MacDon M155, Operator'S Manual

Page: 372 / 510

MAINTENANCE AND SERVICING
6. Close the heater shut-off valve (A) and disconnect
hose on heater side of valve.
7. Open valve to drain the block.
8. When system is drained, reattach hose on valve (A).
Figure 5.92: Heater Shut-Off Valve
9. Close radiator drain valve (A) at the bottom of the
engine side of the radiator lower tank. (Frame has
been removed from illustration for clarity.)
10. Fill system with clean water through the radiator and
replace radiator cap.
Figure 5.93: Radiator Drain Valve
11. Open heater shut-off valve (A).
12. Start engine and turn temperature control knob to
HIGH. Run engine until normal operating temperature
is reached.
13. Stop the engine and drain water out before rust or
sediment settles. Repeat coolant removal procedure.
14. Close drain valves and fi ll system with a solution of
clean water and a heavy duty radiator cleaner. Follow
instructions provided with cleaner.
15. After using the cleaner solution, fl ush system with
clean water again. Inspect radiator, hoses, and fi ttings
for leaks.
16. Close drain valves and fi ll system. Refer to
Adding
Coolant, page 357
.
17. Close the platform. Refer to
5.3.2 Closing Platforms
(Standard Position), page 310
.
18. Close the hood. Refer to
5.2.4 Closing Hood (Highest
Position), page 308
.
Figure 5.94: Heater Shut-Off Valve
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Revision A