SPAIN TROUBLE THIS SUMMER ? ONE DAY LAST WEEK, THREE IMPATIENT SHRIEKS OF A LOCOMOTIVE WHISTLE SHATTERED THE MORNING CALM OF SANLUCAR DE BARRAMEDA, A SMALL SPANISH CITY IN THE GRAPE COUNTRY AROUND CADIZ . ON THE DUSTY RAILROAD PLATFORM, THE STATIONMASTER NERVOUSLY PACED BACK AND FORTH WAITING FOR THE EXPECTED PASSENGERS, SEASONAL WORKERS WHO COMMUTE TO THEIR JOBS IN THE VINEYARDS . BUT SCARCELY A SOUL SHOWED UP AT THE STATION, FOR IN SANLUCAR AND NEARBY JEREZ DE LA FRONTERA 3,900 WORKERS WERE OUT ON STRIKE FOR A $2.50 DAILY WAGE (A 50 #$ BOOST), PORTAL-TO-PORTAL PAY BETWEEN THE VINEYARD AND HOME, AND TWO NOT ONE DAILY CIGARS, THE SLANG WORD FOR THE WORKERS' TRADITIONAL 20-MINUTE SIESTA . THE STRIKE WAS THE LATEST AND BIGGEST IN A WAVE OF LABOR UNREST THAT HAS SWEPT DICTATOR FRANCISCO FRANCO'S SPAIN THIS SPRING . IN BARCELONA THE HISPANO SUIZA AIRPLANE-ENGINE PLANT RECENTLY LAID OFF 150 EMPLOYEES FOLLOWING A SERIES OF WORK SLOWDOWNS, WAS FORCED TO HIRE THEM BACK WHEN 2,000 OLIVETTI FACTORY EMPLOYEES THREATENED A SYMPATHY WALKOUT . TWO SITDOWN STRIKES IN A SINGLE WEEK DISRUPTED WORK IN A SEVILLE TEXTILE PLANT . SIX HUNDRED MADRID METALWORKERS HAVE BEEN THREATENING SIMILAR TROUBLE AFTER STUBBORNLY REFUSING TO SIGN A NEW CONTRACT . AID FROM THE PRIESTS . THE COMPLAINTS ARE MANY, FOR THE SPANISH WORKER PUTS IN LONGER HOURS FOR LESS PAY THAN ALMOST ANY OTHER WORKER IN WESTERN EUROPE, AND STRIKES ARE LEGALLY BANNED . WHEN EL CAUDILLO GRANTED SUBSTANTIAL WAGE BOOSTS FOR THE 60,000 STRIKING ASTURIAS COAL MINERS LAST SUMMER, HE MERELY WHETTED THE APPETITES OF WORKERS IN THE REST OF THE COUNTRY ; ANOTHER INCREASE LAST JAN . 1, RAISING UNSKILLED LABORERS FROM A MINIMUM 60 #$ TO $1 PER DAY, DID NOT HELP THE MILLIONS OF SKILLED WORKERS ABOVE THIS MEAGER FLOOR . OPENLY BACKING THE LATEST WAVE OF STRIKES ARE THE PRIESTS OF THE WORKERS' BROTHERHOODS OF CATHOLIC ACTION AND SEVERAL SMALL BUT EFFECTIVE CATHOLIC LAY ORGANIZATIONS THAT REGULARLY BLAST THE CAUDILLO'S TIGHT CONTROLS ON WORKERS FROM BENEATH THE SHELTERING WING OF THE CHURCH . ONE SUCH GROUP, THE YOUNG CHRISTIAN WORKERS, PUBLISHES AN UNCENSORED AND OUTSPOKEN MONTHLY BULLETIN, JUVENTUD OBRERA, THAT DEMANDS FREE, WESTERN-STYLE LABOR UNIONS, LASHES OUT AT THE ANACHRONISTIC SINDICATOS, WHICH FIX PRICES AND WAGES THROUGHOUT THE COUNTRY . SAID JOURNAL EDITOR FRANCISCO GUERRERO, 25, DESCRIBING HIS MISSION LAST WEEK : " OUR WORK IS GOD'S ANSWER TO THE EVIL NEGATION OF ALL HUMAN VALUES . IT IS THE ONLY SALVATION FOR SPAIN'S MASSES, OPPRESSED FROM ABOVE (BY FRANCO) AND MENACED FROM BELOW (BY THE COMMUNISTS) . " A TRIP TO CADIZ . SUCH FRANK TALK HAS THE REGIME SERIOUSLY WORRIED, AND A FEW OF THE MORE PROGRESSIVE MEMBERS OF FRANCO'S AUTHORITARIAN REGIME ARE ANXIOUSLY TRYING TO IMPROVE LABOR CONDITIONS . THE LABOR MINISTRY IS PREPARING A BILL TO LEGALIZE " LABOR " STRIKES (AS DISTINCT FROM " POLITICAL " STRIKES) . ANOTHER MEASURE OF THE REGIME'S CONCERN WAS THE SWIFT SETTLEMENT OF LAST WEEK'S TROUBLE AMONG THE VINEYARD WORKERS OF SANLUCAR AND JEREZ . AS SOON AS WORD OF THE WORK STOPPAGE WAS FLASHED TO MADRID, A LABOR MINISTRY OFFICIAL RACED TO CADIZ AND PRESSURED VINEYARD EMPLOYERS INTO BOWING TO MOST OF THE WORKER DEMANDS, INCLUDING MORE CENTIMOS AS WELL AS THE SECOND CIGAR . TROUBLE WAS OVER FOR THE MOMENT . BUT WORRIED FRANCO AIDES KNOW THAT DOZENS OF IMPORTANT WAGE CONTRACTS IN MANY INDUSTRIES ARE UP FOR RENEWAL DURING THE COMING WEEKS . UNLESS PAY BOOSTS ARE GRANTED PROMPTLY, SPAIN IS ALMOST CERTAINLY IN FOR A SERIOUS NATION-WIDE WAVE OF STRIKES THIS SUMMER .