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INTENTIONALLY BLANK
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MLG Two Stage Shock Absorber - Pressure/Extension Graph (Imp. Units) Figure 309/TASK 12-14-32-991-025- 13 (SHEET 1)
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MLG Two Stage Shock Absorber - Pressure/Extension Graph (Imp. Units) Figure 309/TASK 12-14-32-991-025- 23 (SHEET 2)
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MLG Two Stage Shock Absorber - Pressure/Extension Graph (Imp. Units) Figure 309/TASK 12-14-32-991-025- 33 (SHEET 3)
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MLG Two Stage Shock Absorber - Pressure Extension Graph (Imp. Units)
Figure 309A/TASK 12-14-32-991-025-A13 (SHEET 1)
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MLG Two Stage Shock Absorber - Pressure Extension Graph (Imp. Units)
Figure 309A/TASK 12-14-32-991-025-A23 (SHEET 2)
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MLG Two Stage Shock Absorber - Pressure Extension Graph (Imp. Units)
Figure 309A/TASK 12-14-32-991-025-A33 (SHEET 3)
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**ON A/C 301-399,
(Ref. Fig. 309B/TASK 12-14-32-991-025-B) **ON A/C ALL
WARNING : MAKE SURE THAT THE AREA AROUND THE AIRCRAFT IS CLEAR OF PERSONS
_______ AND EQUIPMENT. WHEN YOU PRESSURIZE/DEPRESSURIZE THE SHOCK ABSORBER, WITH THE AIRCRAFT WEIGHT ON THE GROUND, THE AIRCRAFT WILL MOVE.
WARNING : MAKE SURE THAT THE STANDARD CHARGING EQUIPMENT IS SAFE TO USE
_______ ABOVE 140 BAR (2030.5278 PSI). THIS WILL PREVENT INJURY AND DAMAGE.
CAUTION : ALWAYS ADD NITROGEN SLOWLY WHEN YOU PRESSURIZE THE SHOCK
_______ ABSORBER. IF YOU ADD THE NITROGEN TOO QUICKLY, THE TEMPERATURE WILL INCREASE AND HAVE AN EFFECT ON THE SHOCK ABSORBER PRESSURE.
CAUTION : MAKE SURE THAT YOU USE A GAGE WITH THE SPECIFIED PRESSURE
_______ RANGE. THIS IS NECESSARY TO GET AN ACCURATE PRESSURE MEASUREMENT.
NOTE : It is recommended that you wait a minimum of ten minutes after
____ taxiing or towing before you do this procedure. This will let you get a stable temperature and a more accurate value of the shock absorber extension and pressures.
NOTE : To do this procedure it is necessary to have 2 standard charging
____ equipments and 2 pressure gages 140 bar (2030.5278 psi). The equipment must be safe to use at over 140 bar (2030.5278 psi).
(1)
Measure and write down dimension H.
(2)
Install the first standard charging equipment on the top charging valve (1):
NOTE : If the equipment manufacturers assembly/operating instructions
____ are different to the data given, use the equipment manufacturers instructions.
(a)
Remove the blanking cap (2) from the top charging valve (1).
(b)
Make sure that the control valves (23) and (25) are closed.
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MLG Two Stage Shock Absorber - Pressure Extension Graph (Imp. Units) Figure 309B/TASK 12-14-32-991-025-B13 (SHEET 1)
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MLG Two Stage Shock Absorber - Pressure Extension Graph (Imp. Units)
Figure 309B/TASK 12-14-32-991-025-B23 (SHEET 2)
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MLG Two Stage Shock Absorber - Pressure Extension Graph (Imp. Units)
Figure 309B/TASK 12-14-32-991-025-B33 (SHEET 3)
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(c)
Connect the filling hose (21) to the three-way valve (22).
(d)
Connect the filling hose (21) to the top charging valve (1).
(e)
Install the first pressure gage 140 bar (2030.5278 psi) (20) on the three-way valve (22).
(3)
Slowly open the top charging valve (1).
(4)
At the top charging valve, read and record the pressure shown on the pressure gage.
(5)
Close the top charging valve (1).
(6)
Use a thermometer (-45 deg C to 70 deg C (-49 deg F to 158 deg F)) to measure the temperature of the MLG adjacent to the top charging valve.
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