18
MAINTENANCE
3.1 General Notes for Maintenance
Make sure that the respective safety
regulations are followed during the
maintenance, especially the safety regulations
stated in section 2 of these operating,
maintenance and repair instructions.
Proper maintenance of the vibratory plate
ensures a much higher functional safety and
increases the
lifetime of important parts. The necessary
maintenance efforts are by no means
proportional to the
damages that may occur by non-observance.
l
Clean the vibratory plate and the engine
thoroughly before starting maintenance
work.
l
Place the vibratory plate on an even
surface for maintenance.
l
Perform maintenance only when the
engine is turned off.
l
Catch running out oils and fuel in a way
harmless to the environment and do not
allow them to seep into the ground or
sewage system. Dispose of oils and fuel in
a way harmless to the environment.
Frequent causes of failures
l
Faulty operation
l
Incorrect, insufficient maintenance.
3.2 Fuels and Lubricants
Engine oil
During operation in winter use winter engine oil!
To ensure a reliable cold start, it is important to
choose the viscosity (SAE-class) of the engine
oil according to the surrounding temperatures.
During operation in winter under -10
°
C (14
°
F),
the oil change intervals must be shortened.
Too viscous lubrication oil will cause difficulties
when starting, for this reason the temperature
during the engine start in winter is decisive for
the viscosity choice.
Oil viscosity
Because lubricant oil changes its viscosity with
the temperature, the surrounding temperature
at
the operating area of the engine is decisive for
the choice of the viscosity class (SAE-class)
(see diagram).
If the temperature occasionally falls below the
limit (e.g. the use of SAE 15W/40 up to -15
°
C),
the cold start ability could be impaired, although
this does not lead to any engine damage.
Temperature dependent oil changes can be
avoided by using multi grade oils. The following
mentioned oil change intervals are also valid for
multi grade oils.
Fig. 21
