TASK 28-13-05-404-004
 3.  Install the Housing of the Vent Flame Arrestor (Fig. 401)______________________________________________
 A. Consumable Materials
 (1)  
A00248 Sealant - BMS 5-26 Type II Class A-1/2

 (2)  
A00250 Sealant - BMS 5-26 Type II Class B-1/2

 B.
References

 (1)  
AMM 20-10-21/601, Electrical Bonding

 (2)  
AMM 28-11-03/401, Surge Tank Access Door

 (3)  
AMM 51-31-01/201, Seals and Sealing

 C.
Procedure

 (1)  S 434-005Put a new gaskoseal on the vent flame arrestor.
 (2)  S 434-004Install the vent flame arrestor in the housing of the vent flame arrestor.
 (3)  S 434-006Align the tube with the vent flame arrestor.
 (4)  S 434-021Install the bolts and washers (12 locations) to attach the tube and the vent flame arrestor to the housing of the vent flame arrestor.
 (5)  S 394-007Apply the sealant (BMS 5-26 Type II Class A-1/2 and BMS 5-26 Type II Class B-1/2) (AMM 51-31-01/201) around the bolts.

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A

757
MAINTENANCE MANUAL

 S 424-008
 (6)  
Align the housing of the vent flame arrestor with the surge tank access door.

 S 424-006

 (7)  
Install the housing bolts and washers (18 locations) to attach the housing of the vent flame arrestor to the surge tank access door.

 S 224-009

 (8)  
Make sure the bonding resistance between the housing of the vent flame arrestor and the surge tank access door is not more than 0.0025 ohms (AMM 20-10-21/601).

 S 394-010

 (9)  
Apply the sealant (BMS 5-26 Type II Class A-1/2 and BMS 5-26 Type II Class B-1/2) (AMM 51-31-01/201) around the housing bolts.

 S 414-011

 (10)
 Install the surge tank access door, 543BB or 643BB
 (AMM 28-11-03/401).

 TASK 28-13-05-004-012
 4. Remove the Vent Flame Arrestor (Fig. 401)
______________________________
 A. References
 (1)  
AMM 28-11-03/401, Surge Tank Access Door

 B.
Access

 (1)  
Location Zones 543 Surge Tank - Rib No. 21 to No. 23 (Left) 643 Surge Tank - Rib No. 21 to No. 23 (Right)

 (2)  
Access Panels
 543BB Surge Tank Door (Left)
 643BB Surge Tank Door (Right)

　
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