Kubota ZD221, Operator'S Manual

Page: 60 / 95

43 PERIODIC SERVICE
ENGLISH
B
Checking and Cleaning Radiator Screen
to Prevent Overheating
To avoid personal injury:
A
Be sure to stop the engine and remove the key
before cleaning.
A
The air intake area must be clear of debris to prevent
the engine from overheating.
Daily or after every 5 hours of operation, check to be sure
the radiator screen and the radiator core are clean.
Dirt or chaff on the radiator screen or radiator core
decrease cooling performance.
1. Remove the radiator screen and the panel screen, and
remove all foreign material.
2. Remove the dust from between the fins and the tube.
3. Tighten the fan drive belt as necessary. For this, refer
to "EVERY 100 HOURS" in "PERIODIC SERVICE"
section.
4. If the scale forms in the tube, clean with the scale
inhibitor or its equivalent.
5. Each time the panel screen is covered with grass
during operation, rub it off the screen with the hand.
Check the radiator screen from time to time if grass
accumulates.
6. If the dust or chaff has accumulated inside of the
panel, remove the radiator screen and clean inside
completely.
After cleaning, replace the radiator screens properly.
A
When assembling the panel screen, be sure to fit it in
the runners.
B
Checking Tire Pressure
To avoid personal injury:
A
Do not attempt to mount a tire on a rim. This
should be done by a qualified person with the
proper equipment.
A
Always maintain the correct tire pressure.
Inflation pressure in front tires rises quickly
when using compressed air.
Do not inflate tires above the recommended
pressure shown in the Operator's Manual.
A
Do not use tires larger than specified.
Distillation
Temperature
s ( )
90% Point
Viscosity
Kinematic
cSt or
mm /s
at 40
Viscosity
saybolt,
SUS
at 100
Sulf
ur,
weig
ht
%
Copp
er
strip
Corro
sion
Ceta
ne
Num
ber
Min Max Min Max Min Max Max Max Min
282
(540)
338
(640)
1.9 4.1 32.6 40.1 0.50 No.3 40
(1) Panel screen
(2) Radiator screen