Manitowoc MLC300 Service And Maintenance Manual

Reference Only
Manitowoc Published 11-22-17, Control # 257-02 7-9
MLC300 SERVICE/MAINTENANCE MANUAL POWER TRAIN
7
AIR CLEANER MAINTENANCE
See Figure 7-9 for the following procedure.
The air cleaner requires periodic maintenance due to the
following:
• Clogged air cleaner filters prevent adequate air flow to
the engine, causing poor starting and increased exhaust
emissions.
• An improperly installed or damaged air cleaner can
allow dirty air to be drawn directly into the engine.
Either condition can cause engine damage. To maintain
engine protection and air cleaner filter service life, inspect
the air cleaner at the following intervals.
Daily Inspection
Check the service indicator (5, View B) with the engine
running. The indicator gives a visual indication when it is time
to change the air cleaner filters.
A yellow stem in the indicator window (5b) extends as the air
cleaner filters become plugged. Change the air cleaner filters
when the yellow stem reaches the red zone of the window.
The yellow stem remains locked in place when the engine is
stopped. The reset button (5a) on the top of the indicator can
be pressed at any time. When the engine is started, the
indicator stem returns to the proper reading.
Monthly Inspection
• Inspect the rubber reducers, the reducing elbows, and
the tubing between the air cleaner and the engine for
cracks or other damage that might allow unfiltered air to
enter the engine. Replace worn or damaged parts.
• Check for loose clamps. Tighten as required.
• Check the air cleaner housing (2, View A) for damage
that may allow unfiltered air to enter the engine. Replace
the housing if it is damaged.
• Inspect the inlet/pre-cleaner cover (3, View A) for
obstructions. Clean the cover as required.
• Inspect the dust ejector (4, View C) for damage.
Replace the ejector if necessary.
Changing the Air Cleaner Filters
1. Open the enclosure cover (1, View A).
2. Unlatch and carefully remove the inlet/pre-cleaner
cover (3, View A).
3. Remove the primary filters (2a, View D) gently to avoid
dislodging dust from the filters.
There will be some initial resistance, similar to breaking
the seal on a jar. Using the tab on each filter, move the
end of the filter back and forth to break the seal.
NOTE: The secondary filters (2b, View E) should be
replaced every third time the primary filters are
replaced.
4. Remove the secondary filters by pulling on the plastic
rings. Take care to avoid dislodging dust from the filters.
5. Dispose of the old filters according to local
environmental regulations.
6. Using a clean damp cloth, wipe clean the inside of the
cover, the sealing surfaces, and the inside of the air
cleaner housing. These areas must be clean and free of
grease and loose contaminants.
7. Visually inspect the old filters for leaks. A streak of dust
on the clean side of a filter is a telltale sign. Remove any
causes of leaks before installing new filters.
8. Inspect the new filters, especially the sealing areas.
Never install damaged filters.
CAUTION
Avoid Engine Damage!
• Stop the engine before servicing the air cleaner.
Otherwise, unfiltered air will be drawn directly into the
engine. Never operate the engine without the air
cleaner or filters.
• Before servicing, clean the fittings, the mounting
hardware, and the area around the components to be
removed.
• Replace the secondary filter as quickly as possible to
prevent contaminants from entering the engine
intake.
• Do not attempt to clean and reuse old filters. Discard
them and install new filters. Cleaning filter elements
by impact or compressed air voids the warranty and
can degrade or damage the filter media, leading to
engine damage.

Manitowoc MLC300 Specifications

General

Brand	Manitowoc
Model	MLC300
Category	Construction Equipment
Language	English