Maintenance and care
36
1
2
1 Working valve
2 Filler cap
Improper mixing of anti-freeze and cor-
rosion inhibitors may lead to lime and cor-
rosion deposits in the engine cooling sys-
tem which can jeopardize cooling
efficiency.
In such cases it is necessary to clean the
cooling system at suitable intervals.
Cleaning the outside of the radiator
(wear goggles)
Extreme dirt deposits can clog the honey-
combs so that the remaining surface no
longer ensures sufficient cooling. In such
cases, the insects, dust etc. should be re-
moved from the honeycomb system of the
radiator block and the radiator itself then
cleaned with the cleansing agent HENKEL
P3-begesol. This cleansing agent is avail-
able from MAN in 10-kg cans under Part
No. 09.21002-0164.
Procedure:
D
Mix P3-begesol with water, ratio 1:1
D
Using a spray gun, spray the mixture in
as straight a jet as possible directly into
the radiator fins
D
Let the mixture work for 5 minutes
D
Hose down the radiator with a straight
jet of tap water directly from the front.
In cases of stubborn dirt deposits re-
move the radiator and hose it down di-
rectly from behind. Do not use high-
pressure cleaners (steam sprayers may
be used)
Henkel P3-begesol contains no toxic or
corrosive substances and, if handled
properly, may be used without hesitation.
Cleaning the inside of the cooling sys-
tem
(by authorized specialist personnel)
Investigations have shown that in many
cases the poor condition of the coolant
and /
or the cooling system accounts for
damage to the water pump mechanical
seal. The poor condition of the cooling
system is normally due to use of unsuit-
able or no anti-freezing agents and cor-
rosion inhibitor or defect, not early enough
replaced covers for filler neck and working
valves.
If twice in a short time the water pump of
an engine develops leakes or the coolant
is heavily contaminated (dull, brown,
mechanically contaminated, grey or black
signs of a leakage on the water pump
casing, after the defect on the oil cooler)
clean the cooling system
prior to
remov-
ing that water pump as follows:
a) Drain coolant
b) Open thermostats positively (use short-
circuit inserts), so that the entire cool-
ant circuit is flushed in the cleaning
operation
c) Fill coolant circuit with a mixture of hot
water (min. 50
°
C) and Henkel P 3 neu-
trasel 5265 detergent (1.5% by volume)
(-5266, -5225, Kluthe Hakopur 316),
see Publication “Fuels, Lubricants ...”
Summary of Contents for D 2866 E
Page 1: ...Operating Instructions Diesel Engine D 2866 E D 2866 TE D 2866 LE D 2866 LXE...
Page 2: ......
Page 12: ...Technical information 10 Engine views D 2866 E 1 2 3 4 5 7 6 8 9 10 11 12 13...
Page 14: ...Technical information 12 Engine views D 2866 TE 6 7 8 9 1 2 4 5 3 10 11 12 13...
Page 16: ...Technical information 14 Engine views D 2866 LE LXE 1 2 3 4 5 6 7 8 9 10 11 12 13 14...
Page 55: ...Notes 53...
Page 63: ......