Landoll 317D, Operator'S Manual

Page: 44 / 88

4-4 F-486-1011 Edition
MAINTENANCE AND LUBRICATION
4. Scrape, sand, prime, and repaint areas where finish
is missing or where there is evidence of corrosion.
5. Replace any missing or illegible decals. Replace any
missing or damaged reflective tape.
6. After disassembling any components, thoroughly
clean dirt and old lubricant from all parts. Do not use
a wire brush on any bearing parts or surfaces — use
a stiff bristle brush. Do not use compressed air, or
spin bearing parts when cleaning. These practices
can throw solvents, dirt, or metal particles into your
eyes. Dry clean parts with lint free, clean, soft,
absorbent, cloth or paper. Wash and dry hands.
7. Inspect seals, seal wiping surfaces, bearing caps,
and bearing cones for wear, pitting, chipping, or other
damage.
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 or hydraulic
engine power hydraulic tank weekly, or after any
leakage.
See Table 4-1 for proper hydraulic oil.
Check the hydraulic oil level with hydraulic cylinders
in the retracted position and the hydraulic pump
disengaged.
2. Overfilling can cause hydraulic fluid overflow during
operation.
3. Dock leveler flow bypass regulator must provide 2.2
to 2.8 gallon per minute to dock leveler valve.
4. Hydraulic system pressure relief valves should be set
at 2500 psi.

WARNING
Hydraulic Engine Package
1. Check the hydraulic oil level weekly, or after any
leakage.
See Table 4-1 for proper hydraulic oil.
Check oil level with the undercarriage cylinder in the
retracted position and with the engine stopped.
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 “L” and “F” marks
on the oil dip stick. For further maintenance
procedures and proper lubrication specifications,
please refer to the engine owners 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 your semitrailer.
If more oil than specified is sent to dock leveler
valve, damage to dock levelers and personal
injury can occur. If less oil than specified is sent
to dock leveler, they will not operate or operation
will be erratic.