MAINTENANCE PROCEDURE
200
4.9.3.g
CHECK AND ADJUST COOLING FAN BELT TENSION
CHECKING
1.
The deflection should be approx. 9 to 13 mm (0.355 to 0.5
in.) when pressed at a point midway between the crank-
shaft pulley and the fan pulley with a finger pressure of
approx. 98 N (10 kgf).
NOTE
• As a guideline, there is no problem if the deflection is ap-
prox. 10 mm (0.5 in).
ADJUSTMENT
WARNING
• When this maintenance is carried out, it is necessary to open (tilt) the floor.
Before starting the operation to open the floor refer to the explanation for each part in Section "3.2.12
METHOD OF OPENING (TILTING) FLOOR" when carrying out the operation. Or ask your Komatsu Dealer
to carry out the maintenance.
• Immediately after the engine is stopped, the parts and oil are at a high temperature, and will cause
burns. Wait for the temperature to go down before starting the operation.
• Prepare a pinch bar.
• Prepare a wooden block.
1.
When opening (tilting) the floor, see Section "3.2.12
METHOD OF OPENING (TILTING) FLOOR" - " When
opening (tilt open)" for details.
2.
Insert a bar between alternator (1) and the cylinder block
to fix alternator (1) in position. When fixing alternator (1)
in position, insert a wooden block between the bar and al-
ternator (1) to prevent any damage to the alternator.
3.
Loosen alternator adjustment bolt (2) and mounting bolts
(3).
4.
Move alternator (1) to adjust so that the belt tension is ap-
prox. 7 to 10 mm (0.276 to 0.4 in.) when pressed at a
point midway between the alternator pulley and the fan
pulley with a finger pressure of approx. 98 N (10 kgf).
5.
Tighten adjustment bolt (2), then tighten mounting bolts
(3) to secure alternator (1) in position.
6.
Check for damage to the pulleys, and wear of the V-
groove and V-belt. Be particularly careful to check that the
V-belt is not in contact with the bottom of the V-groove.
7.
If the belt is stretched, leaving no allowance for adjust-
ment, or if it is cut or cracked, contact your Komatsu Deal-
er for replacement.
8.
After completing the adjustment, close the floor. For de-
tails, see Section "3.2.12 METHOD OF OPENING (TILT-
ING) FLOOR" - " When closing (tilt close)".
Содержание 15001
Страница 2: ......
Страница 18: ...16 PAGE INTENTIONALLY LEFT BLANK ...
Страница 19: ...SAFETY AND ACCIDENT PREVENTION 17 ...
Страница 54: ...52 PAGE INTENTIONALLY LEFT BLANK ...
Страница 55: ...THE MACHINE AND ITS OPERATIONS 53 ...
Страница 156: ...154 PAGE INTENTIONALLY LEFT BLANK ...
Страница 157: ...MAINTENANCE 155 ...
Страница 207: ...TECHNICAL SPECIFICATIONS 205 ...
Страница 216: ...LIFTING CAPACITIES 214 PAGE INTENTIONALLY LEFT BLANK ...
Страница 217: ...AUTHORISED OPTIONAL EQUIPMENT 215 ...
Страница 232: ...230 PAGE INTENTIONALLY LEFT BLANK ...
Страница 233: ......
Страница 234: ... 2005 KOMATSU UTILITY EUROPE S p A All Rights Reserved Printed in Europe ...