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Customer Support
Customer Support
Cutting tools
Symptoms of failure Parts of failure Method of inspection Cause of the failure Knack of action Knack of action
Operation was out of control (disconnected) Swich Check whether the switch is disconnected /damaged or not Foreign body mixing Cleaning and foreign body removing Changing switch
Decrepit (exceeds endurance limit) Modifying and replacing switch Changing switch
Impactive damage
Socket damage and omission
Code Check whether the code is disconnected or not Disconnection according to occurring of abnormal tention of code clip part when moving Code part modifying and replacing Exchanging the code
The code being gnawed phenomenon caused by misuse when operating
Code socket damage and omission
Switch connection Check whether the switch connected in order Code lead wire socket damage and omission Reconnecting according to the connection picture in case of switch connection failure Switch connecting picture
Method of connection failure
Soft starter Check the soft starter socket's connecting and damaging Soft starter socket damage according to the overload Replacing soft starter Exchanging soft starter
Impactive damage
Amateur Check the disconnection of the amateur coil Coil burn-out thermic in overload caused by excessive operation Replacing amateur Exchanging amateur
Iin case of operation overrun rated using time
Coil damage according to inserting the foreign body Cleaning and replacing
Stator Check the disconnection /burn-out of the stator coil Burn-out stater caused by overload according to excessive operation Replacing stator Exchanging stator
Operation exceed the rated using time
Coil damage according to the insert of foreign body Cleaning and replacing
Stator lead wire connection part damage
Carbon brush Check if carbon brush is able to connect with the amateur commutator part Use exceeding the carbon brush abrasion limit line Replacing carbon brush Exchanging carbon brush
Spring operation failure according to the assembling failure
Insert foreign body to the brush holder
Loose connect of amateur commutator part
Safety cover Check the operation of safety cover Damage caused by external impact Modifying and replacing Exchanging safety cover
Return spring damage
Rock plate Check the operation of rockplate Damaging and crushing caused by external impact Modifying and replacing Exchanging rock plate
Damaging and crushing caused by operating among rotating of the product
Base Base operation Damage caused by external impact Modifying and replacing Exchanging base
Interference Amateur, Stator Check the interference of amateur and stator Amateur, stator not duly reach to the housing Modifying and replacing Exchanging amateur
Stator and amateur core failure Exchanging stator
Bearing In case of bearing abrasion and damage In case of abrasion and damage according to using exceeding bearing part endurance limit Replacing bearing Exchanging bearing
Processed goods Check the processed goods / projected goods bearing's duly reaching part abrasion condition (gear cover, housing, packing grand) Bearing injection part's size of distance between shelves failure Separately replacing in case of each part's abrasion occurred Housing arm
Bearing injection part's abrasion according to using exceeding endurance limit of each processed good/projected good
Vibration Amateur Check the bending and being stabbed of A/R shaft Amateur unbalance failure Replacing amateur Exchanging amateur
Check the bending of amateur fan Alteration of the form
Bearing check the whether the bearing worn out and damaged In case of abrasion according to bearing decrepit Replacing bearing Exchanging bearing
In case of bearing damaged
Housing, Gear cover, Bearing holder Check the abrasion condition of coated film bearing's duly reaching part Bearing duly reaching part's abrasion according to using exceeding endurance limit of coated film Replacing Exchanging housing, gear cover
Being damaged and transformed caused by external impact
Spindle Check the spindle size Spindle manufacturing failure Replacing Exchanging gear, spindle
Bending occurred caused by external impact
Tip saw blade Check the shaking of the tip saw blade Being damaged caused by external impact Replacing Safety covercheckup
Decrepit according to using exceeding endurance limit
And so forth Wheel balance supporting stone shakes Abnormal distortion occurred according to other humidity dry Replacing supporting stone real honest goods (KEYANG ayr stone)  
In case of manufacturing failure (check the floor plan) Wheel damage occurred
In case of using non real honest goods part Replacing wheel nut real honest goods
Flame Failure Carbon brush flame Brush holder's quivering An external diameter of amateur commutator being scratched phenomenon and transforming Replacing amateur Exchanging amateur
Severe carbon brush damage and abrasion
Carbon brush spring elasticity lose Using exceeding the carbon brush abrasion limiting line Replacing amateur, carbon brush
Flame occurred caused by using the carbon brush failure(equipment)
Flame caused by overheating Check the amateur and the stator are contacted (interfered) Burn-out occurred by overload using Replacing amateur, stator Exchanging amateur, stator
Case concentricity failure Replacing case Exchanging case
Flame caused by vibration Check the bearing damaged Bearing damaged by foreign body inserting Replacing bearing Exchanging bearing
Check the gear over-worn out Coated Films and Processed goods loose(transforming) occurred Replacing gear Exchanging gear
Amateur Flame Check the commutator surface's degree of rough Commutator being scratched phenomenon Replacing amateur Exchanging amateur
Check the commutator surface's degree of worn out Amateur balance failure
Check whether the amateur coil disconnected Insulating paper damaged by foreign body(dust) inserting
Check whether the amateur coil insulating paper is damaged Insulating paper damaged by foreign body(dust) inserting
Stator Flame Check the stator coil worn out Burn-out occurred by overload using Replacing stator Exchanging stator
Check the stator coil insulating paper damage
Damage (be broken) Amateur Check whether or not the amateur fan is damaged Damage by the foreign body mixing Replacing amateur (check with naked eye) Exchanging amateur
Sape alternation when releasing
Check whether the amateur commutator part is damaged In using privately made goods
Decrepitude exceed the term of guarantee
Handle Check whether or not the handle (A),(B) are damaged Material failure, external impact, shape alternation Modifying and replacing handle (check with naked eye) Exchanging housing handle
Processed goods (Coated Films) Check whether or not the spindle bending and damaged In case of spindle material failure Replacing spindle Exchanging spindle
In case of heat treatment failure
Shape alternation in case of disassembling and assembling the gear
Bearing Check whether or not the bearing worn out and damaged Decrepitude exceed the term of guarantee Replacing bearing Exchanging bearing
Damage when forcibly injecting bearing
Spindle, Gear Check whether or not the processed goods chisel part damaged and worn out in case of overloading operation exceed the rated using time Modifying and replacing Exchanging spindle, gear
decrepitude exceed the term of guarantee
in case of material's heat treatment failure
Electronics stuffs Check whether or not the switch, carbon brush, brush holder parts are damaged in case of tightening fixing bolt of brush holder part too much Cleaning and replacing Cleaning method
in case of using privately made goods of carbon brush Replacing at each part in case of the switch, carbon brush, brush holder damaged
Exchanging switch, carbon brush, brush holder
Presspum Check the switchholder and wheel cover being crushed and damage part in case of consumer careless handling Replacing at each part in case of the wheel guide being crushed and damaged Replacing wheel guide
Base safety cover Check whether or not the Presspum being crushed and operated being damaged by external impact Replacing exchanging base, safety cover and housing
decrepit according to using exceeding endurance limit
Stator Check whether or not the stator core is damaged External impact Replacing Exchanging
Rock plate Check whether the rock plate is damaged External impact Replacing rock plate Exchanging rock plate
Damage by operating during the product rotation
Projected goods Check the tail cover part damaged In case of consumer careless handling Rreplacing at each part in case of the switch holder, wheel guide being crushed and damaged Exchanging swich
Check the hand guard damaged part in case of decrepitude of each part's projected goods Exchanging Wheel guide
Noise Amateur Abnormal noise occurred as if 'woong' caused by the amateur an noise amateur fan being crushed and damaged Replacing amateur Exchanging amateur
Check the damage of the amateur chisel part
Spindle, Gear Check the worn out and damage of the gear and pinion chisel part in case of abnormal using of the term of guarantee (decrepitude) Replacing Exchanging gear, spindle
Check the occurrence of abnormal noise in case of chisel failure of the chisel part
Check the gear injecting condition in case of gear chisel part damage & worn out
Failure in gear injecting
Bearing In case of the bearing's worn out and damage in case of worn out and damage exceeding endurance limit Replacing Exchanging
Dust seal assembling omitted
And so forth Check whether or not the grease adequate amount existing Noise caused by shortage of grease Supplement the amount of grease Injecting grease
Check the bolt come loose
Output(RPM) decline Amateur Check load current Decrepit according to using exceeding endurance limit Replacing amateur Exchanging amateur
Amateur coil failure
Amateur commutator fusing failure
Stator Check whether or not the stator coil burn out according to overload Overload heat splice(coil burn-out) Replacing stator Exchanging stator
Bearing Check whether or not smoothly rotating with being worn out and damaged Insert foreign body Replacing bearing Exchanging bearing
Being stabbed when assembling
Grease quantity Check whether or not the grease quantity over-injected Grease over-injection (no-load current build-up) Supplement the amount of grease Supplement the amount of grease
Housing, Base holder, Gear cover Check the occurrence of blurring in case of abrasion caused by over use of bearing injecting part Decrepit according to exceeding endurance limit Replacing Exchanging housing, gear cover, bearing
Bearing injection part distance between shelves size failure (no-load current build-up)
Overheating Amateur, Stator Check the interference of the amateur and the stator Failure in case of fastening stator fixing bolt Modifying and replacing Exchanging amateur
In case of the bearing abrasion and damage Exchanging stator
Bearing Check the bearing abrasion and damage Check whether or not be worn out and damaged according to using exceeding endurance limit of the bearing part Replacing bearing Exchanging bearing
Bearing part dust seal assembling omitted
Grease Check adequate grease spread amount Iin case of lack of adequate amount of grease Supplement the amount of grease Injecting grease
Processed goods Check the processed goods bearing's duly reaching part abrasion condition (gear cover, housing, cylinder case, crank case) In case of bearing injection part's abrasion according to using exceeding endurance limit of each processed good Separately replacing in case of each part's abrasion occurred Exchanging gear cover
And so forth Various parts assembling failure (EX: less tighten) Assembling failure Modifying various part Using observable related measuring instrument
Check the voltage(V) Check whether or not the voltage(V) is existing
Running idle Spindle, Gear Check the running idle of the Spindle, Gear Heat treatment and size failure Replacing Exchanging spindle gear
Abrasion according to exceeding endurance limit
Amateur, Gear Check the gear abrasion of the amateur chisel part Heat treatment and size failure Replacing amateur Exchanging amateur
Excessively using more than product specifications
Washer, Flange bolt Check the flange bolt fastened enough Measuring failure Modifying and replacing Exchanging safety cover
Abrasion according to exceeding endurance limit
Check the spindle processing
Leakage Amateur Check the commutator damage Using carbon brush fixture Modifying and replacing Exchanging amateur
Check the amateur part coil's stabbed Amateur turning failure Cleaning and replacing amateur
Check the foreign body(dust) of amateur coil part Heat releasing caused by foreign body injection
Stator Check whether or not the coil is stabbed and the insulating paper is damaged Coil and insulating paper burn-out by heat release caused by foreign body mixing Replacing stator Exchanging stator
Foreign body (dust) Cleaning inadequate Cleaning and replacing
Carbon brush Mixing the carbon brush powder to amateur and stator Quality of the carbon brush failure Cleaning and replacing Exchanging amateur
Cleaning inadequate
Brush holder Brush holder crack and damage In case of fastening fixing bolt too much Replacing brush holder Exchanging brush holder
Check the brush holder socket inserting part In case of burn-out of brush holder part by heat release
Code Check the code sheath is peeled off Consumer carelessness Modifying, replacing code Exchanging code
Check the code socket Code itself failure
Assembling failure when assembling
Swich Switch soldering failure and damage In case of the sheath is peeled off defectively when arranging the wire during assembling process Modifying and replacing the switch soldering Exchanging swich
Connection arrangement Check whether being squashed when arranging it Assembling failure Modifying squashed part Check the lead wire squashed by naked eye

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