Contractors World UK & Ireland Vol 4 No 4

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New cab design for
305.5E2 and 305E2
models
Caterpillar has introduced a new series to its
compact radius mini hydraulic excavators. The
305E2, 305.5E2 and 308E2 are direct replacement
for existing E series models
The E2 models retain many of the features of
their predecessor, while introducing new technol-
ogy and refinements to the benefit of the custom-
er. For example, the new ‘High Definition Hydrau-
lic’ (HDH) System provides a load sensing and flow
sharing capability enabling greater precision, im-
proved performance and greater controllability.
The 305.5E2 and 305E2 include a redesigned op-
erator station. This update includes a wider open-
ing, a higher quality suspension seat, easy to adjust
arm rests and an overall improved ergonomic lay-
out for operator comfort and productivity.
There is also a new interlocking front window
system, updated opera-
tor interface controls
and 100% pilot controls.
The E2 series mod-
els are equipped with
the digital control pan-
el specially designed
for Cat Mini Excavators which goes under the ac-
ronym COMPASS standing for Complete Operation,
Maintenance, Performance, and Security System.
Built into the monitor are an anti-theft system,
which requires a five-digit alphanumeric password
to start the machine, an automatic engine-idle se-
lection, which drops engine rpm to idle after 4 sec-
onds of inactivity and an adjustable auxiliary-flow
control for work tools.
Both main-line and optional secondary auxiliary-
hydraulic systems can be adjusted on a scale of 1-15
through the monitor for added control.
Retained features include automatic two-speed,
100% pilot controls, excellent bucket rotation, blade
float and safety.
Additionally, the blade float function allows the
operator to drag the blade backwards (away from
the cutting edge side) and the blade will “float”
along the contour of the ground with only the
weight of the blade bearing down to smooth the
site after grading and backfilling holes leading to
ease of operation and productivity.
A three models are ROPS, TOPS and Top Guard
Level 1 certified; include the Cat Interlock (hydrau-
lic lockout) System; a certified accumulator which
allows for auxiliary pressure to be released, making
connecting and disconnecting work tools safer and
easier; and a travel alarm.
•
Upgrade to Cat
E Series Mini
Excavators
SPECIFICATION 305E2 CR 305.5E2 CR 308E2
Engine Model Cat C2.4 Cat C2.4 Cat C3.3B
Rated Net Power, kW 30.0 32.9 48.5
Operating Weight, Canopy, kg 5 020 5 259 N/A
Operating Weight, Cab, kg 5 185 5 423 8 400
Digging Force – Bucket, kN 44.7 50.9 60.2
Dig Depth, mm 3 280 3 470 4 690
Maximum Reach, mm 5 600 5 790 6 990
Page 26 Contractors World UK & Ireland Vol 4 No 4
What’s New - Plant & Equipment