Great Plains 8-10m Press Range SN 12672+ Operator Manual - Manual (Page 35)

35 8-10m Press Range
Operating Instructions
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.
If for any reason the operator needs
to work on the ground engaging
elements it is important that the
machine is safe and secure to do
so. This can be done in two ways:
„ Tilt machine rearwards fully onto the DD
roll. Once fully extended lock the two
taps on the top of the main tilt ram.
„ Fold the machine up completely as if it
were to be transported. It is now
possible to access all working elements
safely from the outside.
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.
5. Servicing and Maintenance
5.3 Disc Hub Maintenance
1. Grease every disc hub until grease
shows from the seals according to the
lubricating intervals outlined on page38.
2. Check disc hubs regularly for tightness.
3. Check main bearing adjustment (twin
taper roller) after 50 hours and thereafter
seasonally by ‘rocking’ the disc as per
Fig. 5.01. If play is evident then the
following procedure should be followed.
Remove bearing caps and locking pins,
tighten nuts to inhibit rotation before
backing off the nuts slightly until disc
rotation is enabled and play is
eliminated (usually between 1/6 - 1/12
of a turn). Re-fit the locking pins. Fit and
securely tighten disc hub caps and flush
with grease until grease shows from
seal area.
4. Regularly examine hub caps, seals,
shear and pivot bolts and all tracking
bolts for tightness and effectiveness
twice weekly or every 50 working hours
(whichever is more frequent).
Fig. 5.01: Checking Disc Bearing Adjustment
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.