Lukas Concrete crushers - Manual (Page 18)

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6.1 Preparatory measures
6. Operation
6.1.1 Initial start-up
Before commissioning and following repairs, the equipment must be de-aerated.
- Connect the equipment to the hydraulic pump (see chapter “Connecting the
equipment”).
- Open / close the crusher arms of the equipment without any load at least twice (see
chapter “Operation of the star grip”).
NOTE:
We recommend that during de-aeration, the attached unit for the hydraulic
supply should stand at a higher level than the body of the recycling unit.
Recommended procedure for de-aerating the recycling unit:
1.) open and close fully with the blade arms facing upwards.
2.) open and close fully with the blade arms facing downwards
3.) open and close fully with the blade arms facing upwards.
4.) open and close fully with the blade arms facing downwards
6.1.2 Inspection of the pump unit
See the separate operating instructions for the relevant unit (or the handpump).
NOTE:
Before each start-up of the hydraulic unit you have to make sure that the
actuating valves are set to depressurized circulation.
Before coupling the quick-disconnect couplings, the actuating valves of the
hydraulic unit are set to depressurized circulation.
6.2 Operating the star grip
Open device ( ):
Turn the star grip in a clockwise direction (in the direction of the
relevant symbol) and keep in this position.
Close device ( ):
Turn the star grip in an counterclockwise direction (in the
direction of the relevant symbol) and keep in this position.
“Dead-man’s” function:
Following release, the star grip automatically returns to the
central position, fully guaranteeing load-retention.