TIMING, GEAR TRAIN & FRONT COVER - CONT

TIMING, GEAR TRAIN & FRONT COVER - CONT - TM-5-3820-256-24-5_287

TIMING, GEAR TRAIN & FRONT COVER - CONT - TM-5-3820-256-24-5_289

TM-5-3820-256-24-5 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12 NSN 3820-01-246-4276 Manual
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SERVICE MANUAL TIMING, GEAR TRAIN & FRONT COVER Section 7 Figure 4A. - Crankcase Front Cover - Engines Equipped with Robert Bosch Model MW Fuel Injection Pump 1. Water pump 2. Front cover 3. Lube oil pump 4. Crankshaft 5. Tachometer drive 6. Injection pump drive gear cover 7. Injection pump gear (with gear cover removed) Passages for coolant, water and lube oil, are cast into the front cover. The water inlet to the crankcase and the unfiltered oil passageway to the oil cooler align with holes in the front cover. Machined surfaces are provided for mounting the pumps. The water pump cone is machined and acts as the "back" plate for the water pump. The water pump, oil pump and injection pump can be removed without disturbing the front cover. This applies whether the engine is equipped with a "full" front cover as shown in Fig. 5, or with an "earless" front cover as shown in Fig. 6. The front cover used is dependent on the application. Figure 5. - "Full" Front Cover Figure 6. - "Earless" Front Cover A common gasket is used for both the "Full" & "Earless" front covers, however, installation instructions must be followed to prevent improper gasket installation and subsequent engine damage, (as described under Installation of this section). CGES-185-3 PRINTED IN UNITED STATES OF AMERICA Page 3

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