(c)
Adjust the hand jacks so that all three of the rubber supports on the dolly touch the cowl.
(d)
Attach the engine cowling strap around the nose cowl and to the two connections on the dolly.
CAUTION: ADJUST THE ENGINE COWLING STRAP TO HOLD ONLY THE WEIGHT OF
_______ THE INLET COWL. MORE FORCE CAN CAUSE DAMAGE TO THE INLET COWL.
(e) Tighten the engine cowling strap to hold the cowl to the dolly.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
ENGINE COWLING STRAP
COWLING STRAP ATTACH POINT (2 LOCATIONS)
COWLING
RUBBER
SUPORTS
(3 LOCATIONS)
CENTER HAND JACK
HAND JACKS (2 LOCATIONS)
Inlet Cowl Removal Equipment Installation Nose Cowl Dolly
Figure 406
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 034-054-C00
(6) Remove the bolts that attach the inlet cowl to the engine inlet attachment flange (Fig. 405).
S 034-059-C00
WARNING:_______BE CAREFUL WHEN YOU MOVE THE INLET COWL. BECAUSE THE INLET COWL WEIGHS 255 POUNDS (116 KG), INJURIES TO PERSONS CAN OCCUR.
CAUTION: USE PRECAUTION TO PREVENT DAMAGE TO THE STRUT FIRE/OVERHEAT
_______ DETECTOR ELEMENTS, GENERATOR, GENERATOR COOLING DUCT, AND HYDRAULIC HOSES. RESTRICTIONS TO MOVEMENT ARE AS FOLLOWS:
1.
ONE-HALF INCH (12.7 MM) CLEARANCE BETWEEN INLET COWL ATTACHMENT FLANGE AND UNDER SURFACE OF STRUT. LIMITS APPLY TO ALL VERTICAL MOVEMENT.
2.
ONE-TENTH INCH (2.54 MM) CLEARANCE BETWEEN AERODYNAMIC SEAL AND INLET COWL STEP APPROXIMATELY 24 INCHES (610 MM) IN LENGTH EXTENDING FROM 11:30 THROUGH 12:30 O'CLOCK POSITION. LIMITS APPLY TO VERTICAL MOVEMENT FOR FIRST INCH (25.4 MM) OF FORWARD TRAVEL.
3.
ONE-HALF INCH (12.7 MM) CLEARANCE BETWEEN INLET COWL ATTACHMENT FLANGE AND GENERATOR AT THE 8 O'CLOCK POSITION. LIMITS APPLY TO FORWARD MOVEMENT TO 0.75 INCH (19.05 MM) AND ALL SIDE MOVEMENT TO THE LEFT.
4.
ONE-HALF INCH (12.7 MM) CLEARANCE BETWEEN FEEDER CABLE BRACKET AND INLET COWL ATTACHMENT FLANGE. LIMITS APPLY TO ALL UPWARD AND LEFT SIDEWAYS MOVEMENT FOR FIRST 5 INCHES (127 MM) OF FORWARD TRAVEL.
5.
ONE-HALF INCH (12.7 MM) CLEARANCE BETWEEN HYDRAULIC HOSE SUPPORT BRACKET AND INLET COWL ATTACHMENT FLANGE AT THE
6:30 O'CLOCK POSITION. LIMITS APPLY TO LEFT SIDEWAYS AND DOWNWARD MOVEMENT FOR FIRST 6 INCHES (152 MM) OF FORWARD TRAVEL.
(7)
Pull the inlet cowl forward approximately 0.75 inches (19.05 mm) to be clear of the shear pins on the engine inlet attachment flange.
(a)
The shear pins are attached to the attachment flange at the
3:10 and 8:50 o'clock positions.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 824-061-C00
(8) Move the inlet cowl radially through the 4:30 o'clock position approximately 10 inches (254 mm).
NOTE: At this position, the inlet cowl is clear and can be moved
____
more freely.
S 034-063-C00
(9)
Move the dolly with the inlet cowl away from the engine and lower to its normal position.
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