MTS Hydraulic Service Manifold Model 293-12B - Manual (Page 48)

2. Place a drain pan under the main filter drain port and remove the cap from the port.
3. Remove the vent plug from the filter housing. Allow the fluid to drain for five minutes.
4. With an open-end wrench, rotate the filter housing counterclockwise to remove it.
5. Check the filter housing for contamination (particles adhering to the inside of the bowl). If contamination
is present, check the system for wear or loss of seal integrity. Wipe the housing with a lint-free cloth.
6.
Caution :
Do not remove the old filter element before you remove all contaminated fluid from around
the base of the element.
Failure to remove the contaminated fluid can cause erratic system operation due to
subsequent contamination of the system servovalve(s).
Ensure that the area around the base of the filter element is free of contaminated fluid
before you remove the element.
Carefully clean all contaminated fluid from around the base of the filter element.
7.
Caution :
Do not re-use a dirty filter element.
A dirty filter element can cause damage to the system equipment.
Ensure that a new element is installed.
Remove the filter element from the head and discard it.
8. Center the new filter element in the head.
9. Clean and inspect the O-ring seal. Replace if necessary. Lubricate the seal with a small amount of
clean hydraulic fluid.
10. Refit the filter bowl. Ensure that the O-ring seal is seated in its channel. Screw the filter bowl into place
until it is seated, then tighten it to 34 to 41 N·m (25–30 lb·ft).
11. Discard the drain pan fluid according to company policy. Install the cap on the drain port fitting. Tighten
it to 47.5 N·m (35 lb·ft).
Model 293.1X HSM Pilot Filter Replacement
Replace the filter element if the indicator shows dirty. If fluid is cold when you start the pump, the pilot
pressure indicator might show dirty. Let the fluid warm up, watch the indicator, and replace the filter element
if it shows dirty again.
Fluid filtration is provided by a 3 µ (absolute) pilot pressure filter. The replacement filter kit is MTS part
number 052-957-701. The kit includes a 3m (absolute) pilot pressure filter, an o-ring filter bowl seal, and
a back-up retainer ring. The MTS part number for the filter element only is 010-088-309.
48 | Series 293 Hydraulic Service Manifold Product Information
Maintenance