Pallet Locks Installation 511
25-56-61 Page 402 Figure 401 (Sheet 1) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 15/68
528 Pallet Locks Installation
Nov 15/69 Figure 401 (Sheet 2) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 25-56-61 Page 403
PALLET BRAKES - REMOVAL/INSTALLATION
1. Remove Pallet Brake (See figure 401.)
A. Lift both floor track attachment release handles to the vertical position and slide pallet brake forward or aft approximately one half-inch until pallet brake will lift clear of the floor track.
2. Install Pallet Brake (See figure 401.)
A. Place pallet brake on floor track adjacent to corresponding part numbered decal on cabin floor.
B. Lift both floor track attachment release handles to the vertical position, align the floor track attachment studs with circular cutouts in floor track and allow studs to enter cutouts.
C. Slide pallet brake forward or aft approximately one half-inch to align with decal for proper location and press floor track attachment release handles down to the locked position. Ensure that the release handles engage the index pins.
D. Check that the pallet brake is secured in the floor track by attempting to remove the brake without releasing the floor track attachments.
511
May 15/68 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 25-56-71 Page 401
Pallet Brake Installation 511
25-56-71Page 402 Figure 401 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 15/68
AFT STOPS - REMOVAL/INSTALLATION
1. General
A. The cargo pallet aft stops are attached to floor track Nos. 3, 4, 5, and 6 at the aft end of the cargo system in any of the cargo carrying configurations.
2. Remove Aft Stops (See figure 401.)
A. Lift plunger release handle to its vertical position and slide stop forward approximately one half-inch until stop will lift clear of floor track.
3. Install Aft Stops (See figure 401.)
A. Place stop on floor track adjacent to corresponding part numbered decal on cabin floor, at location dependent on number of cargo pallets to be carried.
B. Lift plunger release handle to its vertical position, slide stop forward or aft until the floor track attachment studs enter circular cutouts in the floor track, and align stop with decal for proper location.
C. Press plunger release handle down to engage plunger in floor track. Ensure that plunger release handle is in full down position.
NOTE: The plunger release handle is spring-loaded and will tilt up approximately 45 degrees when the plunger is not completely extended into the floor track.
D. Check that the aft stop is secured in the floor track by attempting to remove the stop without releasing the plunger.
511
May 15/68 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 25-56-81 Page 401
Aft Stops Installation 511
25-56-81 Figure 401 May 15/68
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
THRESHOLD ASSEMBLY - REMOVAL/INSTALLATION
1. General
A. The three main cargo door threshold assembly sections overlap each other and must be removed in order, the forward section first, then center section, and aft section.
B. The threshold sections attachment fittings, attached floor track No. 1 must also be removed whenever the threshold sections are removed.
2. Remove Threshold Sections (Fig. 401)
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