Hino S5-LJ05E04A Workshop Manual page 460

11–52
E-RING
BACKUP
RING No.3
O-RING
BACKUP
RING No.2
BACKUP
RING No.1
BACKUP RING CLOSED GAP
NG OK
OVERRIDING
OK NG
CORRECTION
FAILURE
EXHAUST (J05E)
HOW TO MOUNT THE FUEL ADDITION VALVE O-
RING
1. MOUNTING THE FUEL ADDITION VALVE O-RING
(1) Replace with a new O-ring, backup ring, and E-ring and mount
them as shown in the figure.
! CAUTION
• Mount the backup ring No.1 and No.2 paying attention to
their directions.
• Mount the backup ring and O-ring in the right order.
SHTS021271000073
• Check the backup ring closed gap for overriding and gaping
as shown in the figure.
NG
GAPING
SHTS021271000074
2. CHECKING AFTER MOUNTING
(1) After mounting the O-ring, backup ring, and E-ring to the fuel
NG
addition valve, check the seal for damage, collapse, and protru-
sion from the seal groove.
! CAUTION
Check the O-ring groove of the fuel addition valve for foreign mat-
ter or damage.
COLLAPSE
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