3238480 - 5550B34 horn tone - adjust

 Refer to op.. 5550B30  l/h or r/h horn (one) - r+r1. Operate on the IU+2019 suitable screw and adjust the tone of the IU+2019 warning horn. Test the IU+2019 warning horn to check if the tone is suitable. Refer to op.. 5550B30  l/h or r/h horn (one) - r+r