S 865-057
CAUTION:_______YOU MUST OPEN THESE CIRCUIT BREAKERS. IF YOU DO NOT OPEN THESE CIRCUIT BREAKERS, HYDRAULIC FLUID WILL MOVE FROM SYSTEM B TO SYSTEM A. HYDRAULIC FLUID LEAKAGE FROM THE SYSTEM A RESERVOIR CAN OCCUR IF THE HYDRAULIC FLUID MOVES BETWEEN THE TWO SYSTEMS.
(5)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P6 Main Power Distribution Panel
1) LDG GEAR SYS XFR VALVE - PRIM CONT
2) LDG GEAR SYS XFR VALVE - ALT CONT
S 095-058
(6) Remove the ground lock assemblies from the main landing gear (AMM 32-00-01/201).
S 865-059
CAUTION: DO NOT TURN THE STEERING TILLER WHEN THE SHOCK STRUT OF
_______ THE NOSE LANDING GEAR IS FULLY EXTENDED. YOU CAN CAUSE DAMAGE TO THE CENTERING CAMS IN THE SHOCK STRUT IF YOU DO THIS.
(7)
Make sure the main landing gear is fully extended and locked with the control lever in the DN position.
(8)
Pressurize hydraulic systems A and B (AMM 29-15-00/201).
(9)
Fully retract the flaps to prevent the operation of the PTU.
S 865-060
S 865-061
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737-300/400/500MAINTENANCE MANUAL
S 865-062
(10)
Set the throttle levers to a position in the range of between 17 degrees and 27 degrees.
E.
Do the Test
S 865-063
WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE MAIN
_______ LANDING GEAR. FAST MOVEMENT OF THE MAIN LANDING GEAR CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(1)
Move the control lever for the main landing gear to UP and make sure the landing gear retracts.
S 865-065
(2)
Make sure the two green lights and the two red lights for the main landing gear are off.
S 865-067
(3)
Move the control lever to OFF.
S 865-068
(4)
Move the control lever to DN and make sure the landing gear extends.
S 865-069
(5)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6 Main Power Distribution Panel
1) LDG GEAR SYS XFR VALVE - PRIM CONT
2) LDG GEAR SYS XFR VALVE - ALT CONT
S 865-070
(6)
Release the pressure from the hydraulic system (AMM 29-15-00/201).
S 495-071
(7)
Install the ground lock assemblies in the main landing gear
(AMM 32-00-01/201).
S 615-072
(8)
If it is necessary, fill the two hydraulic reservoirs with hydraulic fluid (AMM 12-12-00/301).
S 865-073
(9)
If electrical, hydraulic, or pneumatic power are not necessary, remove them from the airplane.
(10)
Lower the airplane and remove the jacks (AMM 07-11-11/201).
S 585-074
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TASK 32-32-00-715-001
3. Main Landing Gear Operational Test___________________________________
A. Standard Tools and Equipment
(1)
Test Bench - Hydraulic: 0-3000 psi, 20 GPM at 3000 psi, with nominal filtration of 5 and 15 microns absolute
