
SEBU7494-06 127
Maintenance Section
Lower Machine Frame - Clean
g00953053
Illustration 152
257 and 287 machines
Apply lubricant to the grease fittings (1) for the lift
arm linkage.
Apply lubricant to the grease fittings (2) for the lift
cylinder bearings.
Repeat the process for the opposite side of the
machine.
i01877982
Lower Machine Frame - Clean
SMCS Code: 7050-070
1. Tilt the cab upward. Refer to Operation and
Maintenance Manual, “Cab Tilting”.
g00954934
Illustration 153
2. Remove the access panel in the frame that is
located underneath the machine.
3. Remove any debr
is or dirt from the inside of the
frame.
4. Reinstall the
access panel and tilt the cab
downward.
i02106227
Oil Filter - Insp ect
SMCS Code: 130
8-507; 3067-507; 5068-507
Inspect a Used
Filter for Debris
g00100013
Illustration 154
The element is shown w ith debris.
Useafilter
cutter to cut the filter element open.
Spread apart the pleats and inspect the element for
metal and for other debris. An excessive amount of
debris in t
he filter element can indicate a possible
failure.
If metals a
re found in the filter element, a magnet can
be used to differentiate between ferrous metals and
nonferrous metals.
Ferrous metals can indicate wear on steel parts and
on cast iron parts.
Nonferrous metals can indicate wear on the
aluminum parts of the engine such as main bearings,
rod beari
ngs, or turbocharger bearings.
Small amounts of debris may be found in the filter
element.
This could be caused by friction and by
normal wear. Consult your Caterpillar dealer in order
to arrange for further analysis if an excessive amount
of debri
sisfound.
Using an oil filter element that is not recommended
by Cater
pillar can result in severe engine damage
to engine bearings, to the crankshaft, and to other
parts. This can result in larger particles in unfiltered
oil. The
particles could enter the lubricating system
and the particles could cause damage.