5. PT2/TT2 LINE
FWD
B
Inlet Cowl Probe Connections Figure 402
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WITH THE POSITION OF THE INLET COWL STORAGE.
ADJUSTMENT FEATURES
FOR NOSE UP STORAGE, YOU MUST CONNECT THE STRAP
(3 LOCATIONS)
TO THE FORWARD RECEPTACLE. FOR NOSE DOWN STORAGE, YOU MUST CONNECT THE STRAP TO THE AFT RECEPTACLE.
Inlet Cowl Sling Installation Figure 403
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
WARNING:_______ IF THE CONTROL LEVER ON THE RATCHET HOIST IS NOT PUSHED
INTO THE NEUTRAL OR FREE POSITION, THE CONTROL LEVER CAN
RELEASE THE LOAD. ONLY PERSONS WHO KNOW THE CORRECT
INSTRUCTIONS TO OPERATE THE RATCHET HOISTS MUST OPERATE
THEM. INJURY TO PERSONS AND DAMAGE TO THE INLET COWL CAN
OCCUR IF THE INLET COWL FALLS.
(a)
You can install a ratchet hoist between the hoist and the sling to lift the inlet cowl by smaller quantities.
(b)
If the hoist includes an adjustable load limiter, use the load limits on the placard of the sling to adjust the load.
(c)
If the hoist does not have an adjustable load limit, install a dynamometer for the sling link.
(d)
Engage the hoist hook with the sling link (or the dynamometer if it is installed).
(e)
Operate the hoist to put the sling above the inlet cowl.
(f)
Install and tighten the spindles in the receptacles of the inlet cowl hoist at the three and nine o'clock positions. 1) If the inlet cowl is put in storage with the nose up,
connect the strap with no ratchet hoist to the forward receptacle. 2) Install the remaining three spindles with the ratchet hoists to the inlet cowl.
WARNING:_______MAKE SURE THE SPINDLES ARE TIGHTENEND CORRECTLY. INJURY TO PERSONS OR DAMAGE TO THE INLET COWL CAN OCCUR IF THE SPINDLES LOOSEN WHEN THE INLET COWL IS LIFTED.
(g) Tighten the spindles to 120 pound-inches (13.6 newton-meters).
CAUTION: ADJUST THE HOIST TO BALANCE THE WEIGHT OF THE INLET COWL
_______ AND THE SLING EQUIPMENT. IF THE WEIGHT IS NOT BALANCED, THE COWL CAN MOVE SUFFICIENTLY TO CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT WHEN THE COWL IS RELEASED FROM THE SHEAR PIN.
(h)
Adjust the hoist and the sling straps until the straps are tight.
(i)
Make sure the load on the inlet cowl is not more than the weight of the inlet cowl and the sling equipment.
NOTE: Use the placard on the sling to find the weight of the
____ inlet cowl. The sling equipment weighs approximately 130 pounds (59.1 Kg).
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S 024-008-N00
(7) Remove the inlet cowl (1) (Fig. 404).
(a) Remove the mount bolts (4), washers (3), and spacers (2) which attach the inlet cowl to the engine flange A.
NOTE: There are 60 bolts which attach the inlet cowl.
____
CAUTION: MAKE SURE THE INLET COWL DOES NOT TURN AND POSSIBLY HIT
_______ THE ENGINE AS THE SHEAR PINS ARE DISENGAGED. IF IT IS NECESSARY, USE MORE PERSONS TO HOLD THE INLET COWL STABLE WHEN YOU DISENGAGE THE SHEAR PINS. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR IF THE INLET COWL IS NOT HELD CORRECTLY.
(b)
Pull the inlet cowl (1) forward and off the shear pins (5).
1) Put the inlet cowl above the platform with the pads or sandbags, and away from the airplane.
