VIII. SERVICE AND MAINTENANCE

High Pressure In-line Filter

STACK VALVES - The valves on the boom control stack valve are protected by a 90 Micron in-line sintered bronze filter (fig. 8.18). When the filter element is removed for cleaning, caution should be taken so the gasket is in the proper place when re-installing (fig . 8.19). Also, re-install filter paying attention to direction of flow so the end marked “OUT” is oriented correctly.

Solution Line Strainer

To help maintain consistent application rates, check the solution line strainer (fig. 8.20) daily for blockage. To remove the strainer, close the tank shutoff valves. Clean the strainer screen as required. Be sure to wear the appropriate clothing while removing and cleaning the line strainer screen. Confirm the gasket is in place before re-ins talling the screen. Line strainers for the high pressure pumps are located under each solution tank. Remove and clean them in the same manner.

Air Conditioning System Dryer

The A/C system receiver/dryer (fig. 8.21) should be replaced if the A/C loop is ever opened such as replacing a compressor or condenser line, etc.