TOX PRESSOTECHNIK Powerpackage Q Series, Original Operating Instructions, Page: 53 / 80

Troubleshooting
TOX_Manual_Powerpackage_line-Q_en
53
Fault Possible cause Measure
Piston rod does not retract. Tool jams.
Guiding columns are jammed. Mechanically decouple the Powerpack-
age and check ease of movement by
extending and retracting.
Air pressure too low (only for assembly
direction from the bottom to the top). Check air pressure and increase if nec-
essary.
Main control valve does not switch. Check main control valve.
Contact authorized service personnel.
Unlockable check valves (optional
equipment) do not open. Check non-return valves.
Contact authorized service personnel.
Pneumatic hose is faulty. Check the compressed air supply.
Contact authorized service personnel.
Tool is too heavy for return stroke
force. Increase return stroke pressure.
Use additional return stroke cylinders.
Changeover signal for return stroke is
not present. Check electrical switching signal (e.g.
for ZHU, ZHW, ZDO).
Contact authorized service personnel.
Power stroke valve is faulty. Contact authorized service personnel.
Pneumatic spring pressure regulator or
pressure gauge pneumatic spring is
faulty. Check the compressed air pressure on
the pressure gauge.
Contact authorized service personnel.
Frequent refilling of hydraulic
oil is necessary. Speed ratio of fast approach stroke to
return stroke is set incorrectly. Setting speed ratio of return stroke to
fast approach stroke, Page 46
.
Contact authorized service personnel.
Speed ratio of power stroke and power
stroke venting is set incorrectly. Set the speed ratio between power
stroke and power stroke venting (op-
tional), Page 46
.
Contact authorized service personnel.
Pneumatic supply insufficient. Cross-
section of hose, size of connectors,
switching valves, maintenance unit are
too small. Observe predefined connections sizes
and cross-sections.
See Datasheet.
Powerpackage is not fully vented. Refilling oil and venting drive, Page
61
.
Oil level after oil filling is not lowered. Lowering of oil level, Page 64 .
The HP measuring connection, vent
screw or oil filling nipple is leaky or
faulty. Contact authorized service personnel.
Seals are damaged. Contact authorized service personnel.