Well Drilling Machine
1.Operation and uses of the Diesel engine
1.1 Preparation works
1.1.1 Diesel oil
Diesel oil should be stored in a clean and closed container and should be precipitated for a long time before use. Filtrate it again with screen when filling. Open fuel tank cover, fill clean diesel oil into it fully.
Open the cock of the fuel tank.
0# light diesel oil is selected in summer and -10# or -20# light diesel oil should be used in winter.
1.1.2 Lubricant oil
The lubricant oil with certain viscosity according to ambient temperature should be selected and it should conform to the stipulations of GB5323:30#(No HC-14)lubricant oil
is selected in summer and 20#(No HC-11 or HC 8)lubricant oil in winter.
Different kinds of lubricant oil (including different model or viscosity) should not be mixed together when filling.
Lubricant oil should be stored in a clean and closed container so as to prevent impurities entering. When filling ,draw out the oil dipstick and fill clean lubricant oil into the oil sump.
The amount of filled oil should be about 2.5Kg.Check oil level with oil dipstick to see if the level is between two marking lines.
Note:The oil level should not be over the upper line when filling and below the bottom line when running normally.
1.1.3 Cooling water
Clean soft water should be used as cooling water and waste or hard water (well water for example) is not allowed to use. If it has to use hard water in certain conditions, it should be softened. The simplest way is to boil it and then precipitate and filtrate is before use, otherwise water channel should be blocked. Often replace cooling water in tank to remove impurities and dirt.
The red mark in float should rise to its highest position while filling water into this tank.
1.1.4 Remove air from fuel
Loosen the connecting bolt in fuel pipe to remove air mixed in fuel pipe until diesel oil flows or without bubbles, then tighten the bolt.
1.2 Starting
After preparatory works above mentioned being finished. Check the engine carefully and start it according to following procedures:
1.2.1 Set the speed- control level knob at the ATART position on speed panel.
1.2.2 Open the decompression level with your right hand and crank up the rocker arm until
normal injection sound is heard.
1.2.3 Crank the rocker arm at a high speed until the flywheel obtaining enough momentum, release the decompression level and continue to crank the rocker arm with effort, the engine will start up running itself.
1.2.4 Once the engine starts up running, the staring handle will disengage and slip out.Then operator should keep it in hand firmly to prevent any possible accident.
1.3 Running
1.3.1 After starting, make the engine running for5-8 minutes at lower speed. Then in-crease speed gradually. The engine runs with full load only when the temperature of the water tank is higher.
1.3.2 Check to see if the oil indicator is risingup.The lubrication system is abnormal if it does not rise up or drops suddenly, stop the engine at this time and fill lubricant oil fully or remove troubles.
1.3.3 It is normal that the cooling water is boiling when the engine is running. Note:When the mark in float drops down to the inlet of the water tank,it is necessary
to fill water in time.
1.3.4 Often view the colour of exhaust air when the engine is running.It is not allowed to run the engine when black smoke occurs. This necessary to decrease load or remove troubles in time.
1.3.5 It is not allowed to make the engine running with super load. Removing the fuel corrector to increase the power of the engine is strictly prohibited.
1.3.6 Stop the engine immediately of abnormal sound is heard when the engine is running, the check carefully.
1.3.7 During the period of first 50 hours when a new diesel engine is used, operate it carefully and do not run the engine with the largest load, Check again and tighten all loosened bolts and nuts after that period.
1.4 Stopping
1.4.1 Unload the engine and run it at lower speed for a while.
1.4.2 Set the throttle handle at the STOP position, the engine should go out itself.
Note: Stopping the engine with the decompression level is strictly prohibited.
1.4.3 Close the cock of the fuel tank
1.4.4 Drain out all cooling water in winter or when stopping the engine
for a long time. Remove drain cock regularly to dredge water channel and re-move dirt. 1.4.5 Set the exhaust valve closed to prevent vapour or impurities entering into the
cylinder. The method so as follows:
1.4.5.1 Turn the flywheel until it cannot be turned
1.4.5.2 Open the decompression level to continue turning the flywheel until its mark
of T.D.C.is directly against the mark on the water tank.
1.4.6 Emergency stop
Loosen the connecting nuts on high-pressure fuel pipe or open the decompressor to stop the engine running at once if abnormal sound is heard suddenly or flying running occurs.
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