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November 2008
Renewing the flexible hoses inside
Procedure:
the boom GTH-4013EX GTH-4514EX
How to renew flexible hoses:
PROTECT THE
ENVIRONMENT
Before disconnecting the hydraulic piping, place
containers of suitable size underneath to prevent
oil spillage.
CAUTION
Plug all disconnected parts to prevent dust or
impurities from entering the circuit. They can
cause serious damage.
DANGER
Before disconnecting the hydraulic piping,
ensure there is no pressure in the line. In case,
release the pressure by operating the control
levers with the engine stopped.
In any case, disconnect the hydraulic piping
with extreme caution and always wear suitable
personal protection equipment -e.g. goggles,
gloves, facial screen, etc.
Wrap up the end of the pipe to be disconnected
with some rags and slowly loosen the pipe
connector so that air comes out as slow as
possible.
Document 57.0009.0427
GTH-4017EX GTH-4514EX GTH-4013 EX
013
Table:
GTH-4017EX
GTH-4514EX
GTH-4013EX
Standard tools
1 Before disconnecting or refitting a flexible hose,
carefully clean the area all around.
2 Blow some compressed air to remove any
impurity.
3 For an easier renewal of the hoses, whose run
is not clearly visible, proceed as follows:
- disconnect the hose to be replaced from both
sides
- attach a cord to the side of the hose which
reaches the boom tip (B)
- disconnect the hose from the rear side of the
boom (C)
- remove the hose frome the hole under the first
section boom until it comes out completely
(D)
- disconnect the cord and reconnect the same
to the end of the new flexible hose making
sure the hose has been previously plugged
to prevent dirt from entering the circuit
- proceed in reverse order and re-assemble the
hose.
C
Section 7 - Repair Procedures
TABLE
Hours Min.
2
B
D
013
-
-
2
41
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