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Hydraulic System
IMPORTANT
Unfold and lower the unit to the ground and relieve
system pressure before attempting to repair, adjust,
or disconnect components.
WARNING
Escaping fluid under pressure can be nearly
invisible and have enough force to penetrate the
skin causing serious injury. Use a piece of
cardboard, rather than your hands, to search for
suspected leaks. See Figure 4-5. Wear protective
gloves & safety glasses or goggles when
working with hydraulic systems. Keep all
components (cylinders, hoses, fittings etc.) in
good repair.
Figure 4-5: Hydraulic Leak Detection
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 of 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.
F-661-0321
TABLE OF CONTENTS
4. Transport lock is provided to hold the implement in a
raised position. See Figure 3-6. Do not attempt to
perform any service work under the implement
without first installing the transport lock. Before
servicing any hydraulic component, unfold and 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 "Purging
Hydraulic System" on page 4-8.)
4-7
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