Wacker Neuson WL34 - Page 185

SHB WL34 * 2.0 4-23
Travel drive 4
Troubleshooting
Machine travel starts too early
Does machine perform travel at idling speed,
forward-reverse control in neutral?
Does machine perform travel at idling speed,
forward-reverse control switched?
Idling speed driving motor according
to machine travel data ... rpm
Starting speed
Check pump A4VG
Rated value * rpm
PHP = 50 bar
PSt (setting pressure) = * bar
High-pressure manometer M
A
/ M
B
Put machine against resistance
Increase diesel engine speed
until 50 bar high pressure is indicated,
compare with diesel engine speed .. *. rpm
* order-specic
Re-adjustment at control initiation
screw A4VG
Observe the oil temperature!
Observe the safety regulations!
Mechanical zero position of pump
- Misadjusted
- Malfunction
Adjust or replace pump
Diesel engine
Adjusting engine speed
Adjustment OK
Machine error
ok
ok
no
ok
Measuring point M
A
/ M
B
P
St
no
ok
no
ok
no