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TECHNICAL INFORMATION
Subject Modifications on Tool Holder
58512,58814

For Models HM0810, HM810B, HM0810T, HM0811, HM0821
Country All countries
Description As illustrated below;
1) Flat Washer 43 (Part No.267203-1) has been added as illustrated below in order to
fasten Tool Holer on Barrel Complete straightly with further accuracy.

2) The adhesive, Three Bond 1342 has been added on three spots of the thread of Tool Holder
as illustrated below to prevent Tool Holder from loosening.

3) In accordance with the modifications of 1) and 2), Tool Holders / Tool Holder Assemblies
for repairing of the subject Models have been changed to Tool Holder Sets.
These Tool Holder Sets additionally include each one piece of Flat Washer 43 (Part No.267203-1)
and O ring 38 (Part No.213508-7), which might necessarily be replaced whenever Tool Holders
/ Tool Holder Assemblies are replaced in repairing.
See the column of Interchangeability for Part Nos. of Tool Holder Sets.

Where Flat Washer 43 Is Placed and Three Bond 1342 Is Applied

Tool Holder Three Bond 1342 Flat Washer 43 O Ring 38 Barrel Complete
(on three spots) (color; gold, material; brass)

Note)
See the next page for "Service Manual for Tool Holders of Models HM0810/HM0810B/HM0810T" that we have
newly issued, taking these modifications into account.

Interchangeability(I/C)
Item No. Current part Q'ty I/C New part Q'ty Note
Three Bond 1342(50g) 0.1g For all Models
045017-6A
HM0810: 093 Flat Washer 43 1 For all Models
HM0810B: 086 267203-1
HM0810T: 081
HM0811: 095
HM0821: 090
HM0810: 034 Tool Holder Tool Holder Set
1 1
HM0811: 036 322594-8 193003-2 HM0810, HM0811
HM0821: 034 HM0821
HM0810, HM0811, Tool Holder Ass'y Tool Holder Set
1 1
HM0821: 500 134716-6 193010-5
Tool Holder Tool Holder Set
HM0810B: 031 1 1 HM0810B
323790-1 193005-8
Tool Holder Ass'y Tool Holder Set
HM0810T: 032 1 1 HM0810T
125070-9 193004-0
Note
Interchangeability mark ; means that the new part is substituted for the current.

Implementation
HM0810 : From serial No.405169E (May,1999) HM0811 : Discontinued since Apr.,1989
HM0810B : From serial No.37902E (May,1999) HM0821 : Discontinued since June,1991
HM0810T : From serial No.57443E (May,1999)
Service Manual for Tool Holders of Models HM0810/ HM0810B/ HM0810T
When re-securing Tool Holder in repairing, always take the steps of procedure as described below.
1) How to Remove Tool Holder
(a) Hold the machine tightly with a vise as in Fig.(1). (Motor side
of machine)
(b) Insert a hex.wrench (size: 17mm between
Copper Plates
the opposite sides) into the hex. socket of pipe of
(Part No.1R041)
Tool Holder, and loosen it with a pipe of 1m long
one meter long.

(Notes) loosened
1.When the hex. socket of Tool Holder is broken,
use a pipe wrench to grip Tool Holder directly Vise
and to loosen it.
2.When Tool Holder cannot be loosened, 17mm
heat it with a gasburner .
In case of damaging O Ring 38 and/or X Ring appropriate wood Hex.Wrench
at the time, sure to replace them with new ones. to stabilize the machine (17mm between
the opposite sides)
Fig.(1)
(Illustrated is Model HM0810T.)
2) How to Fasten Tool Holder on Barrel Complete
(a) As illustrated in the former page, set Flat Washer 43 (Part No.267203-1) in place and apply adhesive
on the three spots on the thread of Tool Holder.
And then, secure Tool Holder by taking the reverse steps of procedure of Removing as described above.

(Notes)
1.Replace Flat washer 43 with new one in every repairing because the washer is pressed and deformed
every time Tool Holder is secured.
2.Although the recommendable adhesive is Three Bond 1342 (Part No.045017-6A),
you may also use any type of adhesive that is available for oily surface.

25kg or over

(b) Fasten Tool Holder on Barrel Complete with torque of 1m
250Nm or over - that is, as in Fig.(2), give weight of 25kg
or over to the end of one meter pipe after securing Tool Holder
till the pipe comes to the horizontal position.

Fig.(2)

(c) How to Adjust the Position of Tool Holer; Tool Retainer
HM0810 - to see Fig.(3);
Secure Tool Holder till the side plate of Tool Retainer comes
parallel with the side of square foot of Barrel Complete.

HM0810B - to see Fig.(4);
Tool Retainer
Secure Tool Holder till the end side of Bolt-type of Tool Retainer
comes parallel with the side of square foot of Barrel Complete. Fig.(4) HM0810B
Fig.(3) HM0810
HM0810T - to see Fig.(5);
Secure Tool Holder till two opposite sides of the hex. socket of Z A
Tool Holder comes parallel with the two sides of square foot of Y
Barrel Complete as in the right illustration of Fig.(5).
At this time, Tool Holder should be secured till "Z" comes to "A"
as in the left illustration of Fig.(5).
However, when "Z" has already passed "A", sure to secure
Tool Holder till "Y" comes to "A".

Fig.(5) Model HM0810T