Hypertherm DynaMAX 550P - Repair the hydraulic center section

Preventive maintenance
4
DynaMAX 550P/560P/575P Waterjet Pump Operator Manual 811390 107
Refer to Parts lists on page 137.
Repair the hydraulic center section
The hydraulic center section includes the piston, the plungers, the hydraulic cylinder, the hydraulic
end caps, the low-pressure seals, and the proximity switches.
Preventive maintenance on these parts requires special tools. Contact a Hypertherm Technical
Service Associate for information and support regarding the installation, operation, maintenance,
and repair of this equipment.
Examine parts that are being replaced to identify wear patterns or damage that can
show other problems.
Clean each part with a towel and isopropyl alcohol. Examine all parts for deterioration,
corrosion, or damage.
Do not use soap, detergent, or solvents.
Use clean hands when changing high-pressure parts.
Repair the hydraulic center section every 12,000 hours.