MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-180 - Manual (Page 98)

Model 505.60 - 505.180 SilentFlo™ HPU 98
Replacing the Optional High-Pressure Filter
Maintenance
Procedure
To change the filter element:
Filter Components
1. Turn off the HPU. Ensure that the hydraulic pressure is at zero before
proceeding. Wait until all pressure gages read zero before starting the next
step.
2. Remove the dirty filter element.
A. Use a 7/8 inch socket or wrench to unscrew the filter cap.
B. Remove the spring, spring plate, and two dirty filter elements.
C. Save the plastic union that commons the two filter elements. Discard
the dirty elements, following applicable environmental guidelines.
When working with hydraulic components, hydraulic fluid can spill and
collect on floors or work platforms.
Floors or work platforms with spilled hydraulic fluid are very slippery. Injury
or death can result from personnel falling on slippery surfaces.
Do not allow personnel to stand on or walk through hydraulic fluid. Place warning
signs around the spill area to alert personnel of the hazard. Clean and dry the spill
promptly.
3. Clean and inspect the filter housing.
A. Clean and inspect the filter cap O-ring and backup ring. Replace them
if necessary.
B. Lubricate the O-ring with clean hydraulic fluid.
Spring
Spring Plate
Filter Element
Plastic Union
Filter Housing
O-ring and
Backup Ring
Filter Cap
Electric Dirt
Alarm
WARNING