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- Warm air generator - Adhesive tape (TB 08-919A) B. Procedure 1) Close access door (1) [2]. 2) Remove the upholstery panel of access door (1) [2]. 3) Protect the paint of access door (1) [2] around transparent panel (5) [6] with adhesive tape (9) (TB 08-919A). 4) Remove screws (4) and washers (3). 5) Moderately heat sealant bead (10) with a warm air generator to soften sealant. Remove sealant bead (10) using a spatula. CAUTION : UNBOND THE TRANSPARENT PANEL LENGTHWISE IN ORDER NOT TO DAMAGE ITS BEARING SURFACE. 6) Unbond transparent panel (5) [6] with spatulas. Begin with L.H. and R.H. sides then unbond lengthwise. 7) Remove and discard transparent panel (5) [6]. 2. INSTALLATION OF THE DOOR TRANSPARENT PANEL (Figure 401) A. Tools and consumable materials - Abrasive cloth (TB 05-916A) - Adhesive tape (TB 08-919A) - Cleaning agent (TB 11-922) - Primer (TB 16-911) - Cleaning agent (TB 11-921) - Adhesive (TB 08-934) - Sealant (TB 08-004B) - Sealant (TB 09-900) - Lintfree clean cloths - Isopropyl alcohol (TB 10-002) - Sealant (TB 09-002A) - Loctite (TB 08-908) B. Procedure 1) Remove any adhesive and sealant residues from access door (1) [2] and rubber stops (11). Inspect the bonding surface for condition. 2) Bond new rubber stops (11) on access door (1) [2] with loctite (TB 08-908) - refer to 20-00-08. 3) Install transparent panel (5) [6] on access door (1) [2] with screws (4) and washers (3). Do not tighten screws (4). NOTE : Clear the protection of transparent panel (5) [6] over a width of about 2 in. (50 mm). 4) Make sure transparent panel (5) [6] is correctly positioned. Reposition if necessary. 5) Remove transparent panel (5) [6]. 6) Clean the bonding surface of transparent panel (5) [6] with isopropyl alcohol (TB 10-002), wait for 10 minutes and apply primer (TB 16-911). Allow to dry. 7) Bond new seals (7) to transparent panel (5) [6] with sealant (TB 08-004B). Allow to dry. 8) Sand the bonding surface of access door (1) [2] with abrasive cloth (TB 05-916A). Clean the bonding surface with cleaning agent (TB 11-922). 9) Using adhesive tape (TB 08-919A), protect contact surfaces (8) of seals (7) of transparent panel (5) [6] on access door (1) [2]. CAUTION : READ THE TECHNICAL HANDBOOK ON ADHESIVE (TB 08-934) CAREFULLY. 10) Apply adhesive (TB 08-934) on the bonding surface of access door (1) [2]. NOTE : Apply the adhesive evenly over a 0.08 in. (2 mm) thick layer. 11) Remove adhesive tape from contact surfaces (8). 12) Apply sealant (TB 09-002A) on the seating face of washers (3) - refer to 20-00-09. 13) Install transparent panel (5) [6] with washers (3) and screws (4). Moderately tighten screws (4) to avoid transparent panel cracking. 中国通航网 www.ga.cn 通航翻译 www.aviation.cn 本文链接地址：TB20 MAINTENANCE MANUAL 56 窗 TB20飞机维护手册(13) |
