- Make sure that the quantity of oil in the oil tank of the engine 1(2) is correct.
- If necessary, fill the oil tank (Ref. TASK 12-13-79-610-002) or (Ref. TASK 12-13-79-610-002).
- The ON legend of this pushbuttonswitch comes on.
On the lower ECAM display unit, on the ENGINE page:
- The symbol for the starter valve is in the open position.
NOTE : During cold weather, large oil pressure surges can occur.
____
NOTE : A pressure relief valve in the lubrication unit limits the oil
____ pressure to 305 psi (21 bar).
NOTE : The oil level in the oil tank can go down by 1.6 USgal (6 l) during
____ start.
NOTE : If a starter air pressure is used that is less than the recommended
____ quantity, slow N2 acceleration and subsequent rpm stop can occur.
NOTE : Make sure that you do not go over the starter limits that follow:
____
- no engagement of the starter when the core speed is above 20 percent.
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- the acceptable duty cycles can be performed by using one the three following procedures:
- 4 consecutive cycles, each of 2 minutes duration with a 20 second rest between 2 consecutive attempts. After 4 cycles, wait 15 minutes to allow starter to cool before you try a new start or motoring. - one 5 minute cycle followed by a cooling period of 2 minutes after the first motoring and a 10 minutes interval between the following ones. - one 15 minute cycle followed by a 15 minute cooling period before you try a new start or motoring. It is recommended to use the 15 minute cycle only for cooling the engine to do a borescope inspection.
NOTE : While the engine is motored, do a visual check for leaks at the fuel
____
and oil system tubes and manifolds.
7. On the overhead CTL & IND panel 22VU:
- Release the ENG/MAN START/1(2) pushbutton switch.
8. On the ENG panel 115VU:
- Set the ENG/MODE/CRANK/NORM/IGN/START selector switch to NORM.
9. On the ECAM control panel:
- Get the ENGINE page.
10. On the lower ECAM display unit, on the ENGINE page:
- After a minimum of 5 minutes after the end of the test, look at the oil level indication.
- The ON legend of this pushbuttonswitch goes off.
On the lower ECAM display unit, on the ENGINE page:
- The symbol for the starter valve is in the closed position.
On the lower ECAM display unit:
- The ENGINE page goes out of view.
On the lower ECAM display unit:
- The ENGINE page comes into view.
If necessary, fill the oil tank(Ref. TASK 12-13-79-610-002) or(Ref. TASK 12-13-79-610-002).
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11. After engine shutdown, when the - The OFF legends of these pushbutton rotor movement stops, on the switches come on. HYD/FUEL panel 40VU:
- Release all the FUEL/PUMPS
pushbutton switches.
12. Close the circuit breaker On the upper ECAM display unit:
1KC1(2) to close the LP valve. - The ENG 1(2) LP VALVE OPEN message goes out of view.
The master CAUT light goes off.
Subtask 71-00-00-200-052
B. Listen for unusual noise.
(1) During engine coastdown, while the components continue to turn, listen for unusual noise from these components.
NOTE : Clicking fan blades, gear noise and seal rubs are normal
____
noise.
Subtask 71-00-00-210-052
C. Do a general visual inspection.
NOTE : Hydromechanical Units (HMUs) that have fluorocarbon (Viton)
____ external seals (SB 73-015) can leak fuel for a short time when they are below 0 deg.C (32.00 deg.F) (Modification 1 and 2)
R (Ref. TASK 71-00-00-790-002).
(1) Make a check of the engine, fan frame and turbine for unusual roughness.
(2) Make an inspection of the lubrication system lines, fittings and accessories for leaks (Ref. TASK 79-00-00-210-003).
5. Close-up
________
Subtask 71-00-00-862-058
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本文链接地址：A320飞机维护手册 AMM 动力装置 POWER PLANT 1(39)
