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MCL1638IW 3  02/28/20

MCL1638IW 3/8" 16V Impact Wrench

Service

22. Tool service must be performed only by the MATCO    

 authorized service centers listed. Service or maintenance  
 performed by unqualified personnel may result in a risk of  
 injury. Repair by unqualified personnel, use of unauthorized  
 parts, and failure to follow maintenance instructions may  
 create a risk of shock or injury.

SAVE THESE INSTRUCTIONS!

SPECIFIC SAFETY RULES

 

DO NOT let comfort or familiarity with product  

replace strict adherence to cordless product  

safety rules. If you use this tool unsafely or incorrectly, you 

can suffer serious personal injury.

1. Hold tool by insulated gripping surfaces when performing an 

operation where the accessories may contact hidden wiring. 
Contact with a “live” wire will also make exposed metal parts of 
the tool “live” and shock the operator.

2. Be aware that this tool is always in operating condition, because it 

does not have to be plugged into an electrical outlet.

3.  Always be sure you have firm footing.
4.  Be sure no one is below when using the tool in high locations.
5.  Hold the tool firmly and use both hands.
6.  Keep hands and hair away from rotating parts.
7.  Do not leave the tool running. Do not force tool to stay in the “on” 

position. Operate the tool only when hand-held.

8.  Do not touch the impact socket or the workpiece immediately after 

operation; they may be extremely hot and could burn your skin.

9.  Some material contains chemicals which may be toxic. Take 

caution to prevent working dust inhalation and skin contact. 
Follow material supplier safety data.

WARNING: 
  MISUSE or failure to follow the safety rules stated in 

this instruction manual may cause serious personal 

injury.

OPERATING INSTRUCTION 

Installing Or Removing Battery Pack

(See Fig.1, Fig.2)
1. Your new battery pack is not fully charged. Y 

ou may need to charge it before use. 

2.  Make sure the switch is in the "off" position  

before insertion/removal of a battery pack.

3.  To remove a battery pack, depress both tabs  

on either side of the battery and pull downward.

4. To insert a battery pack, align the battery with the  

tool housing and push battery inward until click  
indicating battery is fully installed.  

Charging The Battery Pack 

(See Fig.3)

1. Battery may not charge when it is above a certain preset 

temperature limit. Allow temperature of battery to cool before 
charging. 

2. The charge process will take less than one hour. 
3. After charging, unplug the charger from the power source and 

stow away in a safe place.

Tool Operation:

•  Always be sure that the tool is switched off and the  

battery cartridge is removed before installing or removing  

the socket.

1.  To install the socket, push the socket onto the anvil as far as it 

will go.

2.  To remove the socket, simply pull the socket from the anvil.

3.  To start the tool, simply pull the trigger. Release the trigger to  

stop.

4. For reversing the tool, use the forward/reverse switch on the 

drive unit. The directions of the rotation are also shown on the 

face of the switch.

5.  Always check the direction of rotation before operation..

6.  Use the forward/reverse switch only after the tool comes to a 

complete stop. Changing the direction of rotation before the 

tool stops may damage the gears.

 

 7. Hold the tool firmly in place, make sure the socket is  

 

 

 completely over the nut or bolt. Apply forward pressure to the 

 

tool  to the extent that the socket will not slip off the nut or bolt. Pull  

 

the trigger to begin.

 

 NOTE:

 

 •   Use the proper impact socket size for the nut that you intend 

 

to install or remove.

 

 •   Hold the tool pointed straight at the nut. If you tighten the 

 

nut for a time longer than it needs, the nut or point of the driver 

 

socket may be overstressed, stripped, damaged, etc. When 

 

tightening a standard nut in a steel plate, the proper tightening 

 

torque can be obtained in an extremely short time (approx. 0.1-0.2 

 seconds).

 

 •  Turn the tool off as soon as the impact sound is heard.

 

 

• When tightening nut M6 or smaller, carefully adjust 

 

 pressure on the switch trigger so that the nut is not  

 

 

 damaged.

 

 8. The tightening torque is affected by a wide variety of 

 

 factors including the following.

 

•  When the battery cartridge is discharged almost 

 

 

completely, voltage will drop and the tightening 

 

 torque will be reduced.

 

•  Driver bit or socket bit: Failure to use the correct size driver 

 

 bit or socket bit will cause a reduction in the tightening  

 

 torque.

•  Driving a bolt: Even though the torque coefficient and the class 

of bolt are the same, the proper tightening torque will differ 

according to the diameter of the bolt.

9. Even if the diameter of the bolts are the same, the proper 

tightening torque will differ according to the torque coefficient, 

the class of the bolt and the bolt length.

10. The manner in which the tool is held or the driving position  

 of the material to be tightened will affect the torque.  

 

Make sure that the impact wrench is turned off and the  

 battery cartridge is removed before carrying out any  

 work on the tool. To maintain product safety and    

 reliability, repairs, maintenance or adjustments should  

 be carried out by a Matco authorized service center.

Fig. 1

Fig. 2

Fig. 3

Summary of Contents for MCL1638IW

Page 1: ...that are specially designed to filter out microscopic particles Copyright Professional Tool Products 2020 All rights reserved MCL1638IW Operating Instructions Warning Information Parts Breakdown Blow...

Page 2: ...ful to hands or arms Remove adjusting keys or wrenches before turning the tool on A wrench or a key that is left attached to a rotating part of the tool may result in personal injury Do not overreach...

Page 3: ...e power source and stow away in a safe place Tool Operation Always be sure that the tool is switched off and the battery cartridge is removed before installing or removing the socket 1 To install the...

Page 4: ...22ID05 Ring Gear Holder 1 8 RS163808 Motor Assembly 1 9 RS122ID09 Forward Reverse Rod 1 10 RS12DD11 Switch Assembly 1 11 RS122ID11 Knob 1 12 RS12DD12 Thermal Conductive Pad 1 13 RS163812 PCB Assembly...

Page 5: ...ped or otherwise damaged in any way take it to a MATCO AUTHORIZED service facility 11 Do not disassemble charger or battery cartridge take it to your MATCO AUTHORIZED distributor service facility Inco...

Page 6: ...atteries Operating the charger with a damaged cord or plug PROPER CARE WILL MAXIMIZE PRODUCT LIFE Please note that there are differences in the care of Lithium Ion and Nickel Cadmium batteries PROPER...

Page 7: ...rranty MATCO16V LITHIUM ION BATTERY MCL1620LB CHARGER MCL16CHRG Matco Tools warrants its 16V Lithium ion battery charger to be free from defects in material and workmanship for a period of 2 years fro...

Page 8: ...quipo de seguridad aprobado tales como los m scaras anti polvo los que son espec ficamente dise ados para filtrar las part culas microsc picas Instrucciones de Operaci n Informaci n de Advertencia Rev...

Page 9: ...eg rese que el interruptor est en la posici n de bloqueado o apagado antes de insertar el empaque de las bater as Se invitan los accidentes si usted lleve las herramientas sobre el interruptor o si se...

Page 10: ...onciencia de que esta herramienta siempre est en condiciones de uso ya que no tiene que estar enchufada en una salida el ctrica para operarse 3 Aseg rese de siempre tener una base firme donde pisar 4...

Page 11: ...enga la herramienta firmemente en lugar aseg rese que el casquillo est completamente encima de la tuerca Aplique presi n hacia adelante hasta asegurar que el casquillo no se resbalar ni que se caer de...

Page 12: ...do o haya sido da ado de otra forma ll velo a una Instalaci n de servicio AUTORIZADO de MATCO 11 NO desensamble el cargador ni el cartucho de la bater a ll velo a su centro de servicio de distribuci...

Page 13: ...choques Evite dejarlas caer que se peguen o se expongan a las vibraciones Las bater as litio Ion pueden ser recargadas frecuentemente y pueden ser recargadas antes de que est n completamente agotadas...

Page 14: ...a de mantenimiento no constituye una garant a MCL1620LB BATER A MCL16CHRG CARGADOR DE ION DE LITIO DE MATCO16V Matco Tools garantiza su bater a cargador de ion de litio de ser libre de defectos en cua...

Page 15: ...tales ou autres probl mes de reproduction Voici quelques exemples de produits chimiques Plomb provenant des peintures Silicium cristallin provenant des briques du ciment et d autres produits de ma onn...

Page 16: ...lectrique N utilisez pas l outil si vous tes fatigu ou sous l influence de drogues d alcool ou de m dicament Un moment d inattention lors de l utilisation d un outil lectrique peut entra ner de s rieu...

Page 17: ...LAISSEZ PAS le confort ou la connaissance du produit remplacer l adh rence stricte aux r gles de s curit au produit sans fil Si vous utilisez cet outil imprudemment ou incorrectement vous pouvez subir...

Page 18: ...til peut endommager les engrenages 7 Tenez l outil fermement en place assurez vous que la douille est compl tement au dessus de l crou Appliquez l outil une pression vers l avant dans la mesure o la d...

Page 19: ...le apportez la votre centre de service AUTORIS PAR MATCO Le r assemblage incorrect peut avoir comme cons quence un risque de d charge lectrique ou d incendie 12 Afin de r duire le risque de d charge l...

Page 20: ...deux chargeurs ensemble Recharger des piles Matco avec d autres chargeurs Utiliser le chargeur de Matco pour charger d autres piles Utilisation du chargeur avec un cordon ou une prise endommag e UN EN...

Page 21: ...manque d entretien ne sont pas couverts par la garantie PILE MATCO LITHIUM ION 16V MCL1620LB CHARGEUR MCL16CHRG Matco Tools garantit ses piles et chargeurs 16V contre tout d faut de fabrication ou de...

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