Apach BAKERY Line L 120, Инструкция по эксплуатации и техническому обслуживанию

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93
EN
INSTALLATION, START-UP AND MAINTENANCE OF THE HYDRAULIC UNIT
Connection to the oil-hydraulic equipment must make reference to a complete diagram bearing CETOP symbols, as
agreed with qualified personnel.
The diagram must be given to maintenance personnel, and also positioned on the system where clearly seen, as in the
case of electrical circuits.
1. SYSTEM DIMENSIONING CRITERIA
The materials used in an oil-hydraulic system must be chosen after evaluating the following factors:
PRESSURE
CAPACITY IN L/MIN.
TEMPERATURE
TYPE OF FLUID
PIPING LENGTH
PIPE CROSS-SECTION
TYPE OF PIPING (flexible or rigid)
2. CLEANING OF CONNECTION PIPING
Each pipe (flexible or rigid) used for system installation must be washed with appropriate liquid detergents.
Pipe laying must be secured with anchoring brackets, at a distance of 1.5 m., made of plastic material for low-
pressure piping (drainage and return). Connections must be optimised in order to simplify any later equipment
disassembling operation. Flexible pipes must be assembled so as to avoid cross-sections being too narrow (consult
technical data provided by manufacturers) and fittings becoming twisted.
3. FILLING WITH HYDRAULIC OIL
For the oil-hydraulic system to operate correctly, it is important to choose oil with a high viscosity index and
antifoaming additives. It is particularly advisable to use mineral oil of the H-LP group according to DIN 51524.
Characteristics vary depending on the type of motor, pump, valves and working temperature. The types of oil used
in most cases are shown in the following Table 2a.
BEND B
Specification
as per DIN 51524
Part 2
– June
H
– LP 46
Viscosity
At 50° C
24 - 28
AGIP
IP
BP
CASTROL
ESSO
MOBIL
SHELL
CHEVRON
OSO 46
HYDRUS 46
HYSPIN
– AWS 46
NUTO H 46
DTE 46
TELLUS 46
EP HYDRAULIC OIL
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