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-
secu ring screws and washers
-
bottom plate.
OIL PIPING
Clean thoroughly with pure gasoline and blow
with
compressed air.
OIL PRESSURE RELIEF VALVE
Located
on oil pipe
(see
C on Fig
. 15)
it
Is
rated
to allow in circuit a delivery pressure of 2.5 -
3.0
kgs/sq.cm.
(35.6
- 42.7
Ibs/sq.in.).
If pressure
exceE:lds prescribed rating, valve opens
thus
restoring required
pressure.
It is strongly recom-
mended not to tamper with this device, which
has been set at
Factory.
OIL BREATHER
(see
Fig
.
63)
Consisting of a
box
with a
diaphragm
retained
against breather pipe from a previously rated
spring.
Breather tube, oil return tube and vent
tube are connected
to breather
box by means of
rubber sleeves and
bands.
Purpose of oil
breather
is
to discharge excess pressure and
It
comes
into action whenever relief valve opens
to restore required oil pressure.
OIL PRESSURE GAUGE
Electrically
connected
to warning light on
control
Fig.
62
Fig.
63
panel
,
indicates
insufficient
oil pressure in lu-
brication
syste
m.
When red warning light is shown
(while
running),
it
means
that
oil pressure is below required
raling.
Fig.
64
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