TM 10-3930-659-20 16-12.    HEATER BLOWER MOTOR MAINTENANCE. This task covers: a. Removal d. Assembly b. Disassembly e. Installation c. Cleaning and Inspection INITIAL SETUP: Equipment Conditions: Materials/Parts: •    Battery disconnect switch in OFF position • Dishwashing compound (Item 10, Appendix C) (see TM 10-3930-659-10) • Rags (Item 27, Appendix C) References: •    Cab rear panel removed (see paragraph 14-22). Tools/Test Equipment: • TM 10-3930-659-10 •    General mechanic's tool kit (Item 44, Appendix F) a. REMOVAL 1. Remove four screws (1), washers (2), and cover (3) from heater housing (4). TA706998 16-38