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Filling and Checking
Before filling the cooling system, verify that all petcocks
are closed and all hose clamps are tight. Remove
pressure cap located on the top of the engine and fill with
the recommended coolant until level is just below
overflow tube opening. If a coolant recovery tank is
used, fill to just below the HOT (full) mark. Maintain
proper coolant level in coolant recovery tank. The COLD
(add) mark indicates full when cold and the HOT (full)
mark indicates full when hot. Coolant level should
always be between these marks. The coolant level can
be checked using the coolant recovery tank markings,
but it is recommended to periodically remove the
pressure cap and check coolant level.
WARNING
Hot coolant and steam.
Can cause severe injury or death.
Before removing pressure cap stop generator,
allow to cool and loosen pressure cap to relieve
pressure.
Hot coolant can cause severe injury or death. Allow
engine to cool and release pressure from cooling
system before opening pressure cap.
pressure, cover the pressure cap with a thick cloth then
turn it slowly counterclockwise to the first stop. After
pressure has been completely released and the engine
has cooled, remove cap. If generator set is equipped
with a coolant recovery tank, check coolant level at tank.
3-10 Scheduled Maintenance
Cooling Systems
For optimum protection, the cooling system should be
periodically drained, flushed, and refilled, see Service
Schedule. Open petcocks located at the radiator and
engine block and let the system completely drain.
Removal of the pressure cap will make draining easier.
Drain, clean, and flush coolant recovery tank, if used.
Chemical cleaners are available for badly rusted or
corroded
instructions. Flush system with clean water before filling
with recommended coolant.
The coolant system incorporates a pressurized cap(s)
to raise the boiling point of the coolant and make use of
higher
malfunction occurs, replace with same rating type of
cap. The pressure cap ratings are as follows:
10CCOZ Pressure Cap on Coolant Fill
To release
Flushing and Cleaning
cooling
system;
follow
Pressure Cap
operating
temperatures.
manufacturer' s
If
leakage
or
. . . . . . .
13psi
(88 kPa)
TP-5648 8/93
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Table of Contents
Troubleshooting
