Change 2 4-77 Section V.  LIGHTING SYSTEM MAINTENANCE 4-47.  LIGHTING SYSTEM MAINTENANCE TASK SUMMARY TASK PAGE PARA. PROCEDURES NO. 4-48. Service Headlight Lamp Maintenance 4-78 4-49. Service Headlight Assembly Replacement 4-80 4-50. Blackout Drive Light Assembly Replacement 4-82 4-51. Blackout Drive Light Lamp Replacement 4-84 4-52. Front Composite Light Assembly Replacement 4-86 4-53. Front Composite Light Lamp Replacement 4-88 4-54. Side Marker Light Lens and Lamp Replacement 4-89 4-55. Side Marker Light Assembly Replacement 4-90 4-56. Rear Composite Light Assembly Replacement 4-92 4-57. Rear Composite Light Lamp Replacement 4-94 4-58. Headlight Beam Selector Switch and Bracket Replacement 4-95 4-59. Main Light Switch Replacement 4-96 4-60. Stoplight Switch (11663279) Maintenance 4-98 4-61. Stoplight Switch (RCSK 17810) Maintenance 4-100 4-62. Directional Signal Flasher Replacement 4-102 4-63. Directional Signal Control Indicator Lamp Replacement 4-103 4-64. Directional Signal Control (12339312-1) Maintenance 4-104 4-65. Directional Signal Control Replacement 4-106 4-66. Directional Signal Control Cancelling Ring Replacement 4-107 4-67. Service Headlight and Blackout Drive Light 4-108 Electrical Connector and Grommet Replacement 4-68. Backup Light Lamp Replacement 4-109 4-69. Backup Light Assembly Replacement 4-110 4-70. Backup Light Bracket Replacement 4-112 TM 9 2320-280-20-2