SECTION III. OPERATION UNDER UNUSUAL CONDITIONS
2-11. Cold Weather Operation
a. Starting Aid Pressurized Cylinder (fig. 2-40).
(1) All craft use the same type starting aid.
On hull numbers 8500 thru 8519 the starting aid can be
actuated from the pilot house or in the engine room. On
hull numbers 8520 thru 8560 and 8580 thru 8618 the
starting aid cylinders are clamped to overhead brackets
in the engine room. They must be removed from the
bracket and individually applied to prime each engine.
(2) Use the starting aid as follows:
(a) Pull out knob for one-or two-seconds (below
zero hold 3 seconds).
(b) Wait 3 seconds and then push starter button.
Do not actuate the starting aid more than once with the
OVER-LOADING THE ENGINE AIR BOX
WITH THIS HIGH VOLATILE FLUID
Do not crank the engine more than 30
seconds at a time when using an electric
starting motor. Always allow two minute
Figure 2-40. Starting aid.
intervals between cranking attempts to allow
the starting motor to cool.
Never use a blow torch or other similar
means for heating fuel or lubricating oil lines.
(1) General. Keep engine compartment as warm as
possible without shutting off ventilation completely.
Test steering system
thoroughly by moving steering wheel from left to right.
Turn steering wheel slowly at first to loosen any ice that
(a) Keep batteries fully charged to prevent
may have formed between the hull and rudders at
(b) Check specific gravity and adjust to suit
particular conditions (TM 9-6140-200-15).
d. Hull and Fittings.
(c) Check batteries for correct terminal voltage.
It may be necessary to add an additional battery to start
(1) Keep caps installed on all hose connections,
the engine. Disconnect additional battery, if used, as
except when filling.
soon as engine has started.
(3) Cooling system. Add antifreeze to engine fresh
(2) Remove ice from ladders and passage ways on
water cooling system to prevent freezing (para 4-2).
(4) Lubricating oil system. Refer to L0551905-217-
12/3 for instructions concerning lubrication of engines
e. Navigating Lights and Horn. Ice may form on any
during operation in cold weather.
of these units and prevent proper operation. Carefully
remove ice from unit.