Cub Cadet Yanmar 3TNV72 - Manual (Page 52)

GENERAL SERVICE INFORMATION
TNV IDI Service Manual 4-17
Engine Coolant
Figure 4-7
1. Check to be sure the radiator drain plug is
installed and tightened or the drain cock
(Figure 4-7, (1)) is closed. Also make sure the
coolant drain plug (Figure 4-8, (1)) in the
cylinder block is closed.
Figure 4-8
2. Remove the radiator cap (Figure 4-7, (2)) by
turning it counterclockwise about 1/3 of a turn.
3. Pour the engine coolant slowly into the radiator
until it is even with the lip of the engine coolant
filler port. Make sure that air bubbles do not
develop as you fill the radiator.
4. Reinstall the radiator cap (Figure 4-7, (2)).
Align the tabs on the back of the radiator cap
with the notches on the engine coolant filler
port. Press down and turn the cap clockwise
about 1/3 of a turn.
5. Remove the cap of the reserve tank
(Figure 4-7, (3)), and fill it to the LOW (COLD)
mark (Figure 4-7, (4)) with engine coolant.
Reinstall the cap.
6. Check the hose (Figure 4-7, (5)) that connects
the reserve tank (Figure 4-7, (3)) to the
radiator. Be sure it is securely connected and
there are no cracks or damage. If the hose is
damaged, engine coolant will leak out instead
of going into the reserve tank.
7. Run the engine until it is at operating
temperature. Check the level of engine coolant
in the reserve tank. When the engine is running
and the engine coolant is at normal
temperature, the coolant level in the tank should
be at or near the FULL (HOT) mark
(Figure 4-7, (6)). If the engine coolant is not at
the FULL (HOT) mark (Figure 4-7, (6)), add
additional engine coolant to the reserve tank to
bring the level to the FULL (HOT) mark.
Engine Coolant Capacity (Typical)
Note: Capacities listed are for engine only
without a radiator. Refer to the operation
manual provided by the driven machine
manufacturer for actual engine coolant
capacity on your machine.
The following are the engine coolant capacities for
various Yanmar TNV engines.
FULL
LOW
0000029A
(5)
(3)
(6)
(4)
(2)
(1)
0002923
OIL
(1)
Engine Model
Engine Coolant
Capacity
3TNV72 1.0 qt (0.9 L)
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