Jacobsen SXG323, Service Manual

Page: 28 / 230

CHAPTER 3. ENGINE ACCESSORIES
27
3
1. RADIATOR
(1) CONSTRUCTION
(2) REMOVAL AND RE-ASSEMBL
Remove and reassemble the radiator in accordance
with the instruction of "DISASSEMBLY OF FUNC-
TIONAL BLOCKS."
Note:
Coolant should be replaced if it becomes contam-
inated with rust or sludge.Before adding new
coolant, flush inside of the radiator and engine
block with clean water
PRECAUTION FOR FILLING ANTI FREEZE
Follow manufacturer's instructions for mixing ratio
of antifreeze.
Antifreeze should be blended well with water before
filling.
When the coolant level is lowered due to evaporation,
maintain the level by adding water, not by using an
antifreeze solution.
When the coolant level is lowered due to leaks,
maintain the level by adding an antifreeze solution of
the same mixing ratio.
Take care not to spill antifreeze on painted parts.
(3) INSPECTION FOR RADIATOR WATER LEAKS
Water leaks are liable to occur at the fitting portion
between the upper tank and the core section or
between the lower tank and the core section.
Test the radiator for leaks with compressed air in a
manner as shown below.
Or check for leaks with a radiator cap tester as
shown as below.
Note:
Never allow the test pressure to exceed
1kgf/cm
2 (14.2 psi) in both cases.
Fig. 3-1
Fig. 3-2
Fig. 3-3
CHAPTER 3. ENGINE ACCESSORIES