Fayat Group Bomag MPH 122-2, Operating & Maintenance Instructions

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Maintenance
BOMAG 98 MPH 122-2
Fig. 203
Optimal operating conditions can be achieved by
using the oil viscosity chart (Fig. 203) as a refer-
ence.
At ambient temperatures below -40 °C the lubrica-
tion oil must be pre-heated (e.g. by parking the
machine indoors).
The viscosity is classified acc. to SAE. Multi-pur-
pose oils should generally be used.
Oil change intervals
The longest permissible time a lubrication oil
should remain in an engine is 1 year. If the follow-
ing oil change intervals are not reached over a pe-
riod of 1 year, the oil change should be performed
at least once per year, irrespective of the operating
hours reached.
DQC III,
DQC IV = 500 operating hours
!
Caution
When using fuels with a sulphur content of
more than 0,5% to 1% or under permanent am-
bient temperatures below -10°C and when us-
ing biodegradable diesel fuel the oil change
intervals must be halved.
Fuels
You should only use commercially available brand
diesel fuel with a sulphur content of less than 0.5%
and ensure strict cleanliness when filling in. A
higher sulphur content has a negative effect on the
oil change intervals.
The fuel level should always be topped up in due
time so that the fuel tank is never run dry, as oth-
erwise filter and injection lines need to be bled.
Quality
The following fuel specifications are permitted:
l
EN 590
l
DIN 51628
l
ASTM D975 Grade-No. 1-D and 2-D.
l
JIS K 2204 Grade Fuel 1 and Grade Fuel 2
with lubrication properties acc. to EN 590
Winter fuel
For winter operation use only winter diesel fuel, to
avoid clogging because of paraffin separation.
Diesel fuels suitable for temperatures down to -44
°C are available for arctic climates. At very low
temperatures disturbing paraffin separation can
also be expected when using winter diesel fuel.
The admixture of petroleum and the addition of
"flow enhancing additives" (fuel additives) is not
permitted.
Coolant
For fluid cooled engines the cooling fluid must be
prepared by admixing a cooling system protection
agent to the fresh water and should be checked
within the specified maintenance intervals.
This prevents damage caused by corrosion, cavi-
tation, freezing and overheating.
Fresh water quality
The correct quality of water is highly important
when preparing coolant. Clear and clean water
within the boundaries of the following analysis val-
ues should generally be used.