Manitowoc 18000, Service Maintenance Manual, Page: 252 / 316

Reference
Only
POWER TRAIN 18000 SERIVCE/MAINTENANCE MANUAL
7-8
Published 12-05-17, Control # 035-23
Tier 4 Current Production
See Figure 7-7 for the following procedure.
The Tier 4 intake assembly has mounting brackets (4) that
are fastened to the engine air cleaner assembly (3) with
three rubber elbow reducers (1), clamps (2), and straight
adapter tubes connecting it to the eng[ine. Servicing the air
cleaner is an important function because:
•
Clogged air cleaner filters will 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.
Inspection
To maintain engine protection and filter service life, inspect
the following areas at regular intervals:
Daily
Check service indicator (6) with engine running. The
indicator gives a visual indication when it is time to replace
the filters.
• A yellow flag in the indicator window extends as the
filters become plugged.
Replace filters when the
yellow indicator reaches the red zone at the end of
the indicator.
• The yellow flag remains locked in place after the engine
is stopped. When the filters are replaced, push button
(7)
in to reset the indicator.
Monthly
1. Inspect rubber reducers (1) between air cleaner and
engine for cracks or other damage which might allow
unfiltered air to enter the engine. Replace worn or
damaged parts.
2. Check air cleaner assembly housing (3) for dents or
other damage that may allow unfiltered air to enter
engine. Replace housing if damaged.
3. Check for loose clamps (2). Tighten if necessary.
4. Inspect engine intake pre cleaner (5) for obstructions or
damage. Clean as required.
Service
Service the air cleaner and its primary and secondary filter
elements per the intervals specified by the engine
m a n u f a c t u r e r a n d p e r t h e e n g i n e m a n u f a c t u r e r ’s
instructions. An illustration of these instructions is located on
the air filter cover (see
Figure 7-7 ).
Replacement of the primary filter is indicated only when the
red flag locks in place at the top of the service indicator.
NOTE: The recommended service interval for replacing
the secondary element is every
3rd time the
primary element is replaced
1. Wipe any accumulated dirt, grease, or other foreign
material from the outside surface of the air cleaner
assembly to prevent contamination when opening the air
cleaner or integral pre-cleaner assemblies.
Do not allow foreign matter to enter housing, tubing
or air inlet hole to the engine.
2. Refer to the engine manufacturer’s instructions to open,
service and close the air cleaner or integral pre-cleaner
assemblies.
CAUTION
Engine Damage!
STOP ENGINE before servicing air cleaner or unfiltered
air will be drawn directly into engine.
Before servicing clean fittings, mounting hardware and
area around component(s) to be removed.
Never operate engine without air cleaner.
Replace secondary filter as quickly as possible to avoid
engine ingestion of contaminants.
Do not attempt to clean and re use old filters. Discard old
filters and install new filters. Cleaning filter elements by
impact or compressed air voids the warranty and can
deg rade o r dama ge th e filt e r media, leading t o
malfunction.
CAUTION
Engine Damage!
STOP ENGINE before servicing air cleaner, or unfiltered
air will be drawn directly into engine.
Do not attempt to clean and reuse old filter. Discard old
filter and install a new one.