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RIDGID R4120, Operator'S Manual

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RIDGID R4120 Operator'S Manual Download Page 28

28

CUTTING COMPOUND MITERS

To aid in making the correct settings, the compound angle setting chart below has been provided. Since compound cuts are 
the most difficult to accurately obtain, trial cuts should be made in scrap material, and much thought and planning made, 
prior to making your required cut.

4

 pitCh

 oF siDe

nuMber oF siDes

0°

6

M- 45.00°
B-    0.00°

5°

10°

15°

20°

25°

30°

35°

40°

45°

50°

55°

60°

65°

70°

75°

80°

85°

90°

5

7

8

9

10

M- 36.00°
B-    0.00°

M- 30.00°
B-   0.00°

M- 25.71°
B-    0.00°

M- 22.50°
B-   0.00°

M- 20.00°
B-    0.00°

M- 18.00°
B-    0.00°

Each B (Bevel) and M (Miter) Setting is Given to the Closest 0.005°.

COMPOUND-ANGLE SETTINGS FOR POPULAR STRUCTURES

M- 44.89°
B-   3.53°

M- 35.90°
B-   2.94°

M- 29.91°
B-   2.50°

M- 25.63°
B-   2.17°

M- 22.42°
B-   1.91°

M- 19.93°
B-   1.71°

M- 17.94°
B-   1.54°

M-   7.82°
B -16.26°

M- 14.51°
B- 43.08°

M- 44.56°
B-   7.05°

M- 35.58°
B-   5.86°

M- 29.62°
B-   4.98°

M- 25.37°
B-   4.32°

M- 22.19°
B-   3.81°

M- 19.72°
B-   3.40°

M- 17.74°
B-   3.08°

M- 44.01°
B- 10.55°
M- 43.22°
B- 14.00°
M- 42.19°
B- 17.39°

M-   4.98°
B- 44.78°
M-   0.00°
B- 45.00°

M-   9.85°
B- 44.14°

M- 18.88°
B- 41.64°

M- 22.91°
B- 39.86°

M- 26.57°
B- 37.76°

M- 29.84°
B- 35.40°

M- 32.73°
B- 32.80°

M- 35.26°
B-  30.00°

M- 37.45°
B- 27.03°

M- 39.32°
B- 23.93°

M- 40.89°
B- 20.70°

M- 35.06°
B-   8.75°

M- 29.15°
B-   7.44°

M- 24.95°
B-   6.45°

M- 21.81°
B-   5.68°

M- 19.37°
B-   5.08°

M- 17.42°
B-   4.59°

M- 34.32°
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- 26.57°
B- 14.48°

M- 22.64°
B- 12.53°

M- 19.73°
B- 11.03°

M- 17.50°
B-   9.85°

M- 15.72°
B-   8.89°

M- 30.76°
B- 19.70°

M- 25.31°
B- 16.67°

M- 21.53°
B- 14.41°

M- 18.74°
B- 12.68°

M- 16.60°
B- 11.31°

M- 14.90°
B- 10.21°

M- 29.10°
B- 22.20°

M- 23.86°
B- 18.75°

M- 20.25°
B- 16.19°

M- 17.60°
B- 14.24°

M- 15.58°
B- 12.70°

M- 13.98°
B- 11.46°

M-   0.00°
B- 36.00°

M-   0.00°
B- 30.00°

M-   0.00°
B- 25.71°

M-   0.00°
B- 22.50°

M-   0.00°
B- 20.00°

M-   0.00°
B- 18.00°

M-   3.62°
B- 35.84°

M-   2.88°
B- 29.87°

M-   2.40°
B- 25.61°

M-  2.07°
B- 22.41°

M-  1.82°
B- 19.92°

M-   1.62°
B- 17.93°

M-   7.19°
B- 35.37°

M-   5.73°
B- 29.50°

M-   4.78°
B- 25.30°

M-   4.11°
B- 22.14°

M-   3.62°
B- 19.68°

M-   3.23°
B- 17.72°

M- 10.65°
B- 34.59°

M-   8.50°
B- 28.88°

M-   7.10°
B- 24.78°

M-   6.12°
B- 21.69°

M-   5.38°
B- 19.29°

M-   4.81°
B- 17.37°

M- 13.95°
B- 33.53°

M- 11.17°
B- 28.02°

M-   9.35°
B- 24.06°

M-   8.06°
B- 21.08°

M-   7.10°
B- 18.75°

M-   6.34°
B- 16.88°

M- 17.07°
B- 32.19°

M- 13.71°
B- 26.95°

M- 11.50°
B- 23.16°

M-   9.93°
B- 20.29°

M-   8.74°
B- 18.06°

M- 19.96°
B- 30.60°

M- 16.10°
B- 25.66°

M- 13.54°
B- 22.07°

M- 11.70°
B- 19.35°

M- 10.31°
B- 17.23°

M-   9.23°
B- 15.52°

M- 22.62°
B- 28.78°

M- 18.32°
B- 24.18°

M- 15.44°
B-  20.82°

M- 13.36°
B- 18.27°

M- 11.79°
B- 16.27°

M- 10.56°
B- 14.66°

M- 25.03°
B- 26.76°

M- 20.36°
B- 22.52°

M- 17.20°
B- 19.41°

M- 14.91°
B- 17.05°

M- 13.17°
B- 15.19°

M- 11.80°
B- 13.69°

M- 27.19°
B- 24.56°

M- 22.21°
B- 20.70°

M- 18.80°
B- 17.87°

M- 16.32°
B- 15.70°

M- 14.43°
B- 14.00°

M- 12.94°
B- 12.62°

OPERATION

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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