6-6
6.5 Adjustment of the backlash between the Gearbox and the Arm rail.
The backlash appears after the machine has been used for a period of time. It is necessary to
adjust the tightness between the Arm rail and crankshaft bearing.
a. Remove the side plate as the above figure 1.
b. Release the bolts as the above figure 2. Using socket wrench, insert it into the holes as
shown in the above fi
ure 3 and rotate them. Appl
the ti
htness as the hand wheel of the
Gearbox can be turned easily but not too easily. Apply the same to the counter side.
c. Release the bolts as shown in the right figure 4.
d. Usin
socket wrench, insert it into the holes as shown in the above fi
ure 5 and rotate
them. Appl
the ti
htness as the hand wheel of the Gearbox can be turned easil
but not
too easily. Apply the same to the counter side.
e. Screw up the side plate of the above figure 1.
6.6Adjustment of the hydraulic pressure.
Parts Name
1. Hydraulic motor
2. Oil pressure gauge
3. Solenoid valve
4. Oil tank
5. Pressure adjusting valve
6. Oil gauge
7. Oil inlet
8. Forcible switch of the solenoid valve.
a. Please check that whether the hydraulic oil is sufficient?
b. Power on.
c. There is no pressure under the normal condition. If adjustment needed, please insert a
small screwdriver into the forcible switch of the solenoid valve, as shown in figure 8, to do
the adjustment.
d. Rotate the pressure adjusting valve, as shown in the figure 5, (clockwise to high and
counter clockwise to low pressure) The default pressure is 38bar(kg/cm
2
)。
e. Take out the screwdriver.
Precaution
When adjusting the hydraulic pressure, please keep pressing the forcible switch of the
solenoid valve continuously, as shown in the figure 8.
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