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737-300/400/500MAINTENANCE MANUAL
(c) Do the last two steps until the wiper shows no dirt.
S 114-006
(5) For plastic laminates and painted surfaces only, do these steps:
(a) Clean the surface as specified in this procedure.
CAUTION: DO NOT RUB THE PAINTED SURFACE AROUND THE DECAL EDGE WITH
_______ ABRASIVE PAPER IF A CLEAR HYDRAULIC FLUID RESISTANT COATING WAS USED AS EDGE SEALER FOR THE DECAL. YOU CAN BREAK THE EDGE SEAL WITH THE ABRASIVE PAPER.
(b)
Lightly rub the surface with 280-grit (minimum grit-number) abrasive paper.
(c)
Clean the surface again as specified in this procedure.
F. Apply Stencil Markings
S 214-007
(1)
Make sure all stencil cuts are sharp and free of burrs.
S 434-008
(2)
Attach the stencil tightly to the surface.
S 374-009
(3)
Find the paint applicable to the surface finish as follows:
(a) If you use BMS 10-60, Type II Enamel or BMS 10-79, Type II Primer, refer to Decorative Exterior Finishes for preparation instructions (AMM 51-21-99/701).
WARNING: STORE EC 942 IN A OPEN CONTAINER TO PREVENT CONCENTRATION
_______ OF FLAMMABLE HYDROGEN GAS. EC 942 CHEMICALLY REACTS WITH METAL CONTAINERS AND FREES FLAMMABLE HYDROGEN GAS.
(b) If you use EC 942 Black (Corogard 12), do these steps: 1) Mix it fully.
CAUTION: DO NOT ADD MORE THINNER THAN A QUANTITY EQUAL TO
_______ ONE-FIFTH OF THE BASE MATERIAL.
2) Make the base material thin with mixture (by volume) of 5/8 methyl isobutyl ketone and 3/8 butyl acetate.
NOTE: You can use this material until 16 hours after you
____ make it thin (the pot life is 16 hours).
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737-300/400/500MAINTENANCE MANUAL
S 374-012
WARNING:_______ DO NOT BREATHE THE VAPORS OF FINISHES AND SOLVENTS.
THEY CONTAIN TOXIC AND FLAMABLE COMPONENTS. USE APPROVED
RESPIRATORY PROTECTION AS NECESSARY. DO NOT GET IN EYES OR ON
SKIN AND CLOTHING. KEEP MATERIALS AWAY FROM SOURCE OF
IGNITION. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
CAUTION:_______ DO NOT APPLY FINISHES WHEN THE AMBIENT TEMPERATURE IS LESS
THAN 50 DEGREES FAHRENHEIT OR THE RELATIVE HUMIDITY IS MORE
THAN 85 PERCENT. THESE CONDITIONS DO NOT PERMIT A SATISFACTORY
FINISH BOND.
(4) Apply the paint with a sprayer. NOTE: Make sure you have a sufficiently wet layer to get uniform
____ flowout, but not to cause runs and sags.
S 354-011
(5) After the marking is dry, remove the rough edges from the markings with BMS 3-2 solvent or a burnishing tool.
NOTE: A different procedure to prevent rough edges is to remove the
____ masking tape while the paint film is wet. This permits the paint to flow out.
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737-300/400/500MAINTENANCE MANUAL
COAXIAL CABLE - MAINTENANCE PRACTICES
_____________________________________
1. General_______
A. The subject that follows describes how to use a time domain reflectometer (TDR; Tektronix Model 1502B) to do a check of coaxial cables. The TDR is used to locate opens, shorts, crimps and other defects in coax cables up to 2,000 feet long. The TDR can also be used on twisted pair or parallel wires which are the same length.
B. The TDR transmits pulses of energy down the cable. The TDR then monitors the impedance changes in the pulse energy that is reflected back. You can see these reflections on the liquid crystal display (LCD). You then find failures in the cable from the properties of the waveform shown on the LCD.
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