Maintenance Of Grease Gun

Grease gun suppliers will share this article with you.

Problem: Grease gun can't pump grease.

The most common cause is an airlock. This problem can be solved by continuously pumping to see if the air is drained away. Secondly, loosen the cylinder once and pump continuously, then tighten the cylinder when pumping grease. If all else fails, with a clean rag on your finger, push the grease up from the plunger end into the inside of the toner so that there is a small dome of grease at the other end of the toner. When installing an ink cartridge, the grease dome should be filled with space under the grease gun head, and the airlock should be removed. All types of injection guns can be equipped with airlocks - manual, electric, pneumatic, and miniature.

Problem: There is no pressure to pump the grease and the grease flows out from around the connector.

This is a common situation when the coupler fails. Couplers are designed to be mounted on standard size grease mouths. Unfortunately, while there are many oversized nozzles, connectors can stretch beyond their elasticity to accommodate oversized nozzles. Thereafter, it will no longer hug the nipple tightly enough to form the seal needed to push the grease into the nipple, resulting in the grease extruding from the edge of the connector. This gives the impression that the gun is malfunctioning and that it may be a malfunctioning coupler. Remove and replace the coupler. The grease nozzle is of the correct size and has been hardened for long service life.

Problem: The plunger of the grease gun is too large to hold the cartridge.

This is a common misconception in new butter guns. This is caused by the rigidity of the plunger. To solve this problem, pull the plunger back, insert it into the cartridge, and grease the inside of the cartridge until it is reached. Slide the plunger up and down several times so that the plunger absorbs grease and lubricates itself. This will help the plunger to enter the cartridge easily.

The main reason why the plunger will not enter the spool after the above operation is that it has an airlock, and because it is pumping air, the plunger will not move forward after the air is compressed into the airlock.

Problem: Grease will not be pumped into the tip coupler.

Many inexpensive tip couplers are not surface-hardened, so if the tip falls off and is damaged, grease will not be pumped in.

Problem: The hose seems to sag and bend for a while.

This is due to the continuous filling of the hose with grease and the weight of the hose causing the end of the grease gun to bend.

Problem: Grease contamination

Couplers and flexible extensions may scale over time. Dust and gravel contamination can be transferred to any place you want to lubricate. Changing couplers and flexible extensions on a regular basis can help prevent this problem and is always a good idea.

Problem: It seems that the grease gun can't pump and is locked to the nipple.

This could be a clogged nipple, especially with battery-powered grease guns. People tend to put their fingers on the trigger and quickly reduce the battery, which doesn't solve the problem. Replace the clogged grease nozzle. To release the grease coupler from the nipple, tilt it to the side of the nipple.

Timing Of Circular Saw Blade Grinding And Matters Needing Attention In Grinding

 The circular saw blade is not a disposable product. Under normal circumstances, it can be repaired 2-3 times, which is often referred to as saw blade grinding. This is also a more important process. If the circular saw blade is finely ground, the effect is not inferior to the new saw blades.

1. Judgment of the timing of grinding

1)Cut off the workpiece

During the cutting process of the equipment, the condition of the carbide saw blade can be judged from the sawed workpiece. If the surface of the workpiece is found to have too many lines or the sawing work difference is abnormally large, you can check the saw blade at this time. Other problems can be used as a basis for replacement and grinding.

2)Abnormal sound

Under normal circumstances, the sound when the saw blade cuts the workpiece is relatively uniform and no noise, but one day when the sound is too loud or abnormal when sawing, it should be checked immediately. If there is no equipment and other problems, it can be used as a replacement saw blade. The basis for grinding.

3)Excessive smoke

When the carbide saw blade cuts the workpiece, due to friction, a certain amount of smoke will be generated. Normally, it will be light. If there is a pungent smell or the smoke is too thick, it is probably because the saw teeth are not sharp. , Need to be replaced and reground.

4)Excessive consumption

This is easy to judge. There are certain statistics during the usual sawing operation. If you find that the material loss is too large, you should check all the conditions, most of which are the problems of the carbide saw blade.

5)The workpiece has burrs

Under normal circumstances, the burrs of the cut-off workpiece will be less or easy to remove. If there are too many burrs or bursts, and it is difficult to remove, you should consider whether the saw blade needs to be replaced (it is worth noting that When some high-end equipment cuts, under normal circumstances, there is no burr. If there is a burr, it must be a problem with the saw blade.)

6)Parameter judgment

Most of the current equipment has touch screen operation, including parameter setting. Carbide saw blades have a certain cutting square number. You can watch the sawing progress to determine whether it needs to be replaced. There is also a view of the cutting edge. Less than 0.2mm. Reasonable maintenance of carbide saw blades are more conducive to enterprise cost control and equipment quality.

2. Matters needing attention in grinding circular saw blade

1)Note that the front-to-rear ratio is 1:3. The minimum remaining length and width of the saw blade from the tooth seat shall not be less than 1mm; the relevant operations must be strictly followed. Non-professionals cannot operate and maintain the correct method for grinding. The saw blade can only be used within a reasonable life span. If it is not properly ground, it will only reduce the efficiency and quality of the circular saw blade.

It is strictly forbidden to grind only from the front corner surface or only from the rear corner surface. This will greatly shorten the service life of the circular saw blade and will also affect the next grinding state!

Another important point is that the entire wear area should be fully ground. The circular saw blade is sharpened on an automatic sharpening machine. If it is manually sharpened on a general sharpening machine, it will seriously affect the quality of use. (CNC sharpening machine can ensure that the grinding of the front and rear corners are in the same direction)

In order to prevent large wear of the grinding wheel, it is necessary to leave enough side protrusions from the side of the sawtooth to the saw body. On the other hand, the largest side protrusion should not be greater than 1.0-1.2 mm per side to ensure the stability of the saw blade.

2)Chip flute

Try to ensure the chip removal space to avoid the situation of grinding the chip flutes at the same time due to grinding the saw teeth.

If the sawtooth is broken, you must go to the grinding center to change the tooth. When welding, pay attention to using the appropriate solder, and it is best to use a high-frequency welding machine.

3)Leveling and stress

If you want to use the circular saw blade for grinding and ensure its quality, please be sure to use the leveling and stressing process. Don't stop using it because of trouble. The flatness and stress value of the saw blade should be tested every time it is grinding. And corrected. Leveling can reduce the tolerance of saw blade runout, and add stress to the saw body strength and elastic characteristics, which is an essential process for thin saw blades; the relationship between the outer diameter of the circular saw blade and the outer diameter of the flange You can find it in the DIN8083 standard; the outer diameter of the flange should not be less than 25-30% of the outer diameter of the circular saw blade.

We are circular saw blade manufacturer. Please feel free to contact us.

How To Use Electric Drill

 Electric drill suppliers will share this article about electric drills with you.

I.Instructions

1. Personal protection when using an electric drill

1) Wear a protective mask when working with the face-up. Wear protective glasses when drilling holes in pig iron castings to protect your eyes.

2) The drill holder should be properly installed.

3) The drill bit is in a hot state during operation, so be careful to burn your skin.

4) When drilling a hand-held electric drill with a diameter of 12mm or more, use a pistol drill with a side handle.

5) Standing on a ladder or working at a height, measures should be taken to fall from a height, and the ladder should be supported by ground personnel.

2. Matters needing attention before the operation

1) Confirm whether the power source connected to the site matches the nameplate of the electric drill. Whether there is a leakage protector connected.

2) The drill bit and the holder should be matched and installed properly.

3) Make sure that the switch on the electric drill is turned on, otherwise, the electric drill will rotate unexpectedly when the plug is inserted into the power socket, which may cause personal injury.

4) If the worksite is far away from the power source and the cable needs to be extended, use a qualified extension cable with sufficient capacity. If the extension cable passes through the pedestrian walkway, it should be elevated or take measures to prevent the cable from being crushed and damaged.

3. The correct operation method of the electric drill

1) Drilling holes in metal materials should first be used to punch the holes where they are drilled.

2) When drilling larger holes, drill through with a small drill in advance, and then use a large drill to drill the hole.

3) If you need to drill holes in metal for a long time, you can take certain cooling measures to keep the drill sharp.

4) It is strictly forbidden to clean the drill chips produced by drilling by hand. Use special tools to clean the chips.

4. Maintenance and inspection

1) Check the drill bit: The use of a dull or curved drill bit will make the motor overload surface abnormal and reduce the work efficiency. Therefore, if such a situation is found, it should be replaced immediately.

2) Check the fastening screws of the electric drill body: check the fastening of the installation screws of the electric drill body before use. If the screws are found to be loose, they should be tightened immediately, otherwise, it will cause the electric drill to malfunction.

3) Check the carbon brushes: The carbon brushes on the motor are consumables. Once their wear exceeds the limit, the motor will malfunction. Therefore, the worn-out carbon brushes should be replaced immediately, and the carbon brushes must always be kept clean.

4) Inspection of protective grounding wire: Protective grounding wire is an important measure to protect personal safety. Therefore, Class I appliances (metal casing) should be checked frequently and their casings should be well-grounded.

II.How to change the drill bit of the electric drill?

Generally speaking, the way to change the drill bit of electric drill and impact drill is the same, just because the drill chuck on the drill bit is divided into the self-tightening drill chuck and hand-tightening drill chuck. When replacing the drill bit, we need to hold the drill chuck with one hand and turn on the reverse switch of the electric drill at the same time. This simply replaces the original drill bit and use the same method to put the drill bit up. Of course, power tools manufacturer reminds: don’t forget the forward and reverse switch. Dial back, if it is a hand-tight drill chuck, you can replace it by opening the drill chuck key.

Precautions For The Safe Use Of Electric Tools

 Power tools are widely used in daily life, and they are an indispensable part of the tools in the home, construction, and decoration.

1. Rules for the safe use of electric tools

(1) Do not use power tools with broken wires or plugs.

(2) Before operating power tools, read the operating instructions or manuals.

(3) Do not use power tools on wet floors to prevent electric tools from leaking and cause electric shock.

(4) You must wear rubber-soled shoes when using power tools.

(5) Use a three-phase plug for the plug of the power tool, and confirm that the socket has been connected to the protective neutral line.

(6) Use the power tool switch to switch the power supply instead of plugging or unplugging the power plug instead of the switch.

(7) The power tools must be used in accordance with the operating regulations. Violation of the operating regulations will result in serious personal injury or death.

(8) Regular safety inspections of electric tools should be carried out.

2. Daily maintenance of power tools

Please always check the following items of power tools:

1)Whether the wire is damaged.

2)Whether the plug is damaged.

3)Whether the tool is damaged.

Electric Drill

1. Application          

An electric drill is mainly used for drilling and reaming.

2. Safety measures that should be paid attention to when using electric drills

(1) Follow the rules for the safe use of electric tools.

(2) Keep the electric drill stable during use.

(3) Do not overload the drill to increase the risk of fire.

(4) During the drilling process of the electric drill, the drill bit must be installed safely and firmly.

(5) Before use, check whether the electric drill is abnormal, and do not wipe them with wet hands.

(6) Ensure that the motor is ventilated. The vents must be kept clean and fully opened.

(7) Check whether the wire is damaged. If it is damaged, use a special tape to repair it safely.

(8) Do not use wires or plugs to drag the electric drill.

(9) Ensure that the workpiece to be drilled is reliably fixed, otherwise, the workpiece will easily rotate during the drilling process and cause personal injury.

(10) When the electric drill gets hot, lubricating oil is needed.

(11) When the electric drill is working, you need to wear a mask or goggles to prevent flying iron filings and particles from flying into your eyes.

(12) Continuously change speed during drilling, so that chip breaking can be achieved.

(13) When operating the electric drill, do not adjust the speed too fast, and do not apply too much pressure on the electric drill. Because this will overheat the drill and damage it.

(14) Check whether the speed set by the electric drill is reasonable. When drilling small holes, the drilling speed can be faster, and when drilling large holes, it can be slower.

(15) Before using the drill, check whether the drill is sharp and reliable.

(16) In order to avoid damage to the drill bit and injury to people and objects, reduce the applied force when the drill bit is about to drill through the workpiece.

(17) Put a label on the drill in question.

3. Maintenance of electric drill

(1) Use the drill key frequently to check the working condition of the chuck.

(2) Regularly check the insulation performance of wires, plugs, and shells.

(3) After use, the electric drill should be put back in the toolbox and stored in a dry place.

We are electric drill supplier. Please feel free to contact us.