NOTE: No clearance allowed.

(c)  
Adjust end clearance between ends of rollers at location "E" and aft track (2). Remove shim laminations from forward rollers, then aft rollers if necessary, to maintain 0.01 (+0.02/-0.01) inch end clearance. (See section B-B.) Do not remove the two washers (26) on each roller (3).

(d)  
Roll upper web inboard until location "F" is within 1 to 2 inches of end "B."

(e)  
Repeat steps (b) and (c) using roller locations "F" with end "B."

(f)  
Check that upper web rolls the entire length of track installation without interference.

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2.  Electronic Equipment Compartment External Access Door Test
A.  Slide door into stowed position. Check for unobstructed movement of door and track.
B.  Close and lock door and visually check seating of door seal.
C.  Check operation of door warning system. Refer to Door Warning System, 52-71-0.
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MISCELLANEOUS EXTERIOR SERVICE DOORS - DESCRIPTION AND OPERATION
1.  Aft Toilet Service Door
A.  The door is located on the aft lower right surface of the fuselage. (See figure 1.) When unlatched the door hinges open to provide access to a four inch drain outlet and a flush line fitting and drain valve handle for each waste tank.
2.  CSD Oil Reservoir Sight Gage Access Door
A.  The door is located aft of the engine oil tank access door on the left removable cowl panel on each engine. (See figure 1.) It is a small rectangular shaped door that hinges up to provide access to the CSD oil reservoir sight gage. The door is secured by quick-opening fasteners.
3.  Engine Oil Tank Access Door
A.  The door is located on the lower left side of the left removable cowl panel on each engine. (See figure 1.) When opened, the door hinges up to provide access to the oil tank filler cap, and when closed, is secured by quick-opening fasteners.
4.  Ground Air Conditioning Access Door
A.  The ground air conditioning access door forms a part of the lower fuselage surface on the centerline at the intersection of the wing center section front spar and body contour. (See  figure 1.) The door hinges down to provide access to the ground service conditioned air connection on the airplane air conditioning system to allow use of a ground service cart when the airplane air conditioning system is off. The door is secured by a flush type latch on the aft circular part of the door.
5.  Section 48 Access and Blowout Door
A.  The door forms a part of the lower left side of the fuselage aft of the passenger cabin pressure bulkhead. (See figure 1.) The door provides access to the APU fuel lines, air inlet duct, air inlet door actuator and the aft surface control systems. The door latch is arranged to release the door to open position within a load range of 52 to 68 pounds.
6.  Water Service Door
A.  The water service door is a rectangular shaped door with rounded corners that is located on the aft lower right side of the fuselage. (See figure 1.) When unlatched the door hinges open approximately 90 degrees to provide access to the passenger water system water tank fill valve, water fill connection, water quantity indicator, overflow fitting, pressure gauge, and air valve.
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 Door Locations  533 
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500  Door Locations 
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7.  External Power Receptacle Door
A.  The door is located on the forward right side of the fuselage (Fig. 1). It is a small rectangular shaped door that provides access to the external power receptacle.
8.  Forward Toilet Service Door
A.  The door is located on the right side of the fuselage (Fig. 1). When unlatched the door hinges open in two stages, rotating around two hinge points, for a total arc of approximately 145 degrees. When closed and locked the door fairs with the fuselage contour.
9.  Oxygen System Charging Panel Door
A.  The door is rectangular shaped with rounded corners and forms a part of the right exterior surface of the fuselage (Fig. 1). When unlatched the door hinges up to provide access to the oxygen system filler valve, two shutoff valves and two oxygen system pressure indicators.
　
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