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STEP 13: DIMPLE FIRST HOLE Remove tool. Remove any chips or burrs from the drilling operation. Place the assembly on a solid surface. Using the punch supplied with the 71 SO - TOOL and 71SO-TOOLC, align the tip of the punch with the drilled hole and dimple the upper drop tube by striking the punch with a hammer until the drop tube is formed into countersunk hole in the inlet tube. After punching, remove any chips that may have fallen into the inlet tube screw hole. s-igure Is STEP 14: ASSEMBLE FIRST SCREW Ensure that the drop tube was formed into the countersunk screw hole as shown in Figure 14 if not return to step 13. Apply black moly grease to screw and tighten first screw into inlet tube with a screwdriver. Use only the taptite screws that are supplied with the unit. Seating torque is 20 in -lbs min. to 35 in -lbs max. Screw head should be flush with the drop tube. Do not over tighten. Ensure the drop tube is formed into countersunk hole Figure 14 1f STEP 15: DIMPLE REMAINING HOLES Remove any chips or burrs from the drilling operation. Dimple the next (2) holes as done in Step 13. Make sure the assembly is on a solid surface when punching. After punching, remove any chips that may have fallen into the inlet tube screw hole. Align punch with drilled hole 0 Figure 15 STEP 16: ASSEMBLE OTHER SCREWS Apply black moly grease to screws and tighten the other (2) screws into inlet tube with a screwdriver as done in Step 14. Use only the taptite screws that are supplied with the unit. Seating torque is 20 in - lbs min. to 35 in -lbs max. Do not over tighten. STEP 17: APPLY GREASE TO LOWER O-RING AND BODY THREADS Apply black moly grease to the lower tube o -ring and body threads as shown. Make sure coverage is completely around the o -ring. Install o -ring in groove just above threads. Apply grease around o -ring O-ring groove Body threads Figure 17