MULTILIFT ULTIMA S, Installation Instructions Manual

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Installation
Ultima Hooklift 01/2020
30
4.4 Hydraulic connections ULTIMA FLEX & PRO
Connect the suction hose from oil tank to pump with 2 ½” suction hose. 3” hose is recommend-
ed if pump size is 30 gal/min or larger. Keep the length of the hose as short as possible and
install the oil tank higher than the pump. It is recommended to use a ball valve MU113273501
G2” or MU113273502 G2 ½” under the oil tank.
Connect the pressure line from the pump to the P port (R¾”) of the control valve of the hooklift
with 20 mm high pressure tube. Use also a high pressure hose size 5/8” or 3/4” L=20” in be-
tween as a vibration damper. The high pressure filter is installed between the pump and the
control valve. The pressure filter is obligatory in Flex & Pro hooklifts. The pressure filter can be
installed vertically or horizontally. Change of filter element will be easier with vertical installa-
tion due to less oil drain.
Connect the return line from control valve (R1”) to the return filter and keep the return line as
straight and short as possible to avoid unnecessary warming of oil. The diameter of the tube is
25 mm and the diameter of the hose is 1”.
Install ¼” leakage line hose from control valve leak line port to the oil tank, not to return filter.
In a heavy use (more than 30 platform changes a day), or hot working environment an oil
cooler is recommended. See C-Service, Hiab accessories.
Return line
1” tube
and/or
1” hose
Pressure line
3/4” tube and
5/8” or 3/4” hose as
vibration damper.
Pressure class >30 MPa
Suction
hose 2½”
Pressure
filter
Ball
valve
ULTIMA FLEX & PRO
Leakage line
¼” hose