Page 1 of 9
Service News
AT12198
1. Contents of modification
(1) Introduction
(2) Contents of modification
Modifications (A) and (B) shown in the figure below right are made.
(A) Silicon cover is used for the compensation wire of the sensor to improve waterproofness
(B) Silicon filler is added to the connecting portion to improve adhesion to the compensation wire
Details of modification
Current (Typical model: HD465-E3-7)
Modified (Typical model: HD465-E3-7)
Part No.: 6215-11-8281
Part No.: 6245-11-5670
･
Inside of compensation wire
･
Connecting portion of sheath and
compensation wire
(A) Silicon cover is used
･
Connecting portion of
Heat shrink tube is added
(B) Silicon filler is added
･
Right side of engine
･
Right side of engine
This exhaust gas temperature sensor consists of a thermocouple and a compensation wire and its
connecting portion is welded and sealed by using epoxy resin. After this sensor is used for a long
period, if the waterproof coating of its wiring harness is deteriorated and splashed with water, the
insulation resistance of the coating decreases. As a result, the sensor may collect external electrical
noise. To prevent this, a new exhaust gas temperature sensor having higher waterproofness is
provided.
Glass cover
Braid
Epoxy filler
Braid
Coating
Since connecting portion of compensation
wire is near exhaust manifold, its ambient
temperature is high.
Connecting portion of compensation wire is
set far from hot portion and silicon filler is
used to improve airtightness.
sheath and
compensation wire
Exhaust gas
temperature
sensor
Exhaust gas
temperature
sensor
AT122198

Page 2 of 9
Service News
AT12198
2. Modification procedure
Replace the clips and bands for the replaced exhaust gas temperature sensor with brand new ones.
For the locations of clips and bands on each machine model, see the details of each machine model.
* Precautions for modification *
When handling the improved sensor, observe the precautions shown below (marked with *).
For the unspecified bolt tightening torque, see Shop Manual.
3)
If a connector of PM Clinic specification is used, remove and keep it, and install it again to
the improved sensor end after installing the sensor.
4)
Since the bolts, brackets, etc. are reused, record their locations and keep them until you install them
again.
1)
Remove the exhaust manifold insertion portion of the exhaust gas temperature sensor
together with the fitting.
2)
Details of sensor end and precautions for installation
AT122198

Page 3 of 9
Service News
<1> For WA600-6, WA600-6R, and WD600-6
* For the brand new parts to be prepared, see 3.
--- Reused part
--- Brand new part
1. Remove the parts shown below.
2. Install the parts shown below.
* For the unspecified bolt tightening torque, see Shop Manual.
BOLT
01010-E1255
BOLT
x2
01010-E1255
x2
WASHER
01643-31232
x2
WASHER
01643-31232
x2
BAND
BRACKET
TOP OF ENGINE
BAND
WASHER
BRACKET
TOP OF ENGINE
6218-81-8480
6245-81-9290
6218-81-8480
01643-31032
x2
6245-11-5590
x2
PUT IN BETWEEN CLIP AND BRACKET.
PLATE
WASHER
BOLT
BOLT
6164-62-8230
BOLT
CLIP
01643-31032
01010-81030
GASKET
01010-81025 x2
BRACKET
01435-01030
GASKET
6240-81-4431
x2
x2
6164-62-8241
WASHER
6245-81-9280
x2
6164-62-8241
x2
01643-31032 x2
PLATE
SENSOR
6164-62-8230
BOLT
6215-11-8281
HARNESS SIDE
01010-81025 x2
x2
CONNECTOR: V29
WASHER
HARNESS SIDE
BOLT
01643-31032 x2
CONNECTOR: V30
01435-01020
x2
BOLT
BOLT
01010-81025 x2
01435-01016
WASHER
x2
01643-31032 x2
WASHER
CLIP
01643-31032
x2
08193-20010 x2
CLIP
CLIP
SPACER
SENSOR
SENSOR
SPACER
CLIP
RIGHT SIDE OF ENGINE
08193-20010
6245-71-5950
6144-81-6680
6245-11-5550
6245-11-5570
6144-81-6680
6240-81-4431
x2
x2
x2
L=25.5
x2
L=25.5
x4
3. Paint the modified portions. (Color: Black gray)
APPLY LC-G TO
THREAD PORTION.
INSTALL SENSOR ON FRONT SIDE
OF ENGINE TO UPPER SIDE.
(INSTALL CONNECTOR PAINTED
WHITE TO UPPER SIDE)
RIGHT SIDE
OF ENGINE
PUT IN BETWEEN
CLIP AND BOLT.
FOR VHMS
SPECIFICATION,
CONNECT HARNESS
TO CONNECTOR.
AT122198

Page 4 of 9
Service News
AT12198
<2> For PC125-8 and PC1250-8R
* For the brand new parts to be prepared, see 3.
--- Part to be reused
--- Brand new part
1. Remove the parts shown below.
2. Install the parts shown below.
* For the unspecified bolt tightening torque, see Shop Manual.
BOLT
WASHER
01010-81030 x2
01643-31032 x2
TOP OF ENGINE
BOLT
01010-81030 x2
WASHER
01643-31032 x2
BAND
SPACER
BRACKET
SENSOR
SENSOR
6218-81-8480
6131-12-5920
6245-11-5770
6245-11-5560
6245-11-5580
BAND
BRACKET
SENSOR
x2
L=12
6218-81-8480
6162-13-7360
6215-11-8281
PLATE
CLIP
x2
x2
6164-62-8230
600-051-6050
x2
CLIP
BOLT
BOLT
BRACKET
6245-71-5950
01435-01020
GASKET
BOLT
01010-81030 x2
BOLT
6245-81-9280
x2
x2
6164-62-8241
01024-81016
WASHER
01435-01030
GASKET
x4
01643-31032 x2
x2
6164-62-8241
PLATE
6164-62-8230
HARNESS SIDE
CONNECTOR: EXHF
BOLT
01010-81030
HARNESS SIDE
x2
WASHER
01643-31032
BOLT
x2
01435-01016
BOLT
x2
01435-01016
CLIP
x2
08193-20010
WASHER
x2
01643-31032
x2
CLIP
BOLT
BRACKET
BOLT
RIGHT SIDE OF ENGINE
RIGHT SIDE OF ENGINE
STAY
CLIP
08193-20010
01010-81025
6245-11-5780
01010-81035 x2
6215-85-4120
6240-81-4431
x2
WASHER
WASHER
x6
01643-31032
01643-31032  x2
3. Paint the modified portions. (Color: Black gray)
INSTALL SO THAT UPPER CLIP IS ON
BRACKET SIDE.
TOP OF ENGINE
PUT IN BETWEEN
CLIP AND BOLT.
CONNECTOR:
EXHR
FOR VHMS
SPECIFICATION,
CONNECT HARNESS
TO CONNECTOR.
INSTALL SENSOR ON FRONT
SIDE OF ENGINE TO UPPER
SIDE.
(INSTALL CONNECTOR
PAINTED WHITE TO UPPER
SIDE)
AT122198

Page 5 of 9
Service News
<3> For HD465-E3-7
* For the brand new parts to be prepared, see 3.
--- Part to be reused
--- Brand new part
1. Remove the parts shown below.
2. Install the parts shown below.
* For the unspecified bolt tightening torque, see Shop Manual.
SPACER
6131-12-5920
CLIP
x3     L=12
600-051-6050
x2
WASHER
01643-31032
x2
SPACER
CLIP
6631-11-6390
600-051-6050
BOLT
x3     L=14
x2
01435-01020
x2
SENSOR
6245-11-5670
BOLT
x2
01010-81035
x3
BAND
WASHER
6218-81-8480
SENSOR
01643-31032
6215-11-8281
x3
CLAMP
x2
6218-81-8430
BOLT
CLIP
01010-81035 x3
6240-81-4431
WASHER
x6
HARNESS SIDE
HARNESS SIDE
01643-31032  x3
CLIP
BOLT
08193-20010
01435-01020
CLIP
x2
x2
08193-20010  x2
RIGHT SIDE OF ENGINE
RIGHT SIDE OF ENGINE
3. Paint the modified portions. (Color: Black gray)
CONNECTOR:
HM-21A
CONNECTOR:
HM-21B
TOP OF
ENGINE
INSTALL FOLLOWING PARTS
TO EXHAUST MANIFOLD
COVER IN ORDER OF THEIR
NUMBERS.
<1> WASHER
<2> CLIP
<3> SPACER
<4> CLIP
<5> WASHER AND BOLT
TOP OF
ENGINE
DETAILS OF CLAMP
MARKED WITH
FOR VHMS
SPECIFICATION
, CONNECT
HARNESS TO
CONNECTOR.
INSTALL
SENSOR ON
FRONT SIDE
OF ENGINE
TO CYLINDER
BLOCK SIDE.
AT122198

Page 6 of 9
Service News
AT12198
<4> For HD465-E3-7R
* For the brand new parts to be prepared, see 3.
--- Part to be reused
--- Brand new part
1. Remove the parts shown below.
2. Install the parts shown below.
* For the unspecified bolt tightening torque, see Shop Manual.
SPACER
6131-12-5920
SPACER
x2     L=12
6631-11-6390
x2      L=14
BAND
6218-81-8480
BAND
CLIP
6218-81-8480
600-051-6050
x2
REAR SIDE OF ENGINE
HARNESS SIDE
HARNESS SIDE
REAR SIDE OF ENGINE
CONNECTOR: HM-21A
CONNECTOR: HM-21B
FOR VHMS SPECIFICATION, CONNECT HARNESS TO CONNECTOR.
CLAMP
6218-81-8430
BOLT
01010-81035 x2
BAND
WASHER
6218-81-8480  x2
01643-31032 x2
SENSOR
SENSOR
6245-11-5670
6215-11-8281
x2
x2
WASHER
BOLT
CLIP
01643-31032
01010-81030
6240-81-4431
x4
BRACKET
6219-81-8850
BOLT
CLIP
01435-01020   x2
08193-20010
BOLT
BOLT
x2
01435-01020
01010-81035 x2
CLIP
x2
WASHER
08193-20010   x2
01643-31032 x2
RIGHT SIDE OF ENGINE
3. Paint the modified portions. (Color: Black gray)
RIGHT SIDE OF
ENGINE
INSTALL
SENSOR ON
FRONT SIDE
OF ENGINE
TO CYLINDER
BLOCK SIDE.
INSTALL FOLLOWING
PARTS TO BRACKET
UNDER EXHAUST
MANIFOLD COVER IN
ORDER OF THEIR
NUMBERS.
<1> CLIP
<2> SPACER
<3> CLIP
<4> WASHER AND BOLT
DETAILS OF CLAMP
MARKED WITH
133
(REFERENCE)
AT122198

Page 7 of 9
Service News
AT12198
<5> For D375A-5E0, D375A-5R, D375A-6, and D375A-6R with VHMS specification
* For the brand new parts to be prepared, see 3.
--- Part to be reused
--- Brand new part
1. Remove the parts shown below.
2. Install the parts shown below.
* For the unspecified bolt tightening torque, see Shop Manual.
CLIP
WASHER
600-051-6050
01643-31032
x2
SPACER
SPACER
6631-11-6390
6631-11-6390
CLIP
L=14
L=14
6240-81-4431
x2
CLIP
SPACER
600-051-6050
SPACER
6631-11-6390
x2
6131-12-5920
SPACER
L=14
x2     L=12
6131-12-5920
L=12
CLIP
600-051-6050
BOLT
x2
01010-81025
CLIP
x6
6240-81-4431
WASHER
x4
01643-31032
REAR SIDE OF ENGINE
x6
REAR SIDE OF ENGINE
SENSOR
PLATE
6245-11-5680
6245-11-7880
BOLT
x2
01010-81025
x6
BAND
BAND
WASHER
6218-81-8480
PLATE
6218-81-8480
01643-31032
x3
6245-11-7880
x4
x6
BOLT
BOLT
SENSOR
01435-01025
01435-01025
6166-15-8181
x2
HARNESS SIDE
HARNESS SIDE
x2
x2
NUT
CONNECTOR: EXHF
CONNECTOR: EXHR
NUT
01584-01008
01584-01008
BOLT
BOLT
01010-81035 x2
CLIP
01010-81035 x2
CLIP
WASHER
08193-20010
WASHER
08193-20010
01643-31032 x2
x2
01643-31032 x2
x2
RIGHT SIDE OF ENGINE
3. Paint the modified portions. (Color: Black gray)
RIGHT SIDE OF
ENGINE
INSTALL
SENSOR ON
FRONT SIDE
OF ENGINE
TO CYLINDER
BLOCK SIDE.
CONNECT HARNESS
TO CONNECTOR.
AT122198

Page 8 of 9
Service News
AT12198
<6> For D375A-5E0, D375A-5R, D375A-6, and D375A-6R with PM Clinic specification
* For the brand new parts to be prepared, see 3.
--- Part to be reused
--- Brand new part
1. Remove the parts shown below.
2. Install the parts shown below.
* For the unspecified bolt tightening torque, see Shop Manual.
CLIP
CLIP
BOLT
WASHER
08193-20010
600-051-6050
01010-81020
01643-31032
x2
x2
BOLT
01010-81030
x2
CLIP
WASHER
08193-20010
01643-31032
x2
x2
BOLT
01010-81020
WASHER
BOLT
01643-31032
TOP OF ENGINE
01010-81030
x2
x2
WASHER
WASHER
BOLT
BOLT
WASHER
SPACER
01643-31032
01643-31032
01010-81030
01010-81035
01643-31032
6631-11-6390
x2
x2
x2
L=14
SPACER
CLIP
6131-12-5920
6240-81-4431
x2     L=12
x8
WASHER
BOLT
01643-31032
01010-81035
SENSOR
x2
x2
CLIP
6166-15-8181
BOLT
600-051-6050
x2
01010-81035
x6
WASHER
BOLT
01643-31032
SENSOR
01010-81025
SPACER
6245-11-5680
x6
6131-12-5920
x2
WASHER
L=12
01643-31032
SPACER
x6
6631-11-6390
x2     L=14
BOLT
PLATE
RIGHT SIDE OF ENGINE
01010-81025
6245-11-7880
x6
WASHER
PLATE
01643-31032
6245-11-7880
x6
RIGHT SIDE OF ENGINE
3. Paint the modified portions. (Color: Black gray)
INSTALL SENSOR ON FRONT SIDE
OF ENGINE TO INSIDE OF ENGINE
Y
AT122198

Page 9 of 9
Service News
AT121998
3. List of parts newly required for modification
<1> For WA600-6, WA600-6R, and WD600-6
<2> For PC125-8 and PC1250-8R
<3> For HD465-E3-7
6245-11-5550
SENSOR
6245-11-5560
SENSOR
6245-11-5670
SENSOR
6245-11-5570
SENSOR
6245-11-5580
SENSOR
600-051-6050
CLIP
6245-11-5590
BRACKET
6245-11-5770
BRACKET
01643-31032
WASHER
08193-20010
CLIP
6245-11-5780
BRACKET
6218-81-8430
CLAMP
6245-71-5950
CLIP
08193-20010
CLIP
08193-20010
CLIP
01643-31032
WASHER
6245-71-5950
CLIP
6631-11-6390
SPACER
01010-E1255
BOLT
600-051-6050
CLIP
6218-81-8480
BAND
01010-81030
BOLT
01643-31032
WASHER
01435-01016
BOLT
6131-12-5920
SPACER
01435-01020
BOLT
01435-01020
BOLT
6164-62-8241
GASKET
01010-81025
BOLT
6218-81-8480
BAND
01010-81035
BOLT
6164-62-8241
GASKET
6218-81-8480
BAND
<4> For HD465-E3-7R
6245-11-5670
SENSOR
6245-11-5680
SENSOR
6245-11-5680
SENSOR
6219-81-8850
BRACKET
08193-20010
CLIP
08193-20010
CLIP
6218-81-8430
CLAMP
600-051-6050
CLIP
600-051-6050
CLIP
08193-20010
CLIP
01643-31032
WASHER
6631-11-6390
SPACER
600-051-6050
CLIP
6631-11-6390
SPACER
01010-81035
BOLT
6631-11-6390
SPACER
6218-81-8480
BAND
01643-31032
WASHER
01010-81030
BOLT
01643-31032
WASHER
6218-81-8480
BAND
1
Part name
Q'ty
2
1
1
1
2
1
2
Part No.
Part name
Q'ty
2
3
2
Part No.
Part name
Q'ty
Part No.
Part name
Part No.
1
2
1
2
2
6
1
3
2
2
8
2
2
1
<6> For D375A-5E0, D375A-5R, D375A-6, and
D375A-6R with PM Clinic specification
Q'ty
2
Part No.
Part name
1
4
2
Q'ty
1
Part No.
Part name
2
1
2
1
3
3
3
2
2
2
6
2
2
1
<5> For D375A-5E0, D375A-5R, D375A-6, and
D375A-6R with VHMS specification
5
1
1
1
1
2
2
1
2
Q'ty
2
AT122198