LeeBoy 8515E - Hydraulic and Electrical System Maintenance

5-24 LeeBoy 8515E Conveyor Paver
Maintenance
Leeboy uses a leak-detection dye that
may turn the hydraulic oil a slight yellow tint.
Change Hydraulic Oil and FilterChange Hydraulic Oil and Filter
Changing the hydraulic oil removes the accumulation
of dirt, water and mechanical wear particles from the
hydraulic oil system. Clean, ltered oil is critical to
optimize hydraulic system operation. The hydraulic oil
system holds approximately 41 gallons.
Contaminated hydraulic oil can
shorten the expected service life of components in
the hydraulic system.
DO NOT drain the hydraulic oil when it
is hot. Hot hydraulic oil can cause serious personal
injury.
Protect your eyes by wearing
safety glasses when working on hydraulic system
components.
Fuel
Filter
Engine
Hydraulic
Charge Filter
Water
Separator
Fuel
Pump
Figure 5-25. Hydraulic Charge Filter
Use the following procedures to change the hydraulic oil
and charge lter:
1. Stop the engine.
2. Allow the hydraulic oil to cool until it is at a warm
temperature.
3. Slowly remove the hydraulic oil strainer ll cap. Do
not remove the strainer portion under the cap.
4. Place a clean, lint-free cloth over the reservoir ll
tube opening and secure in place with tape.
5. Place a container sufcient to hold the hydraulic oil
as it drains from the drain hose by the access panel
on the right side of machine (close enough for the
drain hose to reach).
HYDRAULIC SYSTEM
Check Hydraulic OilCheck Hydraulic Oil
The hydraulic motors and hydraulic cylinders use the
same hydraulic oil reservoir and hydraulic oil supply.
Take care when working with the
hydraulic system to ensure it is completely clean.
Never allow the hydraulic oil level to
fall too low. Pump damage will occur.
DO NOT use your hands on any
hydraulic hoses, ttings or system component when
checking for leaks. Serious personal injury can
result from an oil leak under high pressure. Oil can
be injected under the skin by high pressure. Protect
the eyes by wearing safety glasses.
Check the hydraulic reservoir oil level daily using the
sight gauge on the left side of the paver. (Figure 5-24)
Check the hydraulic oil level when the hydraulic oil is at
normal operating temperature for an accurate reading.
If the hydraulic oil level falls below the bottom line (red or
black in color), add more hydraulic oil.
Fill Cap
Sight
Gauge
Fill
Line
Figure 5-24. Hydraulic Oil Cap and Sight Gauge
DO NOT loosen or remove the
hydraulic oil strainer ll cap when the hydraulic oil
is hot. Always loosen the cap slowly to relieve any
pressure in the hydraulic oil reservoir.
• DO NOT use unltered hydraulic oil.
• Check the hydraulic oil level using the sight gauge.
• Keep the hydraulic oil lled to the correct level.
DO NOT overll the hydraulic oil tank.