Page 19 of 49
which is not part of the original supply
specification.
5a) Heat Exchanger Cooling: The water supply
for coolant is available again without
restriction.
5b) Radiator Cooling: The air supply for cooling
is available again without restriction.
When engine is running make sure that the coolant
temperature and oil pressure raw cooling water flow
are within the limits specified on the relevant
Installation & Operation Data (see Page 5).
If the coolant temperature is excessive, check:
a.
Cooling loop strainers
b.
Proper functioning of thermostat
c.
Condition of heat exchanger tube
bundle
3.0 ENGINE SYSTEMS
3.1
FUEL SYSTEM
3.1.1
Diesel Fuel Specification
All diesel fire pump drivers manufactured by Clarke
are designed, tested and warranted for use only with
No. 2-D Diesel Fuel conforming to ASTM
International
D-975-11b
or
British
Standard
BS2869:2010+A1:2011 Fuels oils for agricultural,
domestic and industrial engines and boilers -
Specification.
Although the above referenced fuel specifications
allow limited amounts of Biodiesel, 100% petroleum
fuel is preferred and should be used whenever
possible. Biodiesel in any amount greater than that
allowed by the above referenced specifications
should not be used. The use of fuels not referenced
above, or Biodiesel in amounts greater than allowed
in the above referenced specifications, may affect
performance and reliability, and may result in a non-
warrantable engine condition.
To insure engine reliability and performance, the fuel
provided for Clarke fire pump drivers must be
maintained in a quality condition. Refer to NFPA 25
2014, reprint provided below, for guidance to the
minimum requirements for fuel maintenance for all
Clarke fire pump engine installations.
The following is reprinted from the “NFPA 25 2014
Standard
for
the
Inspection,
Testing,
and
maintenance of Water-Based Fire Protection
Systems,” Copyright © 2013 National Fire
Protection Association®. All Rights Reserved.
8.3.4 Diesel Fuel Testing and Maintenance
8.3.4.1 Diesel fuel shall be tested for
degradation no less than annually.
8.3.4.1.1* Fuel degradation testing shall
comply with ASTM D975-11b Standard
Specification for Diesel Fuel Oils, or ASTM
D6751 -11b Standard Specification for
Biodiesel Fuel Blend Stock (B100) for
Middle Distillate Fuels as approved by the
engine manufacturer, using ASTM D 7462 -
11 Standard Test Method for Oxidation
Stability of Biodiesel (B100) and Blends of
Biodiesel with Middle Distillate Petroleum
Fuel (Accelerated Method).
8.3.4.2* If diesel fuel is found to be deficient
in the testing required in 8.3.4.1.1, the fuel
shall be reconditioned or replaced, the
supply tank shall be cleaned internally, and
the engine fuel filter(s) shall be changed.
8.3.4.2.1 After the restoration of the fuel and
tank in 8.3.4.2, the fuel shall be retested each
6 months until experience indicates the fuel
can be stored for a minimum of one year
without degradation beyond that allowed in
8.3.4.1.1
8.3.4.3
When
provided,
active
fuel
maintenance systems shall be listed for fire
pump service.
8.3.4.3.1
Maintenance
of
active
fuel
maintenance systems shall be in accordance
with the manufacturer’s recommendations.
8.3.4.3.2
Maintenance
of
active
fuel
maintenance systems shall be performed at a
minimum annual frequency for any portion of
the system that the manufacturer does not
provide
a
recommended
maintenance
frequency.
8.3.4.3.3 Fuel additives shall be used and
maintained in accordance with the active fuel
maintenance
system
manufacturer’s
recommendations.
