2001/08/01 New Electronic Tachometers Have Different Connection To Wiring Harness {7462} Caterpillar


New Electronic Tachometers Have Different Connection To Wiring Harness {7462}
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Engine: Commercial
  • All
    3406B (S/N: 9PL1-UP)
    3412 (S/N: 5RL1-UP)
    3412C (S/N: PTL1-UP)
    G3306 SI TA (S/N: CNR1-UP)
    3508 (S/N: 3HM1-UP; 8TL1-UP; 9WN1-UP; CAW1-UP; CMR1-UP; CNF1-UP; PTK1-UP)
    3512 (S/N: CMJ1-UP; FDR1-UP; PTG1-UP; PTH1-UP)
    3516 (S/N: 5MJ1-UP; CAL1-UP; CMD1-UP; PTD1-UP)
    3608 (S/N: 1ZD1-UP; 7WR1-UP; 8LL1-UP)
    G3508 (S/N: CPJ1-UP; CPY1-UP)
    G3512 (S/N: CRN1-UP; CSP1-UP)
    G3516 (S/N: CPG1-UP; CSZ1-UP)
    Electric Power Generation:
    SR4 (S/N: 2MM1-UP; 3YM1-UP; 4LM1-UP; 5JM1-UP; 6JM1-UP)
  • There are two new tachometers available: 197-7347 Tachometer (Electronic) and 197-7348 Tachometer Gp (Electronic). The former 9X-1114 Electronic Tachometer and 9X-1116 Tachometer are now serviced by 197-7347 Tachometer (Electronic). The former 9X-1117 Tachometer is serviced by 197-7348 Tachometer Gp (Electronic).

    When the 9X-1114 Electronic Tachometer, 9X-1117 Tachometer, and the 9X-1116 Tachometer are replaced, the wiring harness connectors must be converted to DT connectors. In order to convert to DT connectors, a 155-2274 Connecting Plug Kit, 186-3736 Connector Sockets, and 8T-8737 Seal Plugs need to be ordered. Refer to Table 1 for a listing of all the parts that are needed to convert to DT connectors.

    Table 1
    Parts Needed to Replace the 9X-1114 Electronic Tachometer, 9X-1116 Tachometer, and the 9X-1117 Tachometer    
    Former Tachometer     Serviced By New Tachometer     Parts that Are Needed to Convert to DT Connectors    
    9X-1114 Electronic Tachometer     197-7347 Tachometer (Electronic)     155-2274 Connecting Plug Kit (Qty 1)
    186-3736 Connector Socket (Qty 4)
    8T-8737 Seal Plug (Qty 2) (1)    
    9X-1116 Tachometer     197-7347 Tachometer (Electronic)     155-2274 Connecting Plug Kit (Qty 1)
    186-3736 Connector Socket (Qty 4)
    8T-8737 Seal Plug (Qty 2) (1)    
    9X-1117 Tachometer     197-7348 Tachometer Gp (Electronic)     155-2274 Connecting Plug Kit (Qty 1)
    186-3736 Connector Socket (Qty 2)
    8T-8737 Seal Plug (Qty 4) (1)    
    ( 1 ) Use the 8T-8737 Seal Plugs to seal unused holes in the 155-2274 Connecting Plug Kit .

    The 197-7347 Tachometer (Electronic) has a backlight. The 197-7347 Tachometer (Electronic) requires four 186-3736 Connector Sockets. These sockets are required for the following connections:

    • positive signal connections and negative signal connections

    • positive battery connections and negative battery connections

    The 197-7348 Tachometer Gp (Electronic) does not have a backlight. The 197-7348 Tachometer Gp (Electronic) only requires two connector sockets: one connector socket for the positive signal and one connector socket for the negative signal.




    Illustration 1g00806834

    9X-1114 Electronic Tachometer (with backlight)

    (1) Battery +

    (2) Signal +

    (3) Signal -

    (4) Battery -




    Illustration 2g00806860

    9X-1116 Tachometer (with backlight)

    (5) Battery +

    (6) Signal +

    (7) Signal -

    (8) Battery -




    Illustration 3g00806856

    9X-1117 Tachometer (without backlight)

    (9) Signal +

    (10) Signal -




    Illustration 4g00806871

    197-7347 Tachometer (Electronic) (with backlight)

    (11) Signal +

    (12) Signal -

    (13) No connection

    (14) No connection

    (15) Backlight voltage +

    (16) Backlight voltage -




    Illustration 5g00806883

    197-7348 Tachometer Gp (Electronic) (without backlight)

    (17) Signal +

    (18) Signal -

    (19) No connection

    (20) No connection

    (21) No connection

    (22) No connection

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