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5-30
5. Replace the oil return filter element
After that, replace every 1000 hours. The
oil return filter is in the hydraulic oil tank,
so:
1) Unscrew the cap on the top of the tank.
2) Remove the spring, bypass valve, and
oil return filter from the inside of the tank.
3) Clean the spring and bypass valve by
using the diesel filter element or a new
filter element, and then reinstall them.
4) Install the fuel tank cap.
6. Replace the fuel filter element of pilot oil circuit
After that, replace every 1000 hours.
Attention: Be sure to discharge the air pressure in the hydraulic oil tank before removing the
filter element.
1) Unscrew oil filter housing
⑤
.
2) Remove the filter element
③
.
3) Install the new O-ring
②
in the filter
head
①
groove.
4) Before assembling the new filter
element, apply a layer of hydraulic oil on
the sealing surface of the filter element
and install the filter element into the filter
head.
5) Clean the oil filter housing
⑤
and soft
magnet
④
, be careful not to allow dirt,
dust or water to enter the filter housing.
6) Tighten the oil filter housing and filter
head with a torque of 25~35N.m.
7) Connect the pipeline and start the
engine slowly. Operate continuously for
3-5 minutes to discharge the air in the
system.
8) Park the machine on the level ground,
stop the machine to check the oil level,
and add oil if necessary. Pay attention
that the oil filling shall not exceed the
required maximum oil level limit.
Filter
head
O-ring
Filter
eleme
nt
Soft
magne
t
Oil filter
housing
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...