructed for maximum performance,
operational efficiency and operator
friendliness under a wide variety of operating
conditions.
Prior to delivery, your machine has been
checked at the factory and by your authorised
dealer to ensure that you receive a machine
in optimum condition.
To ensure trouble-free operation, it
is important that servicing and
maintenance work is performed at
the recommended intervals.
5.2 Cleaning
In order to ensure that the machine is always
in operating condition and to achieve
optimum performance, perform the cleaning
and servicing work at regular intervals.
Avoid cleaning the roll / disc bearings with a
high- pressure hose or a direct water jet. The
housing, screwed connections and ball
bearings are not watertight.
5.3 Tightening Disc Axles
1. Loosen the bearing mounting bolts on
one pillar. This is to allow the bearing
to move slightly when tightening the
axle. This ensures that the bearings are
not preloaded, which could lead to early
failure.
When the axle needs tightening
again, loosen the bearing that was
not loosened the previous time.
2. Undo and remove the locking plate bolt
and plate.
3. Loosen axle slightly and spin discs
relative to each other / spools and
bearings.
4. Fit one of the disc axle spanners onto
the nut at the opposite end of the gang
that is being tightened. The spanner
should be jammed onto the ground to
prevent it from slipping when the axle
is tightened. Ensure the security of this
spanner is maintained as the axle is
tightened / loosened. Injury can occur if
this spanner is unattended and slips
free,
5. Tighten the axle. Continue to tighten the
axle until the locking plate can be
refitted. DO NOT back the nut off to allow
the plate to be fitted.
6. Refit and tighten the locking plate bolt.
7. Tighten the bearing bolts.
5. Servicing and Maintenance
5.4 Terra-Grip Tine Beams
A pair of shims located within the tine beam
on 380 models are there to retain the
tightness while the machine is in the work
position. These shims create a fulcrum which,
when the lock bolt is tightened, locks the the
wing securely in position by removing
clearances in the pivot. The amount of shims
can be varied to give a gap of 2-3mm at the
point indicated in Fig. 5.02 before tightening
the lock bolt (which will close the gap).