WATER PUMP, THERMOSTAT & IDLER PULLEYS - CONT

WATER PUMP, THERMOSTAT & IDLER PULLEYS - CONT - TM-5-3820-256-24-5_323

WATER PUMP, THERMOSTAT & IDLER PULLEYS - CONT - TM-5-3820-256-24-5_325

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 Figure 13. - Old Style Bearing Housing and Coolant Seal 1. Coolant Seal 2. Bearing Housing 7. To install coolant seal seat into impeller: a. Moisten seal seat (6, Fig. 8) and cup O.D. with water before assembly. b. By hand, press seal seat to bottom of impeller counter bore. c. Support shaft at front end. Take up shaft end play toward rear by pushing down on the housing. d. Press impeller (1, Fig. 8) onto shaft with shaft supported on front end as shown in Fig. 14. Prior to fully installing, place two 0.71 mm (0.028 in.) feeler gauges under the impeller as shown in Fig. 15. e. IMPORTANT: Impeller to housing clearance 4 and 8 vane pumps: 0.25 - 1.17 mm (0.010 - 0.046 in.) Figure 14. - Installing Impeller 1. Impeller Figure 15. - Measuring Impeller to Housing Clearance 1. Sleeve 2. Feeler Gauge Determine impeller to housing clearance as follows: 1. With feeler gauges in place press impeller until feeler gauges (2, Fig. 15) are snug. 2. Use a sleeve (1, Fig. 15) under press ram as shaft will protrude slightly from impeller. CGES-185-3 PRINTED IN UNITED STATES OF AMERICA Page 9

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