Gehl SL7600 Operator's Manual page 57

Outer Element
1. Carefully pull the outer element out of the housing. Never remove the
inner element unless it is to be replaced.
2. Clean out any dirt built up in the housing. Leave the inner element
installed during this step to prevent debris from entering the engine intake
manifold.
3. Use a trouble light inside the outer element to inspect for spots, pinholes
or ruptures. Replace the outer element if any damage is noted. The outer
element must be replaced if it is oil- or soot-laden.
Note: Gehl does not recommend cleaning the outer element.
Inner Element
Note: Replace the inner element only if it is dirty or if the outer element has been
replaced three times.
Before removing the inner element from the housing, clean out any dirt built
up in the housing. Leave the inner element installed during this step to prevent
debris from entering the engine intake manifold. Remove the inner element.
Reinstallation
1. Check the inside of the housing for any damage that may interfere with
the elements.
2. Be sure that the element sealing surfaces are clean.
3. Insert the element(s), making sure that they are seated properly.
4. Secure the cover to the housing with the three clamps.
5. Check the hose connections and make sure they are all clamped and
tightened properly.
6. Reset the indicator by pressing the reset button.
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