WATER PUMP, THERMOSTAT & IDLER PULLEYS - CONT

WATER PUMP, THERMOSTAT & IDLER PULLEYS - CONT - TM-5-3820-256-24-5_324

WATER PUMP, THERMOSTAT & IDLER PULLEYS - CONT - TM-5-3820-256-24-5_326

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 WATER PUMP, THERMOSTAT & IDLER PULLEYS Section 9 8. Using a new gasket, secure water pump to crankcase front cover. 9. Install water pump pulley, fan and fan spacer, if one was used. PROCEDURE FOR WATER PUMPS WITH A NUT RETAINED HUB: DISASSEMBLY Disassemble the Water Pump, with a Nut Retained Hub, as follows: 1. Pull off the impeller (1, Fig. 16) using the two 1/2 inch holes provided as shown. Figure 16. - Removing Impeller 1. Impeller 2. Puller NOTE: If the impeller is equipped with 1/4 inch holes, enlarge them to 1/2 inch to accept a small puller (2, Fig. 16). 2. Pry out the ceramic seat and boot (1, Fig. 17) from the impeller and discard it, along with the water pump seal (2) as shown. NOTE: The metal part of the seal will remain in the housing until later. Figure 17. - Water Pump Seal 1. Seat and boot 2. Seal 3. Remove the hub nut (1, Fig. 18) hub (2), and key (3) (if equipped), as shown in the sectional view of the water pump. Figure 18. - Water Pump Cross Section (Nut Retained Hub) 1. Hub nut 2. Pulley hub 3. Woodruff key early model only 4. Water pump seal 5. Rear bearing seal CGES-185-3 PRINTED IN UNITED STATES OF AMERICA Page 10

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