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AS0808 / AS0808E / AS0812 / AS0812E / AS1012 / AS1012E / AS1212 / AS1212E / AS1413
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Chapter 11 - Maintenance
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Measure the distance from the outer section of the steel pipe on the side of the oil tank to the plane of the oil tank
base panel. Result: the measured value is greater than or equal to 24 mm. Perform step 3. Result: if
the measured value is less than 24 mm, replace the wear-resistant sliding block.
• Apply lubricant between the chassis sliding rail and the wear-resistant sliding block.
12.13 Steps of checklist E
E-1 Test and change of hydraulic oil
1) This procedure must be carried out every 2000 hours or every two years, whichever comes rst.
2) Replacing or testing hydraulic oil is essential for good equipment performance and service life.
The contaminated hydraulic oil and the lter can affect the performance of the machine, which can damage
the parts with continuous use. The frequency control is especially necessary in case of poor operating
conditions.
3) Check whether it is necessary to replace the hydraulic oil with an oil separator beforehand.
4) If the hydraulic oil has not been changed for two years, check once every quarter.
If the inspection fails, change the hydraulic oil.
Notice: This operation must be carried out when the machine is retracted.
• Disconnect the battery from the machine.
Warning: electric shock/risk of burns
• Operating a live electrical circuit may result in serious injury or even death.
Remove all rings, watches and other personal jewellery during the operating process.
• Open the installation drawer of the hydraulic power supply.
• Mark and disconnect the oil return line from the hydraulic lter to the hydraulic oil tank.
Remove the oil line from the oil tank. Cover the pipe coupling to keep the dust away.
• Remove and disconnect the hydraulic pump and the oil suction line from the oil tank.
Cover the pipe coupling to keep the dust away.
• Unlock the fastener of the hydraulic oil tank and remove the hydraulic oil tank.
• Unscrew the cap from the hydraulic oil tank and pour the oil into a suitable container.
Warning: risk of personal injury
The ejected hydraulic oil can be injected into the skin. Loosen the hydraulic coupling
slowly to gradually reduce the oil pressure. Do not eject the oil.
• Clean the overowed hydraulic oil and use the drained hydraulic oil correctly.
• Clean the hydraulic oil tank with a mild solvent and dry it with air.
5) Install the hydraulic oil tank and tighten the fastener on the hydraulic oil tank.
The torque shall meet the requirements below:
Couple
Fastener lubrication-free hydraulic oil tank 25±2N
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