Bomag BMP 8500, Operating And Maintenance Instructions Manual

Page: 81 / 128

Every 1000 operating hours
BOMAG 81 BMP 8500
Every 1000 operating hours
5.21 Checking, adjusting the
valve clearance
!
Caution
We recommend to have this work carried out
by trained personnel or our after sales service.
Check and adjust only when the engine is cold.
Cylinder 1 is on the flywheel side.
l
Disassemble cylinder head cover and glow
plug.
Fig. 119
Crankshaft position 1
IN = Intake valve
EX = Exhaust valve
l
Crank the engine until both valves on cylinder
1 are “overlapping”.
l
Perform the adjustment of the valve by follow-
ing the adjustment diagram 1"(Fig. 119), black
mark.
Fig. 120
l
Check the gap between rocker arm and valve
with a feeler gauge (Fig. 120).
Valve clearance for intake and exhaust valve:
0.145 - 0.185 mm
Fig. 121
Crankshaft position 2
IN = Intake valve
EX = Exhaust valve
l
Turn the crankshaft one revolution (360 °) fur-
ther.
l
Perform the adjustment of the valve by follow-
ing the adjustment diagram 2"(Fig. 121), black
mark.
l
Assemble the cylinder head cover with a new
gasket.
i
Note
After a short test run check the engine for leaks.