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SAT551G DISASSEMBLY NHAT0138 1. Remove valves at retainer plates. I Do not use a magnetic pick-up tool. SAT553G a. Use a screwdriver to remove retainer plates. SAT554G b. Remove retainer plates while holding spring, plugs or sleeves. I Remove plugs slowly to prevent internal parts from jump- SAT137D c. Place mating surface of valve body face down, and remove I If a valve is hard to remove, place valve body face down I Be careful not to drop or damage valves and sleeves. SAT138D INSPECTION NHAT0139 Valve Spring NHAT0139S01 I Measure free length and outer diameter of each valve spring. Inspection standard: Refer to SDS, AT-383. I Replace valve springs if deformed or fatigued. Control Valves NHAT0139S02 I Check sliding surfaces of valves, sleeves and plugs. GI MA EM LC EC FE AX SU BR ST RS BT HA SC EL IDX REPAIR FOR COMPONENT PARTS Control Valve Upper Body (Cont’d) AT-321 |