73
Check cooling water level…everyday
When engine is running, the cooling water level
should reach the lower surface of flume neck. If
the water level is lower than the lower surface,
add cooling water to water tank.
Check and adjust fan belt tension
Every 100 hours (the first check should be
after 50- hour operation)
Press the belt with thumb at the middle point between strap wheels and crank, if the press is
58.8N (6kg), the maximum flexibility should be 10mm.
Visually check the damage, crack, and abrasion of
belt. If there is any ill evidence, change the belt.
Clean radiator and oil cooler core
Exterior……every 250 hours
Interior……once per half year
z Open radiator repairing door and hood
cover.
z Use compressed air (less than 0.2MP) or
water to clean or wash the radiator of oil
cooler.
Lax fan belt may cause insufficient
power of battery, engine overheat, and
quick & abnormal belt abrasion. On the
other hand, over tighten the belt will
damage bearing and belt.
Before the system cools down, don’t
loosen water filler cover ① of
radiator. Screw off the cover slowly,
release all the pressure before
z Don’t check, test, and replace belt
when engine is running.
z Mount new belt, run engine at low
revs for 3-5 minutes, adjust tension
again to ensure the new belt is
perched correctly.
z Use low pressure compress air (less
than 0.2MP) to do clean work, be aware
of flying claps, wear individual
protect equipments, including eye
protection items.
z When working in the dusty
environment, check the sundries and
blocking of radiator, oil cooler and
condenser core.
FIG. 4-18
①
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