Lukas AHP 2-1E-632 - Manual (Page 17)

17 COD. 193555075 - v.2 - UPD 220207
6.2 - Using the controls
The pump can be connected to a 3/2 or 4/2 directional control valve with a CETOP 03 connection.
For instructions on connecting the CETOP valve correctly, refer to the documentation supplied with the valve itself.
WARNING: immediately after the pump installation, the circuit may contain air locks that prevent pressurization. If the pump
is unable to pressurize the oil circuit, proceed as described below.
If the pump is mounted vertically, disassemble it and place it in a horizontal position on the floor.
Priming the pump with 3/2 directional control valve
l Press the pump treadle and position the valve on releasing position for about 15 seconds.
l Connect to a cylinder and check that the pump is primed. If the cylinder does not move, repeat the operation.
Priming the pump with 4/2 directional control valve
l Using a suitable pressure hose, connect the pressurized oil delivery port to the drain side and press the treadle for about 15
seconds.
l Connect to a cylinder and check that the pump is primed. Repeat the operation if the cylinder does not move.
7 - MAINTEN 7 - MAINTEN 7 - MAINTEN 7 - MAINTEN 7 - MAINTENANCE ANCE ANCE ANCE ANCE
The routine maintenance work described below must be performed exclusively by a skilled technician who has a thorough knowledge
of the pump and its operation and who has read this manual completely. Maintenance must be carried out with maximum caution to
prevent possible accidents. This chapter describes the only maintenance procedures permitted. Execution of any unauthorised
maintenance work will automatically invalidate the warranty and free the manufacturer from all liability.
7.1 - Connections checking
Check the hydraulic and pneumatic connections once a week. Ensure that the couplings on the pump are screwed down tightly and
show no signs of breakage, cracks or other damage. Ensure that the hoses are not damaged in any way (cuts, abrasion, cracks, etc.).
7.2 - Cleaning the air filter
There is an air filter inside the air inlet connection (fig.8, page 3).
l Use a slotted tip screwdriver of the appropriate size to unscrew the filter from the air inlet connection until it is extracted.
l Clean the filter with compressed air and then refit and screw it into position. Do not over-tighten the filter or damage may ensue.
l Reconnect the air line quick coupler after binding the thread with Teflon tape.
If the air filter is excessively contaminated or damaged, it must be renewed. Order a new filter from the manufacturer, referring to the
list of spare parts at the end of this manual.
7.3 - Checking the hydraulic oil.
Periodically check that the pump contains the correct quantity of hydraulic oil by checking the level on the sight glass (fig.9, page 3).
If the oil level, with cylinder closed, is below minimum (E, fig.9), refill using the reccomended types of oil on page 15.
7.4 - Hydraulic oil change
Change the oil at intervals of 250 duty hours. This operation must be performed when the cylinder is fully retracted:
l If the pump is mounted vertically, disassemble it and position it horizontally.
l Use a slotted tip screwdriver to remove the filler plug (fig.10, page 13).
l Empty the pump of oil by turning it upside down over a suitable container.
l Allow all the oil to flow into the container and then fill the pump with the quantity and type of new oil specified on page 15.
l Clean the filler opening with a clean cloth and refit the plug, pressing it fully down or, if necessary, to the partially inserted breather
position.