Komatsu PC210-10 DEMOLITION BASE SPEC., Operation & Maintenance Manual

Page: 446 / 458

SAFETY CRITICAL PARTS REPLACEMENT PARTS
7–2
SAFETY CRITICAL PARTS
SAFETY CRITICAL PARTS:ALL-0000-20LK00A
For using the machine safely for an extended period of time, you must periodically replace the safety critical and
fire prevention-related parts listed in the table of important parts.
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
important 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
periodic 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 not to be replaced periodically. Tighten all
loose hoses 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 LIST
Safety critical parts listPC220-0000-20MK00A
No. Parts for periodic replacement Q'ty Replacement interval
1 Fuel hose (between fuel tank and fuel pre-filter) 1
Every 2 years or 4000
hours, whichever
comes sooner
2 Fuel hose (fuel pre-filter - supply pump) 1
3 Fuel return hose, cooler (engine - fuel cooler) 1
4 Fuel return hose (fuel cooler - fuel tank) 1
5 Fuel hose (supply pump - fuel main filter) 2
6 Engine oil hose (between engine and oil filter) 2
7 Pump outlet hose (between pump and control valve) 2
8 Work equipment hose (boom cylinder inlet port) 4
9 Work equipment hose (bucket cylinder line, boom foot) 2
10 Work equipment hose (bucket cylinder inlet port) 2
11 Work equipment hose (arm cylinder line, boom foot) 2
12 Work equipment hose (arm cylinder inlet port) 2
13 Attachment additional line hose (boom foot) 2
14 Attachment additional line hose (boom top) 2
15 Swing line hose (swing motor inlet port) 2
16 Main suction hose 1
17 Heater hose 2
18 Travel line hose (between control valve and swivel joint) 4
19 Travel line hose (between swivel joint and travel motor) 4
20 Pump branch hose 2
21 Pump LS hose 2
22 Pump pressure hose 1
23 Accumulator (for control circuit) 1
24 Accumulator (For additional attachment low pressure, high pressure)
each
1
25 KCCV hose 9 Every 4500 hours
26 Fuel spray prevention cap 1 set Every 8000 hours
27 Seat belt 1
Every 3 years from start
of usage or 5 years
after manufacturing of
seat belt, whichever
comes sooner