MAINTENANCE AND LUBRICATION
4-7
Gooseneck, Frame, And Deck
Repairing Structural Defects
If any structural defect is found, the fault must be
corrected before further use of the vehicle. To continue
usage could endanger the trailer, its load, personnel,
traffic, and properties. If any cracks or breaks are found,
contact the Landoll factory for repairs. Inspect the deck
daily for broken or missing planks or missing
attachments. Replace any defective parts promptly.
Hydraulic System
General
1. Check the oil level of the tractor wet kit weekly, or
for proper hydraulic
oil. Check the hydraulic oil level with hydraulic
cylinders in the retracted position and the hydraulic
pump disengaged. Enough volume in tank
(approximately 15 gallons) above hydraulic oil level
must be available to accept extra oil from cylinders
when retracted.
2. Overfilling can cause hydraulic fluid overflow during
operation.
3. Hydraulic system pressure relief valves should be set
at 2500 psi.
4. Check hoses weekly for cracks or leaks. If a valve or
line leaks, it should be replaced immediately.
5. Hydraulic oil should be filtered and fluid
contamination needs to be a nominal value maximum
of ISO 4406 19/17/14.
Hydraulic Engine Package
(Option)
The hydraulic engine package should be inspected
weekly to insure continued proper operation. The
inspection should include:
1. Check the hydraulic oil level weekly, or after any
leakage.
for proper hydraulic oil. With
all hydraulic cylinders in the retracted position and
with the engine stopped, check the hydraulic oil level.
2. Check hoses weekly for cracks or leaks. If a valve or
line leaks, it should be replaced immediately.
3. Check the engine oil each time before using. Oil level
should be maintained between the “ADD” and “FULL”
marks on the oil dip stick. For further maintenance
procedures and proper lubrication specifications,
please refer to the engine owner’s manual that was
supplied with the hydraulic engine package.
4. Replace hydraulic filter with new filter at least every 6
months or more often under adverse conditions.
5. Use the fuel recommended for the engine package
installed on you trailer.
Electrical System
1. Maintenance of the electrical system consists of
inspection and minor servicing. Any wire, connection
or electrical component showing signs of corrosion,
wear, breakage or unraveling must be repaired or
replaced.
NOTE
See parts manual for electrical components and wire
diagram.
2. Frayed or unraveling wire must have the defective
section removed and replaced with wire of the same
color and gauge. Seal all connections and insulate.
3. Corroded terminals must have the corrosion
removed, source of corrosion neutralized and the
terminals resealed, protected, and insulated.
4. Fuse or circuit breaker burn-out or blow-out usually
indicates an electrical short-circuit, although a fuse
can occasionally fail from vibration. Insert a second
fuse or reset the breaker. If this fuse immediately
burns out or the breaker trips, locate the cause of the
electrical short and repair.
5. A light that repeatedly burns-out usually indicates a
loose connection, poor system ground, or a
malfunctioning voltage regulator. Locate the source
of the problem and repair. System grounds must be
grounded to bare metal surfaces. Paint, grease, wax,
and other coatings act as insulators. Replacement
lamps must be equivalent to the factory installed
lamp.
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