Tightening The Screws; Engine Conservation - Fayat Bomag BP 20/50 Operating Instructions Manual

As required

6.23 Tightening the screws

i Note
Self locking nuts must always be replaced by new
ones after they have been unscrewed.
Fig. 76
*Strength classes for screws with untreated, non-
lubricated surfaces. The quality designations are
stamped on the screw heads.
8.8 = 8 G
10.9 = 10 K
12.9 = 12 K
The values result in a 90% utilization of the screw's
yielding point at a coefficient of friction of μ total =
0.14.
The compliance with the tightening torques is to be
checked with torque wrenches.
The tightening torques are not applicable when us-
ing MoS lubricants.
2
60

6.24 Engine conservation

Danger
!
Fire hazard!
When working on the fuel system do not use
open fire, do not smoke, do not spill any fuel.
Danger
!
Health hazard!
Do not inhale any fuel fumes.
Environment
Catch running out fuel, do not let it seep into
the ground.
If the engine is to be shut down for a longer pe-
riod of time (e.g. over winter), we recommend
the following engine conservation measures
to avoid corrosion:
Clean the engine:
For this purpose use cold cleansing agent or,
l
even better, a steam cleaner.
Run the engine warm and shut it down.
l
Drain the still warm engine oil and fill in fresh
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engine oil.
Drain the fuel from the tank.
l
Fig. 77
Open the fuel tap (1) (Fig. 77) in direction of ar-
l
row.
BOMAG BP 20/50, BP 25/50