Mini Tunnel Excavator
Daily servicing work
For the daily servicing work, the following works shall be
completed by specific operators:
No. | Check item |
1 | Check the tension of track/chain, left & right |
2 | Check joints and the base plate of track/chain, left & right |
3 | Check the mucking loader for oil leakage (The hose joint shall be firmly locked when any hose or hose joint
is re-tightened, so as to avoid twisting) |
4 | Check the tension of triangle belt |
5 | (In order to avoid condensate formed prior to the next start, the fuel tank shall be fully filled up after use every day. After
filling-up, the filler cap shall be closely tightened to ensure
tightness) |
6 | Check the air filter element |
7 | Check the hydraulic cylinder head/cooling fins |
Check of operating mechanism
No. | Check item |
1 | Check possible cracks through visual check |
2 | Check hoses for leakage (The hose joint shall be firmly locked when any hose or hose joint
is re-tightened, so as to avoid twisting) |
3 | Check hoses for wear |
4 | Check the hydraulic cylinder for wear and leakage |
5 | Check the copper bush for wear or movement |
6 | Check the damper gear for wear |
7 | Check bolts and the housing |
8 | Check bucket teeth and fixing devices |
9 | Check whether nuts on the grab tilting lever are well fixed |
