Term
| WHAT MATERIAL ARE MOST LOW-PRESSURE RIGID FLUID LINES MADE OF? |
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Definition
| 1100-1/2 HARD OR 3003-1/2 HARD ALUMINUM ALLOY TUBING |
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Term
| IS THE SIZE OF A RIGID FLUID LINE DETERMINED BY ITS INSIDE OR OUTSIDE DIAMETER? |
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Definition
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Term
| WHEN ROUTING A FLUID LINE PARALLEL TO AN ELECTRICAL WIRE BUNDLE, WHICH SHOULD BE ON TOP? |
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Definition
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Term
| WHAT IS THE FUNCTION OF THE LAY LINE (IDENTIFICATION STRIPE) THAT RUNS THE LENGTH OF THE FLEXABLE HOSE? |
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Definition
| THIS LINE SHOWS WHETHER OR NOT THE LINE HAS BEEN TWISTED. (SHOULD NOT BE TWISTED) |
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Term
| HOW CAN YOU DISTINGUSH AN AN FLUID LINE FITTING FROM AN AC FITTING? |
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Definition
- AN FITTING: HAS A SHOULDER AND THE END OF THE FLARE CONE AND FIRST THREAD.
- AC FITTING: THE THREADS EXTEND ALL THE WAY TO THE FLARE CONE.
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Term
| WHERE ARE QUICK-DISCONNECT FLUID LINE COUPLINGS NORMALLY USED IN AN AIRCRAFT HYDRAULIC SYSTEM? |
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Definition
| USED WHERE THE ENGINE-DRIVEN PUMP CONNECTS INTO THE HYDRAULIC SYSTEM. |
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Term
| IS THE SIZE OF A FLEXABLE HOSE DETERMINED BY ITS INSIDE OR OUTSIDE DIAMETER? |
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Definition
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Term
| WHAT IS THE MINIMUM AMOUNT OF SLACK THAT MUST BE LEFT WHEN A FLEXABLE HOSE IS INSTALLED IN AN AIRCRAFT HYDRAULIC SYSTEM? |
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Definition
| AT LEAST 5% LONGER THAN THE DISTANCE BETWEEN THE FITTINGS. (PROVIDES NEEDED SLACK) |
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Term
| HOW TIGHT SHOULD AN MS FLARELESS FITTING BE TIGHTENED? |
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Definition
| TIGHTEN BY HAND UNTIL SNUG AND TURNED WITH A WRENCH 1/6th TO 1/3rd TURN. (NEVER MORE THEN 1/3rd) |
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Term
| WHAT DAMAGE CAN BE CAUSE BY OVERTIGHTENING AN MS FLARELESS FITTING? |
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Definition
| DRIVES THE CUTTING EDGE OF THE SLEEVE DEEPLY INTO THE TUBE AND WEAKENS IT. |
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Term
| WHAT KIND OF RIGID TUBING CAN BE FLARED WITH A DOUBLE FLARE? |
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Definition
| 5052-O AND 6061-T ALUMINUM ALLOY TUBING SIZES FROM 1/8th INCH TO 3/8th INCH OD(OUTSIDE DIAMETER). |
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Term
| WHAT IS THE PRINCIPAL ADVANTAGE OF TEFLON HOSE FOR USE IN AN AIRCRAFT HYDRAULIC SYSTEM? |
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Definition
| TEFLON HOSE RETAINS HIGH STRENGTH UNDER CONDITIONS OF HIGH TEMP. |
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Term
| WHAT PRECAUTIONS SHOULD BE TAKEN WHEN FLARING ALUMINUM ALLOY TUBING? |
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Definition
| THE END OF THE TUBING MUST BE POLISED SO IT WILL NOT CRACK WHEN IT IS STRETCHED WITH THE FLARING TOOL. |
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Term
| HOW MUCH PRESSURE IS USED TO PROOF TEST A FLEXIBLE HOSE ASSEMBLY? |
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Definition
| VARIES WITH THE HOSE, GENERALLY ABOUT TWO TIMES THE RECOMMENDED OPERATING PRESSURE. |
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