11
MAINTENANCE
When doing any type of maintenance on this machine, always follow the safety steps
described in this manual. Use only authorised genuine parts for replacement.
The cultivator must be adequately supported under its body (Make certain it cannot fall).
Bolts, Nuts and Bronze Bushes
Keep all bolts tight, in particular gang bolts. All bronze bushes should be checked each season
as they are a wearing part and may need replacing.
Gang Bolts
Don’t forget to keep the gang bolts tight with regular checks, particularly when the machine is
new (when the machine is new friction will cause the disc and spacers to wear in). The gang
bolt is vulnerable to damage or breakage if not in tension and damage caused because of
loose gang bolts would void warranty.
Cast Axle Bearings
Don’t lubricate cast axle bearing blocks (this will cause a type of graphite “abrasive paste”
which will cause expensive wear to the high tensile axle.
NOTE: Bearing blocks (Pt 3376) are in matching halves and can be turned over or replaced if
wear occurs.
Lubrication
Lubrication plays a very important part in extending the life of wearing parts.
1) Threaded rod - should be kept covered with a smear of grease to keep nuts and thread
corrosion FREE.
2) Wheel hubs - are pre-packed with grease and should only need attention at the end of
each season, unless dusty conditions cause seals to break down. Force wheel bearing
grease between rollers cone and cage, using hand method or grease packing
equipment. Add grease in wheel hub between hub between caps and fill hub cap.
Wheel Bearing Adjustment
Tighten adjusting nut while rotating or oscillating wheel until the wheel binds slightly. Back off
castellated type nuts between 1/6 to ¼ turn. Wheel should now turn freely, having between
.001” and .010” end play. Lock with split pin securely at this position.
Disc Bearings
These are a flanged greaseable bearing and should be kept adequately lubricated. The seal
inside is designed to allow purging of the grease as long as a normal steady force with a hand
pump gun is applied. A general guideline is every 8-10 hours, perhaps at the end of the days
work. Two to three pumps should be sufficient to prevent moisture ingress and therefore
possible corrosion . Ensure that foreign objects are not allowed to wrap around the bearings. If
they are not removed they may work their way into the bearing and cause failure.
Wheel kit
Check tyre pressure is between 45 and 60 psi. Wheel must run freely on axle and yoke must
be lubricated.
Note: Bearings are replaceable if necessary.
