Northern Lights M65C13, Operator'S Manual

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Lubrication&Maintenance/2000 Hour/24 Month
RG19661,00003D1 -19-28JAN13-2/2
3. Open engine block drain valve (A) on left side of
engine. Drain all coolant from engine block.
4. Open heat exchanger or top tank drain valve. Drain all
coolant from heat exchanger or top tank.
5. Remove thermostats at this time, if not previously
done. Install cover (without thermostats) using old
gasket and tighten cap screws to 47 N·m (35 lb-ft).
6. Test thermostat opening temperature. (See Inspecting
Thermostats And Testing Opening Temperature
following in this section).
7. Close all drain valves after coolant has drained.
CAUTION: Do not run engine longer than 10
minutes. Doing so may cause engine to overheat,
causing burns when cooling system is draining.
8. Fill the cooling system with clean water. Run the engine
about 10 minutes to stir up possible rust or sediment.
9. Stop engine, pull off lower cooling system hose and
remove heat exchanger or top tank cap. Immediately
drain the water from system before rust and sediment
settle.
10. After draining water, close drain valves. Reinstall cap,
lower cooling system hose and clamp. Fill the cooling
system with clean water and a heavy duty cooling
system cleaner such as Fleetguard® RESTORE™
and RESTORE PLUS™.
11. After cleaning the cooling system, drain cleaner and fill
with water to flush the system. Run the engine about
10 minutes, remove heat exchanger or top tank cap
and pull off lower cooling system hose to drain out
flushing water.
12. Close all drain valves. Reinstall hoses and tighten
clamps securely. Install thermostats using a new
gasket.
RG8019A
—UN—19JUN00
Engine Block Drain Valve
A—Engine Block Drain Valve
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