3.DISASSEMBLY Take off pump case by removing 4 hexagon long bolts counter-clockwise direction by the wrench. PUMP CASE Remove the pump case with the volute casing. Remove it when replace the volute casing. VOLUTE CASING 4...
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Remove the impeller by hitting counter-clockwise direction with soft hammer. Please strike not to damage the impel- ler. After removal of the impeller, remove adjusting washer. Please check quantity of adjusting washer inside the impeller. (Please set same quantity of adjusting washer when you replace new impel- ler.) ADJUSTING WASHER...
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Remove the flange bracket from the main bearing cover of engine. FLANGE BRACKET Remove the mechanical seal. The mechanical seal (carbon side) is removed together with the flange bracket. MECHANICAL SEAL Remove the mechanical seal (ceramic side) from the flange bracket. It hooks with a minus driver or pushes out from the back side....
4.REASSEMBLY Set new mechanical seal correctly (ceramic side) in the flange bracket. Blow up air to ceramic face to avoid any dust. Set flange bracket through engine shaft, then , tighten 4 hexagon socket bolt clockwise direction with minimum torque of 20N ・m. Set mechanical seal (carbon side) ceramic face and carbon face should be set correctly....
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Set the spring. SPRING Set impeller adjusting washer. (same quantity of adjusting washer should be set.) ADJUSTING WASHER Set the impeller to the engine shaft, tighten clockwise direction by hand. When you found defective parts , Please exchange for new parts. Fasten new impeller by hitting clock- wise direction with soft hammer....
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Put volute casing in position to pump casing with O-ring correctly placed. VOLUTE CASING Put pump casing to flange bracket with correct position. Fasten pump casing to flange bracket with 4 hexagon long bolts.Starting from right top bolt should be tightened with minimum torque of 20N ・m....
6.CHECK LIST BEFORE ASK SERVICE STATION Symptom Possible cause Measure Change fuel. If it is still in bad Engine trouble due to use of old fuel. condition, ask service station. Rusting inside of engine Ask service station Cannot pull recoil or Burned engine Ask service station is heavy...
7.CHECK LIST BEFORE START Check List ~ Before start ~ □ Set engine pump on fiat and stable place □ Put necessary QTY of gasoline (4 stroke) / Mixed gas & oil (2 stroke) □ Put necessary QTY of gasoline (4 stroke) □ ...