Jungheinrich DFG 660 Operating Instructions Manual page 133

9.3.2 Emergency lowering
Z
The mast can be lowered manually if a fault occurs in the hydraulic system.
WARNING!
Lowering the mast can result in injuries
Instruct other people to move out of the hazardous area of the truck during
emergency lowering.
Never stand underneath a raised load handler.
Only operate the emergency lowering valve when standing next to the truck.
Emergency lowering of the mast cannot be applied when the load handler is in the
rack.
Report any defects immediately to your supervisor.
Tag out and decommission a faulty lift truck.
Only return the truck to service when you have identified and rectified the fault.
Procedure
• Turn key switch to "0".
• Loosen the red cap (187) on the solenoid
valve on the valve block somewhat.
• Carefully loosen the nut (185) on the
emergency lowering valve (186).
• The mast lowers slowly.
• Control the lowering speed with the nut
(185).
• When the mast and the load handler have
been lowered, torque the nut (185) to 2.5 -
3.0 Nm. Tighten the red cap (187) finger
tight again.
WARNING!
Only return the truck to service when you
have identified and rectified the fault.
134
186
185
187