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1 SPN1/ARM UM-1 29-02-2008 4 Connect the SPN1 signal cable and tie the cable to the cross arm with the cable ties provided. 2 Screw the threaded bolt into the SPN1. This attaches the SPN1 to the cross arm ball joint . HOLD Attach the SPN1/ARM crossarm to an upright. M8 thread Bubble level Ball joint locking cap the lever provided. Level the SPN1 - the bubble should be within the black ring in the bubble level. Tighten the locking cap. Level the SPN1: 3 To Loosen the locking cap on the ball joint using Lever SPN1/ARM Mounting Instructions HOLD ">
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