Removal And Installation Of Engine Front Seal - Komatsu ecot3 PC300LC-8 Shop Manual

50 Disassembly and assembly
Removal and installation of
engine front seal
Special tools
Part number
A 2 795-799-8120 Installer
Removal
1. Remove the radiator assembly and hydraulic
oil cooler assembly. For details, see "Removal
and installation of radiator assembly" and
"Removal and installation of hydraulic oil
cooler assembly".
2. Remove radiator fan (1).
3. Loosen tensioner (2) to remove fan belt (3).
a Insert a wrench to the portion (A) (width
across flats T 12.7 mm) of the tensioner
assembly (2), and rotate it to the winding-
up direction (a).
k
Make sure that the wrench is secured
at the portion (A) before rotating it.
(The spring of the tensioner assembly
(2) is strong. If the wrench is loosely
inserted, the wrench may accidentally
come off while being rotated and it is
extremely dangerous.)
k
After removing the fan belt (3), return
the tensioner assembly (2) slowly with
care.
k
Be careful not to get your fingers
caught between the pulley and fan belt
(3) during work.
PC300, 350-8
Part name
q 1
[*1]
4. Loosen tensioner (4) to remove alternator belt
(5).
1
a Following the same procedure for removal
of fan belt (3), insert the wrench to the por-
tion (B) of tensioner assembly (4), and
rotate it to the winding-up direction (a).
k
As described in step 3, carefully per-
form the work.
5. Remove pulley (6).
6. Remove vibration damper (7).
SEN02636-03
[*2]
[*3]
5