Bleeding The Fuel System - Clarke C18H Instruction Manual

reliability and efficiency for standby fire pump
engines. Fuel maintenance and testing should
begin the day of installation and first fill.
A.8.3.4.2 Where environmental or fuel quality
conditions result in degradation of the fuel
while stored in the supply tank, from items
such as water,
particulates, or destabilization, active fuel
maintenance systems permanently installed on
the fuel storage tanks have proven to be
successful at maintaining fuel quality. An
active fuel maintenance system will maintain
the fuel quality in the tank, therefore
preventing the fuel from going through
possible cycles of degradation, risking engine
reliability, and then requiring reconditioning.
3.1.2

Bleeding the Fuel System

CAUTION: Escaping fluid under pressure can
penetrate the skin causing serious injury. Relieve
pressure before disconnecting fuel or other lines.
Tighten all connections before applying pressure.
Keep hands and body away from pinholes and
nozzles, which eject fluids under high pressure. Use
a piece of cardboard or paper to search for leaks.
Do not use your hand.
If ANY fluid is injected into the skin, it must be
surgically removed within a few hours by a doctor
familiar with this type injury or gangrene may
result. Ref figure #10
Figure #10
IMPORTANT: Fuel filter must be replaced according
to maintenance schedule (See Section 4.0) or when
trouble code indicates plugged filter (fuel supply
pressure moderately/extremely low).
micro-organisms and
3.1.2.1 Priming C18H Engine Series when secondary
filter has been changed:
1) Open the air purge screw (2) three full turns.
Do not remove screw. The air purge screw is
located on the secondary filter base.
Figure #12.
2) Start the engine. The engine should start and
run smoothly.
more than 30 seconds continuously. Allow the
starter motor to rest for 2 minutes after 30
seconds of cranking. You may use the hand
priming pump (1), in lieu of starting the
engine. The priming pump is located on the
primary filter base on your Clarke C18H
engine. See Figure #11.
3) While the engine is running, monitor the air
purge screw (2). When a small drop of fuel
appears at the threads, turn and tighten air
purge screw.
change as the screw is tightened, this is
normal.
4) Clean residual
components.
30
Never crank the engine for
The tone of the engine may
fuel from all
Figure #11
See
engine