4-40
F-524-0410 Edition
OPERATION AND MAINTENANCE
Wheel Bearing Maintenance
Wheel bearing maintenance should be performed at the
beginning of every season of use. Check the wheel
bearings periodically for excessive end play. If needed,
adjust or replace them using the following procedure:
1.
Place the frame on blocks or stands sufficient to lift
the tire clear of the ground.
2.
Remove the tire.
3.
Remove the hub cap, cotter pin, slotted nut and
washer.
4.
Remove the hub. Clean and inspect the bearings and
hub cavity. Replace any worn or defective parts.
5.
Repack the bearings using a high-quality wheel
bearing grease.
6.
Insert the inner bearing into the hub and install a new
seal.
7.
Slide the hub, bearing, and seal onto the spindle.
8.
Install the outer bearing cone, washer and slotted
nut.
9.
Tighten the slotted nut while rotating the hub until
there is a slight resistance to wheel rotation. Then,
back the slotted nut off one notch, until the wheel
rotates freely without end play.
10. Install a new cotter pin and replace the hub cap.
Hydraulic Maintenance
1.
Check the tractor hydraulic fluid level per tractor
owner's manual and after any leakage. Check fluid
level with the cylinders in the retracted position.
2.
If a cylinder or valve leaks, disassemble the parts to
determine the cause of the leak. Any time a cylinder
is opened up, or whenever any seal replacement is
necessary, it is advisable to clean all parts and
replace all seals. Seal kits are available from your
Landoll dealer.
3.
Check all hydraulic hoses weekly. Look for binding or
cracking. Replace all worn or defective parts
immediately.
IMPORTANT
Lower the unit to the ground, and relieve hydraulic
pressure before attempting to service any hydraulic
component.
4.
Transport locks are provided to hold the implement in
a raised position. Do not attempt to perform any
service work under the implement without first
installing the transport locks. Before servicing any
hydraulic component, lower the implement to the
ground and relieve all system pressure. If a hydraulic
component is disconnected, repaired, or replaced, it
will be necessary to purge the system of air before
operation.
See “Folding/Unfolding the Grain Drill”
on page 4-5 and “Hydraulic Lift System” on
page 4-13
on how to purge the hydraulic systems.
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