PLFA filter（Inlet of upper control
valve
）
1 Clean the area around the oil filter, and
then remove the cap components.
2 Pull out the filter element from the filter
assembly chamber.
3 Install the new filter element to the filter
assembly chamber.
4 Refit the cap components and tighten it.
Clean up any oil that may have spilled
during the replacement procedure.
D-2 Turret rotation slewing ring
gear - check tightening of bolts
Check the turret fixing nuts on the slewing ring
gear. Check for rusted, slackened or missing
nuts.
Contact your dealer in case of serious
problems.
To check the tightening torque slacken lock
nuts1. Tighten nuts 2 by applying a 290 Nm
torque. Again tighten lock nut 1. The help of a
second operator may be necessary to hold the
screw steady.
To check the fixing screws of the slewing ring
gear on the chassis, align hole 3 with the
screw underneath by rotating the turret.
Tighten the screws by applying a 290 Nm
torque. Repeat the operation for each screw,
rotating the turret from time to time.
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