MAINTENANCE
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS
4-17
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS
4
To ensure safety at all times when operating or driving the machine, the user of the machine must always carry out
periodic maintenance. In addition, to further improve safety, the parts in the safety-critical parts list on the next
page must also be replaced at the specified interval. These parts are particularly closely connected to safety and
fire prevention, so please contact your Komatsu distributor to have them replaced.
Material quality of these parts can change as time passes and they are likely to wear out or deteriorate. However,
it is difficult to determine the extent of wear or deterioration at the time of periodic maintenance. Hence, it is
required to replace them with new ones regardless of their condition after a certain period of usage. This is impor-
tant to ensure that these parts maintain their full performance at all times.
Furthermore, should anything abnormal be found on any of these parts, replace it with a new one even if the peri-
odic replacement time for the part has not yet arrived.
If any of the hose clamps show deterioration like deformation or cracking, replace the clamps at the same time as
the hoses.
Also perform the following checks with hydraulic hoses which need to be replaced periodically. Tighten all loose
clamps and replace defective hoses, as required.
When replacing hoses, always replace O-rings, gaskets, and other such parts at the same time.
Have your Komatsu distributor replace the critical parts.
SAFETY CRITICAL PARTS
4
NO. Safety critical parts for periodic replacement
Q'ty Replacement interval
1
Fuel hose (fuel tank - fuel strainer)
1
Every 2 years or
4000 hours, which-
ever comes sooner
2
Fuel hose (fuel strainer to fuel pre-filter)
1
3
Fuel hose (fuel pre-filter to engine inlet)
1
4
Fuel return hose (engine outlet to fuel tank)
1
5
Hose (power train strainer - power train pump)
1
6
Hose (power train pump - power train filter)
1
7
Hose (power train filter - transmission case)
1
8
Hose (transmission case - steering case)
1
9
Hose (power train lubrication pump - steering case)
1
10
Hose (Scavenging pump - Steering case)
1
11
Hose (torque converter case - mission oil cooler)
1
12
Hose (mission oil cooler - transmission case)
1
13
Brake pressure detection hose
1
14
Torque converter inlet post pressure detection hose
1
15
Torque converter outlet post pressure detection hose
1
16
Main relief valve pressure detection hose
1
17
Hose (HSS pump - main control valve)
2
18
Hose (HSS pump - central drain block)
1
19
Hose (self-reducing pressure valve - hydraulic tank)
1
20
Hose (main valve - HSS motor)
2
21
Hose (main valve - hydraulic tank)
1
Содержание 69001
Страница 2: ......
Страница 3: ...FOREWORD 11 ...
Страница 24: ...CONTENTS 1 22 ...
Страница 54: ...PRECAUTIONS FOR MACHINE SAFETY 2 30 ...
Страница 177: ...OPERATION TROUBLESHOOTING 3 123 ...
Страница 178: ...TROUBLESHOOTING OPERATION 3 124 ...
Страница 179: ...MAINTENANCE 14 WARNING Please read and make sure that you understand the SAFETY section before reading this section ...
Страница 253: ...SPECIFICATIONS 15 ...
Страница 270: ...EQUIPPING FIRE EXTINGUISHER AND FIRST AID KIT ATTACHMENTS OPTIONS 6 16 ...
Страница 271: ...INDEX 17 ...
Страница 272: ...INDEX 7 2 ...
Страница 275: ...COLOPHON 18 ...