TRUCK SERVICE MANUAL
ENGINE
Maintain the Fleet guard DCA Water Filter on the engine.
FUEL OIL
The filter by-passes a small amount of coolant from the
system via a filtering and treating element which must be
Cummins Diesel Engines have been developed to take
replaced periodically.
advantage of the high energy content and generally
lower cost of No. 2 Diesel Fuels. Experience has shown
1. In summer, with no antifreeze, fill' system with
that a Cummins Diesel Engine will also operate
water.
satisfactorily on No. 1 fuels or other fuels within the
2. In winter, select an antifreeze, all except Dow
following specifications.
there 209 are compatible with DCA, use with water as
required by
Recommended Fuel Oil Properties
temperature.
Viscosity
Centistokes 1.4 to 5.8 @ 100
Note: Some antifreezes also contain anti-leak additives
(ASTM D-445)
deg. F (30 to 45 SUS)
such as inert inorganic fibers, polymer particles or ginger
Cetane Number
40 minimum except in cold
root, these antifreezes should not be used in conjunction
(ASTM D-613)
weather or in service with
with the water filter. The filter element will filter out the
prolonged idle, a higher
additives and/or become clogged and ineffective.
cetane number is desirable.
Sulfur Content
Not to exceed 1% by weight.
3. Install or replace DCA Water Filter element as
(ASTM D-129 or 1552)
follows and as recommended in Cummins Engine
Water and Sediment Not to exceed 0.1% by
Operation and Maintenance Manuals.
(ASTM D-1796)
weight.
Carbon Residue
Not to exceed 0.25% by
Engines Equipped With
(Ransbottom ASTM weight on 10% residue.
DCA Water Filters
D-524 or D-189)
Flash Point
At least 125 deg for legal
1. New engines shipped from the Factory are
(ASTM D-93)
temperature if higher than
equipped with water filters containing a "DCA pre-
125 deg F.
charge" element. See Table 18-4.
This element is
Gravity
30 to 42 deg A.P.I at 60 deg.
compatible with plain water or all permanent-type
(ASTM D-287)
F (0.815 to 0.875 sp gr.)
antifreezes except Dowtherm 209.
Pour Point
Below lowest temperature
(ASTM D-97)
expected.
Table 18-4: Spin-On Type D C A Water Filter
Active Sulfur-Copper Not to exceed No 2 rating
Corresponding
Strip Corrosion
after 3 hours at 122 deg F.
Cooling
DCA
DCA
Obsolete
(ASTM D-130)
System
Pre-charge
Service
Chromate
Ash
Not to exceed 0.02% by
U.S. Gal. Element
Element
Element
(ASTM D-482)
weight.
0 to 8
299082
299080
209604
Distillation
The distillation curve should
8 to 1 5
299083
299080
209604
(ASTM D-86)
be smooth and continuous.
15 to 30
299084
299080
209605
At least 90% of the fuel
30 to 60 (2) 299084 (2) 299080 (2) 209605
should evaporate at less than
675 deg F. All of the fuel
2. At the first "B" Check (oil change period) the
should evaporate at less than
DCA Precharge element should be changed to DCA
725 deg F.
Service Element. See Table 184.
3. Replace the DCA Service Element at each
Coolant
succeeding "B" Check except under the following
conditions:
Water should be clean and free of any corrosive
a. If makeup coolant must be added between
chemicals such as chloride, sulphates and acids. It
element changes, use coolant from a pretreated supply,
should be kept
as stated In "MakeUp Coolant Specifications", in Group 2
slightly alkaline with pH value in range of 8.0 to 9.5. Any
of Operation and Maintenance Manual.
water which is suitable for drinking can be treated as
b. Each time system is drained revert back to
described in the following paragraphs for use in an
precharge element.
engine.
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