LS tractor 30139708, Руководство оператора

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SERVICE MANUAL(VALVE)
General recommendations
Hydraulic recommendations
Warning
Only highly qualified personnel must use the directional control valve. The high power creates
inside the hydraulic circuit can cause damage to things an injury to people.
Warning
Always wear adequate protective clothing, goggles, and use equipment suitable for preventing
accidents, especially regarding hydraulic fluids.
Warning Always handle the valve using equipment that can guarantee the safety of personnel and that
can prevent damage to the valve.
Warning
Before installing, carrying out maintenance, or replacing the hydraulic circuit, makes sure that
the system or vehicle is off and the pressure in the system has been released.
Warning
Place all the actuators on standby (on the ground, at the lowest point, etc.), discharge all the
accumulators and secure loads whose accidental movement could cause damage or generate
pressure.
Warning
Do not touch the valve during operation. Its high temperature could cause very serious burns.
Hydraulic fluid
The oil in the hydraulic circuit has the dual function of lubricating and transmitting power. This is a vital
factor in a hydraulic system and must be select through the assistance of a qualified supplier choosing
the correct oil ensures long-lasting satisfactory operation of the system’s components, especially the valve.
The oil chosen for the operation of this hydraulic component is of course suitable for use with the pump,
motor and single-acting and double-acting hydraulic cylinders.
Caution
Water and hydraulic fluid must not be mixed; water is considered a contaminating chemical
agent.
Cleaning and filtration
■
To ensure proper operation of the components, keep the hydraulic fluid at a filtration of 18/15
-- ISO4406 or better.
■
Every time the oil is changed, filter the new fluid to prevent further contamination.
■ Use continuous filtration on the circuit to eliminate dirt and products that corrode and wear,
generate during system operation.
■
Replace the fluid at regular intervals and remove waste from the circuit according to the
operating
conditions.
■
Protect the circuit against pollutants transported by air by sealing the system and/or carrying
out
filtration of the breather valve.
■
Before starting a new machine, clean (Wash) the entire hydraulic system to make sure that paint
residues, metal shavings, welding residues, etc., have been removed.