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When brake
Parking
brake inlet
When brake
pressure
Performance
Disc thickness
EPC valve basic pressure
(Orbit-roll basic pressure)
Lift arm RAISE,
EPC valve
FLOAT; Bucket
output pres-
DUMP, TILT, Lift
sure
arm LOWER
Work equipment relief pres-
sure
Unload pressure
LS differential pressure
Lift arm RAISE
Lift arm LOWER
Bucket full stroke
Bucket
tilt back
Moving bucket
from level posi-
tion
*1: Denotes the low idle speed when the engine speed was decreased to the minimum speed with the
RPM idle-up/down selector switch.
WA500-6
Machine model
Measurement conditions
• Torque converter oil tempera-
released
ture: Within operating range
• Engine speed: Low idle (*1)
operated
• Tire inflation pressure: Specified
pressure
• Flat paved road with 1/5 (11° 20')
grade. Dry, paved road surface
• Machine at operating condition
a For measuring posture, see
Figs. D and E at end of this sec-
tion
• Hydraulic oil temperature: Within
operating range
• Engine speed: High idle
• Hydraulic oil temperature: Within
operating range
• Engine speed: High idle
• Control lever operated fully
• Hydraulic oil temperature: Within
operating range
• Engine speed: High idle
• Hydraulic oil temperature: Within
operating range
• Engine speed: High idle
• Work equipment control lever:
Neutral
• Hydraulic oil temperature: Within
operating range
• Engine speed: High idle
• Lift arm lever: at half stroke
• Hydraulic oil tempera-
ture: Within operating
range
• Engine speed: High
idle
• Apply no load
a For measuring posture,
see Figs. F and G at
end of this section
• Hydraulic oil tempera-
ture: Within operating
range
• Engine speed: High
idle
• Apply no load
a For measuring posture,
see Figs.H and J at
end of this section
7
Standard service value table for chassis
Unit
MPa
2
{kg/cm
—
mm
MPa
{kg/cm
2
MPa
2
{kg/cm
P-mode
E-mode
P-mode
E-mode
sec.
P-mode
E-mode
P-mode
E-mode
Standard service value table
WA500-6
Standard value
Service limit
for new machine
value
3.53 ± 0.15
3.53 ± 0.15
{36 ± 1.5}
{36 ± 1.5}
}
Min. 0.14
Min. 0.14
{Min. 1.4}
{Min. 1.4}
Holds in position Holds in position
3.2 ± 0.1
3.72 (+0.2/0)
3.72 (+0.2/–0.2)
{38 (+2/0)}
{38 (+2/–2)}
}
3.72 (+0.2/0)
3.72 (+0.2/–0.2)
{38 (+2/0)}
{38 (+2/–2)}
35.8
35.8 ± 1.47
(+1.47/–0.49)
{365 ± 15}
{365 (+15/–5)}
2.26 ± 0.1
2.26 ± 0.2
{23 ± 1}
{23 ± 2}
}
1.37 ± 0.1
1.37 ± 0.2
{14 ± 1}
{14 ± 2}
7.2 ± 0.5
Max. 8.9
8.1 ± 0.5
Max. 9.7
5.0 ± 0.5
Max. 6.4
5.0 ± 0.5
Max. 6.4
2.5 ± 0.3
Max. 3.4
2.7 ± 0.3
Max. 3.5
1.8 ± 0.3
Max. 2.6
1.9 ± 0.3
Max. 2.7
2.77
20-7
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