Komatsu PC500LC-10R Shop Manual page 401

20 STANDARD VALUE TABLE
Pump performance
Item
•
•
Combined oper-
ation perform-
•
ance
•
(Travel deviation
•
at simultaneous
operation of work
equipment +
travel)
•
•
•
•
PC flow control
•
characteristics
(Time required
•
for boom RAISE
+ swing start at
90 °.)
•
•
•
•
•
Main pump per-
formance
•
•
PC500LC-10R
Machine model
Engine
Measurement condition
Hydraulic oil temperature: 45 to
55 °C
Fuel control dial: MAX (High idle)
position
Working mode: P (Power Mode)
Travel speed: Lo
Travel deviation (x) in travel of 20m
after running up 10m on a firm and
level ground
Measuring posture: See "Machine
posture and procedure for measur-
ing performance", "Fig. 5" and "Fig.
6".
Hydraulic oil temperature: 45 to
55 °C
Fuel control dial: MAX (High idle)
position
Working mode: P (Power Mode)
Bucket soil/sand heap (1:1 slope) or
3
rated load (2.5 m : 3960 kg)
Arm in vertical position and bucket
back grounding on firm and level
ground
Time required for boom RAISE +
swing start to pass 90 ° point after
starting swing
Measuring posture: See "Machine
posture and procedure for measur-
ing performance", "Fig. 15".
Pump speed ( rpm)1720 rpm
PC-EPC current value ( mA)570 mA
Test pump discharged pressure
2
( MPa { kg/cm } ): P1
Other pump discharged pressure
2
( MPa { kg/cm } ): P2
Average pump discharged pressure
2
( MPa { kg/cm } ): Pp=(P1+P2)/2
STANDARD VALUE TABLE FOR MACHINE: PC500LC-10R
Standard value for
Unit
mm
sec
(Reference value)
ℓ/min
PC500LC-10R
SAA6D125E-5
Repair limit
new machine
400 or less 440 or less
4.5±0.5
(Reference value)
Q
(See the graph) (See the graph)
4.5±0.5
Q
20-25