3.6.7 ImpellerMaintenance.(Continued)Figure 3-8. Loosening Impeller.Ensure that steel bar is held rigid while striking with hammer. Impeller ismade of brass and damage to vanes may occur.Failure to obey this cautionmay cause damage to impeller.f .While holding steel bar (5) at flexible coupling assembly (3) securely inposition, and steel bar (8) in impeller (9) rigid, firmly strike steel bar (8)in counterclockwise direction while facing impeller (9) until impeller (9)unscrews.g .Remove steel bars (5 and 8). impeller (Figure 3-9, 1), shims (2), if Present,seal washer (3), spring (4) seal assemblyimpeller shaft (7).Discard seal assembly3.6.7.2 Repair.(5), and stationary seat (6) from( 5 ).Do not use cleaning solvent without proper ventilation and clothing.Do notsmoke or use near open flame or excessive heat.Dry cleaning solvent ispotentially dangerous to personnel and property.Clean parts in a well-ventilated area.Avoid inhalation of solvent fumes.Wear goggles and rubbergloves to protect eyes and skin.Wash exposed skin thoroughly.Failure toobey this warning may result in personal injury or death.a .Using cloth soaked in cleaning solvent, clean impeller shaft (7), bore of sealretaining plate (8), and sleeve spacer (Figure 3-8, 7).Allow all componentsto thoroughly air dry.3-24TM 10-4320-344-24
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