SEAL-OIL-YM 3148540 - Caterpillar

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 connectionsThe 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 1 g00806834
9X-1114 Electronic Tachometer (with backlight) (1) Battery + (2) Signal + (3) Signal - (4) Battery -
Illustration 2 g00806860
9X-1116 Tachometer (with backlight) (5) Battery + (6) Signal + (7) Signal - (8) Battery -
Illustration 3 g00806856
9X-1117 Tachometer (without backlight) (9) Signal + (10) Signal -
Illustration 4 g00806871
197-7347 Tachometer (Electronic) (with backlight) (11) Signal + (12) Signal - (13) No connection (14) No connection (15) Backlight voltage + (16) Backlight voltage -
Illustration 5 g00806883
197-7348 Tachometer Gp (Electronic) (without backlight) (17) Signal + (18) Signal - (19) No connection (20) No connection (21) No connection (22) No connection