Daewoo D20S-2, Технические характеристики Системы Эксплуатация Испытания и Регулировка Разборка и Сборка

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Tilt and Sideshift Relief Valve
Check and Adjustment
1. Start the engine and activate the hydraulics until
the hydraulic oil is at the normal operating
temperature. Put the carriage in the full sideshift
position.
2. With the enigne at high idle, hold the sideshift
control lever in the full sideshift position and watch
the gauge. The gauge indication is the pressure
that opens the relief valve.
3. The correct pressure setting is shown in the chart.
4. If an adjustment to the relief valve setting is
necessary, loosen nut (5).
Relief Valve Adjustment
(5) Nut. (6) Setscrew.
5. Turn setscrew (6) clockwise to increase or
counterclockwise to decrease the pressure setting
of the relief valve.
6. Tighten the locknut and check the pressure setting
again for correct adjustment.
Flow Control Valve Adjustment
The tilt and first attachment speeds can be adjusted
at the control valves. They can be adjusted by turning
plug the in the hydraulic control valve body. The lift
speed can not be adjusted. Do the procedure that
follows to change the flow control assembly.
Flow Control Valve Adjustment
(1) Flow control valve adjuster.
1. Remove the nut from the main hydraulic valve tie-
bolt stud.
2. Remove the stud from the valve.
3. Use Hex Wrench (6mm), turn the flow control
adjuster clockwise to increase the flow or
counterclockwise to decrease the flow.
4. Assemble the tie bolt stud in the valve. Torque the
stud to 38.5 - 42.5 N
¥
m (342 - 378 lb
¥
in)
5. Reinstall the nut on the tie bolt and torue
38.5 - 42.5 N
¥
m (342 - 378 lb
¥
in).
24 of 29 New Hydraulic Systems Testing and Adjusting
WARNING
Hydraulic oil, under pressure can remain in the
hydraulic system after the engine and pump have
been stopped. Personal injury can be caused if this
pressure is not released before any work is done on
the hydraulic system. To prevent possible injury,
lower the carriage to the ground, turn the engine off
and move the control levers to make sure all
hydraulic pressure is released before any fitting,
plug, hose or component is loosened, tightened,
removed or adjusted. Always move the lift truck to a
clean and level location away from the travel of
other machines. Be sure that other personnel are
not near the machine when the engine is running
and tests or adjustments are made.
IDCS003C
IDCS016B
Lift Section
1
Remove nut
tie-bolt
stud here
6
5