DINGLI BA14J-AWD, Operation And Maintenance Manual

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Operation & Maintenance Manual Section7-General Maintenance
Dingli Machinery
7-5
6) Change the Charge filter element(refer to Replace the Charge Filter Element)
7) Install the plug on the drain port.
8) Fill the tank with hydraulic oil use a 10um filter until the fluid is thin the top 2 inches of
the sight gauge. Not overfill.
9) Disconnect the Port P4 on the Main manifold, block it use a M16*1.5 Plug, and take a
suitable container under the port of the hose,
10) Start the engine in the Ground Control Station, put the toggle switch forward to raise the
main upper boom, take the hose and lead the oil from the cylinder non-rid chamber into
the container.
11) Stop the engine and reconnect the hose to the P4 port.
12) Disconnect the Port P13 on the Main manifold, block it use a M16*1.5 Plug, and take a
suitable container under the port of the hose,
13) Start the engine in the Ground Control Station, put the Up toggle switch to raise the
Lower and Mid Boom, take the hose and let the oil from the cylinder non-rid chamber
into the container.
14) Stop the engine and reconnect the hose to the P13 port.
15) Pull up the red re-level knob on the synchronizing valve located beside the main control
valve manifold assembly, then turn 90 degrees to position the synchronizing valve
keeping close.
16) Find the hose connected to the Port T on the synchronizing valve, and disconnect the end
fitting which is located on the hydraulic reservoir, and block the port in the reservoir.
Then take a suitable container under the hose to accept the oil.
17) Start the engine in the Ground Control Station, put the toggle switch lever forward to
raise the Lower Boom, take the hose and let the oil from the cylinder non-rid chamber
into the container.
18) Stop the engine and reconnect the hose to the P13 port
19) Disconnect the Port P15 on the Main manifold, block the port use a M16*1.5 Plug, and
take a suitable container under the port of the hose,
20) Start the engine in the Ground Control Station, put the toggle switch forward to extend
the main upper telescopic boom , take the hose to lead the oil from the cylinder non-rid
chamber into the container.
21) Stop the engine and reconnect the hose to the P15 port.
7.4.4 Replace the Hydraulic Filters
Replacement of the hydraulic filters is essential for good machine performance and service
life. A dirty or clogged filter may cause the machine to perform poorly and continued used
may cause component damage. Extremely dirty conditions may require that the filter be
replaced more often.
Replace the Charge Filter Procedure:
1) Clean the area around the oil filter, then remove the filter assembly cover use a 3mm
wrench
2) pull out the filter element from the filter assembly chamber,
3) Install the new filter element to the filter assembly chamber.
4) Install the filter assembly cover and tighten it. Clean up any oil that may have spilled