HOA HDX S120, Инструкция по установке и эксплуатации, Страница: 41 / 43

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Operation & Maintenance
Maintenance Procedures
You will need to maintain your HDX™ coupler on a regular basis and as needed. The maintenance
procedures for this coupler include:
Front C-Casting Buildup
When play exists between the arm pin and the C-
casting, disengage the attachment and place the
template at the arm pin C-casting, as shown
below. Measure across the complete width of the
arm pin location and mark the areas of the coupler
that do not match the arm pin template.
Preheat the C-casting area to 400ºF (205ºC).
Weld across the complete width of the arm pin
location, using the recommended welding
procedures on page 13. Clean the access weld to
match the profile of the arm pin template. After all
welding is complete, grind smooth the outer
diameter of the hook plates.
Gaps between the template and
coupler indicate worn areas. Those
worn areas should be built up and
then ground to fit the template.
After buildup is complete, grind both
sides smooth.
When a template is not available proceed as
follows to rebuild the C-casting:

Allow pin to rest at the bottom of the C-casting.

Wedge pin to the back of the C-casting.

Mark at the top of the pin (approximately
centerline of pin), where the weld buildup
should begin.

Weld three beds, side-by-side, through the
entire width of the C-casting. Grind the weld
smooth and check the pin fit.

Repeat welding process until the desired pin fit
is achieved. Weld using the recommended
welding procedures on page 13.

If the C-casting is severely worn, proceed as
indicated above, but also weld on bottom side
of the C-casting.
Small Pin
If pin bottoms out at the
back of the C-casting,
then the C-casting needs
to be built up.
Large Pin
If gap is more than 1/32”,
then the C-casting needs
to be built up.
HOA Manufacturing HDX™ Cast Coupler Installation & User Manual