TP-5594 5/956-6 Installation
Air Requirements
Each engine is equipped with a high water temperature
shutdown switch which will automatically shut downthe
set if operating temperaturesclimb too high. To prevent
the generator set from shutdown, make sure the
compartment openings are large enough to allow
adequate circulation of the cooling and combustion air.
The minimum free-air opening in the compartment is
shown in Figure 6-7. Remember louvres, screens, and
protective grill work definitely restrict effective air flow.
Evena simple,relativelyopenmesh screen as shownin
Figure 6-8, will restrict air flow as much as 45%. The
intake openings must be increased to compensate for
such restrictions. Air inlet and discharge openings for
inline radiator-mounted models are shown in
Figure 6-9, Figure 6-10, Figure 6-11, Figure 6-12,
Figure 6-13, and Figure 6-14.
AIR
INLET
AIR
OUTLET
7 kW Remote Radiator 140 (903) 167 (1077)
7 kW Inline Radiator
(Suction) 421 (2716) 319 (2058)
7 kW Inline Radiator
(Pusher) 239 (1542) 474 (3058)
10 kW Remote Radiator 140 (903) 195 (1258)
10 kW Inline Radiator
(Suction) 446 (2877) 309 (1995)
10 kW Inline Radiator
(Pusher) 242 (1562) 502 (3241)
Figure 6-7. Min. Air Requirements
sq. in. (sq. cm.)
Wide
Mesh
Screen
Figure 6-8. Inlet Screen
Remote and inline radiator generator sets with suction
fans will require an air outlet in the compartment floor,
and an air inletin thegenerator-end wall. Inlineradiator
generator sets with pusher fans require an outlet and
inlet in the compartment floor, and an air inlet in the
generator-end wall. An additional 3 in. (7.62 cm)
diameter hole is required in the compartment so
combustionairfromtheoutsideofthe compartment can
be brought into the air cleaner using a 2 in. (5 cm) I.D.
hose.
NOTE
The air inlet perimeters, at the engine radiator and
generator end bracket must be sealed against the
compartment wall. This is to make sure that only
exterior air is drawn into the generator compartment.
NOTE
Kubota’s allowable air intake restriction limit is:
8 in. (200 mm) of water at installation.
25 in. (635 mm) of water after use.
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