FAULTY MAINT PROCS CAUSE THE AILERON SYS OF AN MLG TO BECOME INOP.

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MYSELF AND 3 OTHER MECHS WERE DOING AND LEARNING THE JOB CARD (TEST SERVO VALVE STICKING SWITCH). BEING THE FACT WE HAD NEVER PERFORMED SUCH TEST ON THE MLG BEFORE; WE ASKED OTHER MECHS WHO HAD. THEY ALL SAID TO INSTALL THE RIG PIN IN UNTIL YOU HEAR A SNAP. THAT WE DID AND THE MECH IN THE COCKPIT ON 2-WAY RADIO TOLD US ON THE GND THAT THE CHK FUNCTIONED CORRECTLY ACCORDING TO THE JOB CARD PROCS. IT WAS I WHO INSERTED THE RIG PIN INTO THE R SIDE WHILE ANOTHER MECH DID THE L SIDE. I FEEL THAT THE JOB CARD AND URGENCY OF FORMAL; ON THE JOB TRAINING IS LACKING AND THIS CAUSED THE QUESTIONS OF MECHS DOING THE FUNCTIONAL CHK. AT A LATER DATE I WAS INFORMED THAT THE ACFT RETURNED WITH AILERON PROBS. PLTS DISCREPANCY IS LISTED BELOW. ITEM: UPON RELEASING THE CTL LOCK THE AILERONS WENT TO FULL R AILERON. USING A GREAT AMOUNT OF FORCE YOU CAN BRING THE AILERONS TO NEUTRAL BUT NOT PUT IN ANY L AILERON. RETURNED TO GATE AFTER TAXI OUT. SUPPLEMENTAL INFORMATION FROM ACN 240116: I FEEL VERY STRONGLY THAT OUR CHK CARD IS VERY VAGUE IN TELLING HOW TO INSERT THE PIN. IT ONLY SAYS TO SIMPLY 'INSERT RIG PIN.' THE PIN USED IS A THREADED BOLT? HOW FAR? HOW TIGHT? IT MAKES NO MENTION OF THIS AT ALL. I AM TOLD THAT MANY OF OUR WORK CARDS ARE BEING REVISED SO WE CAN GET ACCURATE INFO FROM THEM. SUPPLEMENTAL INFORMATION FROM ACN 239757: THE REPRESENTATIVES WERE LOOKING INTO FINDING THE CORRECT RIGGING PINS FOR THIS TEST. SUPPLEMENTAL INFORMATION FROM ACN 239465: DURING THE CHK THE AILERON POS WAS FULL L (WOULD NOT NEUTRALIZE AT CTR). CALLBACK CONVERSATION WITH REPORTER REVEALED THE FOLLOWING: RPTR SAID THE FAA WAS ALREADY ON THE CASE. HE SAID THAT THE RIG PIN HE WAS GIVEN WAS THE PROPER ONE; ETCHED WITH THE CORRECT PART NUMBER. HE SAID THAT THE IMPROPER INSERTION OF THE PIN RENDERED THE SERVO INOP. HE INFERRED THAT TRAINING PROVIDED BY THE ACR WAS PRACTICALLY NON-EXISTENT AND SHOULD BE IMPROVED. HE SAID THAT THE JOB CARDS; WHICH DESCRIBE MAINT PROCS ARE WOEFULLY INADEQUATE. HE THINKS THE FAULT IS IN THE TRANSLATION FROM THE MANUFACTURER'S LANGUAGE TO ENGLISH.