Vetus HL12500A Einbauanleitung Seite 13

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Open air bleed nipple 'A'. Move the piston rod until the pis-
ton is against end cap 'A'. Switch the EHP motor on using the
switch. When the oil flowing from air bleed nipple 'A' no
longer contains air bubbles, switch off the EHP motor.
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Close air bleed nipple 'A' and switch the EHP motor on
again. Continuously top up the buffer tank while the piston is
moved by the EHP to end cap 'B'.
Now connect the red wire from the electric motor to the pos-
itive (+) pole on the battery via a switch, and the black wire
to the minus (-) pole on the battery.
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Open air bleed nipple 'B'.
Switch the EHP motor on using the switch. When the oil flow-
ing from air bleed nipple 'B' no longer contains air bubbles,
switch of the EHP motor and close air bleed nipple 'B'.
Now top-up the buffer tank to the correct level.
Disconnect the temporary connections from the battery to
the EHP and reconnect to the control device or the selector
switch with the EHP motor relay and check that the piston
rod moves in the right direction; reverse the red and black
wiring connections if the piston rod's direction of movement
is incorrect.
General
The oil level should be checked several times during the first
days after filling. If necessary, top-up the oil level.
The oil level may drop initially as fine air bubbles escape from
the oil.
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Electro-hydraulic lifting system
5 Use
When the switch on the control panel is pressed, the cylinder
will move in or out and the object to be lifted (hatch, for exam-
ple) will be moved (opened/closed).
If no limit switches are fitted, the switch should be released
immediately after the cylinder has moved fully in or out. This will
prevent the EHP overheating.
6 Maintenance
• Check the EHP oil level regularly. When the installation
includes an extra oil expansion tank, the level should be
halfway up this tank.
• Inspect the piston rod regularly for dirt, and clean as neces-
sary; this will prevent damage to the oil seal ring.
• Drain and change the hydraulic oil once every 2 years, or
after every 200 operating hours.
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ENGLISH
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6.0901
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