Air Filter - Replacement Of Main Filter Element And Of Safety Element - Case WX145 Operator's Manual

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SUPPLIES AND SERVICE CHART
Check that the spring seat, the belt tensioner and
the cranckase are one above the other. If they are
remarkably spaced or tilted one against the other,
the belt tensioner has to be replaced.
Check for signs that the tensioner bracket touches
the spring seat. If they touch each other, this means
that the bracket bushing is faulty and that the belt
tensioner has to be changed.
A worn belt tensioner, showing some backlash, or a
belt slipping from the pulley, indicate the possibility
of a wrong pulley alignment.
The maximum allowable pulley alignment is of 3°.
The measurement can be performed by means of a
blade scale and a goniometer.
AIR FILTER - REPLACEMENT OF MAIN
FILTER ELEMENT AND OF SAFETY
ELEMENT
Place the machine in a safe condition.
Place the working attachment on the ground.
Engage the parking brake.
Shut off the engine and wait that it cools down.
Open the cover on the left side of the machine.
Push the clip (1) forward, turn the filter cover to the
left (2) and remove it.
Remove the main filter element (3) carefully from
the case (5).
Remove from the case (5) also the safety element
(4).
NOTE: beyond maintenance the safety element (4)
according to time schedule, this has to be replaced
after the main element (3) has been cleaned three
times.
Clean the inside of the filter case (5) and the cover
73
(2) accurately, by means of a vacuum cleaner.
Install the new safety element (4) and then the main
new element (3).
Reassemble the cover (2) and lock it with the fas-
tener (1).
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