S 348-117
(5)
Repair Procedure I
(a)
Mix (by weight) 109 parts of EC 3532A/B resin part A to 100 parts of part B.
(b)
Bond a piece of foam with the adhesive mixture to the area where the damaged core was removed.
NOTE: The foam thickness must be the same thickness as the
____ honeycomb core that was removed from the damaged area.
(c)
Let the repair cure for 2 hours at 75°F, or for 45 minutes at 160°F.
(d)
Repair the skin with the steps given before for panels that do not have core damage.
S 348-118
(6) Repair Procedure II
(a)
Use the manufacturer's instructions to mix the Epocast 1618A/B.
(b)
Fill the damaged area with the adhesive mixture.
(c)
Let the repair cure for 3 hours at 75°F.
(d)
Repair the skin with the steps given before for panels that do not have core damage.
K. Repair Potted Inserts
S 348-119
(1)
Remove the damaged skin and approximately 1/2-inch more on all sides of the damage.
(2)
Clean the area with a cheesecloth that is soaked with naphtha.
(3)
Dry the area with a clean cheesecloth.
S 348-122
(4)
Cut around the insert from the back side of the panel with a hole saw or an equivalent tool.
S 118-120
S 118-121
NOTE: Be careful not to cut the front side of the panel.
____
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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S 888-067
CAUTION: BE CAREFUL WHEN YOU APPLY HEAT NEAR MATERIALS THAT CAN BURN.
_______ THE TEMPERATURE OF THE TEDLAR MUST NEVER BE MORE THAN 200°F OR THE TEMPERATURE AT WHICH THE TEDLAR DISTORTS, WHICHEVER IS LOWER. TOO MUCH HEAT CAN CAUSE DAMAGE TO THE TEDLAR.
(5) Carefully increase the temperature of the insert until you can remove the insert from the panel.
NOTE: If you do not use heat during the removal of the insert,
____ damage to the front panel can occur. Refer to AMM 20-10-27/201 for cautions to obey when you use heat guns.
S 348-124
(6)
Use the manufacturer's instructions to mix the Epocast 1618 A/B.
S 348-125
(7)
Fill the hole with the adhesive mixture.
S 348-126
(8)
Push a new insert slowly into the mixture. Let the mixture flow around the insert and completely fill the hole.
S 348-127
(9)
Let the adhesive mixture cure for 3 hours at 75°F.
S 348-149
(10)
Repair the skin with the procedure given before for panels that do not have core damage.
L. Repair Bassinet Fittings
S 348-130
(1)
Fully remove the old epoxy material.
(2)
Remove some material from under the top skin.
S 348-132
(3)
Use the manufacturer's instructions to mix the Epocast
1618 A/B.
(4)
Fill the hole with the adhesive mixture.
S 348-134
(5)
Apply mylar tape to make a cover on the end of the hole in the bassinet fitting.
S 348-131
S 348-133
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737-300/400/500MAINTENANCE MANUAL
S 348-135
(6)
Slowly push the fitting in the hole.
S 348-136
(7) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 EQUIPMENT/FURNISHINGS(15)
