User Manual
Table Of Contents
- Technical Systems Hydraulic System UNIWRAP
- Contents
- 1 Hydraulic circuit diagram
- 1.1 Hydraulic circuit diagram up to serial no.: 72600130
- 1.2 Hydraulic circuit diagram from machine no.: 72600131, with tipping cradle service shut-off valve (631)
- 1.3 Hydraulic circuit diagram from machine no.: 72600531, with film clamping cutters flow divider (769)
- 1.4 Hydraulic circuit diagram from serial no.: 72601047, with valve combination (630, 706, 769), without 3-stage restrictor (645)
- 1.5 Hydraulic circuit diagram from serial no.: 72601047, with valve combination (630, 706, 769), with 3-stage restrictor (645)
- 2 Pre-conditions for use
- 3 Valve block
- 4 Individual components
- 4.1 Input pressure balance (763)
- 4.2 Circulation shut-off valve (Y77-2)
- 4.3 Wrapping arm control unit (Y133)
- 4.4 Tipping cradle control unit (Y135 / Y136)
- 4.5 Wrapping table control unit (Y137 / Y138)
- 4.6 Clamping cutters control unit (Y139 / Y140)
- 4.7 Flow controller (630)
- 4.8 Pressure relief valve (706)
- 4.9 Wrapping arm motor (234)
- 4.10 Wrapping table motor (235)
- 4.11 Tipping cradle service shut-off valve (631)
- 4.12 Film clamping cutters hydraulic cylinder (374)
- 4.13 Film clamping cutters flow divider (769)
- 4.14 Wrapping arm motor valve block (4)
- 4.15 3-stage restrictor
- 4.16 Valve combination (7)
- 4.17 Manifold (8)
- 0293 522.0
TIC UNIWRAP Hydraulic System
11/04 UNI-h-Kap4 67
Key to diagram:
P Channel pump
Volume flow input.
T Return line (tank)
A Port
to the rod space of the right hydraulic cylinder.
B Port
to the ram space of the left hydraulic cylinder.
1 Ball
It is opened by the magnetic tappet (2).
When not energized, it closes port P.
2 Magnetic tappet
It is pushed down by the solenoid valve (Y139, Y140) and
opens ball (1).
7 Ram
Opens the non-return valve (734-1) or (734-2)
734-1 Lock-up valve unit non-return valve
This seals off port A and is opened by ram (4).
734-2 Lock-up valve unit non-return valve
This seals off port B and is opened by ram (4).
Y139 Open film cutters solenoid valve
is controlled by the UNIWRAP electronic module, actuates the
magnetic tappet (2) and thus opens the ball (1) = connection
from P to A.
Y140 Close film cutters solenoid valve
is controlled by the UNIWRAP electronic module, actuates the
magnetic tappet (2) and thus opens the ball (1) = connection
from P to B.