O.S. Engines 37SZ-H - Manual (Page 5)

8
NOTES WHEN APPLYING AN ELECTRIC STARTER
Do not over-prime. This could cause
hydraulic lock and damage the
engine on application of the electric
starter.
If over-primed, remove glowplug,
close needle-valve and apply starter
to pump out surplus fuel. Cover the
head with a rag to prevent pumped
out fuel getting into your eyes.
9
This is a high performance engine
designed for small-sized radio-
controlled helicopters.
Since the mounting bolt pattern of the
engine as well as silencer is the same as
those of the 32SX-H, it can be directly
replaced with the 32SX-H and most of
other 32-39 size engines. This powerful
engine is suitable for sport flight as well
as 3D flight.
INTRODUCTION
STANDARD ACCESSOIES
Glow Plug No.8
Instruction manual
Items necessary for starting
Tools, accessories, etc.The following items are
necessary for operating the engine.
BEFORE STARTING
Glow Plug
O.S. No.8 is supplied with the engine.
Battery leads
Glowplug battery
The power source for heating the glowplug may be
either a large heavy-duty 1.5volt dry cell, Ni-cd battery
or glowplug Igniter.
1.5 volt dry cell
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.
Battery leads
glowplug Igniter
With some models, needle interferes the
body and working on the body to avoid
this would be required.