O.S. Engines Rotary 49PI - Manual (Page 13)

Battery leads
12V Battery
Starter
Battery leads
These are used to conduct current
from the battery to the glowplug.
Basically, two leads, with clips, are
required, but, for greater conve-
nience, twin leads with special glowplug connectors,
as shown on the right, are commercially available.
Fuel tank
For installation in the model, is 240cc(8.5oz.) tank, is
suggested.
Fuel bottle or pump
For filling the fuel tank, a simple,
polyethylene "squeeze" bottle, with
a suitable spout,is all that is
required. Alternatively, one of the
purpose-made manual or electric
fuel pumps may be used to transfer
fuel directly from your fuel
container to the fuel tank.
Fuel bulb
Manual Electric
Fuel pumps
Resistance coil
(nichrome wire)
Adjust applied voltage by changing the position of clip on
resistance coil until glowplug element is glowing bright red.
Battery leads
Raise
voltage to
increase
brightness.
Lower voltage to
reduce brightness.
Warning (Very hot)
Never touch the nichrome wire while the battery is
connected.
1.5 volt heavy-duty
dry battery or 2 volt rechargeable
lead-acid cell (at least 5Ah)
If a 2-volt cell is employed,
use a resistance wire, as
shown, to reduce applied
voltage, otherwise element
will overheat and burn out.
Glowplug battery
The power source for heating the glowplug may be
either a large heavy-duty 1.5volt dry cell, or preferably,
a 2-volt rechargeable lead-acid cell (accumulator).
An electric starter is recommended
for starting.
Electric starter and starter battery
12