Wacker Neuson WL34 - Page 188

4-26 SHB WL34 * 2.0
4 Travel drive
Troubleshooting
Not enough traction force
Check pump A4VG
Check of all operation data OK?
yes
Check of control initiation *
Hydr. motor
Order-specic .... bar
yes
yes
Check: machine
- Speed range OK?
- Tire size OK?
- Oil temperature OK?
no
Variable displacement motor A6VM
Pressure gage on measuring point G
and M1
“R” travel direction valve
connected incorrectly?
Variable displacement pump A4VG
Pressure gage on M
A
or M
B
Perform machine travel against
resistance until ....bar control initiation.
Pressure on G (A6VM) equal to
M
A
or M
B
(A4VG)?
yes
no
- Non-return valves
- Malfunctioning power train
- Adjustment (leakage)
Pressure on M1 half the
pressure on G?
no
Control initiation adjusted
too high.
Re-adjust!
Does engine regulate?
Machine error
Throttle
- Dirty
- Dented
Mechanical damage
Regulation
yes