TH4330,4290,4260
64
COOLING SYSTEM
CAUTION: DO NOT remove radiator cap when
engine is hot. Rotate cap slowly to release
pressure. Then cap can be safely removed.
FIG. 6-19: Cooling system is filled at factory with
antifreeze solution to protect engine and radiator to –30F
(-34C). Coolant level should be indicated between upper
limit mark, A, and lower limit mark, B in coolant reservoir
tank. Check coolant protection from freezing annually.
NOTE: After adding coolant in reservoir tank, start
engine and operate until thoroughly warmed so
coolant is mixed.
Periodically check condition of hoses, belt and clamps
and tighten or replace as necessary.
Keep radiator, radiator screen and hood screens clean to
permit maximum cooling.
IMPORTANT: Use care when cleaning radiator to pre-
vent cooing fin damage.
FIG. 6-20: Drain cock, 2, will drain coolant from cylinder
block and radiator. Drain cock is located on right side of
engine. Coolant should be replaced if it becomes contam-
inated with rust or sludge. Loosening radiator cap will
assist draining.
NOTE: When coolant is replaced, flush inside of radiator
and engine block with clean water.
Radiator and engine must be drained if freezing tempera-
tures are expected and coaling system is not filled with
coolant having adequate protection from freezing.
FIG. 6-21: Correct fan belt tension helps to insure ade-
quate coolant flow through cylinder block and radiator.
Belt is correctly tensioned when belt deflection is approxi-
mately 1/2" (13 mm) when thumb pressure (10 kgf) is
exerted at center of belt span.
CAUTION: Due to muffler position, allow to
cool before checking or adjusting fan belt
tension.
FIG. 6-19
FIG. 6-20
FIG. 6-21
Summary of Contents for TH4260
Page 72: ...TH4330 4290 4260 72 FIG 6 34 3 FIG 6 34 4 ...
Page 91: ...ISEKI TRACTOR 91 ...
Page 92: ...TH4330 4290 4260 92 ...
Page 93: ...WIRING DIAGRAM WIRING DIAGRAM WIRING DIAGRAM TH4260F ...
Page 94: ...WIRING DIAGRAM TH4260FH ...
Page 95: ...WIRING DIAGRAM TH4290F ...
Page 96: ...TH4330 4290 4260 WIRING DIAGRAM TH4290FH 4330FH ...