SEBU8121 61
Maintenance Section
Crankcase Breather (Canister) - Replace
Test for SCA Concentration
Heavy-Duty Coolant/Antifreeze and SCA
NOTICE
Do not exceed t
he recommended six percent supple-
mental coolant additive concentration.
Use a Coolant Conditioner Test Kit in order to check
the concentra
tion of the SCA.
Add the SCA, If
Necessary
NOTICE
Do not exceed the recommended amount of sup-
plemental coo
lant additive concentration. Excessive
supplemental coolant additive concentration can form
deposits on the higher temperature surfaces of the
cooling syst
em, reducing the engine’s heat transfer
characteristics. Reduced heat transfer could cause
cracking of the cylinder head and other high temper-
ature compo
nents. Excessive supplemental coolant
additive concentration could also result in radiator
tube blockage, overheating, and/or accelerated water
pump seal we
ar. Never use both liquid supplemental
coolant additive and the spin-on element (if equipped)
at the same time. The use of those additives together
could resu
lt in supplemental coolant additive concen-
tration exceeding the recommended maximum.
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system filler cap,
stop the engine and wait until the cooling system
components are cool. Loosen the cooling system
pressure cap slowly in order to re lieve the pres-
sure.
1. Slowly loosen the cooling system filler cap in
order to relieve the pressure. Remove the cooling
system filler cap.
Note: Always discard drained fluids according to
local regulations.
2. If necessary, drain some coolant from the cooling
system into a suitable container in order to allow
space for the extra SCA.
3. Add the correct amount of SCA. Refer to the
Operation and Maintenance Manual, “Refill
Capacities and Recommendations” for more
information on SCA requirements.
4. Clean the cooli
ng system filler cap. Inspect the
gaskets of the cooling system filler cap. If the
gaskets are damaged, replace the old cooling
system filler
cap with a new cooling system filler
cap. Install the cooling system filler cap.
i02297611
Crankcase Breather (Can ister)
- Replace
Hot oil and hot components can cause personal
injury. Do not allow hot oil or hot components to
contact the skin.
Removal pro c edure
g01131061
Illustration 26
Typical example
1. Place a suitable container beneath the canister.
2. Remove the canister (1) with a suitable tool.
Installation procedure
1. Clean the sealing surface of the canister.
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