Brief Description: Fuel Systems Tubing Installation
Completed steps 1-4 page 27iS/U-05
Step 1: Straightened 30 9/32in. [769.1 mm] of ATO-035X3/8 tubing. Fabricated the F-12127B by starting at the firewall end. Made the two shallow bends and the 82° bend by referencing Figure 2. Step 2: Placed the nut then the sleeve called out in Figure 2 over the firewall end of the tubing. Flared the end of the tube. Slid the sleeve up against the flare. Step 3: Fed the bypass end of the tube through the snap bushing shown in Figure 1 and slid the tube aft. Placed the nut and sleeve over the bypass end of the tube. Flared the bypass end of the tube. Step 4: Attached the fuel line to the bulkhead fitting as shown in Figure 1. Step 5: Attached the fuel line to the firewall with hardware as called out in Figure 1.
Completed steps 1-5 page 27iS/U-06
Step 1: Straightened 30 1/4 in. [768.4 mm] of ATO-035X3/8 tubing. Fabricated the F-12127C by starting at the firewall end. Made the two shallow bends and the 78° bend by referencing Figure 2 and View A-A. Step 2: Placed the nut then the sleeve called out in Figure 2 over the firewall end of the tubing. Flared the firewall end of the tube. Slid the sleeve up against the flare. Step 3: Fed the bypass end of the tube through the HW-00014 and slid the tube aft. Placed the nut and sleeve over the bypass end of the tube. Flared the bypass end of the tube. Step 4: Made a small bend in the F-12127C as necessary at the HW-00014 to align the F-12127C and F-12127B with the Bypass Fitting Assembly as shown in Figure 1. Attached the F-12127C and the F-12127B to Bypass Fitting Assembly as shown in Figure 1. Checked to make sure the fitting marked for measurement on Page 27iS-05 was connected to the F-12127B. Step 5: Attached the F-12127C to the bulkhead fitting as shown in Figure 1, then attached to the firewall with hardware as called out in Figure 1.
Torqued the connection fittings to 115 inch pounds
