17
drive arrangements
9. Engine marks
Power can be taken from more than one shaft at the same time provided
the total power absorbed is not greater than the rated power of the engine.
Drive and starting arrangements are as follows:
MARK I Drive at half engine speed on camshaft extension at end
remote from flywheel Rope starting at flywheel end
MARK II Drive at engine speed on crankshaft extension at end remote
from flywheel Rope starting at flywheel end
MARK VI Drive at engine speed from flywheel end. Rope starting at end
remote from flywheel
10. Pulley drive (Fig. 2)
Allow for 21/2% increase between centres
When belt drives are used the belts should be as close to the engine as
possible
To prevent damage to new vee belts when fitting, the distance between
the centre of the engine pulley (A) and the driven pulley (B) must be capable
of a reduction from the designed running position.
Provision must also be made for an increase of at least 2 1/2% over the
designed running position to provide adjustment for belt stretch and wear
during the life of the belts Multiple belts should always be renewed in
matched sets
11. Rotation
Standard engine rotation is clockwise when viewed from the flywheel end.
To Next Page
Loading...