Chapter 6 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
6-9
Changing Oil Filters (Swithover Type) (S16U)
Changing Oil Filters with Engine Stop
1 Clean the surrounding area of the oil filters.
2 Open the air vent valves on the filter covers to
release the internal pressure of the oil filters.
3 Open the drain valve located located below the
filter body to discharge engine oil from the oil fil-
ters.
4 Remove the bolts and nuts, and dismount the fil-
ter covers.
5 Remove the filter bodies, wing nuts and wash-
ers, and dismount the oil filter elements.
Note: Open the removed elements to see if they
have collected metal particles. If metal parti-
cles are found on the elements, consult your
Mitsubishi dealer.
6 By using a clean cloth, wipe off oil from the oil filter mounting surfaces and O-ring mounting surfaces of the
filter bodies.
7 Install the packings provided in a new element kit securely into the grooves on the filter bodies.
8 Install the elements, packings and washers, and secure them in place by tightening the wing nuts.
9 Install the filter covers to the filter bodies with the bolts and nuts.
10 Close the air vent valves and drain plug.
Changing Oil Filters While Engine in Operation
To replace the oil filters while the engine is in operation, be sure to run the engine under no load low idling and
rated speed. If the oil filter is replaced during the engine is in high-speed operation, oil can leak from switcho-
vwe lever.
1 Clean the surrounding area of the oil filters.
2 Turn the oil filter tightening handle for an angle of
90 to 180 degrees in the counterclockwise direc-
tion.Remove the cover from the oil filter switcho-
ver cock.
3 Move the switchover handle to the "Left-STOP"
or "Right-STOP" position.
Note: When the switchover handle is operated, the
stopper located on the back side of the handle
enters the stopper hole on the flange to secure
the handle in place.
4 Change the element and packing in the oil filter
on the side selected by the switchover handle.
5 Change the element and packing in the other oil
filter by following the same procedure.
6 Return the switchover handle to the "Both Right and Left Filters in Use" position (center position), and turn
the oil filter tightening handle to the right to tighten.
fig.6-14 Changing oil filter elements
Element
Packing
O-ring
Drain valve
Body
Spindle
Bolt
Cover
Wing nut
Nut
Washer
fig.6-15 Oil filter switchover handle
Switchover handle
Tightening handle
Left side oil filter
Right side oil filter
"Right side
CLOSE"
position
"Left side
CLOSE"
position
Stopper hole
Drain valve
Drain valve
"Both Right and Left Filters in Use"
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