Komatsu 75001, Shop Manual

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SEN03835-00
20-100
4
WA250, 250PZ-6
100 Standard service value table
Standard service value table for chassis
S
te
er
ing
w
h
ee
l
Play
• Engine stopped
• Machine facing straight to front
mm 20 ± 20 Max. 60
Operating effort
• Flat, level, straight, dry, and paved road
• Engine speed: Low idle (Bucket empty)
N {kg}
9.8 ± 2.9
{1.0 ± 0.3}
Max.14.7
{Max. 1.5}
Turns (Not including play)
• Engine speed: High idle
• Left lock – right lock
Turns 3.7 ± 0.4 3.7 ± 0.8
Operating time
Low idle
• Engine started
• Hydraulic oil temperature: Within operat-
ing range
• Left lock – right lock
sec.
3.7 ± 0.4 Max. 4.8
High idle 3.7 ± 0.3 3.7 ± 1
Ac
ce
le
ra
to
r p
e
d
a
l
Operating effort
Beginning of
depression
• Engine started
• Measure at 150 mm from fulcrum of
pedal.
N {kg}
24.5 – 37.8
{2.5 – 3.9}
—
Full open
45.5 – 58.8
{4.6 – 6.0}
—
Operating
angle
Neutral (
α
1)
a
For measuring posture, see Fig. A at end
of this section
• Engine started
•
α = α
1–
α
2
deg.
45 ± 2 —
stroke (
α
) 17 ± 2 —
B
rak
e pe
da
l
Operating effort
• Operating angle: 20°
• Engine speed: Low idle
• Hydraulic oil temperature: Within operat-
ing range
N {kg}
294 ± 30
{30 ± 3.0}
Min. 238
{Min. 24.3}
Operating
angle
Neutral (
α
1)
a For measuring posture, see Fig. B at end
of this section
• Engine speed: Low idle
• Hydraulic oil temperature: Within operat-
ing range
deg.
50 —
Max. (
α
2) 20 (+2/0) —
Play 5 ± 1 —
E
n
gi
ne
s
pe
ed
HST stall
• Engine coolant temperature: Within oper-
ating range
• HST oil temperature: 60 – 80°C
• Hydraulic oil temperature: 45 – 55°C
rpm
2,180 ± 100 2,180 (+115/–200)
Hydraulic stall 2,070 ± 100 2,070 ± 200
HST stall + hydraulic stall 2,040 (+130/–200) 2,040 (+230/–300)
P
ow
e
r t
rai
n (
H
S
T
)
Travel speed
(Bucket empty)
FORWARD
1st
km/h
4 ± 0.2 4 ± 0.3
2nd 13 ± 0.7 13 ± 0.9
3rd 18 ± 0.9 18 ± 1.3
4th 38 ± 1.9 38 (+1.9/–2.7)
Machine model WA250-6
Ca
te
g
o
ry
Item Measurement conditions Unit
Standard value for
new machine
Service limit value