Komatsu ecot3 PC300LC-8 Shop Manual page 334

SEN02624-03
Cate-
Item
gory
Boom
Arm
Bucket
Cylinders
Center swivel
joint
Swerving amount in
simultaneous opera-
tion of work equip-
ment and travel
Discharge amount of
—
hydraulic pump
8
Applicable model
Measurement condition
• Hydraulic oil temperature: Within
operating range
• Engine at low idle
• Working mode: P mode
• Time required from raise stroke end
till bucket touches ground and
pushes up machine front
• For measuring posture, see Work
equipment 5
• Hydraulic oil temperature: Within
operating range
• Engine at low idle
• Working mode: P mode
• Time required from dumping stroke
end till bucket stops momentarily
after control lever is tilted to digging
and starts to move again
• For measuring posture, see Work
equipment 6
• Hydraulic oil temperature: Within
operating range
• Engine at low idle
• Working mode: P mode
• Time required from dumping stroke
end till bucket stops momentarily
after control lever is tilted to digging
and starts to move again
• For measuring posture, see Work
equipment 7
• Hydraulic oil temperature: Within
operating range
• Engine at high idle
• Working mode: P mode
• Leakage amount for one minute
with cylinder or travel to be
measured in relief condition
• Hydraulic oil temperature: Within
operating range
• Engine at high idle
• Working mode: P mode
• Traveling speed: Lo
• On hard and flat ground, make
approach run of 10 m and then
measure deviation (X) in the travel
of 20 m
• For measuring posture, see Travel
2 and 3
See performance of hydraulic pump
(next page)
20 Standard value table
PC300, 300LC-8
PC350, 350LC-8
Standard value for
Unit
new machine
sec. Max. 3.0
PC300: Max. 3.0
sec.
PC350: Max. 4.0
sec. Max. 3.0
4.5
cc/min
10
mm Max. 400
See performance of hydraulic pump
l/min
(next page)
Judgement
criteria
Max. 3.6
PC300: Max. 3.6
PC350: Max. 4.6
Max. 5.0
20
50
Max. 440
PC300, 350-8