Prepare materials for a tipper subframe using the jig

What is going on

Work order WO-26-0425 is an aluminium tipper body for Murrumbidgee Shire Council. On Tuesday the subframe rails were cut 15 mm short because a superseded drawing was used, and the rails were scrapped. The Fabrication Manager has asked you to prepare the materials again from the correct revision and set up the subframe jig with the Leading Hand Welder. The press brake has a back gauge fault under repair, the ten tonne crane is due for its quarterly inspection and the shop has just had an arc flash injury, so pre-start checks and screen positions are being watched closely. The build is due on 16 October and the shop cannot afford another scrapped set of rails.

Your brief

Read the work order and the correct drawing, prepare the cut list, draw materials from stores, cut and prepare the sections using the correct tools and pre-start checks, set up the jig and present the prepared materials for tack welding, recording everything on the work order.

Work through it

You do not need to do it all. Doing a few of these will show you what the work is like. Your ticks and notes stay on this device.

• Open WO-26-0425 in the Work Orders and Build Tracker, read the build notes and confirm from the drawing supplied by your assessor which revision is current and what changed from the previous revision.
• Prepare a cut list for the subframe rails and cross members from the drawing, showing section, length, quantity and any holes or notches, and check it against the scrapped rails non-conformance NCR-26-093.
• Check the Materials and Components Stock register for the sections you need, record what you will draw and raise a note where stock is below the reorder point.
• Complete the pre-start check for the press brake and the cold saw using the Plant and Equipment Register, and explain what you will do because the press brake back gauge fault is still open.
• Describe how you will set up the subframe jig and fixtures with the Leading Hand Welder, including how you will check squareness and diagonal measurements before tacking.
• Read the Welding and Hot Work Procedure and list the safe work practices you must follow in the bay while the rails are tacked, including screen position and extraction.
• Update the work order stage notes with the materials prepared, the drawing revision used and the jig check results.

What someone in this role would produce

• Cut list checked against the current drawing revision
• Stock check note from the materials register
• Completed pre-start checks for press brake and saw
• Jig set up and squareness check record
• Updated work order notes