RT80 Operator’s Manual Service - 129
2000 Hour
2000 Hour
Change Engine Coolant
Drain cooling system at drain (3) every two years
or 2000 hours. Add DEAC at fill (1) according to
instructions below until fluid level is visible in sight
glass (2).
To fill
1. Remove fill cap (1) on expansion tank.
2. Add coolant at expansion tank until fluid is visible in sight glass (2).
3. Run engine with thermostat open (>195°F/90°C engine temperature) for 10 minutes.
4. Stop engine and let cool.
5. Add coolant at expansion tank until visible in sight glass.
6. Install fill cap on expansion tank.
Location Task Notes
TRACTOR Change engine coolant DEAC
NOTICE:
• The use of non-approved coolant may lead
to engine damage or premature engine
failure and will void engine warranty.
• See “Approved Coolant” on page 109 for
list of approved coolants.
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