f71329  leakage tracing device-integral tank leakage test
use of test box
1) locate box as close as practical to test area
2) when dye solution or liquid is used, fill tank flammable liquidfrom tank cover before putting test
3) caution : before putting tank in storage, drain flammable liquidfrom tank through drain cock and purge tank
use of items inluded in box
f71329-35 double cup assembly
1) connect hose from cup outer segment to vacuum source in box
2) connect hose from cup inner segment to pressure outlet in box attank
3) connect air supply to box and open valve to air ejector toobtain vacuum
4) place double cup on test surface with inner cup over leak if cupdoes not adhere, prepare area with duxseal, or putty to prevent airleakage from seams or from inner cup
5) turn on air regulate air pressure to 4 p.s.i
6) when liquid or dye solution is being used in tank, bleed airfrom inner cup by loosening clamp on bleed hose until hose fillswith liquid
7) maintain above conditions until completion of test
f71329-44 fastener assembly
8) install fastener assembly in fastener hole
9) connect fastener to pressure outlet in box at the tank unsingf71329-28 hose assembly
10) close valve to air ejector and connect box to air supply
11) turn on air regulator and regulate to 4 p.s.i
12) when dye solution or liquid is being used, bleed air fromfastener by loosening bleed hose clamp until hose fills withliquid
f71329-54 vacuum cup assembly
1) connect vacuum cup to vacuum outlet in box with f71329-28 hoseassembly
2) connect box to air supply and open valve to air ejector
3) paint soap bubble solution on head of underhead sealed fastenerto be tested
4) immediately apply  vacuum cup over fastener and observethrough plexiglass end piece
maintenance
1) drain air filter when water is present
2) lift test relief valves before each use, avoid turnning cap
3) drain hoses of liquid before stowing in box, mop up spillage inbox

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广州市江弘航空器材有限公司
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