Lull 944E-42 Operation Manual - Manual (Page 109)

General Maintenance
107 Model 944E Origin 3/04
The front dash panel illuminates an indicator light that will alert the operator when it
senses restricted air flow to the engine. This indicates the air filter(s) needs
servicing. NEVER operate the vehicle without the air cleaner assembly and both
filters in place.
A. Element: Change
(As Restriction Indicator Indicates or
Every 250 Hour Intervals)
Outer Primary Element
All air cleaner manufacturers agree that attempting to clean or wash an element
increases the chance for element damage. It is highly recommended that you
consider the value of cleaning an element against the risks which could lead to
engine damage. Adopt the policy that all elements should be replaced with new and
not cleaned.
Inner Element
An inner element should never be washed or reused. Always install a new element.
Replace inner elements after every third primary element change. DO NOT remove
an inner element until you have thoroughly cleaned the inside of the air cleaner
canister. This will prevent dirt, which could damage the engine, from entering the
induction manifold.
To change elements:
1. Pull the air cleaner cover lock (1) OUT, turn the air cleaner cover (2) coun-
terclockwise and remove the cover from the air cleaner canister (3).
2. Air Cleaner
CAUTION:
NEVER run the engine with only the inner element
installed. Severe engine damage will result from dust entering the engine.
250
OS0790 OH2710
OU0210
2
1
3