MTU 12 V 4000 M63 Specifikace stáhnout pdf (Strana 103)

Flushing and cleaning speciﬁcations for engine coolant circuits 101

10 Flushing and cleaning speciﬁcations for engine

coolant circuits

General information

These cleaning speciﬁcations are for the engine coolant circuits in MTU diesel engines and gas engines.

In the course of time, sludge deposits from aging coolant additives can accumulate in the coolant circuits. Reduced

cooling capacity, clogged vent lines and drain points and dirty coolant level sight-glasses can result.

Below-standard water quality or incorrect coolant preparation can also heavily contaminate the system.

If such conditions occur, the coolant circuit is to be ﬂushed out with fresh water, repeatedly if necessary.

If these ﬂushing sequences are insufﬁcient or if the system is too heavily contaminated, the

coolant circuit and all affected parts must be cleaned.

Only clean, fresh water (no river or sea water) must be used for ﬂushing.

Only MTU-approved or corresponding products at the speciﬁed concentrations may be used for

cleaning. The speciﬁed cleaning procedure is to be complied with.

Immediately after ﬂushing or cleaning, ﬁll the coolant circuits with treated engine coolant as stipulated

in the current MTU Fluids and Lubricants Speciﬁcations A001061 (→ Page 45).

Fluids and lubricants (e.g. treated engine coolant), used ﬂushing water, cleaning agents and cleaning solutions can be

hazardous materials. Certain regulations must be obeyed w hen handling, storing and disposing of these substances.

These regulations are contained in the manufacturer’s instructions, legal requirements and technical guidelines

valid in the individual countries. Considerable differences can apply from country to country so that no generally

valid statement on the applicable regulations for ﬂuids and lubricants etc. can be made in this publication.

Users of the products named in these speciﬁcations are therefore obliged to inform themselves of

the locally valid regulations. MTU accepts no responsibility whatsoever for improper or illegal use

of the ﬂuids and lubricants / cleaning agents which it has approved.

Scrap oil heat exchangers from engines with bearing or piston seizures or friction damage!

Test equipment, auxiliary materials and ﬂuids and lubricants

MTU test kit or electric pH-value measuring instrument

•Freshwater

• Prepared engine coolant

• Superheated steam

• Compressed air

Approved cleaning products

Manufacturer

Product name

Concentration for use Order No.

For coolant systems:

Henkel P3-Neutrasel 5262

2% by volume

Liquid

Henkel

P3-Saxin 2% by weight

Powder

Novamax

Grision 5716 2% by weight

Powder

Nalco

Maxi Clean 2

2% by volume

Liquid 40495

TIM ID: 0000010140 – 006

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