Komatsu Galeo PC800-8, Shop Manual

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