Table of Contents
Advertisement
MAINTENANCE PROCEDURE
2.
Loosen nuts (2) and pull up nets (3).
3.
Clean nets (3) that you pulled up.
(They will be installed again in step 8.)
4.
Remove bolts (4) (8 places) and move bracket (5) to make
clearance between radiator fin (6) and oil cooler fin (7).
5.
Check the front and rear sides of radiator fins (6), oil cooler
fins (7), aftercooler fins (8), and condenser fins (9). If there
is any mud, dirt, leaves, etc. stuck to the fins, blow it off
with compressed air.
NOTICE
Steam or water may be used instead of the com-
pressed air. However, when performing powerful
steam cleaning (high-pressure machine wash) of the
heat exchange equipment (radiator, oil cooler, after-
cooler, fuel cooler, air conditioner condenser), main-
tain sufficient distance from the machine when per-
forming the work. If steam cleaning (high-pressure ma-
chine wash) is performed at close distance, there is a
danger that the internal fins of the heat exchange
equipment may be deformed, and this will cause early
clogging and breakage of the equipment.
6.
Visually check the rubber hose connected to the heat ex-
change equipment. Check the hose clamp for looseness
as well.
If the rubber hose is cracked or become fragile, ask your
Komatsu distributor for replacement.
If the hose clamp is loose, tighten it.
7.
Remove undercover (10) and blow out the mud, dirt, and
leaves to the outside.
8.
Push in cleaned nets (3) back to the original place and in-
stall it with nuts (2).
9.
Install bracket (5) with bolt (4).
10. Install undercover (10).
Opening and closing condenser
11. Open the door at the rear right of the machine and the en-
gine hood, and remove bolts (11) (10 places).
12. Lift up the condenser and move it to a place where you
can clean it.
13. After cleaning the condenser, return it and install bolts (11)
(10 places).
Tightening torque: 59 to 74 Nm{6.0 to 7.5 kgm}
14. When fixing air conditioner hose (A) with clip (B), match
the white tape of hose (A) with clip (B).
4-54
MAINTENANCE
Advertisement
Table of Contents
