O.S. Engines FS-40S - Manual (Page 12)

4 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).
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.
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.
5 Plug wrench
Used for tightening glowplug.
The O.S. long plug wrench is available
as an optional accessory.
For tightening
glowplug
Battery leads
6 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.
7 Fuel tank
For installation in the model, a 120cc(4.2oz.)
for FS-26S, a 150cc(5oz.) for FS-40S tank is
suggested.
8 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
11