Tiger Products Co., Ltd JD 72-7520 - Manual (Page 73)

Maintenance Section 4-11
MAINTENANCE
DETAILED MAINTENANCE
REPLACEING HIGH PRESSURE HYDRAULIC FILTER ELEMENT:
Assure system has been shut down and de-pressurized. 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 that matches the hex pattern. Using the 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 seam
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 with in 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 “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 been fully inserted into the head, and the o-ring has
reached the sealing flats, the bowl can no longer be “tightened” and bottoms out.
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.
BOWL
HEAD