Maintenance
MTS Landmark™ Tabletop Load Units - Product Information
117
Item Description
1
Socket Head Screws (4)
2
Washers (4)
3
Filter Cover Plate
4
Filter Plug
5
Filter Plug O-Rings
6
Filter O-Ring
7
Filter
8
Filter Housing
9
Filter Cover
10
Model 252.2x/.4x (revision G) Filter Location
11
Model 252.3x Filter Assembly
Servovalve Filter Locations
1. Ensure that system hydraulic pressure has been reduced to zero before proceeding. To do
this, turn off the hydraulic power unit and exercise the actuator until it stops moving. Turn off
electrical power to the controller.
Note:
Steps a-e below apply only to Models 252.2x/4x revision G.
A. Remove the four socket head screws and washers that secure the filter cover plug.
B. Thread one of the socket head screws, removed in Step A, into the filter cover plug
and pull it out of the filter housing.
C. Remove the filter disk.
D. Lightly lubricate the filter with clean hydraulic fluid and insert the new filter into the
housing.
E. Secure the filter cover plate to the housing using the four socket head screws and
washers removed in Step A. Using the appropriate sequence, tighten the socket
head screws to 4.5 N·m (40 lb·in).
Note:
Steps f-m below apply only to Model 252.3x.
F. Remove the four socket head screws and washers that secure the filter cover plate to
the filter housing.
G. Remove the filter plug by threading one of the socket head screws, removed in Step
F, into the filter plug and pulling it out of the filter housing. Remove the filter cover
plate.
H. Remove the filter plug O-rings from the filter plug.
