Watch the continuation of a line boring and bore welding process on a Caterpillar 730 Articulated Dump Truck A-frame with a worn eye. Observe the use of a Sir Meccanica WS2 portable machine for bore welding, line boring, and surface finishing. Follow the step-by-step repair process, including cleaning, welding, machining to specifications, drilling retaining plate bolt holes, and cryo freeze shrink fitting a new bushing using liquid nitrogen. Conclude with the application of Caterpillar yellow paint, preparing the repaired A-frame for immediate reinstallation.
Line Boring and Bore Welding Caterpillar 730 Dump Truck A-frame Eye - Part 2
Cutting Edge Engineering Australia via YouTube
Overview
Syllabus
Intro
RUNNING 135 AMPS 19 VOLTS
SETUP BORING BAR
USING ECGT INSERT
BORING OUT IMM TO MAKE A CLEAN SURFACE
FOR FINAL WELOING LAYERS
FINAL WELDING LAYER
USING WIRE WHEEL TO CLEAN WELD
DOING WELO FOR BUSHING
MACHINING FACE TO SPEC
MACHINING LIP TO FIT RETAINING PLATE
MACHINING WELD FOR STOP SHOULDER
USING SNAP GAUGE TO MEASURE ID
USING SIR MECCANICA DIAL INDICATOR
TO MEASURE ADVANCING THE TOOL
DOUBLE CHECK FINAL CUT MEASUREMENT
MACHINING OFF RUN OUT RING
USING CCGT INSERT FOR CHAMFER
QUICK COAT OF JAM
Taught by
Cutting Edge Engineering Australia
