Case CX330

As you may know, the CX330 is the upgrade to the
9050B model from Case.  The CX330 is quite an upgrade,
being much bigger than the 9050B. 

In standard form, the CX330 is almost 5,000 pounds
heavier than the 9050B.  This added weight comes
from a larger counterweight and from a redesigned
carbody that will now completely enclose the swing
system. 

These added pounds will also contribute to the boost
in the CX330s over-front capacity, and in combination
with higher hydraulic pressures the travel circuit,
give the excavator a very impressive 16% boost in
draw bar pull, which means more power for negotiating
poor underfoot conditions and very steep grades.

In addition to the new features, the CX330s digging
linkage has been enhanced in many ways.  The boom
and arm, deeper in cross section to accommodate
higher digging forces, now incorporate V-groove
type welds that are placed by robots and 100 percent
ultra sound inspected.

The boom foot and boom to arm pivots use improved
bushings, new plated pins, and new dust seals that
combine to make a more durable and easier to take
care of assembly.  The newly hardened chrome pins
will also contribute to the overall digging linkage
durability.

Even though the basic 6 cylinder, 8.3 liter engine
in the CX330 has been used in Case products since
1985, continual refinement over the years has
changed nearly 85% of the original engine's part
numbers.  The CX330 features 259 net HP with an
air to air intercooler and a free breathing 24 valve
cylinder head. 

The electronic logic that controls the new engine's
fuel system tracks the machine's operating parameters
and keeps the system continually armed to respond
instantly and precisely to the fuel requirements of
each individual cylinder.  The total electronic
design of the engine will also eliminate cable
and step motor controls from the fuel system, with
a large gain in reliability.

Even though modest changes in the CX330s digging
linkage geometry will contribute to the higher
forces of digging, the big guns here are the