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 93
Key to diagram:
645 3-stage restrictor
I Valve position, restrictor Ø 1.5 mm
II Valve position, restrictor Ø 0.8 mm
III Valve position, restrictor Ø 1.5 mm
Description of function:
To enable raising and lowering the wrapping table at different speeds, the
respective speed may be preselected using the 3-stage restrictor.
Valve position I In valve position I (operation without bale rotating mechanism), the
wrapping table is lowered and raised via a 1.5 mm orifice plate.
Valve position II In valve position II, raising and lowering of the wrapping table is via a
0.8 mm orifice plate.
This function is necessary in order to keep the bale rotating mechanism
from hitting the wrapping arm gearbox at high speed while swinging to
transport position.
Valve position III In valve position III (operation with bale rotating mechanism), the
wrapping table is raised via a 1.5 mm orifice plate.
Lowering the table is without any orifice plate (via the non-return valve) in
order to obtain a safe transfer of the bale onto the bale rotating
mechanism.