Figure 103
In case any operation has been executed on the components
of the feed circuit, it is necessary to execute bleed ing of air
within the system.
- Loosen the bleed er vent screw (3) on the fuel filter (1)
and keep working on the bleed lever of the priming
pump (2).
- Continue executing this operation until when fuel drains
from the bleeder vent screw.
- Tighten the bleeder vent screw (3)
- Vary out the assembly fitting the power take−off in its
housing, providing new gasket and c hecking t he sprocket
gear meshing.
- Assemble cover and gasket and tighten the screws to the
prescribed couple.
Figure 104
!
The following tests shall be made after engine
assembly to th e vehicle.
Preventively check that the liquid levels have been
correctly restored.
Feed system bleed procedure
Where designed, there is a power take−off able to tr ansmit
motion to different auxiliary parts.
Disassembly of such mechanism shall be execu t ed as
following:
- Loosen the two screws (3) and after having removed the
cover (1) with a spec ially provided extractor, with dr aw
the power take−off (2).
- The two gaskets (4) shall be replaced in phase of
reassemble.
Power take−off disassembly and assembly
procedure
75720
1
2
34
Checks and controls
- There is no water bleeding from the manifolds
conn ec t ing engine cooling circuit pipelines and cabin
intern al heating, eventually providing to further tighten
the locking rings.
- Carefully check the fuel connection pipes to the
respective unions.
- There is no oil leakage from the lubr i cation circuit of the
various pipelines co nnecting cover an d.
- Cylin der head, oil pan and bearin g, oil filter and heat
exchanger as well as relating housings.
- There is n o fuel leakage from fu el pipelines.
- There is no blow−by from pneumatic pipes (if provided).
- Verify cor rect working of the lighting leds of the
dashboardcontainingthetoolsaswellasofthe
equipment that was disconnected during engine
disconnection.
- Check and blow by with care the engine cooling system,
carrying out frequent drainage.
Start the engine, let it run at revolution regimen
slightly higher than idling and wait that the coolin g
liquid temperature reaches the value enabling
thermostat opening, then check that:
76211
SECTION 3 − DUTY − INDUSTRIAL APPLICATION
38
E NG I NE S
ED. FEBUARY 2003
zs
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