O6108 08/01
SP4. AIR FILTER
1. Inspect air cleaner every 250 hours, replace
the fi lter every 750 hours, or yearly, whichever
comes fi rst.
2. After replacing element and cover, start engine
and check for air leaks.
NOTE: Make absolutely sure no impurities enter
the engine while changing the element. Do not
run the engine with the air cleaner removed.
SP5. V-BELTS
1. Check the tension and wear on the V-belts after
every 50 hours.
2. Use your thumb to press on the belt at the
midpoint between the crankshaft and alternator
pulleys. The tension is correct if the belts can be
depressed about 1/2" (14-17 mm) with 13 lb. (6 kg)
pressure.
3. Belts that operate in pairs should both be replaced
in pairs, even if only one of them needs to be
replaced.
SP6. VALVE CLEARANCES
1. Check the valve clearances after the fi rst
100 hours, and every 750 hours thereafter.
2. Shut off fuel supply. Turn off battery switch.
3. Remove the valve cover. Use a breaker bar with a
27 mm socket to rotate the crankshaft in a clock-
wise direction. Align the “
1.6 TOP
” mark on the
vibration damper with the pointer. In this posi-
tion No. 1 cylinder is at top dead center of the
compression stroke, and No. 6 cylinder's intake
valves will start to move. (See Fig. 10).
Figure 10.
15
4. Adjust the valve clearance for valves marked with
an “
X
” in Fig. 11.
5. Rotate the crankshaft in clockwise direction one
complete revolution until “
1.6 TOP
” is again at
the pointer and adjust the valve clearance for the
valves marked with an “
O
” in Fig. 11.
Cylinder No. 1 2 3 4 5 6
Intake Valve X X O X O O
Exhaust Valve X O X O X O
Figure 11
.
6. To adjust the valve clearance, loosen nut on
adjustment screw, insert feeler gauge between
the valve stem and rocker arm, and adjust the
clearance with the adjustment screw until the
thickness gauge slides with a slight drag. After the
clearance is properly adjusted, tighten the lock nut
to secure the adjustment screw using 29 to 36 foot
lbs. of torque (4-5 kgm).
7. Valves should be set cold with the following
clearances:
a. Intake Valves .013 in. (.33 mm).
b. Exhaust Valves .026 in. (.66 mm).
8. Rotate the engine one full revolution and adjust
valves with “
O
” to above clearances.
NOTE: The fi ring order is 1-5-3-6-2-4.
FUELS - GENERAL
1. Use only clean, high quality fuels of the following
specifi cations, as defi ned by ASTM designation
D975 for diesel fuels:
a. Use grade No. 2 diesel at ambient tempera-
tures above freezing 32
o
F (0
o
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. Use fuel having less than 1% sulphur (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.
c. Class D domestic fuels.
d. Class E, F, G or H industrial or marine fuels.
e. ASTM-D975-60T No. 4-D and higher
number fuels.
Servicing
Front
Summary of Contents for LUGGER L6108
Page 9: ...O6108 08 01 7 Notes...
Page 35: ...O6108 08 01 33 Wiring Diagrams DC Wiring Schematic Standard Ground NL 24V C 4417...
Page 36: ...O6108 08 01 34 Wiring Diagrams DC Wiring Schematic Standard Ground Marine 24V C 4419...
Page 37: ...O6108 08 01 35 Wiring Diagrams DC Wiring Schematic Isolated Ground Marine 24V C 4421...
Page 38: ...O6108 08 01 36 DC Wiring Schematic Standard Ground Marine 12V C 4430 Wiring Diagrams...
Page 39: ...O6108 08 01 37 Wiring Diagrams DC Wiring Schematic Isolated Ground Marine 12V C 4448...
