1) Safety measures. After arriving at the construction site, we must first consider the width of the road, traffic and other factors. Make full use of safety facilities such as signs, warning lights, traffic cones, command flags, etc., and provide traffic controllers to manage pedestrians and traffic and try to prevent accidents. Construction personnel should wear work clothes with obvious signs and eye-catching colors. Night construction should have reflective clothing, reflective signs, to ensure the safety of construction personnel and engineering. On-site operators must wear protective equipment (safety helmet, gloves) as required. The hot-melt coating is high-temperature liquid after melting, so it should be strictly prevented from contacting with human body and splashing during transportation.
2. The coating is heated and melted. The finished product of hot melt coating is a solid powder block, which needs to be heated and melted into a liquid with a certain viscosity during construction. The specific operation method is as follows: when the paint is dissolved, it should be heated with a small fire and a small amount of paint should be added. when it starts to melt, the agitator should be started to stir, and at the same time, no
Put new materials into the kettle, increase the amount of fire and strengthen stirring until the paint in the kettle is completely melted. The heating temperature of the coating should not be too high, when heated to 200
Above ℃, the material has a tendency to deteriorate. The main causes of deterioration of the material are thermal decomposition, oxidation, and evaporation. When the yellow paint is heated, it may be discolored due to the poor temperature resistance of the yellow pigment. Therefore, the melt coating to avoid long time high temperature heating, it is best to use the appropriate temperature, short time heating method. However, when the construction needs to wait, the temperature should be cooled, and the temperature should be raised when the coating is carried out. When the pavement temperature is higher than 25 ℃, the coating temperature can be controlled at about 180 ℃; if the pavement temperature is lower than 25 ℃, the coating temperature should be controlled at 190-200 ℃ and can be put into the construction equipment for marking construction.
3, the road surface cleaning. The important condition for the combination of paint and road surface is to keep the contact surface clean. The dust, mud and sand and moisture on the road surface are the main factors for the adhesion of paint. In particular, slow lanes and sidewalks are heavily polluted,
This is not only the dust on the road surface to be removed, but also pay attention
Whether there is moisture, or whether the road is wet, if necessary, the application of gas flame heating and drying before construction, in order to ensure the adhesion effect and marking flatness and reflective effect.
A, first of all, the section to be marked to protect, so that the marking workers clean the road surface, the whole working section with broom, brush thoroughly clean up, accumulation with shovel.
B, brush off the dust on the road with an iron brush, and then clean the brush.
c. Blow the cleaned road surface 1-2 times with a hair dryer to completely remove the dirt in the road surface gap.
4. Lofting. First of all, traffic management should be done to ensure the safety of lofting operation. Then measure the position of the marking line, and mark the road surface according to the position indicated in the design drawing and the measuring instrument and white powder of the figure. After the setting-out is completed, check whether the control meaning contained in the marking pattern can be correctly expressed and whether the driver and pedestrian can be accurately identified. When setting out the marking, the center point of the road shall be measured first, and then the center line shall be determined at intervals of 10-20m. Set the center point every 5-15m along the radius of curvature on the curve section. When it is confirmed that the set center point connection line matches the curvature, the road centerline profile is drawn by connecting each center point. In this way, check forward in sequence, while continuously extending the center line forward, it is also necessary to continuously check with the set center line position. According to the position of the road center line, mark half the width of the marking line and draw the outline of the width of the marking line for coating operation. For the curve section with small curvature radius, the design and construction of the road alignment must be confirmed to obtain the coordination with the road alignment.
The lane dividing line and edge line can be measured according to the center line. Generally, the width of the marking line should also be marked. The setting-out of crosswalks and characters shall be based on the principle of construction drawing design.
5. Apply primer (lower coating agent). In order to improve the adhesion between the road surface and the coating film, the primer (undercoating agent) must be applied on the road surface. Too much or not enough primer coating will reduce the adhesion between the pavement and the film. When applying, use a spraying machine, etc. to adjust the primer to a uniform thickness and then apply it. The primer coating width should be slightly wider than the marking lofting width. After the primer is applied, it shall be cured. When the primer does not stick to the tire, dust and sand, the marking coating operation can be carried out. The curing time shall be determined according to the temperature, humidity, coating amount and coating method.
6. Coating. Coating operation is the most critical step in marking construction and should be strictly controlled according to the operating procedures. Coating operation procedures and precautions:
a. Check the construction machinery before coating to ensure that the equipment is in good condition. Pre-use linoleum and white iron sheet for field test painting, check the color.
Ze, thickness, width, glass bead spreading amount, etc., and adjust the parameters if necessary;
B. Marking line coating. It should be carried out after the primer solvent is dried, and the marking line should be marked before the primer is dried. The solvent will penetrate the unhardened coating wax and cause bubbles.
C, in order to ensure the identification of the night, in the marking coating at the same time to spread glass beads, experience shows that half of the diameter of the glass beads embedded in the coating film reflective effect is best. But to do this is not easy, the coating temperature is high, glass
The glass beads are spread quickly, and the glass beads will sink into the coating; the coating temperature is low, the glass beads are spread slowly, the coating is close to curing, the glass beads cannot be well fixed on the coating, it is easy to fall off, and the reflective effect is very poor. At the same time, pay attention to the amount of glass beads, spreading evenly and comprehensively. Too much glass beads spread, so that the tone of the day is bad, and produce uneven, but also easy to make dust sticky and reduce the identification.
D, the paint in the marking car should always keep the mixed state;
E, just paved asphalt pavement is easy to cause pollution to the marking, it is best to postpone the construction.

7. Finishing. Trim the markings that do not meet the requirements, remove the overflowing and hanging coating film, and check the thickness, size and spreading of glass beads.

And the shape of the line. To repair the substandard markings, collect scattered glass beads, to prevent vehicles and pedestrians from slipping. Timely arrange construction machinery, tools, remove construction residues and take photos.
Operation steps of 4. marking car

1. Check: check whether there is any leakage in the gas pipeline, keep the gas pipeline sealed in good condition, and check whether the screws of each connection part are loose and fastened.

2. Refueling: a Check the hydraulic oil. The static level of hydraulic oil shall be located in the middle of the filter screen of the oil filler. If there is any shortage, add it. The hydraulic oil should be replaced after 50 hours of initial use of the new machine, and the hydraulic oil should be replaced every 500 hours after use.
Pressure oil. Hydraulic oil winter selection 30-45 wear-resistant hydraulic oil, summer selection of more than 60 wear-resistant hydraulic oil.
B Check engine oil and fuel. The static level of engine oil should be located between the upper and lower scales of the oil scale, and should be added if there is any shortage. If the color of the engine oil becomes dark, replace the new engine oil in time. If the color of the engine oil changes
Black will seriously shorten the service life of the engine.
c Check the air compressor oil. The static oil level should be located between the upper and lower scales of the oil scale, and should be added if there is any shortage. The oil of the air compressor is changed every 500 hours of operation.
d Check the oil of the oil-water separator. The oil cup of the oil-water separator shall be kept
2/5-4/5 capacity of oil, if there is insufficient should be added.
3. Debugging: Open the benchmark in front of the car and adjust the benchmark to be in line with the inside of the hopper. Flexible hopper opening and closing, adjust the floor knife, so that the coating thickness of 2mm is appropriate. The beading device should be sensitive in operation, and the glass beads should be evenly spread, with a spreading amount of about 0.3kg/m2.
4. Feeding: add the molten coating in the hot melt kettle into the coating barrel, and filter through the filter screen in the coating barrel to prevent impurities from entering. Ignite the ignition gun, turn on the gas switch of the paint barrel, use the ignition gun to ignite the fire head under the paint barrel to heat and insulate the paint, and adjust the gas supply of the gas switch to keep the temperature of the paint in the paint barrel always at the temperature required for construction.
5. Start: Place the travel handle in the middle stop position and the clutch handle in the separation position;
Turn on the engine fuel tank switch, close the engine choke, and the engine
The throttle is in the low-to-medium speed position;
Pull the engine start handle by hand to start the engine;
Open the engine choke valve and run the engine at low speed for 3-5 minutes without load;
Adjust the throttle and set the engine throttle to the low to medium speed position.
Adjust the air pressure: lift up the pressure regulating handle of the oil-water separator and turn it.
Move the handle to adjust the pressure to 0.4-0.6mpa, press the pressure adjustment handle.
6. Coating: the pavement can be coated after setting out, priming and drying. Use the ignition gun to ignite the front and rear fire nozzles of the hopper and heat the hopper. Open the front post and set the clutch handle plate to the "closed" position. Turn on the power switch of the controller, select the construction mode (see the back page for the specific setting method), turn on the spraying switch, and gently push the walking handle with the left hand to make the marking car post travel along the white line of lofting. If you push forward, you will move forward, and if you pull backward, you will move backward. Put the hopper on the road surface, open the valve of the paint barrel to put the paint into the hopper, and be careful not to overflow the hopper when discharging. Press down the hopper handle to open the hopper switch, pull the bead dispenser switch handle to open the bead dispenser switch, and control the marking car to move forward at a constant speed. When the marking car is moving, it is necessary to replenish and discharge the material into the hopper at any time. At the end of the line segment, lift up the hopper handle, hang the hopper on the hopper bracket, and turn off the bead spreader switch.
Coating bucket, hopper in the construction should be continuous heating, so that the coating temperature is always maintained at the construction requirements of the temperature.
7. Shutdown: Run out the paint in the barrel as much as possible, and turn off the burner to stop heating;
Put the travel handle in the middle stop position and the clutch handle in the disengaged position;
Put the engine throttle in the idle position, and run the engine at low speed for 1-3 minutes without load;
Turn off the engine stop switch.
8. Setting
This instrument can be installed on the scribing equipment as required. The instrument consists of two parts: the host controller and the sensor.
Main function: This machine is a multi-function controller. Three roads can be controlled at the same time, and one of them can be selected during the construction of protruding marking.
Operation:
The controller for the full Chinese display (can also choose to display in English), paging surface function settings:
(1) State of scribing:
Turn on the power switch. The screen displays the operation page:
Press F1, the 1# upper light turns dim, and the 1# solenoid valve is in the preparation state. Press F5 to make 1# lower light dim, and 1# solenoid valve is in intermittent operation preparation. Press F4, the machine is in automatic working state.
The controller can control 3 channels at the same time, F1 and F5 are one channel, F2 and F6 are one channel, F3 and F7 are one channel, and one of them can be used. F4 is self
Move the main switch; F8 is the inching (manual) switch. When F4 is closed, press the button to work the solenoid valve, and release the button to close the solenoid valve.
(3) Parameter selection:
Press the down arrow to open the parameter selection page.
Press F1, F2 and F3 to select the corresponding line shape. Only one line shape can be selected at a time. There are 2 data in each line shape, the first data is the length of the convex line segment, and the last data is the length of the horizontal line.
(4) Parameter setting:
Press the down arrow to open the parameter settings page.
Press the SET key, enter the required length, and press ENTER to confirm. If you press the SET key, the shaded part will be skipped without modification. Press the 9 key to display a hidden page, showing the number of pulses per centimeter and the value of inching addition and subtraction. The value on this page has been adjusted when leaving the factory and generally does not need to be changed.
(2) Work quantity statistics:
Press the down arrow to open the Job Count page. The screen displays the cumulative working length (note that the backoff is a minus value). Press the CLE key on the screen to clear.
5. maintenance
1. After work every day, the paint in the hopper should be cleaned up. Try not to leave too much paint in the paint barrel. It is best to clean up the remaining paint in the barrel.
2, bearings, the rotating parts should be regularly filled with grease, lubricating oil.
3. Gasoline engine, air compressor and oil-water separator should check the oil every day, and add it in time if there is any shortage.
4. Replace the hydraulic system oil: The hydraulic system oil should be replaced every 500 hours of work. If the color of the hydraulic oil turns black, it should be replaced immediately.
The hydraulic pump of this machine is imported precision parts, and the hydraulic oil used
(Engine oil) should be kept clean and strictly filtered, with a filtering accuracy of 40μm.
125. Change the engine oil: the engine uses 4-stroke gasoline engine oil.
Use 50 hours to change the oil, and then change the oil every 500 hours of operation.
6. The engine air filter, spark plug, precipitation cup, etc. are cleaned every 6 months or 100 hours.
7. The hydraulic oil filter element is cleaned every 3 months or 50 hours, and every 6
Replace once a month or 100 hours.
8. When using the opening and closing plate of the oscillating hopper, often add oil for lubrication. Clean up the paint and dust in the gap in time to prevent insensitive opening and closing.
5. Troubleshooting
Please read this manual carefully, find out the basic principles, combined with their own practical experience, the general fault can be eliminated. Common faults are shown in the following table: