TM 10-3930-659-34 4-32. CONVERTER RELIEF VALVE PRESSURE CHECK (Con’t). 7. Operate  engine  at  1500  rpm  (see  TM  10-3930-659-10)   and   note   pressure   reading   on   pressure   gage   (10). Reading must be 123-152 psi (848-1048 kPa).  If pressure reading is not within specification, replace transmission assembly (see paragraph 4-40). 8. Shut down engine (see TM 10-3930-659-10). 9. Remove pressure gage (10), adapter (11), adapter (12), and union (14) from hose (5). 10. Remove two preformed packings (13) from union (14).  Discard preformed packings. 4-140