5-2
In extremely dusty or dirty conditions, oil should be
changed more frequently. When adding oil between
changes, use the same brand as already in the engine.
Various brands of oil may not be compatible when mixed.
Refer to the Maintenance section of this manual for oil
change interval and procedures. Always change the oil
filter when changing the oil.
TABLE 5-1. SAE OIL VISCOSITY RECOMMENDATIONS
EXS-1147-1
FIGURE 5-2. FUEL SYSTEM
FS1777
ALWAYS RETURN
PRIMER LEVER TO
LOWEST POSITION
WORK TRANSFER PUMP
PRIMING LEVER UNTIL
FUEL FLOWS FROM
RETURN LINE FITTING ON
INJECTION PUMP
INJECTION
PUMP RETURN
LINE FITTING
DJB FUEL SYSTEM BLEEDING
DJE FUEL SYSTEM BLEEDING
FS1854C
WORK TRANSFER PUMP
PRIMING LEVER UNTIL FUEL
FLOWS FROM RETURN LINE
OF INJECTION PUMP
RETURN LINE
Recommended Fuel
Use ASTM 2-D or 1-D fuel, with a minimum Cetane num-
ber of 45*. Number 2 diesel fuel is usually most economi-
cal; however, use ASTM 1-D fuel during the following
conditions:
1. When ambient temperatures are below 32
°
F (0
°
C)
2. During long periods of light engine load or no load
NOTE: Fuels with Cetane numbers higher than 45 may be neces-
sary in higher altitudes or in extremely low ambient temperatures,
to prevent misfires.
Use fuel with a low sulfur content and a pour point (ability
to filter) of at least 10
°
F (6
°
C) below the lowest expected
ambient temperature. Keep fuel clean and protected
