MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-11 - Manual (Page 60)

Model 505.07/.11 SilentFlo™ HPU 60
Replacing the Return Line Filter
Maintenance
2. Open the top of the HPU with an 8-mm (5/16-inch) allen wrench.
Return Line Filter Component Identification
3. Check the output pressure gage. Ensure that the pressure is at zero before
proceeding.
4. Unscrew the filter cover. The filter element, bypass assembly, and filter
bowl can be removed as one assembly. Be careful not to spill any hydraulic
fluid.
5. Remove the disposable element from the bowl. Discard any fluid contained
in the filter bowl.
6. Wipe out any remaining sludge in the filter housing with a lint-free cloth.
7. Inspect the O-rings in the manifold for any sign of deterioration. If
necessary, replace the defective O-ring(s).
Output
Pressure
Gage
Filter
Assembly