Furukawa Unic URW370C4U Series, Operation & Maintenance Manual

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13-19
MAINTENANCE AND INSPECTION OF CARRIER
1
Throw the cock of fuel filter with water
separator upward to “CLOSE” position.
2
Unfasten the retaining ring to remove
the filter case and the element.
3
Wash the element with a diesel fuel and
blow compressed air with a pressure of
0.29 ~ 0.49MPa (28.4 ~ 71.1psi(3.0 ~ 5.0kgf/
cm
2 )) to the inside of the element to remove
dust.
4
Also remove foreign particles and mois-
ture deposited on the bottom of filter
case.
5
Check the O-ring, replace it with new
O-ring if it is found damaged.
6
Fit the cleaned element in the filter case
and tighten it into the filter bed with
your hand.
In order to prevent it from being over-tight-
ened, tighten the retaining ring by rotating
approx. 2/3 turns from which the packing sur-
face touches the seal surface on the filter bed.
7
Turn the cock on the fuel filter down-
ward to “OPEN” position.
8
Bleed the air in the fuel system and
check for fuel leakage.
Filter case
Cock
Retaining
ring
Element
“CLOSE”
“OPEN”