R Tightening Torques for Plug-in Union and Check Valve, Swivel Plug-in Union and R Bulkhead Connection Lock Nut and Cap/Plug (both Parts Made of Steel) Figure 204/TASK 20-21-12-991-003

R Tightening Torques for Plug-in Union and Check Valve, Swivel Plug-in Union and R Bulkhead Connection Lock Nut and Cap/Plug (one of the Parts in Aluminium) Figure 205/TASK 20-21-12-991-004

R R  (a) Plug-in steel unions Steel union installed on a steel component or a steel union. Lock nut for swivel plug-in union. Lock nut for bulkhead connection. (Ref. Fig. 204/TASK 20-21-12-991-003)
R R  (b) Plug-in aluminum-alloy unions Aluminum-alloy union installed on an aluminum component. Lock nut for swivel plug-in union. Lock nut for bulkhead connection. (Ref. Fig. 205/TASK 20-21-12-991-004) 
R  (c) Plug-in unions with one of the parts (union or component) made of aluminum-alloy. (Ref. Fig. 205/TASK 20-21-12-991-004) 
R  (5) Tightening torques for HARRISSON and PERMASWAGE unions
 (a) Removable steel swaged unions, of the HARRISSON and PERMASWAGE type and removable MS-type unions (CRES and titanium tubes). (Ref. Fig. 206/TASK 20-21-12-991-005)
 (b) Removable aluminum-alloy swaged unions of the HARRISSON and PERMASWAGE type and removable MS-type unions (aluminum-alloy tubes). (Ref. Fig. 207/TASK 20-21-12-991-006) 
R R  (c) HARRISSON and PERMASWAGE type removable unions with one of the parts (union or tube) made of aluminum-alloy. (Ref. Fig. 207/TASK 20-21-12-991-006) 
R  (6) Tightening torques for plug-in check valves 
R  (a) Steel check valves installed on steel component. (Ref. Fig. 204/TASK 20-21-12-991-003) 
R R  (b) Check valves with one of the parts (check valve or component) made in aluminum-alloy. (Ref. Fig. 205/TASK 20-21-12-991-004) 
R  (7) Tightening torques for in-line check valves 
R  (a) Steel check valves installed on steel or titanium pipes. (Ref. Fig. 206/TASK 20-21-12-991-005) 
R R R (b) Check valve with one of the parts (union or pipe) made of aluminum-alloy. (Ref. Fig. 207/TASK 20-21-12-991-006) 
R R  (8) Tightening torques for lock nuts. (Ref. Fig. 204/TASK 20-21-12-991-003, 205/TASK 20-21-12-991-004)

R Tightening Torques for Hydraulic Type Unions and In-line Check Valves (both R Parts Made of Steel or Steel and Titanium) Figure 206/TASK 20-21-12-991-005

R Tightening Torques for Hydraulic Type Unions and In-line Check Valves (one of R the Parts Made of Aluminum-alloy) Figure 207/TASK 20-21-12-991-006

 Subtask 20-21-12-911-052

 B. Tightening Torques for Fuel Systems
 (1)
 Tightening torques for nuts used on component studs.
 (Ref. Fig. 208/TASK 20-21-12-991-007)

 (2)
 Tightening torques for ABS 0106 and ABS 0107 (tighten by hand with nut touches pipe end).

 Subtask 20-21-12-911-053
 C. Tightening Torques for De-icing Systems
 (1)
 Tightening torques for removable HARRISSON and PERMASWAGE swaged unions and removable MS-type union used on CRES or titanium tubes. (Ref. Fig. 206/TASK 20-21-12-991-005)

 (2)
 Hydraulic-type installation with HARRISSON unions.
 Aluminum-alloy tube and unions.
 (Ref. Fig. 207/TASK 20-21-12-991-006)

 Subtask 20-21-12-911-054
 D. Tightening Torques for Rain Protection Systems
 (1)
 Hydraulic-type installation with HARRISSON unions.
 Aluminum-alloy tube and union.
 (Ref. Fig. 207/TASK 20-21-12-991-006)

 (2)
 Hydraulic-type installation with HARRISSON unions.
 Titanium tube and union.
 (Ref. Fig. 206/TASK 20-21-12-991-005)

 Subtask 20-21-12-911-055
 E. Tightening Torques for Fire Extinguishing Systems
 (1) Tightening torques for hydraulic-type aluminum-alloy unions used on aluminum-alloy tubes. (Ref. Fig. 207/TASK 20-21-12-991-006)

 Tightening Torques for Nuts
 Figure 208/TASK 20-21-12-991-007
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 Subtask 20-21-12-911-056
 F. Tightening Torques for Pressurization Systems
 (1)
 Tightening torques for hydraulic-type aluminum-alloy unions used on aluminum-alloy tubes. (Ref. Fig. 207/TASK 20-21-12-991-006)

 (2)
 Tightening torques for hydraulic-type CRES unions used on CRES tubes. (Ref. Fig. 206/TASK 20-21-12-991-005)

 Subtask 20-21-12-911-057
 G. Tightening Torques for Air Conditioning Systems
 (1) Tightening torques for clamps used on flexible sleeves between composite or metal pipes/ducts. (Ref. Fig. 209/TASK 20-21-12-991-008)
　
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