HORSEPOWER
Gross: 42.8 kW
57 HP @ 1950 rpm
Net: 41 kW
55 HP @ 1950 rpm
OPERATING WEIGHT
6945 – 7535 kg
15,315 – 16,615 lb
BUCKET CAPACITY
0.09 – 0.34 m
3
0.12 – 0.45 yd
3
W
ALK-
A
ROUND
COMPACT HYDRAULIC EXCAVATOR
PC78US
-8
3
2
Large TFT LCD Monitor
• Easy-to-see and use 7" large multi-
function color monitor
• Can be displayed in 12 languages
for global support.
TFT : Thin Film Transistor
LCD : Liquid Crystal Display
See page 9.
Large Comfortable Cab
• Low noise design cab
• Sliding convex door facilitates easy
entrance in confined areas.
• Large cab improves working space.
See page 6.
Safety Features
• Cab dedicated to hydraulic excavator
for protecting the operator in the
event of a roll over accident.
• Safety enhancement with large side-
view and rear-view mirrors.
See page 7.
Photo may include optional equipment.
Easy Maintenance
• Side-by-side cooling function enables
only the cooling unit to be attached
and detached.
• Easy access to engine oil filter,
engine main fuel filter and fuel drain
valve
• Equipped with the fuel pre-filter (with
water separator)
• Equipped with the Equipment
Management Monitoring System
(EMMS) monitoring system.
See page 8.
Productivity Features
●
Tight tail swing
• Excellent operation in tight tail
swing radius design
Tail swing radius: 1240 mm
4'1”
●
High mobility
• Large drawbar pull and steering
force are evident when operating
on a slope or other rough terrain.
Max. drawbar pull:
66.9 kN
6820 kgf 15,050 lb
• The machine travel speed
changes automatically to Hi or Lo
at optimal points according to the
travel load.
Ecology and Economy Features
●
Low emission engine
A powerful, turbocharged and air-to-air aftercooled Komatsu SAA4D95LE-5 provides
41 kW
55 HP. This engine is EPA
Interim Tier 4 and EU Stage 3A emissions certified without sacrificing power or machine productivity.
●
Low operation noise
See page 4.
PC78US
-8
C
O M P A C T
H
Y D R A U L I C
E
X C A V A T O R
●
Mode selection
• Five working modes designed to match engine
speed, pump delivery and system pressure.
• Economy mode improves fuel consumption.
• Eco-gauge for energy-saving
operations
• Extended idling caution
for fuel conservation
See page 5.
