Komatsu PC200-8M0 Shop Manual page 487

103 Testing and adjusting, Part 3
Pm Clinic service
* Gauge changing work: Change hoses of gauges [3] and [4].
No. Check item
Fuel
control
dial
8 Servo piston MAX
Checked oil pressure
H (Servo control pressure)
* Gauge changing work: Change gauges [3] and [4] to 60K and change hose conditions of [3], [4],
and [5].
No. Check item
Fuel
control
dial
MIN
PC-EPC (F)
valve
9
PC-EPC (R)
valve
MAX
10 LS-EPC valve
Testing oil pressure
J1
(PC-EPC valve output pressure 1)
J2
(PC-EPC valve output pressure 2)
J3
(PC-EPC valve output pressure 3)
J4
(PC-EPC valve output pressure 4)
J5
(PC-EPC valve output pressure 5)
K1
(LS-EPC valve output pressure 1)
K2
(LS-EPC valve output pressure 2)
K3
(LS-EPC valve output pressure 3)
PC200, 200LC, 220, 220LC-8M0
Condition for check
Work-
Left knob Operation of work
ing
switch equipment
mode
P OFF Arm out relief
Unit Standard value for new machine
—
Condition for check
Work-
Left knob Operation of work
ing
switch equipment
mode
P
E All levers in neutral
L
OFF
B
Travel speed: Lo
travel lever in neutral
Travel speed: Mi
Travel lever oper-
P
ated
Travel speed: Hi
Travel lever oper-
ated
Unit Standard value for new machine
MPa
2
{kg/cm }
[1] [2] [3a]
600K 600K 600K
F pump R pump F pump
main main servo
H1 H1 H2
H1 : H2 = 1 : 0.6
(Oil pressure ratio)
[1] [2] [3b]
600K 600K 60K
F pump R pump F pump
main main (F)
J1
— —
J2
— —
J3
— —
J4
— —
J5
— —
— — —
— — —
— — —
Approx. 2.9 {Approx. 30}
Approx. 0.7 {Approx. 7}
Approx. 0.78 {Approx. 8}
Approx. 1.7 {Approx. 17.5}
Approx. 1.57 {Approx. 16}
Approx. 2.45 {Approx. 25}
Approx. 0.74 {Approx. 7.5}
0 {0}
SEN06129-01
[4a] [5]
600K 60K
R pump
Control
servo
H2
—
Service limit value
[4b] [5a]
60K 60K
R pump
LS-EPC
(R)
J1
—
J2
—
J3
—
J4
—
J5
—
K1
—
K2
—
K3
—
Service limit value
15
30-103