112
HYDRAULIC SYSTEM
F_02_H11 F_02_H12 F_02_H13
CONTROL OF SINGLE-ACTING HYD-
RAULIC CYLINDER
Single-acting hydraulic cylinder is ever
connected with quick-coupler No "1":
lifting lever is in position "a"
(pressure in quick-
coupler No "1”)
lifting finished lever is moved to po-
sition "b" - neutral
lowering lever is moved to po-
sition "c" - floating
Lowering fin-
ished
lever is moved to po-
sition "b" – neutral
Note: Picture F_02_H11 shows location
of quick-couplers in basic configuration.
CONTROL OF DOUBLE-ACTING
HYDRAULIC CYLINDER
Double-acting hydraulic cylinder is con-
nected with quick-coupler No "1" and
No "2“:
Movement in
one direction
(lever in position "a" –
pressure in quick-
coupler "1")
Movement fin-
ished
(lever in position "b" –
neutral)
Movement in
opposite direc-
tion
(lever in position "d" -
pressure in quick-
coupler "2")
Movement fin-
ished
(lever in position "b" -
neutral)
Note: Picture F_02_H12 shows location
of quick-couplers in basic configuration.
CONTROL OF DOUBLE-ACTING
HYDRAULIC CYLINDER
Outer circuit control lever must
be moved as quickly as possible
over position „c" (floating po-
sition) when working with double-
acting hydraulic cylinder). Be-
cause both sides of cylinder are
connected with the return line
and so the uncontrolled move-
ment of piston rod can start.
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