R  Integrated Drive Generator (IDG)  
R  Figure 407/TASK 24-21-51-991-307 
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1  1  Aug 01/05 
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R  (3) Install the O-ring (42) in the groove on the IDG splined shaft.  
R  (4) Install the O-ring (44) in the groove on the IDG (1) pilot diameter.  
R  (5) Put the IDG (1) on a HOIST - ACCESSORY, IDG R/I FOR CFM56-5 (TMHSD10- 
R  20-00) or HOIST - ACCESSORY, IDG R/I FOR CFM56-5 (S387IDG).  
R  (6) Use the hoisting mechanism to align the IDG with the mounting pad  
R  support.  
R  Make sure that none of the weight is on the input shaft.  
R  (7) Turn the QAD tension bolt (43) to open the QAD ring (46). Align the  
R  mark on the QAD ring with the mark on the QAD engine-adapter plate.  
R  (8) Engage the lugs on the IDG in the openings in the QAD ring. To do  
R  this, align the " open-position " mark on the QAD with the opposite  
R  mark on the IDG.  
R  (9) TORQUE the QAD tension bolt to between 22 and 26 lbf.ft (2.98 and  
R  3.52 m.daN).  
R  (10) Lightly hit the outer edge of the QAD adapter with a softface hammer.  
R  (11) Do a check of the tension bolt torque. The torque value must not  
R  decrease more than 2 lbf.ft (0.27 m.daN).  
R  (12) Do again the procedure until the torque on the tension bolt is  
R  between 22 and 26 lbf.ft (2.98 and 3.52 m.daN).  
R  (13) Do a check of the distance between the ring lug and bracket of the  
R  QAD ring and bracket. If the distance is less than 0.312 in. (7.9 mm)  
R  minimum,  
R  (Ref. Fig. 408/TASK 24-21-51-991-308)  
R  remove and replace the IDG (Ref. TASK 24-21-51-000-040) and the QAD  
R  adapter (Ref. TASK 24-21-41-000-040).  
R  (14) Safety the tension bolt with Lockwire CRS 0.032in. (0.8mm) dia  
R  (Material No. CP8002) (45).  
R  (15) Remove the HOIST - ACCESSORY, IDG R/I FOR CFM56-5 (S387IDG) or HOIST- 
R  ACCESSORY, IDG R/I FOR CFM56-5 (TMHSD10-20-00).
R Integrated Drive Generator (IDG) - QAD Adaptor Allowance R Figure 408/TASK 24-21-51-991-308
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R  Subtask 24-21-51-020-076  
R  C. Removal of the IDG Terminal Block Cover  
R  (1) Remove the screws (28), the washers (29) and the terminal block cover  
R  (27).  
R  (2) Remove the terminal nut with captive washer (30).  
R  Subtask 24-21-51-020-077  
R  D. Removal of the Protections  
R  (1) If necessary, remove the shipping plugs (19) and (18) from the oil-in  
R  and oil-out bosses, and retain for subsequent use.  
R  (2) Remove the protective covers from the oil-in (13) and oil-out (12)  
R  lines.  
R  Subtask 24-21-51-420-086  
R  E. Installation of the Unions  
R  (1) Install the new packing (17) on the union (16) and the new packing  
R  (15) on the union (14).  
R  (2) Install the union (16) and TORQUE it to between 30 and 40 lbf.ft  
 
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