Not by itself. Repair experience is a skill. L-1B requires special or advanced knowledge of the company's own products or procedures, shown by the company's documentation and the specialist's history with those specific products.
Ask what he knows that a competitor's best mechanic does not
The test is comparative and product-specific. Ten years fixing hydraulics is valuable, but any well-run dealer can hire a hydraulics mechanic, and an officer will ask why this transfer is needed. The answer must be that the company's attachments have proprietary designs, calibration procedures and known failure patterns that are documented only inside the company, and that he is one of the few people who hold that knowledge at an advanced level because he helped develop the procedures, wrote or revised the service manuals, and diagnosed the field failures recorded in the warranty database.
The deciding documents are those manuals, change notices and warranty records, together with evidence that he authored or applied them. If the company's products are conventional and serviced from the equipment maker's public documentation, the knowledge is not specialized and the case should not be filed.