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2. Remove water and dirt from the
hydraulic oil tank
Drain the water and dirt from the hydraulic
oil tank every 250 hours.
1) After stopping the machine until the oil
temperature drops or before starting work
every day, discharge the air from the oil
tank.
2) Slowly loosen the drain valve or the
drain plug at the bottom of the fuel tank (as
shown in the figure).
3) Drain water or dirt until the clear and
clear hydraulic oil is discharged. Close the
drain valve again or tighten the screw plug.
4) Fill oil if the oil in the oil tank is
insufficient.
3 Replace the hydraulic oil, clean the oil suction screen.
The first replacement shall be carried out after 2000 hours working for a new machine, and
thereafter it shall be done every 2000 hours.
Warning: 1) To avoid burns, oil draining should be carried out only when the
hydraulic oil has cooled down or before daily work.
2) In order to prevent oil from spraying out, it is necessary to slowly
rotate the cover to release internal pressure when removing the fuel filler
flange cover.
3) When changing the oil, make sure no water, dirt, mud, etc. enter the
oil tank.
Oil change procedures:
1) Park the excavator on level ground.
2) Slowly loosen the air filter on the upper
filler flange assembly of the fuel tank to
reduce the air pressure stored in the fuel
tank.
3) Remove the cover under the air filter.
4) Pump the hydraulic oil with the oil pump
and put it into the empty oil barrel.
5) Loosen the drain valve or the drain plug
at the bottom of the tank to completely
drain the remaining oil.
6) Lower the oil suction filter.
7) Clean the inside of the oil tank
thoroughly.
8) Clean the drain plug and reinstall it.
9) Clean the oil suction filter.
10) Add the hydraulic oil that meets the
requirements (see the oil selection table),
and the new oil shall be added to the oil
Oil
dipstick
Oil drain
plug
Air filter
Cover
O-ring
Spring
Oil suction
filter
Cover
O-ring
Spring
Bypass
valve
Oil return
filter
Summary of Contents for U35
Page 5: ...1 1 1 Preface...
Page 15: ...2 1 2 Safety regulations...
Page 45: ...3 1 3 Introduction of components...
Page 70: ...4 1 4 Operation guide...
Page 90: ...4 21 6 After the engine shuts down reset the shutdown lever...
Page 104: ...5 1 5 Maintenance...
Page 147: ...6 1 6 Accessories guide...