Page 11 of 12
CAUTIONS
Do not operate your EWP
®
dry as seal damage may occur and your
warranty may be jeopardised.
Use of the EWP
®
after removing the pump impeller or deleting the
mechanical pump pulley from the belt system will increase maximum engine
speed. Running an engine at higher than normal speeds may affect other
engine components.
Engine temperature must be monitored closely at all times more especially
after installation and until your EWP
®
operational procedures have been
confirmed.
The EWP
®
can handle most rust particles, shale, and sludge found in cooling
systems but large rust particles should be flushed from the radiator before
the EWP
®
is installed.
Some engines may require special bleeding procedures to remove all air
from their cooling system. The EWP
®
must be completely full of coolant at
all times to achieve the life expectations of your EWP
®
and to ensure your
warranty is not jeopardised.
Do not use the vehicle’s engine management system or wiring connected to
the vehicle’s engine management system (ECU) as an ignition source as it
may cause failure of the management system and/or the electrical system.
The ignition source for your EWP
®
and EWP
®
/Fan Digital Controller Combo Kit
must be a steady positive supply of 12-14V or 24-27V DC.
Vehicles with both heater circuit inlet (return) and outlet ports in the
mechanical pump housing will suffer reduced heater performance unless the
heater returns position is relocated.
The engine cooling system must use coolant as specified by the vehicle’s
manufacturer.
The EWP
®
is a ‘circulation’ pump ideal for most ‘closed circuit’ pressurised
automotive cooling systems.
The EWP
®
is not a ‘self-priming’ water pump and therefore will not produce
its full flow without a positive ‘head’ in an ‘open’ system.
The EWP
®
impeller tip clearance has been designed to achieve maximum
efficiency and is therefore very close to the housing. When new and bedding
in, the impellor may touch the internal wall of the EWP
®
housing causing a
slight noise. This sound will cease within a very short time after the impeller
has bed-in.
Waterless coolants increase the load on an EWP and may reduce pump life.
These installation instructions will suit most vehicles but there are
circumstances surrounding some engine designs, environments, and
the nature of motoring involved, which may require other installation
arrangements not outlined here. Frequently Asked Questions are
listed on our website www.daviescraig.com.au Davies Craig Pty Ltd
appreciates customer feedback. Emails can be directed to
info@daviescraig.com.au or telephone +61 (0) 3 9369 1234.
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