Hino J05E-TH, Workshop Manual

Page: 15 / 278

GENERAL
1–11
2. Precoated bolt
Precoated bolt is the bolt with an application of a seal lock
agent at the thread.
(1) When re-application of lock agent is required
a. When precoated bolts are removed
b. When precoated bolts are moved due to tightening
check (for loosening or tightening)
NOTICE
•
Check torque with the lower limit of the
tightening torque allowable value. If
movement is found, tighten the bolt
according to the procedure below.
(2) Re-use method of precoated bolt lock
a. Clean bolt and screw holes. (Clean screw holes for
replacement.)
b. Dry completely by blowing air.
c. Apply the specified seal lock agent to the thread of the
bolt.
3. Plastic region tightening method (angle method)
(1) Precautions
Some engines are tightened with the plastic region
tightening method.
Since it is different from the conventional method, tighten
it according to the instruction in the text.
(2) Parts tightened
Cylinder head bolt, crankshaft main bearing cap bolt,
connecting rod bearing cap bolt, etc.
! CAUTION
•
Measure the overall length of the bolt before
assembly and replace the bolt if the length
exceeds the service limit.
Apply engine oil to bolt seating and bolt
thread in assembly.
(3) Tightening method after tightening to seating torque
Tightening of 90
°
, 135
°
(90
°
once and 45
°
once) and
180
°
(90
°
twice) is available.
Seal Lock Agent
SAPH311990100007
One turn by 90°
Tighten it 90°
SAPH311990100008
One turn by 90°
One turn by 45°
Tighten it 90°
(First time)
Tighten it 45°
(Second time)
SAPH311990100009
Two turns by 90°
Tighten it 90°
(First time)
Tighten it 90°
(Second time)
SAPH311990100010