TM 10-3930-669-20 VOLTAGE TEST (1)   Remove  transmission  shift  lever  (Para 7-20). (2)   Set  multimeter  select  switch  to  VOLTS DC. (3)   Connect  positive  (+)  multimeter  lead  to forward control switch wire 35 terminal. (4)   Connect negative (-) multimeter lead to a known good ground. (5)   Set     MAIN     POWER     switch     to     ON position (TM 10-3930-669-10). (6)   Set   engine   switch   to   ignition   position (TM 10-3930-669-10). (a)   If    there    are    not    22    to    24    vdc present,  perform  Steps  (7)  and  (8) below and repair wire 35 to forward control switch (see schematic Appendix F). (b)   If  there  are  22  to  24  vdc  present, wire 35 is OK. (7)   Set engine switch to off position. (8)   Set    MAIN    POWER    switch    to    OFF position. CONTINUITY TEST (1)   Set multimeter select switch to OHMS. (2)   Check continuity between forward control switch wire 35 and 39 terminals. (3)   Depress forward control switch. (a)   If   there   is   no   continuity,   replace forward control switch (Para 7-21). (b)   If  there  is  continuity,  repair  wire  39 (see schematic Appendix F) and go to Step 4 of this Fault. (4)   Install  transmission  shift  lever  (Para  7- 20). 2-253

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