Komatsu Galeo PC800-8 Shop Manual page 314

SEN00784-02
Cate-
Item
gory
Boom control lever
Arm control lever
Bucket control lever
Swing control lever
Travel control lever,
pedal
Boom relief pressure
Arm relief pressure
Bucket relief pressure
Swing relief pressure
Travel relief pressure
Control pressure
Pump EPC solenoid
valve output
pressure
4
Applicable model
Measurement conditions
• Hydraulic oil temperature:
45 – 55°C
• Engine at high idle
• Center of lever knob
• Measure max. value to end of
travel
Lever
Pedal
Normal
At heavy lift
• Hydraulic oil
Normal
temperature:
45 – 55°C
At machine
• Engine at high
push-up
idle
• Working
mode: P
• Pump outlet
pressure
when mea-
Curl
sured circuit is
relieved
• Relieve either
Dump
travel circuit.
• Hydraulic oil temperature:
45 – 55°C
• Engine at high idle
• Hydraulic oil All control
temperature: levers at
45 – 55°C neutral
• Engine at high
idle
Boom RAISE
• Working
relief (Normal)
mode: P
PC800, SE, LC-8
PC850, SE-8
Standard value for
Unit
new machine
15.7 ± 4.9
{1.6 ± 0.5}
15.7 ± 4.9
{1.6 ± 0.5}
12.7 ± 3.9
{1.3 ± 0.4}
N {kg}
12.7 ± 3.9
{1.3 ± 0.4}
24.5 ± 5.9
{2.5 ± 0.6}
74.5 ± 18.6
{7.6 ± 1.9}
32.4 ± 1.0
{330 ± 10}
33.8 ± 1.0
{345 ± 10}
18.6 ± 1.9
{190 ± 20}
31.4 ± 1.0
{320 ± 10}
31.4 ± 1.0
{320 ± 10}
31.4 ± 1.0
{320 ± 10}
MPa
32.4 ± 1.0
{kg/cm }
2
{330 ± 10}
+2.5
28.9
–0.5
+25
{295 }
–25
34.8 ± 1.0
{355 ± 10}
+0.49
3.24
–0
+5
{33 }
0
Max. 0.78
{Max. 8}
Min. 1.23
{Min. 12.5}
20 Standard value table
Service limit value
15.7 ± 4.9
{1.6 ± 0.5}
15.7 ± 4.9
{1.6 ± 0.5}
12.7 ± 3.9
{1.3 ± 0.4}
12.7 ± 3.9
{1.3 ± 0.4}
Max. 39.2
{Max. 4.0}
Max. 107.6
{Max. 11}
+1.0
32.4
–2.0
+10
{330 }
–20
+1.0
33.8
–2.0
+10
{345 }
–20
18.6 ± 1.9
{190 ± 20}
+1.0
31.4
–2.0
+10
{320 }
–20
+1.0
31.4
–2.0
+10
{320 }
–20
+1.0
31.4
–2.0
+10
{320 }
–20
+1.0
32.4
–2.0
+10
{330 }
–20
+2.5
28.9
–0.5
+25
{295 }
–25
+1.0
34.8
–2.0
+10
{355 }
–20
+0.49
3.24
–0.20
+5
{33 }
–2
Max. 0.78
{Max. 8}
Min. 1.23
{Min. 12.5}
PC800, 850-8