Valtra Small A Series, Service Manual

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Oil recommendations according to outdoor temperature
When starting the tractor in a warm garage, oil meant for warmer areas may be used.
HT 60 / H32
10W-30
15W-40 / HT100 / H46
80W-90
-30°C
-20°C
-10°C
0°C
+10°C
+20°C
+30°C
+40°C
T G1
Quality requirements of engine fuel
Property
Specific 15°C, ISO 12185
Requirement
0,82...0,86 kg/litre
Test standard
ASTM D 4052, EN
Vis40°C, 445, ISO 31041 1,2...4,5 mm2/s ASTM D
Sulphur content
Cetane number 4737
Water content
max. 0,2 p-%
min. 51
max. 200 mg/kg
ASTM D 4294, ISO 8754
ASTM D
ASTM D 1744
The fuel must conform to the EN 590 standard.
Fuel
- The properties of light fuel oil that is only intended for
warming use do not meet the requirements of modern
diesel engines and cannot be used as fuel.
- In particular, distributor-type injector pumps require the
fuel to have sufficient lubricity, because they do not have
oil lubrication in the same way as typical multi-element
pumps. Adding oil to diesel fuel is not recommended, be
cause it causes carbon build-up, and if oil is mixed with
even a small amount of water it will clog the filter.
- Additionally, various fuel quality requirements imposed by
taxation and seasonal changes have to be taken into consi
deration.
Fuel storage
- Storing and distributing fuel must be arranged in condi
tions where no water or impurities can enter the storage
tanks. The storage tanks must be installed in a slanted
position, so that water and impurities are collected at the
opposite end from the suction pipe of the pump. The suc
tion pipe of the pump should not reach the bottom of the
tank.
- Water must be periodically drained from the tank in order
to prevent problems. Refueling at the same time the tank
is being refilled must be avoided without exception.
- When the tank is filled with winter-quality fuel in good
time, the engine is guaranteed to run flawlessly during the
cold season.
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Filter system
- The engine's standard filter system gives sufficient protec
tion for the injection system from impurities that can be
present in well-tended distribution systems.
- The control of distributor-type injection pumps is based
on internal pressure, which will drop if the fuel system is
clogged. If the pilot pressure drops too low, engine power
is reduced, smoke increased and starting becomes more
difficult. Additionally, water in the injection system will de
stroy it in a very short time. For this reason, the water trap
and the filters must always be serviced according to
the specified amount of running hours.
- It is also important always to use original Valtra (or Perkins) fuel filters.
They guarantee sufficient filtration, prevent
ing impurities from damaging the fuel system. There are
many cheap filter kits (so-called pirates) on the market,
with lower quality and performance in order to minimise the
cost. Among other things, the quality and amount of filter
paper are often insufficient. There are also often danger
ous defects in the basic structure that may cause
expensive damage even in a short period of time.
14.MAINTENANCE
Issue No.
1 02.12.2013
Model
A53/63/73
Code
140
Page
4