Quantcast Assembly (cont) - TM-9-2815-202-34_374

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TM 9-2815-202-34 4-43.  WATER  PUMP  REPAIR  (Cont) (12) (13) Tighten lock nut (6) to install pump impeller (10) on shaft (8). Torque lock nut (6) to 35-40 Ib-ft ( 4 7 - 5 4     N - m ) .  Before  installing  pump  assembly,  check  the  slip  torque  as  follows: a. Scribe a line across gear (5) and shaft (8). b. Scribe a line across pump impeller (10), lock c.   Attach adaptor (19) onto a torque wrench. CAUTION nut (6), and shaft (8). (14) (15) (16) When securing gear in vise,  hold gear  securely.  Use  care  to  prevent  damaging  gear teeth. d. Hold gear (5) securely. Insert adapter (19) into pump impeller (10), and apply 80 (108 N-m) of torque. Ib-ft e.  If  slippage  occurs,  examine  scribed  marks  to  determine  if  gear  (5)  or  pump  impeller  (1  O) has turned on shaft (8). f. If slippage occurred, replace shaft (8) and part that turned. g. After replacing necessary parts, retest pump assembly. Insert feeler gage into water outlet opening of pump  body  (4).  Measure  clearance  between pump impeller (1 O) and pump body (4). Clearance must be 0.015 inch minimum. Install new gasket (3) and pump cover (2) to pump body (4).  Secure with five bolts (1). Torque bolts to 13-17 Ib-ft (18-23 N-m). NOTE Step (16) is for models 7395 and 7398. If removed, install two  pipe plugs (16) and  pipe plug (17) into pump body (4). Remove  pump from vise. END  OF  TASK FOLLOW-ON    MAINTENANCE Para  Description 5-7  Install  water  pump  (7083-7391,  7083-7396,  and 4-9  Install  water  pump  (7083-7395  and  7083-7398) 7083-7399) 4 - 2 66 Change   1


 


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