MTU 12 V 4000 M63 Especificaciones descargar pdf (Pagina 85)

Preservation speciﬁcations 83

9 Preservation speciﬁcations

General information

The preservation and represervation speciﬁcations apply to all MTU diesel and gas

engines as delivered from the factory, i.e:

• reserve stock engines

• installed engines that have not yet been put into service

• ﬁeld engines with extended downtime, e.g. normal out-of-service periods, out-of-service-periods

for scheduled maintenance or unscheduled repair work.

Field engines and engines that were put out of service for a scheduled major overhaul must

be preserved immediately after their last service period.

All MTU engines are delivered with initial preservation as per factory standard MTV 5073.

Cooling circuits must always be preserved after the coolant has been drained. Preservation is

not required if the coolant is left in the system.

Represervation intervals depending on the storage conditions

Deﬁnition of storage conditions

A distinction is made between the following storage conditions:

Normal

(free of frost, closed heated rooms, max. temperature ﬂuctuations of between 10 and 40

°C, clean, monthly average relative air humidity ≤ 65%)

Difﬁcult (dust / contamination, with drops below dew point > 20% of the month, monthly average

relative air humidity > 65%)

Unsuitable

(salt-laden air, outdoor storage)

Storage conditions

Packaging Represervation Remarks

Normal

Standard packaging

Every 12 months

Difﬁcult Standard packaging

Every 6 months

Unsuitable

Special packaging

Every 12 months Additionally every 3 - 4

months a check of the

humidity indicator in the

special packaging

The preservation or represervation agent is the same for all engine t

ypes. The type of engine packaging

depends on the storage and transport conditions. The gearbox manufacturer’s preservation speciﬁcations

must also be complied with when complete powerpacks / dri

ve systems are be preserved.

Note:

Warranty claims are invalid if the storage is not according to speciﬁcations.

Do not use natural rubber sealing material, as it is not resistant to aging.

Only MTU-approved ﬂuids and lubricants as speciﬁed in

Chapter 8 (Approved ﬂuids and lubricants)

(→ Page 45) are to be used for preservation and represervation .

In event of extended out-of-service periods, machined, non-protected surfaces, for example cylinder liner

running faces, are susceptible to corrosion and must therefore be preserved.

The applicable engine documentation must also be considered together with this Preservation

Speciﬁcation. Refer to the engine documentation f

or tasks and checks to be carried out when

shutting down an engine and before re-operating an engine.

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MTU 12 V 4000 M63 Especificaciones Pagina 85

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