4-28
7. Remove drain plug (5) in the engine cylinder block and drain the
water.
8. After draining the water, close drain valve (4) and tighten drain
plug (5).
9. Fill with city water.
10. When the radiator is full, start the engine, and run it at low idle.
11. Keep the engine running at low idle for 10 minutes until the
water temperature reaches more than 90 degrees C.
12. Stop the engine, let it cool off, then open drain valve (4) and
remove drain plug (5) to drain the water.
13. Close drain valve (4). Wind seal tape onto drain plug (5), then
tighten it.
14. Install undercover (1) and 2 covers (2).
15. Fill with super coolant and tap water through the water filler up
to the bottom of the filler.
For details of the mix ratio for super coolant and water, see chart
“MIXING RATIO OF WATER AND ANTIFREEZE”.
16. To bleed the air from the cooling system, run the engine at low
idle for 5 minutes, and for a further 5 minutes at high idle.
(When doing this, leave the radiator cap off.)
17. Drain the water from sub tank (6), wash the inside of the sub
tank.
18. Add cooling water to a point midway between the FULL and
LOW marks.
19. Stop the engine and then check the coolant level.
20. Tighten the cap (3).
[5] CHECKING/TIGHTENING TRACK SHOE BOLTS
If the machine is used with track shoe bolts (1) loose, they will
break, so tighten any loose bolts immediately.
[TIGHTENING]
1. First tighten to a tightening torque of 196 ± 19.6 Nm (20 ± 2
kgfm) then check that the nut and shoe are in close contact with
the link contact surface.
2. After checking, tighten the angle of the shoe bolts a further 90 ±
10 degrees for steel shoes (120 ± 10 degrees for swamp
shoes).
[ORDER FOR TIGHTENING]
Tighten the bolts in the order shown in the diagram on the right.
After tightening, check that the nut and shoe are in close contact
with the link mating surface.
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