Poly Welding (5/16-5/20)

Couple of cool projects that week. I had the opportunity to an old aerial truck. It is a 75' ladder than extends by means of a series pulleys with steel cables all being pulled by a hydraulic motor. A section of the the ladder had some steel cable that was beginning to fray and needed to be replaced. In order to access the cable the ladder was fully extended down the length of the shop and supported by a stand at the end of ladder in case the trucks hydraulic stands failed.




We had a slow day that week and my shop lead to advantage of the time to train me to plastic weld. A lot of the trucks we service have poly plastic tanks and will require repair from time to time. As with all welding surface preparation is key, the surface must be buffed out an clean as possible. The equipment is essentially a glue gun on steroids. After the gun pre-heats a rod is inserted in the tip of the gun and with steady pressure and speed a pass is made along the two pieces of poly plastic are joined together. Pretty straight forward process.

Hours: 40
Running Total: 262