TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 1190 of 1275
TM9-2350-311-20-1 GO 1 VTM CONNECTIONS AND CHECKOUT – CONTINUED Turn engine off before installing pulse tachometer. Clean all mounting surfaces before installing pulse tachometer to prevent entry of foreign substances that may damage engine or transducer. INSTALL PULSE TACHOMETER (TK ITEM ,34); . 5 - Disconnect tachometer cable (para 9-18). - Install pulse tachometer in place of removed tachometer cable. - Connect P1 of transducer cable W4 to 6 J2 on VTM. - Connect P2 of transducer cable to connector on pulse tachometer. l NOTE If rpm or power tests vary more than 5%, remove tach drive adapter and pulse tachometer from tach cable. Connect pulse tachometer to tach cable interface on engine. Rotation of vehicle tach speed adapter may be required to connect pulse tachometer. I CAUTION Be sure cable W4 is clear of belts and fan blades. I Go to GO 2 (Figure 2, sheet 8). Figure 2, Sheet 7 of 20 I-13 WARNING CAUTION MAKE CABLE CONNECTIONS: