540E - SKIDDER, LOG 21 MAIN HYDRAULIC SYSTEM Parts group 21 MAIN HYDRAULIC SYSTEM 2160 HYDRAULIC SYSTEM . CONTROL VALVE PRESSURE AND RETURN HDYRAULICS CONTROL VALVE PRESSURE AND RETURN HDYRAULICS HYDRAULIC PUMP AND RESERVOIR HOSES AND FITTINGS HYDRAULIC PUMP GASKET TO TRANSMISSION HYDRAULIC PUMP (LARGE AND SMALL) HYDRAULIC PUMP (LARGE AND SMALL) HYDRAULIC PUMP (LARGE AND SMALL) (CONTINUED) HYDRAULIC PUMP ADAPTERS HYDRAULIC RESERVOIR AND RETURN FILTER COLD START DUMP VALVE PRIORITY VALVE PRIORITY VALVE Select group 21 MAIN HYDRAULIC SYSTEM John Deere: 2160 HYDRAULIC SYSTEM