H-3 The Traction Force Is Weak - Komatsu WA250-6 Shop Manual

SEN03849-00

H-3 The traction force is weak

a When the travel speed is slow, carry out troubleshooting for
H-2 first.
No.
Diagnosis
1 The traction force is weak in both forward and reverse
2 The traction force is weak at forward (Reverse is normal)
3 The traction force is weak at reverse (Forward is normal)
The traction force is weak in both forward and reverse, but maxi-
4
mum travel speed is reached the line.
10
40-500
500 Troubleshooting of hydraulic and mechanical system (H-mode)
HST
pump
a
E
Remedy
X
Q
Q
H-3 The traction force is weak
Cause
HST HST
motor 2 motor 1
b c d e f
E E E E E
X X X X X
Q Q Q Q Q
Q
WA250, 250PZ-6
1
Others
g h i j
E E E E
X X X X
A
Q Q Q Q
Q Q