12-44 Simple inspection and service
2. Remove the cap from the reservoir tank .
3. Tilt the cab. P. 12-5
If the vehicle is a Crew-cab model vehicle,
uncover the engine inspection opening.
P. 1 2 - 4
4. Unlock the pressure cap by raising the fas-
tener . Remove the pressure cap by turning it
counterclockwise.
5. Open engine drain plug and radiator drain cock
to drain the coolant. Also drain the coolant in
reservoir tank.
NOTE:
By connecting an appropriate hose to the drain cock
nipple , you can drain the coolant without it
splashing.
6. After the coolant has been completely drained,
close both engine drain plug and radiator drain
cock.
7. Flush the cooling system.
Pour soft water (preferably after heating moder-
ately) through the pressure cap opening. Refit
the pressure cap tightly by turning it clockwise.
Lower the cab.
Start the engine, then run the engine at a
medium range RPM until the water temperature
gauge needle points the center of the scale, and
continue running the engine for about 10 min-
utes more from that point. Stop the engine and
discharge the water. Remember that the water
is very hot.
Repeat the above procedure until the water is
free of dirt.
CAUTION
If the radiator tubing is clogged or coolant is
more contaminated than usual, have your vehi-
cle inspected at an authorized dealer.
8. Make sure the radiator drain cock and engine
drain plug are securely fitted.
9. Tilt the cab. If the vehicle is a Crew-cab model
vehicle, uncover the engine inspection opening.
Tightening torque
Engine drain
plug
24.5 ± 4.9 N·m (18.1 ± 3.6 ft.lbs.,
2.5 ± 0.5 kgf·m)
Radiator drain
cock
1.5 ± 0.3 N·m (1.1 ± 0.2 ft.lbs.,
0.15 ± 0.03 kgf·m)
Z12077
<Crew-cab models>
FEFG.book Page 44 Thursday, March 10, 2005 7:30 PM
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