1. OUTLINE
1-4
5) For parts which are required to use jig and
tools, don’t fail to use the specified jig and tools.
6) For parts which can not be removed in the
specified procedure, never force removal. First
check for the cause.
7) The removed parts should be put in order and
tagged so as to install on proper places without
confusion.
8) For common parts, pay attention to the quantity
and places.
(3) Inspecting parts
1) Check that the disassembled parts are free
from adherence, interference and uneven
working face.
2) Measure the wear of parts and clearance, and
record the measured values.
3) If an abnormality is detected, repair or replace
the parts.
(4) Reassembling hydraulic equipment
1) During the parts cleaning, ventilate the room.
2) Before assembly, clean parts roughly first, and
then completely.
3) Remove adhering oil by compressed air, and
apply hydraulic oil or gear oil, and then
assemble them.
4) Replace the removed O-ring, back-up rings and
oil seal with new ones, and apply grease oil on
them before assembling.
5) Removes dirt and water on the surface on
which liquid sealant are applied, decrease
them, and apply liquid sealant on them.
6) Before assembling, remove rust preventives on
new parts.
7) Use special tools to fit bearings, bushing and oil
seal.
8) Assemble parts matching to the marks.
9) After completion, check that there is no
omission of parts.
(5) Installing hydraulic equipment
1) Confirm hydraulic oil and lubrication oil.
2) Air release is required in the following cases ;
1. Change of hydraulic oil
2. Replacement of parts on suction pipe side
3. Removing and attaching hydraulic pump
4. Removing and attaching swing motor
5. Removing and attaching travel motor
6. Removing and attaching hydraulic cylinder
If hydraulic oil and lubricating oil are not
filled and also air bleed is not performed,
the hydraulic equipment may be damaged.
3) For air bleed of hydraulic pump and swing
motor, loosen drain plug on the upper part, start
engine, and run in low idling, then bleed air until
hydraulic oil is comes out. After completion of
comes, tighten plug securely.
4) For air bleed of travel motor and hydraulic
cylinder, starts engine and operate it for 10
minutes or more at no-load and low speed.
For cylinder, don’t move it to the stroke end
at beginning.
5) Air in pilot circuit can be bleed out by only
operating digging, swing and traveling motions
thoroughly.
6) Check hydraulic oil level.
Move attachments to hydraulic oil check
position, and check hydraulic oil level of tank.
Refill oil if the oil level is lower than the specified
level.
How to check oil level of hydraulic oil tank
1.1.4
ELECTRICAL EQUIPMENT
(1) The disassembly of electrical equipment is not
allowed.
(2) Handle equipment with care so as not to drop it or
bump it.
(3) Connector should be removed by unlocking while
holding the connector.
Never stress in tension to the caulked section by
pulling wire.
(4) Check that connector is connected and locked
completely.
(5) Engine key off before removing and connecting
connector.
LEVEL GAUGE
Oil level of hydraulic oil tank.
If the indicator is within
level marks, the oil quantity
is acceptable.
Содержание E225BSR
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