MAINTENANCE
SIDE ROTARY Maintenance Section 4-13
© 2011 Alamo Group Inc.
MAINTENANCE
REPLACING HIGH PRESSURE HYDRAULIC FILTER ELEMENT
Assure system has been shut down and
depressurized. Locate High Pressure Filter
housing. Confirm that the element that is about to
be installed matches the element p/n on the filter
model tag. Example: V3.0510-06 (world line 100,
HD049 model) Locate the bottom of the High
Pressure Bowl, and use the appropriate spanner
wrench-or-ratchet and turning in a counterclockwise
rotation, (looking at the bottom of the bowl) remove
the bowl from the head, The first couple rotations
will seem tight as the o-ring passes the sealing flats.
Once the o-ring has cleared the sealing flats, the
bowl should spin freely. Taking care not to drop the
bowl, finish removing the bowl from the head.
WARNING: Bowl will be full of oil! Pour the oil from the bowl into a container, this oil should be considered
contaminated due to the flow direction through the element is outside-in. Clean the inside of the bowl if “dirt” is
present. Remove the old element from the filter head by pulling with a rotation motion. Dispose of the used
element properly. Remove the new element from the packaging. Using your finger, dab and lubricate the o-ring
in the top of the new element. Install the new element into and on the mounting boss within the head; assure
that the element is fully seated on the boss. Clean and inspect the o-ring that is affixed in the bowl, lubricate
with oil. Using a clockwise rotation, screw the bowl back into the head, assuring that the bowl has not been
cross threaded into the head. Continue to “tighten” the bowl into the head, using the spanner wrench-or-
ratchet, the rotation of the bowl will become tighter once the o-ring engages the sealing flats. Once the bowl
has bottomed out, “back-off” the bowl by 1/6 turn, this assures that the o-ring is seated properly with in the
sealing flats. Element change out and re-assembly is now complete. Start the machine and inspect the filter
area checking that there is no oil leaking from the filter assembly. This is first to be done at 50 hours of
operation, then yearly (500 hours) or when indicated by restriction indicator.