Operation and maintenance manual
Section 210-0000
Cooling System - Cooling System (Series 60 Engine)
SM 2117 Rev 1 11-03
6
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the test strips as follows:
a. Dip the strip into coolant for one second. Remove
and shake briskly to eliminate excess fluid.
b. Immediately compare end pad (% glycol) to the
colour chart.
c. Sixty seconds (one minute) after dipping, compare
the nitrite pad.
For best results make the tests while the coolant is
between 10° - 60° C (50° - 140° F). Wait at least 60, but
not longer than, 75 seconds before reading the nitrite
level. Promptly replace and tighten container cap after
each use. Discard unused strips if they have turned
light pink or tan.
Note: Failure to properly maintain coolant with SCA
can result in damage to the cooling system and its
related components. Conversely, over-concentration of
SCA inhibitor can result in poor heat transfer, leading to
engine damage. Always maintain concentrations at
recommended levels.
SPECIAL TOOLS
Refer to Section 300-0070, SERVICE TOOLS, for part
numbers of the coolant test strips and general service
tools required. These strips and tools are available
from your dealer.
system must not have SCA's added at initial fill.
The concentration of SCA will gradually deplete during
normal engine operation and should be checked after
every filter change. Additional SCA must be added to
the coolant when it becomes depleted below the level
specified in the table on the following page.
Maintenance dosage of SCA must only be added if
nitrite concentration is less than 800 parts per million
(PPM). If nitrite concentration is greater than 800 PPM,
do not add additional SCA. Refer to 'Test Kit
Procedures'.
Test Kit Procedures
Coolant Test Strips should be used to measure nitrite
and glycol concentrations (See Special Tools).
Cavitation/corrosion protection is indicated on the strip
by the level of nitrite concentration. Freeze/boil over
protection is determined by glycol concentration. Use
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