High-speed saw operation and maintenance procedures

　　High-speed saw operation and maintenance procedures

　　1. Before homework.

　　1.1 Confirm whether the power supply used matches the specifications indicated on the tool nameplate.

　　1.2 Confirm whether the power switch is turned off. If the power switch is turned on, the power tool will turn unexpectedly when the plug is inserted into the power socket, causing serious accidents. 1.3 If the work site is moved to a place away from the power source, use the extension cable with sufficient capacity, install the appropriate extension cable, and keep it as short as possible

　　2, pay attention when using.

　　2.1. Safety glasses should be worn to protect the eyes.

　　2.2. Wear a protective mask when working with your face up.

　　2.3. Earplugs should be worn during work to reduce the impact of mocking.

　　2.4. The drill holder should be properly installed.

　　2.5. The drill bit should be hot during operation, so pay attention to it.

　　2.6. Side handles should be used when working.

　　2.7. Only with good working posture can safe operation be implemented.

　　2.8. When starting the operation, first confirm whether the grease is supplied normally and whether the screws are properly tightened.

　　2.9. When working above the ground, pay attention to the safety of the contents and pedestrians.

　　2.10 When drilling the ceiling or floor, first confirm whether there are buried cables or pipes. .

　　3, operation

　　3.1. Drilling method

　　A. Put the drill bit to the drilling position, and then pull the switch trigger.

　　B. The hammer drill only needs to be pressed slightly, so that the chips can be discharged freely, and there is no need to press hard.

　　3.2 Flattening and crushing Put the drill bit on the flattening and crushing position, and use the weight of the drill to perform operations. When working, there is no need to push hard at all. Use self-drilling anchor bolts for drilling and driving operations When using self-drilling anchor bolts, the anchor bolts can be driven in.

　　High-speed saw operation and maintenance procedures

　　At this time, various optional accessories for self-drilling anchor bolts, such as anchor bolt adapters, must be used.

　　3.2.1 Use impact anchor attachment

　　A. Set the rotating wooden handle on the anchor bolt attachment, and then perform the impact to open a base hole at the drilling site, and at the same time use the operation to rotate the handle, the plug is not yet installed in the anchor bolt

　　B. After reaching the predetermined depth, temporarily pull out the anchor bolt.

　　C. Use an ejector to blow off the chips.

　　D. Install the plug on the anchor bolt, and continue to drive in the anchor bolt with a hammer drill.

　　E. After driving in the anchor bolt, use the trigger key (DRIFTKEY) to separate the anchor bolt

　　F. Use a hammer or pliers to release the tapered part of the anchor bolt.

　　3.2.3 Use rotary drill and impact anchor bolt attachment

　　A. Assemble the self-drilling anchor to the anchor attachment.

　　B. Turn on the switch and drill the foundation hole with self-drilling anchor bolts. When starting to drill, the drill should be tilted slightly to determine the hole position.

　　C. After removing the chips with an ejector, fit the plug to the tip of the anchor, and then hammer into the plug.

　　D. The operation of cutting items is carried out. At this time, the anchor bolt attachment must be used.

　　3.2.4 Use taper shank attachment

　　A. Install the drill bit together with the taper shank on the taper shank adapter.

　　B. Connect the shape and drill until it reaches the depth of the marked groove.

　　C. After removing the tip of the chip with an ejector, fit the plug to the tip of the anchor bolt, and drive the anchor bolt in with a hammer or pliers.

　　4. Maintenance

　　4.1. Check the drill bit: The use of a dull drill bit will cause the motor to work abnormally and reduce the work efficiency. Therefore, if the drill bit is found to be significantly worn, it should be replaced with a new one or sharpened immediately.

　　4.2. Check the installation screws: Always check whether the installation screws are tight and properly. If the screws are found to be loose, they should be re-tightened immediately, otherwise a serious accident may result.

　　4.3. Motor maintenance: Motor winding is the heart of power tools. Check carefully for damage and whether it is wetted by oil or water.

　　4.4. Check the carbon brushes: The carbon brushes on the motor are consumables. Once the wear degree exceeds the "wear limit", the motor will malfunction. Therefore, the worn out carbon brushes should be replaced with new ones immediately. In addition, the carbon brush must always be kept clean so that it can slide freely in the brush holder.

　　Replacement steps: Remove the tail cover and brush cover, the carbon brush can be removed individually. 4.5. Check the dust cover: The dust cover is designed to prevent dust from entering the internal mechanism. If the inside of the dust cover is worn out, it should be replaced immediately. The dust cover can be removed by pulling it.

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