Figure 3-30. Shutter Thermostat Replacement

TM-5-6115-545-12 Power Unit Utility Pack Gas Turbine Engine Driven (Air Research Model PPU85-5) Non-Winterized and (Air Research Model PPU85-4) Winterized Manual
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1. Nut 4. stud 7. Packing W 10. Control assy 2. Rod 5. Gasket 8. Nut 3. Nut 6. Thermostat 9. Piston F i g u r e 3 - 3 0 . S h u t t e r T h e r m o s t a t R e p l a c e m e n t (~) Remove nuts ( 1 , f i g . 3 - 3 0 ) which secure shutter assembly threaded rod (2) to control assem- bly (10). (~) Remove the 8 screws and washers ( 1 , 1 A , f i g . 3 - 3 1 ) w~ch secure shutter (2) to the radiator (17), and remove the shutter (2). (2) Installation. Install shutter (2) in the re- verse order of removal. 3 - 1 7 2 . R a d i a t o r . a. Replacement. To replace the radiator ( 1 7 , f i g . 3 - 3 1 ) proceed as follows: (~) Perform steps (s) through @) of p a r a - g r a p h 3 - 1 7 0 b (1). (c) Loosen hose clamp ( 1 , f i g . 3 - 2 9 ) and remove up–per hose (3) from radiator. (y) Remove shutter as described in p a r a g r a p h 3 - 1 7 1 . (s) Remove six screws ( 8 4 , f i g . 3 - 2 2 ) and nuts (85) which secure the battery access door (86) to the lower front housing (93) and remove battery access door (86). ~) Perform steps ~ through ~ of p a r a g r a p h 3 - 8 7 . (1) Removal. (g) Remove 10 screws (55) and nuts (56) (~) Position suitable container to collect which secure the housing top front (57) in the front radiator coolant. and rear. C h a n g e 9 3 - 8 2

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