2001/07/16 Caterpillar


New Electronic Tachometers Have Different Connection To Wiring Harness {7462}

Usage:

D6D 03X


Machine Engines:
  • All
    Asphalt Paver:
    AP-1000 (S/N: 1HD1-UP)
    Cold Planer:
    PR-1000C (S/N: 5XC1-UP)
    PR-450C (S/N: 7PJ1-UP)
    PR-750C (S/N: 7CK1-UP)
    Off-Highway Truck/Tractor:
    786 (S/N: 80A1-UP; 81A1-UP)
    Road Reclaimer/Soil Stabilizer:
    RM-250C (S/N: AWG1-UP)
    RR-250 (S/N: 6ED1-UP)
    RR-250B (S/N: 3RR1-UP)
    SS-250 (S/N: 6DD1-UP)
    SS-250B (S/N: 5GR1-UP)
    Track-Type Loader:
    963B (S/N: 9BL1-UP)
    973 (S/N: 90L1-UP)
    Track-Type Skidder:
    D4H Series II (S/N: 2AC1-UP)
    Track-Type Tractor:
    D6D (S/N: 31X1-UP)
    D7G (S/N: 4YB1-UP)
    D6D DD SR (S/N: 7XF1-UP)
    Wheel Tractor-Scraper:
    627 (S/N: 54K1-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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