Ditch Witch RT120 - Manual (Page 182)

RT120 Operator’s Manual
Service - 181
500 Hour
Change Fuel Filters
Change fuel filters (shown) every 500 hours.
Change Hydraulic Fluid and Filter
Change hydraulic fluid and filter every 500 hours.
Change hydraulic fluid and filter every 250 hours
if jobsite temperature exceeds 100°F (38°C)
more than 50% of the time.
To change:
1. Remove drain plug (1).
2. Drain fluid and replace plug.
3. Change filter (2).
4. Add THF at fill (3).
Test Coolant Freeze Protection Level
With engine cool, test coolant freeze protection
level using a hydrometer or refractometer.
Recommended freeze protection level is -34°F
(-37°C). Adjust as needed.
If colder temperatures are expected, consult your
Ditch witch dealer or coolant supplier.
Use pre-diluted coolant to maintain proper freeze
protection.
IMPORTANT: See page 160 for information
on approved coolants.
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