Launtop MQ6638-FUZHOU Original Instructions Manual - page 9
Original Instructions
8204216
(2)Start the engine
Please refer to manual
of
engine.
4. Caution
(1) The fuel of the pump is Gasoline fuel , not allow mixing of them. Keep fire and other explosives
and inflammables away from the pump. Operate the pump on a level surface to prevent fuel spilling.
(2) Keep the fuel clean. The fuel must be filtered or settled for 24 hours before used. Do not add fuel
into fuel tank or crank case when the machine is running.
(3) Exhaust gas contains poisonous carbon monoxide. Never use the machine in poorly ventilated
locations, so that people and cattle will not be affected.
(4) Do not touch muffler and muffler cover while the macine is running or hot.
(5) Run new or newly maintained machine at low speed with low load for the first 20 hours of test
period. Do not run it at high speed with full load.
5. Use and Maintenance
(1) Theoretically, air pressure and the suction head of pump will decrease with the altitude increasing.
The value of decrease can be estimated by minus local atmosohere value from 10m(metre water
column).
(2) Short and straight pipe is preferred as it can reduce unnecessary loss of pipeline. The pipeline must
be supported to avoid from vibrating and damaging the pump by oppressive. Before operation you
must check connection part between pump and pipeline whether there is loose phenomenon and pay
special attention to leakage of inlet pipeline.
(3) The filter net must keep a certain distance between river surface, river bottom and river bank ,the
net must dip into water not less than 0.3m to avoid suction air and to keep a distance which is not less
than 1.2m from river bottom, river bank to avoid suction stone or weeds.
(4) When the pump is used in winter , to screw off the drain cock under the pump and draw off water
thoroughly after stopping the machine to prevent from being broken by ice of freeze.
(5) If the gap between impeller and the surface of flow guidance is over 1mm, so that it can be
continuous to be used after adding an adjustment shim on the shaft shoulder.
(6) When change self-priming pumps machinery seal, be sure to apply adhesive to the connection