500
Feb 15/69 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 29-34-0 Page 501
1) ON AIRPLANES WITH P/N 10-60552-1 PRESSURE SWITCHES INSTALLED ON THE SYSTEM PRESSURE MODULE, check that master caution and engine No. 1 pump low pressure warning lights go out between 950 and 1450 psi.
2) ON AIRPLANES WITH P/N 10-60552-11 OR -22 PRESSURE SWITCHES INSTALLED ON THE SYSTEM PRESSURE MODULE, check that master caution and engine No. 1 pump low pressure warning lights go out between 1200 and 1500 psi.
3) ON AIRPLANES WITH P/N 10-60552-35 PRESSURE SWITCHES INSTALLED ON THE SYSTEM PRESSURE MODULE, check that master caution and engine No. 1 pump low pressure warning lights go out between 1400 and 1600 psi.
(e)
Operate corresponding press-to-test circuit. Check that warning light illuminates.
(f)
Slowly decrease pressure:
1) ON AIRPLANES WITH P/N 10-60552-1 PRESSURE SWITCHES INSTALLED ON THE SYSTEM PRESSURE MODULE, check that the master caution warning light and the corresponding low pressure light illuminates between 1350 and 700 psi.
2) ON AIRPLANES WITH P/N 10-60552-11 OR -22 PRESSURE SWITCHES INSTALLED ON THE SYSTEM PRESSURE MODULE, check that the master caution warning light and the corresponding low pressure light illuminates between 1400 and 1100 psi.
3) ON AIRPLANES WITH P/N 10-60552-35 PRESSURE SWITCHES INSTALLED ON THE SYSTEM PRESSURE MODULE, check that the master caution warning light and the corresponding low pressure light illuminates between 1500 and 1300 psi.
(g)
Turn off ground test bench and disconnect pressure hose connected to ground test bench in step (b).
(h)
Reconnect pressure hose to pressure port of pump.
(i)
Repeat steps (a) thru (h) for engine No. 2 pump low pressure warning system.
(2)
Test system B low pressure warning system.
(a)
Repeat steps (1)(a) thru (1)(h) for No. 1 Elec. Pump Low Pressure Warning System.
(b)
Repeat steps (1)(a) thru (1)(h) for No. 2 Elec. Pump Low Pressure Warning System.
(3)
Test standby system low pressure warning system.
(a)
Operate master DIM AND TEST switch and check that the STANDBY LOW PRESSURE light illuminates.
(b)
Open STANDBY HYD PUMP NORMAL and ALTERNATE circuit breakers (P6).
(c)
Reset Master CAUTION light (pilot's light shield).
(d)
Position FLT CONTROL A switch (P5) to STBY RUD momentarily. Return switch to OFF.
(e)
Close STANDBY HYD PUMP NORMAL and ALTERNATE circuit breakers (P6).
(f)
Position FLT CONTROL A switch to STBY RUD. Check that STANDBY HYD LOW PRESSURE light illuminates momentarily and then extinguishes. Master CAUTION light may illuminate and should be reset if it illuminates.
(g)
Open STANDBY HYD PUMP NORMAL and ALTERNATE circuit breakers (P6).
(h)
Position FLT CONTROL B switch (P5) to STBY RUD momentarily. Return switch to OFF.
(i)
Close STANDBY HYD PUMP NORMAL and ALTERNATE circuit breakers (P6).
(j)
Position FLT CONTROL B switch to STBY RUD. Check that STANDBY HYD LOW PRESSURE light illuminates momentarily and then extinguishes. Master CAUTION light may illuminate and should be reset if it illuminates.
(k)
Open STANDBY HYD PUMP NORMAL and ALTERNATE circuit breakers (P6).
(l)
Position either FLT CONTROL A or FLT CONTROL B switch to STBY RUD momentarily. Return switch to OFF.
(m)
Close STANDBY HYD PUMP NORMAL and ALTERNATE circuit breakers (P6).
(n)
Position ALTERNATE FLAPS position switch (P5) to OFF.
(o)
Position ALTERNATE FLAPS arming switch (P5) to ARM. Check that STANDBY HYD LOW PRESSURE light illuminates momentarily and then extinguishes. Master CAUTION light may illuminate and should be reset if it illuminates.
(p)
Position ALTERNATE FLAPS arming switch to OFF.
(q)
Open STANDBY HYD PUMP NORMAL and ALTERNATE circuit breakers (P6).
(r)
Position either FLT CONTROL A or FLT CONTROL B switch to STBY RUD momentarily. Return switch to OFF.
(s)
Open AC INDICATION circuit breaker (P6).
(t)
Close STANDBY HYD PUMP NORMAL and ALTERNATE circuit breakers (P6).
(u)
Position either FLT CONTROL A or FLT CONTROL B switch to STBY RUD. Check that STANDBY HYD LOW PRESSURE light illuminates and then extinguishes. Master CAUTION light may illuminate and should be reset if it illuminates. Return FLT CONTROL switch to off.
(v)
Close AC INDICATION circuit breaker (P6).
(w)
Disconnect standby pump pressure hose at quick disconnect and connect hose to ground test bench. Cap pressure port of pump.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：737 AMM 飞机维护手册 液压 HYDRAULIC POWER(82)
