(f)
Abrade surface with new 600-grit abrasive paper or cloth until all shine is removed and surface takes on a uniform satin sheen.
NOTE: Because abrasive paper or cloth loads up rapidly, change paper or cloth frequently.
(g)
Remove sanding dust by wiping with clean dry gauze or cheesecloth. Do not use solvent.
NOTE: If surface is painted, remove paint from an area approximately 1/4 inch wider on all sides of discharger base outline.
507
23-61-0 Page 404 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 01/03
CAUTION: INSTALL STATIC DISCHARGER BASES WITHIN 5 MINUTES AFTER SANDING TO PREVENT ALUMINUM OXIDATION.
(4) Fiberglass Laminates
(a) Remove sealant by sanding with 180-grit or finer sandpaper.
CAUTION: TAKE CARE NOT TO SAND THROUGH RESIN SURFACE INTO GLASS FABRIC. DO NOT USE CHEMICAL STRIPPERS.
NOTE: A surface 90% clear of sealant is satisfactory.
(b)
Clean and degrease bonding area with applicable cleaning solvent, Series 88 (Ref 20-30-88). Apply solvent from squeeze bottle or safety can with clean oil-free gauze or cheese cloth.
WARNING: DO NOT GET SOLVENT IN YOUR MOUTH OR EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE HAZARDOUS MATERIALS. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES
(c)
Wipe off solvent before it evaporates using more clean gauze or cheesecloth. Ascertain that area is not contaminated.
NOTE: Because of difficulty in keeping surfaces uncontaminated, complete cleaning no sooner than 1 hour before bonding.
507
May 01/03 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 23-61-0 Page 405
B. Install Static Discharger Bases
(1) Prepare sealant as follows:
(a)
Mix all of part B, hardener (1 part), with all of part A resin, (10 parts), in a clean glass or metal container. Do not use waxed or porous paper container.
(b)
Mix thoroughly with wood tongue depressor until mixture is smooth and uniform in color. Take care not to entrap air in the mixture.
(c)
Allow sealant to stand for 10 minutes prior to application.
CAUTION: SEALANTS CONTAIN EPOXY RESIN. AVOID BREATHING VAPORS, CONTACT WITH EYES, SKIN OR CLOTHING. WASH HANDS FREQUENTLY.
NOTE: Pot life for 1-ounce kit after mixing is approximately 1 hour at 70.F. One 1-ounce kit is suitable for about six dischargers.
(2)
Remove metal discharger base from plastic bag without touching mounting surface with fingers, and abrade surface per steps A.(1)(c) thru A.(1)(f).
NOTE: Do not abrade plated bases, but clean per steps A.(1)(c) and A.(1)(d). A plated base has a green dot on it for identification. Wear gloves when handling bases.
(3)
Attach the base to the airplane surface:
(a) Make sure you install the base in the same direction as the airstream.
(4)
Install the fasteners:
(a)
Attach the base to the aluminum structure in 5 minutes or less to prevent aluminum oxidation. 1) Use rivets to attach the base to the airplane surface
(SRM 51-40-02/201). 2) Apply sealant, BMS5-95 to the rivet (AMM 51-31-00/201).
(b)
Attach the base to the composite structure. 1) Apply sealant, BMS 5-95 to the screws (AMM 51-31-00/201). 2) Use the four 5/32 inch screws to attach the base to the structure.
(5)
Apply a bead of sealant, BMS 5-95 to the edge of the discharger base.
(a)
Make a fillet seal around the discharger base
(AMM 51-31-00/201).
(b)
Make sure no cracks are seen, this includes airplane surfaces that do not correctly align with the base.
(c)
Clean away unwanted sealant with a cloth that is moist with methyl ethyl ketone, BMS 11-7, FCC-55, MEK:sec-butyl alcohol (42:58), or MPK.
CAUTION: BE SURE NOT TO WASH AWAY FILLET.
WARNING: DO NOT GET SOLVENT IN YOUR MOUTH OR EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE HAZARDOUS MATERIALS. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
507
23-61-0 Page 406 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 01/99
(6) Cure trailing edge and tip type bases.
(a)
If base is not riveted, tape base firmly to airplane surface with masking tape, or if heat clamp is to be used, place polyvinyl alcohol film over base. Check alignment before cure.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：737 AMM 飞机维护手册 通讯描述和操作(34)
