TM10-3930-660-34 16-6.  PRIORITY VALVE - REPAIR This task covers: a.  Disassembly b.  Cleaning c.  Inspection d.  Assembly INITIAL SETUP: Tools Materials/Parts Tool Kit, Automotive Mechanics Hydraulic Oil (App.B, Item 35) Lint-Free Rags (App.B, Item 38) Equipment Condition O-rings (3, 5, 7) Priority valve removed, TM10-3930-660-20. DISASSEMBLY 1. REMOVE RELIEF VALVE CARTRIDGE (1)FROM HOUSING (2). 2. REMOVE AND DISCARD O-RING (3). 3. REMOVE PLUG (4).REMOVE AND DISCARDO- RING (5). 4. REMOVE PLUG (6).REMOVE AND DISCARDO- RING (7). 5.  REMOVE SPRING (8) AND SPOOL (9). CLEANING See Cleaning Instructions, para.2-10. INSPECTION See Inspection Instructions, para.2-11. ASSEMBLY NOTE Wipe all sealing surfaces of valve  clean and dry.  Apply film of clean hydraulic oil to all seals as they are installed. 1. INSTALL NEW O-RING (5) ON PLUG (4). INSTALL PLUG (4) IN HOUSING (2). FINGER TIGHTEN PLUG (4). 2. INSTALL SPOOL (9) AND SPRING (8). 3. INSTALL NEW O-RING (7) ON PLUG (6).  INSTALL PLUG   (6)   IN   HOUSING   (2).      FINGER   TIGHTEN PLUG(6). 4. INSTALL   NEW   O-RING   (3)   ON   RELIEF   VALVE CARTRIDGE (1).INSTALL RELIEF VALVE CARTRIDGE (1) IN HOUSING (2). 5. INSTALL PRIORITY VALVE, TM10-3930-660-20. 16-30