GROVE Published 1-20-2017, Control# 483-02 5-15
CD5515-2/YB5515-2 SERVICE MANUAL PREVENTATIVE MAINTENANCE
Check the Air Cleaner Restriction Indicator
The air cleaner is equipped with a filter restriction indicator
(Figure 5-22). 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 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 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 cleaned or new element.
5. Always clean the gasket sealing surfaces of the housing.
An improper gasket seal is one of the most common
causes of engine contamination. Make sure that all
hardened ridges are completely removed, both on the
bottom and top of the housing.
Inspect the Element
1. Don’t be fooled by the appearance of the element, it
should look dirty.
2. Check the element for uneven dirt patterns. The dirty
element is a valuable clue to dust leakage of gasket
sealing problems. A dust trail or pattern on the element
clean side is a sign that the element was not firmly
sealed or that a dust leak exists. Make sure the cause of
the leak is identified and rectified before replacing the
element.
Clean the Element
NOTE: To prevent personal injury, always wear safety
glasses when using compressed air.
Air cleaner elements must be replaced after six
cleanings, every three months or after every 500
hours of operation, whichever occurs first.
1. Clean the filter element with compressed air. Use
compressed air with 2.07 bar (30 psi) maximum
pressure at the nozzle.
2. Direct the air inside the element and then move the
nozzle up and down while rotating the element.
Install the Element
1. Install the safety element over the stud in the housing
and slide it all the way in.
2. Install the element over the stud in the housing and slide
it all the way in.
3. Make sure the gasket is seating evenly. If you don’t feel
the gasket is seating evenly for a perfect seal, you won’t
FIGURE 5-22
Air Cleaner
Restriction
Indicator
Tier 3 Engine
Tier 4 Engine
Reference Only
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