Komatsu PC500LC-10R Shop Manual page 602

Pm CLINIC SERVICE
Item
Hydraulic oil tem-
•
perature: 45 to
55 °C
Working mode: P
•
(Power Mode)
Travel speed: Hi
•
LS differen-
Travel operation:
•
tial pressure
One-side track
(*1)
idle off the ground
at lever half
LS differential
•
pressure = Pump
discharge pres-
sure - LS pressure
Hydraulic oil tem-
•
perature: 45 to
55 °C
Fuel control dial:
•
MAX (High idle)
PC valve
position
outlet pres-
Working mode: P
•
sure (servo
(Power Mode)
piston inlet
• Swing lock switch:
pressure)
ON
Work equipment:
•
Relieve the oil
pressure in arm IN
circuit
• Hydraulic oil tem-
perature: 45 to
55 °C
PC-EPC
valve outlet
Working mode: P
•
pressure
(Power Mode)
(Front
All control levers
•
pump)
and control pedals
in NEUTRAL posi-
tion
30-196
Machine model
Engine
Testing conditions
Running
L.H. track
idle off the
ground
(Front
pump)
Running
R.H. track
idle off the
ground
(Rear
pump)
Front pump
discharged
pressure
Servo pis-
ton inlet
pressure
Rear pump
discharged
pressure
Servo pis-
ton inlet
pressure
Fuel control
dial: MIN
(Low idle)
position
Fuel control
dial: MAX
(High idle)
position
PC500LC-10R
SAA6D125E-5
Standard val-
Unit ue for new
machine
2.55 to 2.75
{26 to 28}
MPa
2
{ kg/cm }
2.55 to 2.75
{26 to 28}
36.12 to
38.77
{368 to 395}
Above value
x approx. 0.6
MPa
36.12 to
2
{ kg/cm }
38.77
{368 to 395}
Above value
x approx. 0.6
Approx. 2.09
{Approx.
21.3}
(Reference
MPa
value)
2
{ kg/cm }
Approx. 0.98
{Approx. 10}
(Reference
value)
30 TESTING AND ADJUSTING
Meas-
Repair limit ured val-
ue
2.55 to 2.75
{26 to 28}
2.55 to 2.75
{26 to 28}
35.6 to 39.2
{363 to 400}
Above value
x approx. 0.6
35.6 to 39.2
{363 to 400}
Above value
x approx. 0.6
Approx. 2.09
{Approx.
21.3}
(Reference
value)
Approx. 0.98
{Approx. 10}
(Reference
value)
PC500LC-10R
No
Goo
goo
d
d