Use and maintenance of nzg-31 Ⅳ internal combustion rail drilling machine

1、 Method of use

1. Operation of cooling unit

1.1 the cutting fluid used by the drill is machine tool emulsified soap. In order to reduce the use cost, tap water can be used instead, but the water quality is required to be clean. Remember to drain the water after use.

1.2 the upper part of the cutting fluid barrel is equipped with a sealing and pressurizing device, which is pressurized with the pressurizing handle to send the cutting fluid to the stop valve along the hose. (figure below)

1.3 pull the pressure reducing valve before use to check its reliable function and ensure the safety of use.

1.4 when in use, the stop valve shall be opened and closed in time, and the liquid supply can be adjusted by the stop valve.

2. Operation of mixed fuel

2.1 the two-stroke gasoline engine uses the mixture of 93 and above gasoline and special engine oil for two-stroke gasoline engine as fuel. The mixing ratio of gasoline and engine oil shall be 25:1 by volume. Shake well in the mixing process. Pure gasoline shall not be used as fuel.

2.2 in the process of mixing fuel and refueling the machine, keep away from the fire source, do not smoke, and carry out it in an outdoor ventilated place.

2.3 refuel the machine after the gasoline engine stops running and cools down. When adding fuel, if gasoline overflows or falls outside the fuel tank, wipe it dry before starting the gasoline engine.

2.4 high air temperature or blocked vent in the oil tank will volatilize the gasoline in the oil tank and form air pressure. In order to reduce the oil and gas pressure, carefully unscrew the oil tank cover and slowly release the pressure, but do not remove the gasoline cover when the machine is running.

2.5 clean the oil tank frequently. Before refueling, clean the filter screen in the oil tank cover and the surrounding dust to avoid dust falling into the oil tank.

3. Operation of gasoline engine

3.1 open the oil valve. Turn the damper to the "off" position during cold start and to the "open" position during hot start.

3.2 confirm that the drilling machine has been clamped on the steel rail, slowly lift the starting handle until it feels that the starting rope has come into contact with the engine ratchet (at this time, the resistance is large), and quickly and violently pull the starting handle. When pulling the rope, control its length not to exceed 60cm, and slowly retract it back to the machine shield, so as to ensure that the starting rope is rewound.

3.3 after starting, rotate the choke away from the "off" position and turn the throttle to Z small. At this time, the machine should run at idle speed. The drill pipe will not rotate. If the drill pipe rotates, the idle speed is too high and should be adjusted.

4. Use of rail type locating plate

4.1 install appropriate locating plates according to the rail type of rail drilling.

4.2 the rail type positioning plate is divided into 50 and 60 rails, 43 and 50 rails, 60 and 75 rails.

4.3 for the convenience of users, "43", "50", "60" and "75" have been marked on the corresponding position of the positioning plate. When using, it is correct as long as the head of the corresponding font is upward close to the side of the rail.

4.2 install the locating plate and position it with the center pin. Turn the dual-purpose locating plate to a certain position, and then tighten the upper and lower screws.

5. Use of positioning ruler

5.1 the positioning ruler is divided into "43", "50 and 60" and "75", and the appropriate positioning ruler shall be selected according to the rail type of rail drilling.

5.2 a positioning ruler is used for 50kg / M and 60kg / M rails. As shown in the figure, 60kg / M rails are used when the conversion block is installed on one side of the rail end, and 50kg rails are used when the conversion block is installed on the other side.

5.3 before installing the drilling machine, first tighten the positioning ruler on the steel rail.

6. Operation of drilling machine

6.1 select the drill bit and its supporting thimble, confirm that there is no chip inside the drill bit, pull the feed handle to return the drill bit to the back Z position.

6.2 move the drilling machine to the line, align the clamping seat with the groove of the positioning ruler and fall down.

6.3 loosen and tighten the wrench to align the end of the lead screw with the bearing socket, and turn the wrench to clamp the steel rail.

6.4 if a hole is drilled in the middle of the rail, a positioning ruler is not required. Mark the top of the rail by adding 20mm to the left (or right) according to the drilling position, and then align the left (or right) of the clamping seat with the marking, which is the drilling position.

6.5 start the gasoline engine and gradually open the throttle.

6.6 open the cut-off valve of cutting fluid when drilling. Gently pressurize the drill bit and gradually pressurize it when the drill bit enters the working face. The hollow bit does not need a lot of pressure, but it should be fed evenly as far as possible. Reduce the pressure when drilling through.

6.7 when drilling through, close the stop valve of cutting fluid and close the throttle to make the gasoline engine idle.

6.8 before drilling the next hole, confirm that the drill cuttings core block has been ejected from the drill bit, and move the drill bit back to the back Z position.

6.9 if the cuttings core block is stuck in the drill bit, remove the drill bit and use the thimble to eject it from the back.

6.10 use the positioning ruler to locate and drill the remaining holes. After all the holes are drilled, gently take down the machine, stop the machine, and remove the positioning ruler.

6.11 bit damage is often caused by improper clamping, loose dovetail groove guide rail or improper adjustment of drill pipe bracket, which should be noted.

2、 Maintenance

1 adjustment of guide rail

Place the machine normally, pull the feed handle so that the sliding part can slide freely, and adjust the 5 set screws on the side of the handle box to reduce the dovetail slot gap. Through such adjustment, the sliding part can slide freely without too much relaxation.

2 adjustment of drill pipe bracket

Loosen the two fixing screws on the drill pipe bracket, start the machine, observe the swing of the drill pipe bracket, and tighten the fixing screws of the drill pipe bracket when the swing Z is small.

3 maintenance of gasoline engine

Please refer to the operation manual of gasoline engine.