5 Maintenance
5.6 Check and maintenance every 200hours
Carry out the following inspection and
maintenance every 50h.
■
Check and adjusting of tension of fan belt
1. Press the central part of driving belt wheel of
fan and DC generator belt wheel with force of
10kgf and measure the deflection A.
2. If the deflection exceeds standard value,
loosen 2 bolts on DC generator. Move the DC
generator and adjust tension of its belt.
Deflection of fan belt wheel A……Standard
value
：
appro.7
～
9mm/58.8
～
68.6N
（
6
～
7kgf
）
3. Check each belt wheel, type V slot and type V
belt for any damages; particularly check type V
belt to see if it contacts with bottom of type V slot.
4. Belts become long loosing adjustment function
or have any cut wound or cracks; in case of any,
please replace in time.
Important
* In case of working under weak tension of belt
and continuous operating of the machine, the belt
may slip to cause performance reduction of the
engine and shorten its service life. Therefore,
check and adjust belt tension.
* Stop the engine if charging lamp illuminates just
caused by broken belt.
■
Check radiator pipe
1. Tighten loosened ring clamp; in case of water
leakage, tighten the ring clamp.
2. Replace the pipe in case of expansion,
stiffening or cracks, and tighten the ring clamp.
Ring clamp
Rubber pipe on radiator
■
Cleaning and check off air filter element
Open engine cover, remove dust shield and take
out the element. Clean the element and dust
shield as well as internal surface of casing.
Dust shield
◆
Cleaning method
Blow and clean exterior of element with dry
compressed air [below 203kPa
（
2.1kgf/cm
2
）
];
blow from interior to exterior to clean all dust and
dirt. Wear protection glasses to prevent dust
entering your eyes, especially working in places
with many sands. Carry out cleaning and check
as early as possible.
5.7 Check and maintenance every 250 hours
Carry out the following inspection and
maintenance every 50h.
■
Check and tightening of nuts on tyre hubs
Refer to [Replacement of tyre] (page 35).
■
Replacement of engine oil
（
50h for initial time
）
1. Remove the drainage bolts on engine oil tray at
bottom of engine, put them on lower left of rear
support and drain out the engine oil.
2. Tighten each bolt after oil drainage.
3. Fill certain fresh engine oil through filling
opening.
4. Keep the engine racing first and check oil level
with oil gauge about 5 min after stopping racing.
Element
Casing
31
Summary of Contents for KDD03
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