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Hersteller: Craftsman Dateigröße: 477.44 kb Dateiname: Unterrichtssprache:

3. Fill pump and suction pipe with water. Figure 9 -Run Ten Minutes Or Less If no water is produced within 10 minutes, stop pump, release all pressure, remove priming plug, refill and try again. [AWARNING] Hazardous pressure and risk of explosion and scalding. If pump is run continuously at no flow (that is, with discharge shut off or without priming), water may boil in pump and piping system. Under steam pressure, pipes may rupture, blow off of fittings or blow out of pump ports and scald anyone near. Figure 10 -Do Not Run Pump With Discharge Shut Off To prevent explosion, do the following: A. Be sure discharge (valve, pistol grip hose nozzle, etc.) is open whenever pump is running. Figure 8 -Fill Pump Before Starting B. If pump fails to produce water when attempting to prime, release all pressure, drain pump and refill with cold water 4. Replace priming plug, using Teflon tape on thread; after every two attempts. tighten plug. C. When priming, monitor pump and piping temperature. If NOTICE: If a priming tee and plug have been provided pump or piping begin to feel warm to the touch, shut off for a long horizontal rnn, be sure to fill suction pipe pump and allow .system to cool off. Release all pressure through this tee and replace plug. (Don't forget to Teflon in system and refill pump and piping with cold water. tape the plug.) 5. Start pump: water shonid be produced in 10 minutes or less, the time depending on depth to water (not more than 20') and length of horizontal run (10' of horizontal suction pipe = 1' of vertical lift due to friction losses in the pipe). 7 MAINTENANCE Pump and piping need not be disconnected to repair or replace motor or seal (see Figure 12). If motor is replaced, replace the shaft seal (Key No. 6, Page 11). Keep one on hand for future use. Be sure to prime pump before starting. NOTICE: Check motor label for lubrication instructions. The mechanical shaft seal in the pump is water lubricated and serf-adjusting. NOTICE: Drain pump when disconnecting from service or when it might freeze. PUMP DISASSEMBLY 1. Disconnect power to motor. NOTICE: Mark wires for correct assembly. Figure I I -Disconnect Power 2. Remove clamp (see Figure 12). 3. Remove pump base mounting bolts. Motor assembly and back half of pump can now be pulled away from pump front half (Figure 12). CAREFULLY remove O-Ring. Figure 12 -Slide Motor Back CLEANINGIREPLACING IMPELLER NOTICE: First, follow instructions under "Pump Disassembly". 1. Remove four screws fastening diffuser to seal plate; remove diffuser (see Figure 13). Exposed impeller can now be cleaned. 2. If impeller must be replaced, loosen two machine screws and remove motor canopy (see Figure 14). _WARNING To avoidelectrical shockhazard,use insulated-handle screwdriverto short capacitorterminals asshown. Figure 14 -Hold Shaft 3, AWARNING]Capacitor voltage may be hazardous. To discharge capacitor, hold insulated handle screwdriver BY THE HANDLE and sh...

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