Northern Lights OM150C12 Operator's Manual - page 17
OM150C12 11/11
15
FUELS - GENERAL
1. Use only clean, high quality fuels of the following
specifications, as defined by ASTM designation
D975 for diesel fuels:
a. Use Grade No. 2 diesel at ambient temperatures
above freezing 30°F (0°C).
b. Use Grade No.1 at ambient temperatures below
freezing and for all temperatures at an altitude of
above 5,500 ft. (1500 meters).
2. Sulphur content should not exceed 0.5% (preferably
less than 0.5%).
3. The cetane number should be a minimum of 45.
4. DO NOT use these unsuitable grades of fuel:
a. Domestic heating oils, all types.
b. Class B engine, Class D domestic fuels.
c. Class E, F, G or H industrial or marine fuels.
e. ASTM-D975-60T No. 4-D and higher number
fuels or JP4.
5. Storing fuel:
a. Keep dirt, scale, water and other foreign matter
out of fuel.
b. Avoid storing fuel for long periods of time.
c. Fill the fuel tank at the end of each day’s
operation. This will reduce condensation.
6. Biodiesel:
Biodiesel involves the transesterification of vegeta-
ble oils or animal fats. Mainly in the U.S. soybean
methyl ester is used (SME), but in Europe mainly
rapeseed (canola) methyl ester is made (RME),
and in Asia palm methyl ester is made (PME).
100% biodiesel (B100) is made in compliance with
ASTM D6751 or EN14214 (EU) specifications.
Biodiesel may be used in a 5% blend (5% biodiesel/
95% diesel) from a BQ-9000 accredited producer.
20% biodiesel blends can only be used if they meet
ASTM D6751 or EN14214 (EU) specifications. A
2% reduction in power and a 3% reduction in fuel
economy can be expected using a 20% blend, and a
fuel conditioner is recommended. Biodiesel blends
must be used within 90 days of their manufacture.
Oil level, leaking, microbial growth, plugging, and com-
ponent degradation all must be checked more frequently
using biodiesel blends. Request a certificate of analysis
from an approved biodiesel fuel distributor to make sure
the blend meets specifications.
NOTE: Using raw pressed or partially refined veg-
etable oils or recycled greases as fuel (which have not
been through transesterification) could cause engine
failure.
SP7. CRANKSHAFT VIBRATION DAMPER
1. Remove belts.
2. Try to turn the vibration damper in both directions while
grasping it with both hands. If rotation can be felt, the
damper is defective and should be replaced.
NOTE: The vibration damper assembly should be
replaced every 4500 hours or 60 months, whichever
occurs first, as the vibration damper assembly is not
repairable.
3. Place a dial indicator
(Figure 10)
so that the probe con-
tacts the damper’s outer diameter in order to check the
damper radial runout.
4. Make sure the engine is at operating temperature, then
rotate the crankshaft using the JDE81-4, or the JDE83
Flywheel Turning Tool.
5. If the runout reading exceeds the below
specification, replace the vibration damper.
Vibration Damper Maximum
Radial Runout ..........................1.50 mm (0.060 in.)
Servicing
Reproduced by permission of Deere & Company, c2004. Deere & Company. All rights
reserved.
RG8018
Figure 9