3-6 Scheduled Maintenance TP-5592 7/96
Lubrication System
Specifications
Engine oil selection is very important to a dieselengine.
Use of an unsuitable oil or neglecting anoil changemay
result in damage and a shorter engine life. Oil must
meet the American Petroleum Institute (API)
classification of CD, CC/CD, or CC. Figure 3-1 shows
the recommended Society of Automotive Engineers
(SAE) viscosity designation for given temperature
ranges.
S.A.E.
Service
Grade
°C
°F
--30 --20 --10 0 10 20 30 40
0 20 40 60 80 100
Operating Temperature
Recommended Value
Usable Limit
5W20
20W40
10W30
10W
20W
SAE 20
SAE 30
SAE 40
°C
°F
Figure 3-1. Engine Oil Selection
NOTE
Failure to observe these standards may cause
inadequate lubrication/oil pressure and cold-starting
difficulties.
Oil Check
Check the oil level in the crankcase daily or before each
start-up to ensure that the level is in the safe range. To
check the oil level, remove dipstick and wipe the end
clean, reinsert as far as possible, and remove. Level
should be between min and max marks on the dipstick
(Figure 3-2).
1
2
1. Min mark
2. Max mark
Figure 3-2. Oil Level Check
NOTE
Do not operate the set if the oil level is below the min
mark or above the max mark.
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