(12)
 G00000 Wheel - Buffing, Stitched Muslin, 4 to 10 Inch Diameter

 (13)
 G00000 Wheel - Buffing, Unstitched Muslin, 4 to 10 Inch Diameter

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 (14)
 G00000 Compound - Buffing, Learock No. S-30

 (15)
 G00000 Compound - Buffing, Learock No. 888

 (16)
 G00000 Compound - Buffing, 0000 Rouge

 (17)
 G00000 Compound - Buffing, Dupont 7

 (18)
 G00000 Compound - Buffing, Polysand

 (19)
 G00000 Wax - Simonize

 C. Access
 (1)  Location Zone
 538 Wingtip, Left
 638 Wingtip, Right

 D. Repair Cracks in the Lens
 S 018-001
 (1)  
Remove the forward fairing of the wingtip (AMM 57-23-01/401).

 S 018-002

 (2)  
Remove the lens.

 S 348-003

 (3)  
Drill a 1/4 inch or 3/8 inch diameter hole at the end of the crack to stop drill the crack.

 NOTE: Be careful when you drill into the acrylic lens because you
____ can damage it easily. It is recommended that you drill holes in MIL-P-8184 or MIL-P-5425 acrylic plastic sheet before you drill the lens. The material must be 0.10 inch thick.
 S 348-004
 (4)  
Rub the abrasive paper around the hole to remove all cracks or chips in the acrylic.

 S 348-005

 (5)  
Cut and remove a 0.10 inch thick plug from the MIL-P-8184 or MIL-P-5425 acrylic plastic sheet.

 NOTE: The plug dimension must be accurate before you install it
____
 into the drilled hole of the acrylic.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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MAINTENANCE MANUAL

 S 348-006
 (6)  Bond the plug in the fairing with one of the recommended cements as follows:
 (a)  
Make the mating surfaces rough with 240 grit wet or dry paper.

 (b)  
Clean the mating surfaces with aliphatic naphtha or soap and water followed by aliphatic naphtha.

 (c)  
Let the mating surfaces dry.

 (d)  
Apply tape to the area around the plastic.

 NOTE: The tape must not be more than 1/32 inch from the inch
____ from the bonded area. The location of the tape must extend a minimum of 1 inch. The tape must be parallel to the joint.
 (e)  Prepare the adhesive
 1)  Prepare the cement PS-30 (Component A - base, Component B -catalyst). a) Add one part by weight of Component B to 19 parts by
 weight of Component A and mix fully.
 NOTE: The pot life of this bond is 20 minutes at
____
 75° F.

 WARNING: WHEN YOU USE PS-18, YOU MUST OBEY THE PRECAUTIONS
_______
 THAT FOLLOW:

 -
DO NOT MIX COMPONENT B DIRECTLY WITH COMPONENT C BECAUSE A DANGEROUS CHEMICAL EFFECT WILL OCCUR.

 -
DO NOT LET COMPONENT C TOUCH YOUR SKIN.

 -IF COMPONENT C TOUCHES YOUR SKIN, CLEAN THOSE SKIN AREAS IMMEDIATELY WITH SOAP AND WATER.
 2)  Prepare the cement PS-18 (Component A - base, Component B -catalyst, Component C - promoter). a) Add one capsule (2.4 grams) of component B to 4 fluid
 ounces (118 cc) of component A and mix together.
 NOTE: You can keep this mixture for no more than 24
____ hours at 35-40°F.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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