jcb RTFL 926 Operator's Manual page 113

Sulphur Content
High sulphur content can cause engine wear. (High
sulphur fuel is not normally found in North America,
Europe or Australia.) If you have to use high sulphur fuel
you must change the engine oil more frequently.
K Table 3. Sulphur Content ( T
Low sulphur fuels must have the appropriate fuel lubricity
additives, these lubricity improvers must not create
residual deposits that block the fuel system, e.g. injectors,
filters etc. Contact your fuel Supplier.
!M
CAUTION
A combination of water and sulphur will have a
corrosive chemical effect on fuel injection equipment.
It is essential that water is eradicated from the fuel
system when high sulphur fuels are used.
ENG-3-2
Table 3. Sulphur Content
Percentage of sulphur in
the fuel (%)
Less than 0.5
0.5 to 1.0
More than 1.0
103
T3-032
103).
Oil Change Interval
Normal
0.75 of normal
0.50 of normal
9811/5700-7
Fluids, Lubricants and Capacities
Effects of Fuel Contaminates
The effect of dirt, water and other contaminants in diesel
can be disastrous for injection equipment:
– Dirt - A severely damaging contaminant. Finely
machined and mated surfaces such as delivery
valves and distributor rotors are susceptible to the
abrasive nature of dirt particles - increased wear will
almost inevitably lead to greater leakage, uneven
running and poor fuel delivery.
– Water - Water can enter fuel through poor storage or
careless handling,
condense in fuel tanks. The smallest amounts of
water can result in effects that are just as disastrous
to the fuel injection pump as dirt, causing rapid wear,
corrosion and in severe cases, even seizure. It is
vitally important that water is prevented from reaching
the fuel injection equipment. The filter/water trap must
be drained regularly.
– Wax - Wax is precipitated from diesel when the
ambient temperature falls below that of the fuel's
cloud point, causing a restriction in fuel flow resulting
in rough engine running. Special winter fuels may be
available for engine operation at temperatures below
0°C (32°F). These fuels have a lower viscosity and
limit wax formation.
Routine Maintenance
and will almost inevitably
103
T3-033