RIDGID R4120 Operator'S Manual Download Page 3

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WARNING:

Read and understand all instructions. Failure to 
follow  all  instructions  listed  below,  may  result  in 
electric shock, fire and/or serious personal injury.

READ ALL INSTRUCTIONS

 

KNOW YOUR POWER TOOL. Read the operator’s manual 
carefully. Learn the applications and limitations as well 
as the specific potential hazards related to this tool.

 

GUARD AGAINST ELECTRICAL ShOCK BY PREVENT-
ING BODY CONTACT WITh GROUNDED SURFACES. 
For example: pipes, radiators, ranges, refrigerator enclo-
sures.

 

KEEP GUARDS IN PLACE and in good working order.

 

REMOVE ADJUSTING KEYS AND WRENChES. Form 
habit of checking to see that keys and adjusting wrenches 
are removed from tool before turning it on.

 

KEEP WORK AREA CLEAN. Cluttered areas and benches 
invite accidents.

 DO NOT leave tools or pieces of wood 

on the tool while it is in operation.

 

DO NOT USE IN DANGEROUS ENVIRONMENTS. Do 
not use power tools in damp or wet locations or expose 
to rain. Keep the work area well lit.

 

KEEP  ChILDREN  AND  VISITORS  AWAY.  All  visi-
tors  should  wear  safety  glasses  and  be  kept  a  safe 
distance  from  work  area.  Do  not  let  visitors  contact 
tool or extension cord while operating.

 

MAKE  WORKShOP  ChILDPROOF  with  padlocks, 
master switches, or by removing starter keys.

 

DON’T FORCE ThE TOOL. It will do the job better and 
safer at the feed rate for which it was designed.

 

USE ThE RIGhT TOOL. Do not force the tool or attach-
ment to do a job for which it was not designed.

 

USE ThE PROPER ExTENSION CORD. Make sure your 
extension cord is in good condition. Use only a cord heavy 
enough to carry the current your product will draw. An 
undersized cord will cause a drop in line voltage result-
ing in loss of power and overheating. A wire gauge size 
(A.W.G.) of at least 

14 is recommended for an extension 

cord 25 feet or less in length. If in doubt, use the next 
heavier gauge. The smaller the gauge number, the heavier 
the cord.

 

DRESS PROPERLY. Do not wear loose clothing, neckties, 
or jewelry that can get caught and draw you into moving 
parts. Rubber gloves and nonskid footwear are recom-
mended when working outdoors. Also wear protective 
hair covering to contain long hair.

  ALWAYS  WEAR  SAFETY  GLASSES  WITh  SIDE 

ShIELDS.  Everyday  eyeglasses  have  only  impact- 
resistant lenses, they are 

NOT safety glasses.

GENERAL SAFETY RULES

 

SECURE  WORK.  Use  clamps  or  a  vise  to  hold  work  
when  practical,  it  is  safer  than  using  your  hand  and  
frees both hands to operate the tool.

 

DO  NOT  OVERREACh.  Keep  proper  footing  and 
balance at all times.

 

MAINTAIN  TOOLS  WITh  CARE.  Keep  tools  sharp 
and clean for better and safer performance. Follow instruc-
tions for lubricating and changing accessories.

 

DISCONNECT  TOOLS.  When  not  in  use,  before 
servicing, or when changing attachments, blades, bits, 
cutters, etc., all tools should be disconnected from power 
source.

 

AVOID ACCIDENTAL STARTING. Be sure switch is off 
when plugging in any tool.

 

USE  RECOMMENDED  ACCESSORIES.  Consult  the 
operator’s  manual  for  recommended  accessories.  The 
use of improper accessories may result in injury.

 

NEVER STAND ON TOOL. Serious injury could occur if 
the tool is tipped or if the cutting tool is unintentionally 
contacted.

 

ChECK DAMAGED PARTS. Before further use of the 
tool, a guard or other part that is damaged should be 
carefully checked to determine that it will operate properly 
and perform its intended function. Check for alignment 
of moving parts, binding of moving parts, breakage of 
parts, mounting and any other conditions that may affect 
its operation. A guard or other part that is damaged must 
be properly repaired or replaced by an authorized service 
center to avoid risk of personal injury.

 

USE ThE RIGhT DIRECTION OF FEED. Feed work into 
a blade, cutter, or sanding spindle against the direction 
or rotation of the blade, cutter, or sanding spindle only.

 

NEVER LEAVE TOOL RUNNING UNATTENDED. TURN 
ThE POWER OFF. 
Don't leave tool until it comes to a 
complete stop.

 

PROTECT YOUR LUNGS. Wear a face or dust mask if 
the cutting operation is dusty.

 

PROTECT  YOUR  hEARING.  Wear  hearing  protection 
during extended periods of operation.

 

DO NOT ABUSE CORD. Never carry tool by the cord or 
yank it to disconnect from receptacle. Keep cord from 
heat, oil, and sharp edges.

 

USE  OUTDOOR  ExTENSION  CORDS.  When  tool  
is  used  outdoors,  use  only  extension  cords  with  
approved ground connection that are intended for use 
outdoors and so marked.

 

KEEP  BLADES  CLEAN,  ShARP,  AND  WITh  
SUFFICIENT  SET.
  Sharp  blades  minimize  stalling  
and kickback.

 

BLADE COASTS AFTER BEING TURNED OFF.

Summary of Contents for R4120

Page 1: ...gineered and manufactured to our high standard for dependability ease of operation and operator safety When properly cared for it will give you years of rugged trouble free performance WARNING To redu...

Page 2: ...Needed 13 Loose Parts 13 Assembly 14 22 Operation 23 31 Adjustments 32 Maintenance 33 34 Warranty 35 Parts Ordering Service 36 INTRODUCTION This tool has many features for making its use more pleasan...

Page 3: ...GLASSES WITH SIDE SHIELDS Everyday eyeglasses have only impact resistant lenses they are not safety glasses GENERAL SAFETY RULES SECURE WORK Use clamps or a vise to hold work when practical it is safe...

Page 4: ...OL WHEN ANY ROTATiNG COM PONENT IS IN CONTACT WITH THE WORKPIECE DO NOT operate A tool while under the influence of drugs alcohol or any medication When servicing use only identical replacement parts...

Page 5: ...he work and that no obstructions will interfere with safe operation BEFORE performing any work using your saw ALWAYS TURN OFF THE SAW before disconnecting it to avoid accidental starting when reconnec...

Page 6: ...peed orbits etc per minute Do not expose to rain or use in damp locations To reduce the risk of injury user must read and understand opera tor s manual before using this product Eye Protection Precaut...

Page 7: ...h can result in severe eye damage Before beginning power tool operation always wear safety goggles or safety glasses with side shields and a full face shield when needed We recommend Wide Vision Safet...

Page 8: ...e check the power supply EXTENSION CORDS When using a power tool at a considerable distance from a power source be sure to use an extension cord that has the capacity to handle the current the product...

Page 9: ...dropped into the blade or being placed inadvertently in contact with the blade Workpiece or Material The item on which the operation is being done Worktable Surface where the workpiece rests while pe...

Page 10: ...ter at 45 Bevel 0 Maximum nominal lumber sizes 2 x 6 Cutting Capacity with Miter at 0 Bevel 45 Maximum nominal lumber sizes 2 x 8 Cutting Capacity with Miter at 45 Bevel 45 Maximum nominal lumber size...

Page 11: ...stops at 3 and 48 BEVEL LOCK KNOB The bevel lock knob securely locks your compound miter saw at desired bevel angles BLADE wrench storage A blade wrench is packed with this saw One end of the wrench...

Page 12: ...made of shock resistant see through plastic that provides protection from each side of the blade It retracts over the upper blade guard as the saw is lowered into the workpiece SPINDLE LOCK BUTTON Se...

Page 13: ...nsion Socket Head Screw 2 Laser Guide Blade Bolt Blade Operator s Manual not shown Fig 7 WARNING The use of attachments or accessories not listed might be hazardous and could cause serious personal in...

Page 14: ...alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury WARNING Do not connect to power supply until assembly is complete Failure to...

Page 15: ...ocket head screw and washer into the two holes in the side of the miter saw base Lay a framing square flat on the table extension and saw base Place the square against the fence on the table extension...

Page 16: ...r to beginning any cutting operation to reduce the risk of serious personal injury The work clamp provides greater control by clamping the workpiece to the fence It also prevents the workpiece from cr...

Page 17: ...er blade washer or laser guide where they contact the blade WARNING If inner blade washer has been removed replace it before placing blade on spindle Failure to do so could cause an accident since bla...

Page 18: ...to move the workpiece while making a cut Always keep hands outside the No Hands Zone Make several practice cuts on different styles and thick ness of material To Remove Your Mark Position the laser li...

Page 19: ...W BLADE TO THE FENCE See Figures 17 22 Unplug the saw Pull the saw arm all the way down and lock in transport position Lift the miter lock lever Rotate the miter table until the pointer on the miter s...

Page 20: ...Fig 20 Loosen the socket head screws that secure the fence to the miter table See Figure 18 Rotate the fence left or right until the saw blade is parallel with the square Retighten the socket head scr...

Page 21: ...square as shown in figures 24 and 25 adjustments are needed Loosen the bevel lock knob Usingthebladewrench loosenthebevelstopadjustment screw and slide the bevel stop left or right as needed to bring...

Page 22: ...f or if there is play in the pivot joints have saw repaired at your nearest AUTHORIZED SERVICE CENTER Bevel Pivot Adjustment The compound miter saw should bevel easily by loosening the bevel lock knob...

Page 23: ...ithout checking for interference between the blade and the miter fence Damage could result to the blade if it strikes the miter fence during operation of the saw Failure to heed this warning can also...

Page 24: ...d place the convex side against the fence If the concave edge of a board is placed against the fence the board could collapse on the blade at the end of the cut jamming the blade See Figures 36 37 Whe...

Page 25: ...with one edge securely against the fence If the board is warped place the convex side against the fence If the concave edge of a board is placed against the fence the board could collapse on the blade...

Page 26: ...on the miter scale NOTE You can quickly locate 0 15 22 5 31 6 and 45 left or right by spinning the miter thumbwheel up The lock plate will seat itself in one of the positive stop notches located in t...

Page 27: ...saw and miter table during the cutting operation Use the work clamp to secure the workpiece NOTE When making a compound miter cut as shown in figure 32 it may be necessary to adjust or remove the sli...

Page 28: ...2 B 11 60 M 28 48 B 9 85 M 24 35 B 8 53 M 21 27 B 7 52 M 18 88 B 6 72 M 16 98 B 6 07 M 33 36 B 14 38 M 27 62 B 12 20 M 23 56 B 10 57 M 20 58 B 9 31 M 18 26 B 8 31 M 16 41 B 7 50 M 32 18 B 17 09 M 26 5...

Page 29: ...62 33 85 31 17 33 53 30 73 33 19 30 30 32 85 29 86 32 51 29 43 32 17 29 00 31 82 28 58 31 48 28 16 31 13 27 74 30 78 27 32 30 43 26 91 30 08 26 50 29 73 26 09 29 38 25 69 29 02 25 29 28 67 24 89 28 3...

Page 30: ...together equal exactly 90 Most crown molding has a top rear angle the section that fits flat against the ceiling of 52 and a bottom rear angle the section that fits flat against the wall of 38 Laying...

Page 31: ...onal injury never position the concave edge of bowed or warped material against the fence Bevel Angle Type of Cut Setting Left side inside corner 1 Top edge of molding against fence 2 Miter table set...

Page 32: ...score the wood Raise the saw arm and unplug the saw Lift and hold the lower blade guard Rotate the blade by hand until you can push and hold the laser button and the laser mark is near the center of t...

Page 33: ...alified service technician at an authorized service center to avoid risk of per sonal injury Some areas will require infrequent lubrications You will need to apply Automotive oil directly to the slide...

Page 34: ...5 volt and 100 mAh milliampere hour minimum number 76 series or equivalent When replacing the batteries the laser guide should be thoroughly cleaned Use a soft paintbrush or similar device to remove...

Page 35: ...at www ridgid com When requesting warranty service you must present the original dated sales receipt The authorized service center will repair any faulty workmanship and either repair or replace any p...

Page 36: ...center nearest you please call 1 866 539 1710 or visit us online at www ridgid com The model number of this tool is found on a plate attached to the motor housing Please record the serial number in t...

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