Wacker Neuson WL34 - Page 187

SHB WL34 * 2.0 4-25
Travel drive 4
Troubleshooting
Severe engine droop
During machine travel without load
- Check of diesel engine
- Check of machine
- Brakes, gearbox, etc.
-Check the return lter
Suction lter -Increased bronze deposits
ok
yes
no
yes
During machine travel with load
Check pump A4VG
Power train damage
Pump A4VG
Pressure gage M
A
/ M
B
Forward and reverse
same pressure value?
yes
Wrong HP valves
Adjustment
(malfunctioning valve, dirty)
Bypass adjustment OK?
Replace valves among
themselves.
Is the error taken over?
no
yes
Check of pump
Adjustment data
Engine check
- Wear
- Leak-oil measurement
- Power train damage
Pressure cuto adjusted
higher than pressure relief
valves?
no
New adjustment