3.
Remove the cover mounting bolt (5), and remove the cov-
er (6).
The cover (6) may be jumped out by spring (7).
While pressing down the cover (6), remove the cover
mounting bolt (5).
4.
After removing the spring (7) and valve (8), take out the el-
ement (9).
5.
Remove all dirt from the parts taken out, then wash it in
clean diesel fuel or flushing oil.
6.
Install the new element in the place where the old element
(9) has been installed.
7.
Check the O-ring (10) to be fit between the hydraulic tank
and cover (6).
If the O-ring is damaged, replace it with a new O-ring.
8.
Place the valve (8) and spring (7) on top of the element.
9.
While pressing the cover (6) by hand, install the cover (6)
with the cover mounting bolts (5).
10. Start the engine.
11. Set the lock lever to FREE position (F).
Be sure to operate the lock lever by the operating portion
on the top.
12. Operate the work equipment control levers, and extend the
boom cylinder, bucket cylinder, and arm cylinder to their
stroke end.
13. Set the lock lever securely to LOCK position (L).
Be sure to operate the lock lever by the operating portion
on the top.
14. Stop the engine.
15. Tighten the cap of oil filler port (F) on the hydraulic tank se-
curely.
By doing so, the hydraulic tank is pressurized.
NOTICE
If the hydraulic tank is not pressurized, air is sucked in
the pump and it affects the components badly.
16. Return the plate (4) on the oil filler port (F) of the hydraulic tank to its original position, and fix it with bolt (3).
MAINTENANCE PROCEDURE
MAINTENANCE
4-86
Содержание PC45MR-30403
Страница 61: ......
Страница 62: ...OPERATION Please read and make sure that you understand the SAFETY section before reading this section 3 1...
Страница 64: ...14 Engine rear cover 15 Cooling cover 16 Battery 17 KDPF OPERATION GENERAL VIEW 3 3...
Страница 310: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1...
Страница 411: ......
Страница 412: ...SPECIFICATIONS 5 1...
Страница 417: ......
Страница 459: ......
Страница 460: ...REPLACEMENT PARTS 7 1...
Страница 475: ...PC45MR 5 PC55MR 5 HYDRAULIC EXCAVATOR Form No TEN00763 04 2018 KOMATSU All Rights Reserved Printed in Japan 02 2018...