wc_tx003101gb.fm
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Maintenance
LTN 6K/8K-V
6.13
Performing Coolant Solution Analysis
When
Every 500 hours or 12 months, whichever comes first.
Overview
Engine coolant must be regularly tested to ensure that it remains at an acceptable
pH level. Unacceptably low pH levels in coolant create an acidic mixture that will
permanently damage the radiator, engine, and engine-related components.
Requirements
Machine shut down
Engine cool
Coolant test strips (provided by owner/operator)
Procedure
Perform the procedure below to check the engine coolant level.
1. Slowly rotate the radiator cap
(a)
counterclockwise to release any remaining
system pressure. Unscrew and remove the radiator cap after the pressure has
been released.
2. Dip a coolant test strip into the filler neck and read the pH level.
NOTICE:
Do not use plain water or any other liquid as engine coolant. Doing so will
quickly corrode and permanently damage the coolant system. Damage caused by
incorrect coolant will not be covered under warranty.
Result
The coolant solution has now been analyzed.
WARNING
Burn hazard. Engine coolant is hot and under pressure at operating temperature.
f
Test the coolant pH level only after the engine has been shut down and is cool.
If
Then
Coolant pH level tests below 8.5
or above 10.5,
the coolant is not acceptable for use.
Drain, flush, and refill the system with a new
ethylene glycol solution (50/50).
Coolant pH level tests between 8.5 and
10.5,
the coolant is acceptable for use.
wc_gr009992
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