Hand power machines can be classified as the lower category of the industrial machines. They are usually the smallest in size from all the used in and workshops. They are called hand power because they are usually held with hands while using them. Examples of such include grinders, cutters, power brushers, power sand dusters, wood planers, and hand drillers, etc. all these are usually held with the hand when they are in operation.
The purpose of having such in workshop and is to be able to carry out some works at a precise level and for little maintenance purposes. It is also a fact that some fabrication and construction firms rely basically on these for finishing jobs on their . Such firm does make it compulsory for their field workers and workshop workers to be experts in handling such for that reasoning training may be offered to the new intakes.
Working with can be pleasant to the expert but scaring to the novice or armature. Just like any other , they have the potential of creating serious injury to the operator and causing damage to the workpiece when improperly handled.
Most construction firm can have 40% of the total annual accident records to be caused by hand power , for this reason, several safety talks and training can be held for the safety aspect of handling such tools.
Let us discuss some of the regarding such in highlighted points.
GENERAL FOR HAND POWER
- Hand power usually operate with and such speed may not be adjustable, hence; the operator must be ready to commence the before turning the on.
- Most accidents from hand-powered do come from rotating, cutting or working tool of the , the operator must ensure that grinding disc, filing disc, or drilling bit, is fixed properly on the before turning it on.
- It is recommended to test run hand power without load before feeding them into any workpiece, this is to avoid an unexpected reaction from the when it is feed into the workpiece.
- The speed of such can cause an opposite reaction thereby trying to drag the operator’s hand to unwanted directions, hence; good staminal and positioning is required when handling such .
- In the case of grinders and cutting , their disc must be properly fixed and torqued with their key to avoid flying out or getting loose during operation.
- Cutting disc can break-off under and extreme hard workpiece and the broken piece may fly and injure the operator, it is recommended that operators wear the general personal protective equipment (PPE) specified in the general which includes; coverall, goggle, face shield, safety boot, hand gloves, etc.
- Washers or flange facings or compressible material shall be fitted between the wheel and its flanges. If blotting paper is used, it should not be thicker than .025 inch.
- Before inserting the into the workpiece ensure it is running at stable speed and has reached its maximum speed, otherwise; the may be jumping-off the track.
- Do not operate hand power for a long time without turning them off. It is recommended to turn such off after every maximum of 30 minutes interval and then turn them on again. This is to help the last longer in service and avoid the risk of getting the coil armature burnt.
- Always wear leather hand gloves whenever must be used to for proper gripping, and do not touch the finished workpiece immediately with bare hands because they are usually hot. Some factors may offer the operator the rule not to wear hand gloves and that depends on the type, size, and working condition of the .
- Ensure proper arrangement of the workpieces you want to on with the so that the rotating part of the does not drag or kick any of the workpieces and get you injured.
- Clamping and fixing the workpiece in a proper position is necessary before operating hand power on the workpiece.
- The rotating surface of the hand power must not be allowed to face downwards, such that they make contact with the or table even when their plugs have been disconnected from sockets.
- the switch always to ensure it is off before connecting the to sockets.
- Barricades and fire brackets are necessary to shield others from the sparks, dust, or other particles that usually come out during the use of such . For that reason, the operator must always wear nose whenever it is necessary.
- The operator must not keep the on the or table while it is still ON or while the parts are still in motion.
- Operators must look out for any broken part of the cable to avoid electrocution.
- Water should be made available if the operation will be carried out on a wooden surface, since some hot workpieces may cause smoke to start coming out if operated upon for a long time.
- Chips and machined particles must be removed frequently from the workpieces while carrying out the operation and during the removal, the should be turned off.
- Proper inspection of the must be carried out before and after every use.
These are the basic rules that guild an operator on the best way of handling and operating , though there may be omissions the above rules actually stands as compulsory for operators.
Every operator must be aware that, it is easier to have a personal accident with hand power than with workshop . So the above rules must not be taken for granted.
Originally posted 2018-03-14 12:21:02.
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