Tomos A31988, Руководство по ремонту, Страница: 24 / 31

Classic Cycles Technical Resources
24
OIL PUMP
After assembly or repair of models with oil pump, you must keep to the following instructions
The pump is connected to the magneto nut on the
crankshaft by a special clutch (fig 68)
Unscrew the bleed screw on the oil pump and wait
until oil from the tank under the seat flows to the
pump. The screw is then screwed on (fig 69)
Pour approximately 1 liter gas mixture in the ratio
of 50:1 (2% oil) into the fuel tank and start the
engine. Let the engine run for about 5 minutes so
as to make the oil pump push oil into the engine.
Fill up the tank with regular gas.
Ensure that the oil level in the oil tank does not fall
under the marking MIN (fig 70). Pay special
attention to the routing of the oil lines to and from
the oil pump. If the outflow line is crimped, oil will
not reach the carburetor, causing engine damage.
Note: When fitting the magneto cover on oil pump
models, make sure the oil pump seat axis lines up
with the crankshaft axis. Use the centering pin
attached to the magneto cover (fig 71) for this
purpose. When the center has been found, push
the cover by hand onto the crankcase (which is
made possible by the spring in the centering tool)
and fix the cover by screwing it down.
Major deviations from the center result in the
clutch damage, and this, in turn, causes the oil
pump drive stoppage. The lubrication of the
cylinder, piston, and crankshaft of this unit is thus
cut off, which may lead to breakdown of the unit.