MAINTENANCE 5540F/YB5515 OPERATOR’S MANUAL
6-12 Published 10-21-2011, Control # 055-03
1. Be sure the boom is fully retracted and lowered and the
outriggers are retracted and up.
2. Level the crane, engage the parking brake and shut off
the engine.
3. Visually check the oil level on the hydraulic oil level sight
gauge (Figure 6-18). The hydraulic oil should be 3 mm
(0.125 in) from the top of the sight gauge. If low, fill tank
with clean recommended hydraulic oil.
Check the Air Cleaner Restriction Indicator
The air cleaner is equipped with a filter restriction indicator
(Figure 6-19). The air cleaner element needs cleaning or
replacing if the indicator’s colored piston has popped out and
is visible when the engine is running at high idle.
To check the visual indicator the engine must be running.
The filter restriction indicator is visible through the rear cab
window.
Don’t remove the element for inspection. Such a check
always does more harm to your engine than the good your
inspection can do. Ridges of dirt on the gasket sealing
surface can drop on the clean filter side when the gasket is
released.
Remove the Element
NOTE: Service the air cleaner only with the engine shut
down. Dirt and debris can enter the engine and
cause damage if the engine is operated with the air
cleaner element removed.
1. Remove the housing cover.
2. Remove the wing nut securing the air cleaner element to
the air housing. Remove the element as gently as
possible until you get it outside of housing. Accidently
bumping it while it is still inside the housing means
dropped dirt and dust that may contaminate the clean
side of the air cleaner housing, before the new or
cleaned filter element has a chance to do its job.
3. Remove the wing nut securing the safety element to the
air housing. Remove the safety element.
4. Clean the inside of the housing carefully. Any dirt left
inside the housing could cause damage to the engine.
Use a clean, water-dampened cloth to wipe every
surface clean. Check it visually to make sure it is clean
before installing a new element.
p0396
Hydraulic Oil Sight Gauge
FIGURE 6-18
p0409
Air Cleaner Restriction Indicator
FIGURE 6-19
To Next Page
Loading...
Need help?
General
