PERIODIC MAINTENANCE
5-22
TNV IDI Service Manual
Periodic Maintenance Procedures
CAUTION
COOLANT HAZARD!
• Wear eye protection
and rubber gloves
when you handle long
life or extended life
engine coolant. If
contact with the eyes
or skin should occur,
flush eyes and wash
immediately with
clean water.
• Failure to comply may result in minor or
moderate injury.
NOTICE
• ALWAYS be environmentally
responsible.
• Follow the guidelines of the EPA or other
governmental agencies for the proper disposal of
hazardous materials such as engine oil, diesel
fuel and engine coolant. Consult the local
authorities or reclamation facility.
• NEVER dispose of hazardous materials
irresponsibly by dumping them into a sewer, on
the ground, or into ground water or waterways.
• Failure to follow these procedures may seriously
harm the environment.
Engine coolant contaminated with rust or scale
reduces the cooling effect. Even when extended life
engine coolant is properly mixed, the engine
coolant gets contaminated as its ingredients
deteriorate. Drain, flush and refill the cooling
system with new coolant every 1000 hours or once
a year, whichever comes first.
1. Allow engine and coolant to cool.
2. Remove the radiator cap
(Figure 5-16, (1))
.
3. Remove the drain plug or open the drain cock
(Figure 5-16, (2))
at the lower position of the
radiator and drain the engine coolant.
Figure 5-16
4. Drain the coolant from the engine block.
Remove the coolant drain plug
(Figure 5-17, (1))
from the engine block.
Figure 5-17
5. After draining the engine coolant, flush the
radiator and engine block to remove any rust,
scale and contaminants.
6. Reinstall and tighten the drain plug or close the
drain cock at the radiator. Reinstall and tighten
the engine block drain plug.
7. Fill radiator and engine with engine coolant.
See Filling Radiator with Engine Coolant on
page 4-18.
FULL
LOW
0000074A
(2)
(1)
(1)
000292
3
A
OIL
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