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. Site Operator
Protective equipment (safety helmet and gloves) must be worn according to the regulations, and splashing shall be prevented during transportation.
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 seriously polluted. Among them, not only the dust on the road surface should be removed, but also attention should be paid to whether moisture exists or whether the road surface is wet. If necessary, gas flame should be heated and dried before construction to ensure the adhesion effect and the smoothness and reflection effect of the marking line.
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, according to the position indicated in the design drawing and the measuring tools and white powder on the road surface.
Out of the mark. 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. One
In general, 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. The coating operation is a key step in the marking construction and should be strictly controlled according to the operating procedures. The operation steps are as follows:
Fill paint and curing agent respectively → unscrew the power key → open the electric switch 1 → open the material door → open the curing agent adding valve and adjust → when the hopper is half filled, open the electric switch 234 in turn → adjust the W speed control knob for marking construction
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, thickness, width, glass bead spreading amount, etc,
Adjust the parameters when 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 it is not easy to do this. The coating temperature is high, 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, and the glass beads cannot be on the coating. Good fixation, easy to fall off, poor reflective effect. At the same time pay attention to the amount of glass beads,
Spreading should be uniform and comprehensive. 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 7
Reduced recognition.
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 marking line that does not meet the requirements, remove the overflowing and hanging coating film, and check the thickness, size, spreading of glass beads and the shape of the marking 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.
5. cleaning
1 Loosen the screw under the bevel gear and take down the mixing shaft assembly
2 Loosen the fixing screw, remove the hopper, remove the mace, scrape the adhesive paint with a scraper, and apply butter in the hopper for standby
6. considerations
About 110 minutes to clean the hopper, impeller, mace
2 Coat the joint part of the bevel gear with butter for lubrication
7. 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.
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.
3. Change the oil: The engine uses 4-stroke gasoline oil, change the oil for 50 hours for the first time, and change the oil every 500 hours after work.
4. The engine air filter, spark plug, precipitation cup, etc. are cleaned every 6 months or 100 hours.
The hydraulic oil filter is cleaned every 3 months or 50 hours, and replaced every 6 months or 100 hours.
Operation sequence: add paint and curing agent respectively → unscrew the power key → open the electric switch 1 → open the material door → open the curing agent adding valve and debug → when the hopper is half filled, open the electric switch 234 in turn → adjust the w speed control knob for marking construction