but it should be understood that no set rule can be
established for replacing the filter element because
t h e replacement interval is automatically estab-
lished by a service indicator installed on the air
cleaner outlet to the engine. The service indicator
insures maximum engine efficiency by providing
the operator with a fast, safe and efficient method
of determining when the filter element should be
replaced. This is accomplished by a WARNING SIG
NAL (red band) which is actuated by the pressure
drop across the air cleaner.
D i r t trapped by the filter element gradually
increases the pressure drop across the air cleaner.
(red band) inside the indicator will become visible
Adjust Draglink Ball Joints
i n the indicator window. This indicates the life
reserve of the filter element. When restriction of
Inspect all mounting bolts for evidence of
the air flow through the filter reaches the upper
l o o s e n e s s , stripped threads, cracked or broken
limit for efficient filter element performance, the
heads or any other signs of damage.
WARNING SIGNAL (red band) will lock and remain
in a position visible to the operator regardless of
Note: Where spring bolts are used on engine
whether or not the engine is running. This is an
mounts, bolts should be tightened to compress
indication that the filter must be serviced.
spring, and then backed-off two full turns.
Note: Extended operation of machine without
Remove and replace damaged or missing
mounting bolts and tighten all loose mounting bolts
replacing filter element when indicated by the serv-
as necessary. Refer to Bolt Torque Chart.
i c e indicator will create excessive restriction re-
sulting in high fuel consumption, excessive smoke,
Steam Clean Machine: Periodically or when-
ever working machine in muddy or swampy areas
Figures 39 thru 41 illustrate the removal and
or when machine begins to cake up with excessive
cleaning procedure of the air cleaner element.
dirt, the entire machine should be steam cleaned.
If allowed to accumulate, dirt will find its way into
L o o s e n clamp assembly, (Item 1 Figure 40),
the various systems when plugs, covers or caps are
and remove dust cup, (Item 2 Figure 40). Unscrew
r e m o v e d or during unit replacement eventually
the wing nut, (Item 3 Figure 40). and remove ele-
cause serious damage and down time.
m e n t , (Item 4 Figure 40). Pat sides of element
Dirt packed on or around the axle, transmis-
sion, torque converter and engine breathers will
cause oil losses.
Steam is the most effective and recommended
method of cleaning a dirty machine. If unavailable
Use a spray of mineral spirits or a similar solvent
non-harmful to exposed hoses, lines and electrical
Note: Prior to steam cleaning, cover all alter-
nator and cranking motor openings to protect them
from the force of the steam jet.
s e r v i c i n g procedures and intervals for replacing
the air cleaner filter element are described below,
Clean and Inspect Filter Element