5 v r t v t r i j A e AIMING LUGS i MEASUREMENTS L 2y 2y FOR LOCATING SCREWS 3 is j I o i t APPROX 0r a O 3 PAN HEAD WOOD SCREWS 3 4 PLYWOOD BOARD 10 x 10 Fig 8 94 T 3 Almer Checking Fixture 1 Fasten a 10 inch square of 3 4 plywood to the wall 2 Install three 1 z No 6 pan head wood screws on the wooden board as shown in Figure 8 94 so that the screw heads are approximately 1 9 inch from the board and spaced as shown 3 Set the numeral 0 in the DOWN view window of the simer 4 Hold the seating plane of the aimer in contact with the three screws and with the horizontal arm parallel with the floor fig 8 95 The screw heads must be long enough to provide clearance between the flange of the simer and the board CHECKING FIXTURE o 0 LEFT HAND AIMER RIGHT HAND AIMER Fig 9S Checking Vertical Calibration rnRV IR RN07 MANUAL