MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-30 - Manual (Page 68)

Model 505.20 - 505.30 SilentFlo™ HPU 68
Inspecting the Heat Exchanger
Maintenance
2. Externally inspect the exchanger for:
• Dents, bulges, corrosion and leaks
• Damaged gaskets
• Worn, frayed, and leaking hoses
3. Drain all hydraulic fluid from the heat exchanger.
4. Drain all water from the exchanger.
5. Clean all filters and screens.
6. Remove the end bonnet from the water intake side of the heat exchanger.
If you have to remove a mounting bracket, use blocks of wood to support
the exchanger.
7. Internally inspect the exchanger for:
• Corrosion and erosion damage to the tubes and tube ends
• Fouling and corrosion deposits on the tubes
• Condition of the optional zinc anodes
• Damaged threads
8. If no further cleaning is needed, reassemble the heat exchanger using new
gaskets.
9. If there is evidence of fouling (sediments or light scale) or corrosion,
perform a mechanical or chemical cleaning as needed. Consult the Heat
Exchanger Care and Water Quality Guide (part number 015-164-000) for
more information on mechanical and chemical cleaning.