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LAUNCH                                                          KWB-421 Wheel Balancer User’s Manual 

14 

Warranty 

 
THIS  WARRANTY  IS  EXPRESSLY  LIMITED  TO  PERSONS  WHO  PURCHASE  LAUNCH  PRODUCTS 
FOR PURPOSES OF RESALE OR USE IN THE ORDINARY COURSE OF THE BUYER’S BUSINESS.   

 

LAUNCH products is warranted against defects in materials and workmanship for one year from date of 
delivery  to  the  user.  This  warranty  does  not  cover  any  part  that  has  been  abused,  altered,  used  for  a 
purpose other than for which it was intended, or used in a manner inconsistent with instructions regarding 
use. The exclusive remedy for any automotive meter found to be defective is repair or replacement, and 
LAUNCH  shall  not  be  liable  for  any  consequential  or  incidental  damages.  Final  determination  of  defects 
shall be made by LAUNCH in accordance with procedures established by LAUNCH. No agent, employee, 
or  representative  of  LAUNCH  has  any  authority  to  bind  LAUNCH  to  any  affirmation,  representation,  or 
warranty concerning LAUNCH products. 

Declaration 

 
The above warranty is able to replace any warranty in other forms. 

Order Information 

 
Replaceable and optional parts can be ordered directly from your LAUNCH authorized supplier. Your order 
should include the following information: 

1.

 

Quantity 

2.

 

Part code 

3.

 

Item description  

Customer Service 

If you have any questions on the operation of the unit, please call: 86-755-84528767.   
If your unit requires repair service, return it to the manufacturer with a copy of the sales receipt and a note 
describing  the  problem.  If  the  unit  is  determined  to  be  in  warranty,  it  will  be  repaired  or  replaced  at  no 
charge. If the unit is determined to be out of warranty, it will be repaired for a nominal service charge plus 
return freight. Send the unit pre-paid to: 
Attn: Customer Service Center 
Shenzhen Launch Tech. Co., Ltd. 
Launch Industrial Park,   
North of Wuhe Rd., 
Banxuegang, Longgang, 
Shenzhen, Guangdong, 
P. R. China, 518129 

 

 

 

 

 

 

Summary of Contents for KWB-421

Page 1: ...V1 00 000 2018 08 18...

Page 2: ...purposes only and the registered trademark ownership belongs to original companies This equipment is intended for use by technical professionals or maintenance personnel Trademark Information is a reg...

Page 3: ...d Installation 3 2 1 Haulage and installation of the machine 3 2 2 Recommendations 4 3 Cotrol Panel 4 4 Operation 5 4 1 Wheel Mounting 5 4 2 Input the Wheel Data 6 4 3 Balance Mode Selection 7 4 4 Whe...

Page 4: ...lf calibration and full automatic failure diagnosis function 1 3 Technical Data Max wheel weight 65kg Max tire diameter 650mm Power supply 220V Noise 70dB Balancing accuracy 1g Rim width 1 5 18 Rim di...

Page 5: ...s termly The machine operator should not wear necktie long hair or loose cloth She or he should stand at the side face of the machine and make sure that unauthorized personnel do not approach the mach...

Page 6: ...ers for weight fixing removing or any other pointed objects 4 Operation Turn on the main power the balancer begins the interior self diagnostic program If A 8 0 is displayed on the display window the...

Page 7: ...attention to the direction else measurement error could be possible 4 2 Input the Wheel Data I Input the measurement data A II Input measurement data L On the measure statue pull out the slide ruler...

Page 8: ...r key to plus or minus a defined value to change the displayed figure till equal to the d figure Dynamic balance This is used in testing dynamic imbalance when the wheel running and to eliminate the i...

Page 9: ...For example outside screen displays 10g inside screen displays 40g outer imbalance value inner imbalance value Turn the wheel slowly by hand to locate the balanced point make sure that all the balanc...

Page 10: ...s plant This operation could be re do if the machine services too many years or the spares are charged or there is a big imbalance value Install a middle scale wheel which has a rim diameter 13 or 14...

Page 11: ...lue 1 The wheel has a big error value 1 Use a balanced wheel When the self calibration ends there is too big imbalance value for the 100g lead block or the position is not on the positive down or too...

Page 12: ...ed forward the sensor is wrong 1 Adjust the phase 2 Readjust the position or change another one Err5 displayed The wheel shield is not put down Put down the shield Err7 displayed EMS memory data lose...

Page 13: ...a sensor 2 Re do self calibration The balancer can not brake when the value displayed 1 The brake system is damaged 2 There is a disturb 1 Change a power board 2 Reset the machine There is a differenc...

Page 14: ...LAUNCH KWB 421 Wheel Balancer User s Manual 13 6 The Wiring Diagram of the Power Board Connected to transformer...

Page 15: ...ative of LAUNCH has any authority to bind LAUNCH to any affirmation representation or warranty concerning LAUNCH products Declaration The above warranty is able to replace any warranty in other forms...

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