Hobart 6921 Series Operation And Maintenance Manual page 64

OM-2040 / Operation and Maintenance Manual
90D20 / Generator Sets
Important: T he above intervals are based on the use of diesel fuel containing max. 0.5% b. w. of sulphur
and Central European or similar climatic conditions. Periods should be cut by half for each of the
following heavy duty factors:
- Diesel fuel with more than 0.5% b.w. of sulphur.
- Permanent ambient temperatures above + 30 C or below - 10 C.
The generator set is equipped with an hourmeter to record actual engine operating time. The ideal time
to change oil is soon after a power delivery "run", when the engine is at operating temperature.
NOTE: If lubricating oil is drained immediately after the unit has been run for some time, most of the
sediment will be in suspension and will drain readily.
CAUTION
Do not use solvents as flushing oils in running engines.
Change the oil filter element each time the oil is changed.
Change oil as follows:
a. Remove bolted oil drain cover on bottom of air duct.
b. Provide a container for catching used oil. Capacity should be greater than 17 quarts.
c. Remove drain plug located in oil pan.
d. While oil is draining, proceed to change the oil filter element.See Para. 3, D, (5) below, for
instructions.
e. Clean the drain plug and install securely when engine oil has drained.
CAUTION
When refilling crankcase, to avoid possible future engine damage, always use
clean oil container and funnel.
f. Remove oil filter cap (Sect. 1-1, Fig. 4) and refill the crankcase with new, clean oil which
meets engine manufacturer's recommendations. [See Para. 3, D, (2)] above, or Deutz Diesel
Operator's Manual). See Fig. 3 below for engine oil capacities.
g. Install filler cap and check oil level on gage rod (Sect. 1-1 Fig. 4). The gage rod should
indicate over FULL mark.
Chapter 2-1
Page 6
Oil capacity (including filter)
Oil capacity (without filter)
Oil Capacities
Figure 3
17 quarts (16 liters)
15 quarts (14 liters)
February 28/94 Revised