Element Replacement Procedure - Wittke STARLIGHT Maintenance Manual

104 Hydraulic System

Element Replacement Procedure

Element replacement will ensure that contaminants trapped due to ingestion and component wear
are removed from the system.
To replace the return line filter element, proceed this way:
1.
Complete the lockout/tagout procedure (refer to "Locking Out and Tagging Out the Vehicle"
on page 21).
N : Keep tools, working area and equipment clean. A pan will be required to collect a small amount
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of oil lost as the element is removed.
N : The filter housing is fitted with a check valve. Therefore, it is not necessary to drain the
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hydraulic tank before the replacement procedure.
2. Loosen the 4 cover plate bolts using a ½-inch wrench, rotate through 45° and lift off.
Figure 7-22 Loosening plate bolts
3.
Use an oil tray to collect lost oil.
Figure 7-23 Oil tray
4.
Carefully remove the element, rotating it as you do so to release suction.