Komatsu D375A-8 User Manual

SELECTION PROCEDURE OF RIPPER POINT
(Check for cracks
or breakage)
(Check penetration)
Procedure (4)
Procedure (2)
(Check wear)
Procedure (3)
Procedure (1)
Is wear fast ?
Are thermal
cracks produced ?
Does rock have high
quartz contents ?
Does it penetrate ?
(Can it be used to
end ?)
Do impact force
cause breakage ?
Do impact force
cause breakage ?
Does it penetrate ?
(Can it be used to
end ?)
Install standard point B
Yes
No
Yes No
Yes
(Over 70%)
No
(Less than 70%)
NoYes
No
Yes
No
Yes
Yes
No
Install point D
Install standard
point B
Install point F
Install point E
(Only type of point is worn)(Whole point is worn evenly)
Typical
rock
Hardness Soft Medium
Soft Hard
Soft Hard Soft Hard
Type of rock Shale, limestone
All type of general rock
Sandstone
Basalt, andesite, granite, chest
Features ½
fLittle quartz,
little wear
fDeposited in
layers, so ripping
is easy
fProportion of
quartz is high
(70% - 90%),
point wears
rapidly
fProportion of quartz is not so high (40% - 70%)
fRock is not in layers or seams, so heat is generated
at point, point wear rapidly, ripping is difficult
Suitable
Features
Shape
Part No. 195-78-71420 195-78-71320 195-78-71370 195-78-71340 195-78-71350 195-78-71330 195-78-71390
Point B
fNon-symmetrical
shape
fYellow
fShort
Point C
fSymmetrical
shape
fYellow
fShort
Point D
fNon-symmetrical
shape
fYellow
fLong
Point E
fNon-symmetrical
shape
fRed
fLong
Point F
fNon-symmetrical
shape
fRed
fShort
Point G
fSymmetrical
shape
fRed
fShort
Point A
fNon-symmetrical
shape
fYellow
fShort
SELECTION PROCEDURE OF RIPPER POINT ATTACHMENTS AND OPTIONS
6-4

Komatsu D375A-8 Specifications

General

Brand	Komatsu
Model	D375A-8
Category	Construction Equipment
Language	English