TM 10-4610-232-34j. Remove connecting rod bolts (9) from connecting rod (7).k. Remove oil plug (24).l. Remove bearing outer races (25 and 26) from end covers (12 and 13).m. Remove plug (27), elbow (28) and pipe nipple (29).WARNINGThe cleaning solvent used to clean parts can be dangerous to personnel and property.Wear rubber gloves when using solvent. Wash hands with soap and water and use alanolin-based skin cream to prevent skin drying. Do not use solvent near open flamesor other sources of heat. Do not work with solvent in a closed room. Be sure to openwindows and doors. Wear safety glasses when working with compressed air, toavoid injury to eyes.a. Wash all parts in clean solvent and blow dry with compressed air (30 psi max.).b. Remove all metal particles from magnetic drain plug (27).c. Inspect the crankshaft bearings (17 and 18) for cleanliness, visible wear or damage, and rough spots whenrotated. Replace bearings that are worn or damaged.NOTEReplace both bearings if one is found to be faulty. Replace bearing outer races whenreplacing bearings.d. Inspect the crankshaft, sleeve bearings, connecting rods, wrist pins, cross heads, and cylinder bores for visibledamage, scoring or pitting. Replace parts that are worn or damaged.e. Inspect the bearing cups (25 and 26) for the crankshaft bearings. Replace if damaged, scoring or pitting is evident.CAUTIONLubricate all parts with clean oil at assembly to prevent damage to the pump.a. Install pipe nipple (29), elbow (28) and plug (27).NOTECool the bearing cups before replacing.b. Install bearing cups (25 and 26) in bearing housings (12 and 13).c. Install oil plug (24).NOTEThe seal lips must face the inside of the pump case when assembled.d. Lubricate seal (20) with oil and press oil seal (20) into bearing housing (13).N O T EPress only on the inside face of the bearings.e. Use a press to install bearings (17 and 18) on crankshaft (16).NOTEMake sure that oil slot in cross heads is in alignment with oil pocket in connectingrods.3-17
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