Track Shoes Selection; Bucket Teeth Selection - Komatsu PC290LC-11 Operation & Maintenance Manual

ATTACHMENTS AND OPTIONS

TRACK SHOES SELECTION

Select the appropriate track shoe to match the operating conditions.
Track shoe selection
1.
Check the ground to work in Use column of Classification by use table, and then check Classification col-
umn.
Classification by use
Classifica-
Use
tion
Rocky
ground, riv-
A
erbeds
Normal soil
Normal soil
B
Soft ground
Extremely
soft ground
C
(swampy
ground)
2.
Check Classification column in List of shoe specifications and select a suitable shoe for the use.
Specifications
Option 600 mm Triple grousers
Standard 700 mm Triple grousers
Option 800 mm Triple grousers
Option 850 mm Triple grousers
Precaution for track shoe selection
• Since working conditions "B" and "C" are for wide shoe, their use is limited.
Check the precautions for use and the using condition, and then use a suitable shoe.
• When selecting the shoe width, choose the narrowest shoes possible to bring the machine within the range
where there is no problem regarding the machine flotation and ground contact pressure.
If wider shoes than necessary are used, the load on the shoe will increase. It may cause problems such as
bending of the shoe, cracking of the link, damage of the pin, and looseness of the shoe bolts.

BUCKET TEETH SELECTION

Depending on the working conditions, there is a danger that an adapter and tooth may be lost. Select either one
from the vertical pin type of tooth or horizontal pin type of tooth that is suitable for the purpose.
While the standard teeth of both vertical and horizontal pin types may be used widely, the following kinds of
teeth are recommended depending on the working conditions.
METHOD FOR SELECTING TEETH
VERTICAL PIN TYPE TOOTH
General digging: Digging and loading normal soil, such as sand, gravel, clay, etc.
6-38
On rough ground with large obstacles such as boulders or fallen trees, travel at
•
Lo speed.
These shoes cannot be used on rough ground where there are large obstacles
•
such as boulders or fallen trees.
Travel at Hi or Mi speed only on flat ground, and if it is impossible to avoid trav-
•
eling over obstacles, shift down and travel at half speed in Lo.
Use the shoes only in places where the machine sinks and it is impossible to
•
use A or B shoes.
These shoes cannot be used on rough ground where there are large obstacles
•
such as boulders or fallen trees.
Travel at Hi or Mi speed only on flat ground, and if it is impossible to avoid trav-
•
eling over obstacles, shift down and travel at half speed in Lo.
PC290LC-11
Category
A
B
C
C
Precautions when using
Specifications
Standard 600 mm Triple grousers
Option 700 mm Triple grousers
Option 800 mm Triple grousers
Option 850 mm Triple grousers
ATTACHMENTS AND OPTIONS
PC290NLC-11
Category
A
B
C
C