Hino S5-LJ05E04A Workshop Manual page 570

COOLING FAN
COOLING (J05E)
3. REMOVING THE FAN CLUTCH
(1) Unfasten the 4 nuts to remove the fan clutch from the cooling fan.
FAN CLUTCH
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INSPECTING THE COMPONENTS
1. INSPECTING THE FAN CLUTCH BEARING
(1) Inspect the fan clutch for axial backlash. If found defective,
replace the fan clutch.
(2) Inspect the fan clutch for improper rotation. If found defective,
replace the fan clutch.
! CAUTION
The fan clutch is not detachable. So if found defective, replace it
as assembly.
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2. INSPECTING FOR SILICONE OIL LEAKAGE
(1) Inspect the fan clutch for adherence and bleeding of silicone oil. If
found defective, replace the fan clutch.
! CAUTION
The fan clutch is not detachable. So if found defective, replace it
as assembly.
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3. INSPECTING THE BIMETAL
(1) Remove the dirt and dust on the bimetal if any.
BIMETAL
! CAUTION
Do not apply excessive force to the bimetal to prevent deforma-
tion.
(2) If crack and damage is found with the bimetal, replace the fan
clutch.
! CAUTION
The fan clutch is not detachable. So if found defective, replace it
as assembly.
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