Axi STS 7030, Руководство пользователя

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21
SERVICING Y-STRAINER
Excessive debris in the Nexus Y strainer will result in pump shutdown and activate the alarm “HIGH
VACUUM ALARM”. This indicates that it is time to clean the strainer basket.
Servicing Y-Strainer:
1. Turn key switch to the “OFF” position – make sure pump will not turn on
2. Close the inlet and outlet ball valve
3. Place a fuel waste container below the drain valve on the bottom of the Y-Strainer
4. Open the drain valve
5. Allow all fluid to drain from the Y-Strainer
6. Using an adjustable wrench, unscrew the brass cap on the bottom of the Y-Strainer
7. Remove the strainer basket, clean and replace
8. Replace the brass cap, tighten securely
9. Close the drain valve
10. Open the inlet and outlet valves
11. Push the “ALARM RESET” button on the control panel to acknowledge the alarm and reset it
12. Return the pump selector key switch to “AUTO” or “RUN”
SERVICING PRIMARY FILTER
The gauge will indicate maximum pressure during system operation.
Clogging filter elements restrict the flow of fuel and the system’s pressure gauge will indicate a pressure drop.
The gauge is mounted on top of the primary filter. At a differential pressure drop of 25 psi, the pump will
automatically shut off and activate the “HIGH PRESSURE ALARM” indicator light. The signal indicates that it is
time to change the filter element. There are several types of filters available; the STS 7030 30GPM is shipped
with a factory installed 10 micron Micro Filter element in the primary filter.
Servicing primary filter:
1. Turn key switch to the “OFF” position – make sure pump will not turn on
2. Close the inlet and outlet ball valve
3. Place a fuel waste container below the drain valve on the bottom of the filter
4. Open the drain valve
5. Allow all fluid to drain from the filter
6. Open the vent valve on the cover of the housing ; allow the unit to thoroughly vent before
7. opening the cover
8. Loosen the 4 knobs attaching the head to the housing flange
9. Remove the head gasket and discard
10. Remove and discard the expended cartridge in a FIRE-SAFE place. In accordance with local and
national regulations.
11. Flush the interior of the housing with clean, processed, filtered product or a suitable solvent. A
nonmetallic bristle brush will help to remove caked-on debris. Rinse the housing and unit cover
with a clean solvent and dry with soft, lint-free wiping cloths.
12. Lightly lubricate new head gasket with Vaseline or Petroleum Jelly and position it on the head. If
Vaseline is not available lubricate the gasket with the fuel or oil it will be used in.