28
Specifications are subject to change without prior notification
From serial number 7027
12 Lubrication and Maintenance
12.4
Tyres
Check the tyre pressure (See Section 8),
uneven tyre pressure can cause the machine
to ripper unevenly.
12.5 Wheel Bearings
Check wheel bearings, with the wheels in the
air spin the wheel, check for bearing noise,
heat, and movement in the bearing. If there is
excessive movement the bearing will need to
be adjusted.
To adjust the wheel bearing preload.
1. Raise the wheels (using the hydraulics).
2. Remove the 4 cap screws from the cap
and remove the cap from the hub.
3. Remove the cotter pin.
4. Tighten the nut while turning the hub.
When there is a tight bind on the bearing,
the parts are seated correctly, approx
150ft/lbs
5.
Back the nut off 1/6 to 1/4 of a turn or
sufficiently to allow .005mm to .02mm end
play.
Note:
Failure to back off adjusting
nut could cause bearing to run hot and fail.
6. Replace the cotter pin.
7.
Replace the cap (use flange sealant).
12.6 Replacing the Tines
To replace or remove tine for your machine
extreme care must be taken. Always use
correct and safe lifting equipment.
1. With a pin punch remove the roll pins in the
tine that hold the point and the shin guard
in place and remove the point and shin
guard from the tine.
2. Remove the shear pin and the front bolt
from the tine that connects the tine to the
main frame.
3. Using the lifting points located on the
top of the tine connect appropriate lifting
apparatus and lift tine out of frame being
careful that the tine doesn’t jam or get
caught when lifting.
4. To replace tine reverse the above steps. Be
sure to fit new roll pins.
12.7 Hydraulics
Hydraulic Circuits
The Deep Digger Series utilises separate
hydraulic circuits for wheel lift, pitch
control and crumble rollers. With care and
maintenance these hydraulics will provide
reliable and long life operations.
General Maintenance
The first and foremost consideration in
maintaining hydraulics in good working
condition is to be meticulous about keeping
your hydraulic circuits clean and free from
contaminants.
Avoid dirty oils and contaminants at all costs.
They will damage hydraulic componentry and
cause functionality problems.
When transporting the Deep Digger, always
use the travel bars (provided) on wheel
lift cylinders. The travel bars are essential
to prevent excessive loading on cylinder
components when transporting.
Phasing Cylinders
When storing the Deep Digger overnight or
for longer periods, make sure the phasing
cylinders are left fully closed to avoid
unnecessary seal damage,
OR
alternatively, coat the shafts with grease or
equivalent.
Filters
Filters are fitted to the supply and return
line of the lift cylinders. The filters have a
60micron sintered element to catch any
contaminants, the filters should be cleaned
after the first 10 hours, then only if the system
is opened for repairs.
