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MAINTENANCE
Hydraulic Maintenance
IMPORTANT
Lower the unit to the ground, and relieve hydraulic
pressure before attempting to service any hydraulic
component.
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 hands to search for
suspected leaks. Wear protective gloves and
safety glasses or goggles when working with
hydraulic system.
Figure 4-3: 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 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.
4. Transport locks are provided to hold the implement in
a raised position. See Figure 3-5. 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 "Hydraulic
Lift System" on page 3-6.)
4-4
WARNING
Rear Roller Air System Maintenance
IMPORTANT
Do not at any time operate the Rear Roller Air System
Air Pressure below 15psi. The Air Springs must
maintain a minimum Air Pressure for proper inflation.
Too low of pressure will cause the Air Springs to rub
internally and lead to failure.
Relieve Air System Pressure before attempting to
adjust or service Air Springs and Air Lines. Wear
protective gloves and safety glasses or goggles
when working with Air System. High pressure air
can propel debris at high speed, causing eye
injury or blindness. If you are injured, obtain
medical aid immediately.
Air System should remain pressurized at 90psi.
• If Air System loses air pressure, pressurize Air
System to 90psi and check for leaks by spraying
soapy water on Push-to-Connect Fitting connections
and Air Springs. Repair as required.
• Check Nylon Tubing for rubbing and kinks. Repair as
required. Nylon Tubing ends should be smooth, burr
free. Burrs can cause slow leaks.
• Check Air Spring Guide Rod and Guide Rod Bushing
for excess wear. Relieve all System Air Pressure by
pulling Relief Valve Pull-Ring before attempting to
adjust or service Air Springs and Air Line Nylon
Tubing.
WARNING
F-1021-0719
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