Reassembly Procedure; Servicing Points - Komatsu 4D98 Series Shop Manual

4. Engine Body
(3)
Reassembly procedure:
Reverse order of the disassembly procedure.
98N(lO kgf)
(4) Servicing points
Point 1
Disassemble:
l
Loosen the mounting bolt while sup-
porting the alternator.
Do not tilt the alternator toward the
cylinder block in a haste since it
may damage the alternator or pinch
a finger.
Reassemble:
. The belt deflection shall be lo-15 mm
(7 - 9 mm for a new belt).
Reassemble:
l
Replace the belt with a new one if
cracked, worn or damaged.
l
Carefully prevent the belt from being
smeared with oil or grease.
Crankshaft pulley
V-belt tension
Adjust th
-7
Adjuster \\YE&
Alter&or
le V-belt tension
ing a bar.
&5-
Tension Adjustment
Point 2
Reassemble:
l
Check the thermostat function. (See 3.9 in Chapter 3 for the check procedure.)
Point 3
Reassemble:
l
Replace the fuel filter element with a new one.
Disassemble:
l
Cover the fuel pipe opening with tape to prevent intrusion of foreign matters.
Point 4
Reassemble:
l
Replace the oil filter with a new one.
l
After fully tightening the filter manually, retighten it with a filter wrench (see 11.1-6 in Chapter
11) by 3/4 turn.
Point 5
Disassemble:
l
Cover the fuel injection pipe and pump inlets and outlets with tape or the like to prevent
intrusion of foreign matters.
4-3