JLG 1100S Service Manual - Manual (Page 148)

SECTION 3 - CHASSIS & TURNTABLE
3-106 – JLG Lift – 3121256
PLANT OIL
PURE PLANT OILS (E.G. RAPE SEED OIL, SOY OIL, PALM OIL) ARE
NOT CLASSIFIED AS BIO-DIESEL AND EXHIBIT PROBLEMATICAL
PROPERTIES FOR DIESEL ENGINE OPERATION (STRONG TENDENCY
TO COKE, RISK OF PISTON SEIZURE, EXTREMELY HIGH VISCOSITY,
POOR EVAPORATION BEHAVIOR.
The conversion of DEUTZ engines to rape seed oil fuel
operation with conversion kits and modified tanks systems
of various manufacturers is not allowed and leads to loss
of warranty rights.
Biological Contamination In Fuels
SYMPTOMS
The following symptoms may indicate that a fuel tank is
contaminated by micro-organisms:
• Internal tank corrosion,
• Filter blockage and the associated loss of power due to
gel-like deposits on the fuel filter (especially after long
standstills)
CAUSE
Micro-organisms (bacteria, yeasts, funguses) can form bio-
sludge under unfavorable conditions (favoured particularly
by heat and water).
Penetration by water is usually caused by condensation of
the water in the air. Water does not dissolve in fuel so that
the penetrating water collects at the bottom of the tank. The
bacteria and funguses grow in the watery phase, at the
phase boundary to the fuel phase, from which they draw
their nutrition. There is an increased risk especially with bio-
diesel (FAME).
PREVENTIVE MEASURES
• Keep the storage tank clean, regular cleaning of the
tank by specialist companies
• Installation of fuel pre-filters with water traps, especially
in countries with frequently fluctuating fuel qualities and
high percentage of water.
If the fuel system and storage tank have already been
attacked by micro-organisms. The biocide must be dosed
according to the manufacturer's specifications.
• Avoid direct exposure of the storage tank to sunlight
• Use smaller storage tanks with corresponding low
dwell times of the stored fuel
FUEL ADDITIVES
The use of fuel additives is not permitted. The flow improv-
ers mentioned above are an exception. Use of unsuitable
additives will result in loss of warranty.