Product Instruction Manual
Page 20
... fall For an open-face cut: N Properly place felling notch perpendicular to the line of fall, close to the ground. N Remove resulting 90° piece. 18 MS 271, MS 291, MS 291 C determines the direction of the fall For a conventional cut from below at approx. 50° angle to a depth of approx.1/5 to the line of...
... fall For an open-face cut: N Properly place felling notch perpendicular to the line of fall, close to the ground. N Remove resulting 90° piece. 18 MS 271, MS 291, MS 291 C determines the direction of the fall For a conventional cut from below at approx. 50° angle to a depth of approx.1/5 to the line of...
Product Instruction Manual
Page 55
Main Parts 13 7 14 3 2 1 4 6 7 # 5 10 11 9 12 8 18 17 1 16 15 19 20 1 22 24 25 23 21 26 English 1 Shroud Lock 2 Carburetor Adjusting Screws 3 Fuel Pump1) 4 Shutter (Summer and Winter Operation) 5 Chain ... Muffler (with Spark Arresting Screen) 17 Front Hand Guard 18 Front Handle (Handlebar) 19 Spark Plug Boot 20 Starter Grip 21 Fuel Filler Cap 22 Master Control Lever 23 Throttle Trigger 24 Throttle Trigger Lockout 25 Rear Handle 26 Rear Hand Guard # Serial Number 2710BA002 KN MS 271, MS 291, MS 291 C 1) Depending on Model 53
Main Parts 13 7 14 3 2 1 4 6 7 # 5 10 11 9 12 8 18 17 1 16 15 19 20 1 22 24 25 23 21 26 English 1 Shroud Lock 2 Carburetor Adjusting Screws 3 Fuel Pump1) 4 Shutter (Summer and Winter Operation) 5 Chain ... Muffler (with Spark Arresting Screen) 17 Front Hand Guard 18 Front Handle (Handlebar) 19 Spark Plug Boot 20 Starter Grip 21 Fuel Filler Cap 22 Master Control Lever 23 Throttle Trigger 24 Throttle Trigger Lockout 25 Rear Handle 26 Rear Hand Guard # Serial Number 2710BA002 KN MS 271, MS 291, MS 291 C 1) Depending on Model 53
Product Instruction Manual
Page 56
... Trigger Lockout Must be depressed before the throttle trigger can be released to the operator's hands. (not illustrated) 54 MS 271, MS 291, MS 291 C It also serves as the lever for chain brake activation. 18 Front Handle (Handlebar) Handlebar for Quick Chain Tensioner Permits precise adjustment of chain tension. 14 Handle of the saw. 26...
... Trigger Lockout Must be depressed before the throttle trigger can be released to the operator's hands. (not illustrated) 54 MS 271, MS 291, MS 291 C It also serves as the lever for chain brake activation. 18 Front Handle (Handlebar) Handlebar for Quick Chain Tensioner Permits precise adjustment of chain tension. 14 Handle of the saw. 26...
Product Instruction Manual
Page 57
... kickback guide bars (with green label) Bar lengths: 16, 18, 20 in. (40, 45, 50 cm) Pitch: 0.325" (8.25 mm) Groove width: 0.063 in. (1.6 mm) Sprocket nose: 11 tooth Saw chains 0.325" STIHL reduced kickback saw chain" in the section "Safety Precautions and Working Techniques....5 cm3) Bore: 1.85 in. (47.0 mm) Stroke: 1.26 in . (1.6 mm) MS 271, MS 291, MS 291 C 55 Category A = 300 hours B = 125 hours C = 50 hours Engine STIHL single cylinder two-stroke engine MS 271, MS 271 C Displacement: 3.06 cu. Specifications EPA / CEPA The Emission Compliance Period referred to on ...
... kickback guide bars (with green label) Bar lengths: 16, 18, 20 in. (40, 45, 50 cm) Pitch: 0.325" (8.25 mm) Groove width: 0.063 in. (1.6 mm) Sprocket nose: 11 tooth Saw chains 0.325" STIHL reduced kickback saw chain" in the section "Safety Precautions and Working Techniques....5 cm3) Bore: 1.85 in. (47.0 mm) Stroke: 1.26 in . (1.6 mm) MS 271, MS 291, MS 291 C 55 Category A = 300 hours B = 125 hours C = 50 hours Engine STIHL single cylinder two-stroke engine MS 271, MS 271 C Displacement: 3.06 cu. Specifications EPA / CEPA The Emission Compliance Period referred to on ...
Parts List
Page 2
... 5205 12 0000 664 2404 13 0000 664 2411 14 0000 664 2407 15 0000 664 2403 16 1117 640 3800 17 1141 647 9401 18 1141 791 5902 19 0000 350 0504 20 9645 948 7734 21 1141 141 7500 22 9074 477 4130 23 1141 656 7700 24 9074... 1 Filler cap ☐ 20 1 Oring 25x3.5 1 Pre-separator 1 Pan head self-tapping screw IS-P5x16 1 Chain catcher 1 Pan head self-tapping screw IS-P6x30 (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 2 SCS 01-2011 3.33
... 5205 12 0000 664 2404 13 0000 664 2411 14 0000 664 2407 15 0000 664 2403 16 1117 640 3800 17 1141 647 9401 18 1141 791 5902 19 0000 350 0504 20 9645 948 7734 21 1141 141 7500 22 9074 477 4130 23 1141 656 7700 24 9074... 1 Filler cap ☐ 20 1 Oring 25x3.5 1 Pre-separator 1 Pan head self-tapping screw IS-P5x16 1 Chain catcher 1 Pan head self-tapping screw IS-P6x30 (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 2 SCS 01-2011 3.33
Parts List
Page 4
... 4725 12 1141 028 0201 13 1141 140 2500 14 9022 313 0660 15 1141 030 0401 16 9523 003 4301 17 9638 003 1581 18 9639 951 1584 19 9468 621 1520 20 1141 149 0600 21 1141 140 0611 22 1141 140 0613 23 1135 145 9002 Qty Description...-tapping screw M4x9.6 (2,5,7,9) USA 26 9075 478 4085 2 Pan head self-tapping screw IS-D5x18 27 0783 830 2000 1 Tube of sealant Dirko HT red (B) (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 4 SCS 01-2011 3.33
... 4725 12 1141 028 0201 13 1141 140 2500 14 9022 313 0660 15 1141 030 0401 16 9523 003 4301 17 9638 003 1581 18 9639 951 1584 19 9468 621 1520 20 1141 149 0600 21 1141 140 0611 22 1141 140 0613 23 1135 145 9002 Qty Description...-tapping screw M4x9.6 (2,5,7,9) USA 26 9075 478 4085 2 Pan head self-tapping screw IS-D5x18 27 0783 830 2000 1 Tube of sealant Dirko HT red (B) (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 4 SCS 01-2011 3.33
Parts List
Page 8
... 160 5000 14 1125 162 7905 15 1141 160 5411 16 1141 160 5416 17 18 19 0000 958 1022 Qty Description 1 Lever (1-7) 1 Lever 1 Spring 1 E-clip...18 1 Chain sprocket 3/8" 7T (D) (8) 1 Chain sprocket 0.325" 7T (D) (8,9) 1 Washer Ø 27 mm (8,9) 20 9460 624 0801 1 E-clip 8x1.3 (8,9) 21 1141 021 1101 1 Cover (1,2,4,5) 22 1141 021 1103 1 Cover (3,6-9) 23 9074 477 2995 3 Pan head self-tapping screw IS-P4x12 (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291...
... 160 5000 14 1125 162 7905 15 1141 160 5411 16 1141 160 5416 17 18 19 0000 958 1022 Qty Description 1 Lever (1-7) 1 Lever 1 Spring 1 E-clip...18 1 Chain sprocket 3/8" 7T (D) (8) 1 Chain sprocket 0.325" 7T (D) (8,9) 1 Washer Ø 27 mm (8,9) 20 9460 624 0801 1 E-clip 8x1.3 (8,9) 21 1141 021 1101 1 Cover (1,2,4,5) 22 1141 021 1103 1 Cover (3,6-9) 23 9074 477 2995 3 Pan head self-tapping screw IS-P4x12 (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291...
Parts List
Page 10
... sprocket cover (3,6-9) ☐ 18 - 21 18 1135 656 1500 1 Guard (3,6-9) 19 9076 478 2996 1 Pan head self-tapping screw P4x12 (3,6-9) 20 1135 648 3800 1 Cover plate (3,6-9) 21 1121 648 2200 1 Adjusting wheel (3,6-9) 22 1121 660 1000 1 Wing nut (3,6-9) (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 10 SCS 01-2011...
... sprocket cover (3,6-9) ☐ 18 - 21 18 1135 656 1500 1 Guard (3,6-9) 19 9076 478 2996 1 Pan head self-tapping screw P4x12 (3,6-9) 20 1135 648 3800 1 Cover plate (3,6-9) 21 1121 648 2200 1 Adjusting wheel (3,6-9) 22 1121 660 1000 1 Wing nut (3,6-9) (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 10 SCS 01-2011...
Parts List
Page 14
... Washer (3,6-9) 15 1141 988 8600 1 Sleeve (3,6-9) 16 1141 195 9004 1 Washer (3,6-9) 17 1123 190 0600 1 Rewind spring (3,6-9) 18 1141 195 0400 1 Rope rotor (3,6-9) 19 1123 195 7200 2 Pawl (3,6-9) 20 1128 195 3500 1 Spring (3,6-9) 21 1141 190 0700... plate MS 271 (1,2) 30 1141 967 1505 1 Model plate MS 271 C (3) 31 1141 967 1503 1 Model plate MS 291 (4,5) 32 1141 967 1507 1 Model plate MS 291C (6-9) (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 14...
... Washer (3,6-9) 15 1141 988 8600 1 Sleeve (3,6-9) 16 1141 195 9004 1 Washer (3,6-9) 17 1123 190 0600 1 Rewind spring (3,6-9) 18 1141 195 0400 1 Rope rotor (3,6-9) 19 1123 195 7200 2 Pawl (3,6-9) 20 1128 195 3500 1 Spring (3,6-9) 21 1141 190 0700... plate MS 271 (1,2) 30 1141 967 1505 1 Model plate MS 271 C (3) 31 1141 967 1503 1 Model plate MS 291 (4,5) 32 1141 967 1507 1 Model plate MS 291C (6-9) (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 14...
Parts List
Page 18
... 0504 1 Filler cap ☐ 15 15 9645 948 7734 1 Oring 25x3.5 16 0000 967 3632 1 Warning pictogram MS (1-7) 17 0000 967 4011 1 Warning pictogram QS (8,9) 18 0000 967 3500 1 Instruction label (2,5,9) 19 0000 967 4012 1 Instruction label (9) (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 18 SCS 01-2011 3.33
... 0504 1 Filler cap ☐ 15 15 9645 948 7734 1 Oring 25x3.5 16 0000 967 3632 1 Warning pictogram MS (1-7) 17 0000 967 4011 1 Warning pictogram QS (8,9) 18 0000 967 3500 1 Instruction label (2,5,9) 19 0000 967 4012 1 Instruction label (9) (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 18 SCS 01-2011 3.33
Parts List
Page 20
... 12 1138 791 5903 13 1140 791 5901 14 1141 791 5902 15 1141 122 9902 16 1141 791 1700 17 1141 791 1702 18 9074 478 4675 Qty Description 1 Annular buffer (1,3,4,6,8) 1 Annular buffer (2,5,7,9) 1 Bearing plug 1 Spring 1 Spring 1 Bearing plug 1... (1,3,4,6,8) 1 Stop buffer (2,5,7,9) 1 Stop buffer 2 Buffer 1 Handlebar (1,2,4,5) 1 Handlebar (3,6-9) 4 Pan head self-tapping screw IS-P6x32.5 (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 20 SCS 01-2011 3.33
... 12 1138 791 5903 13 1140 791 5901 14 1141 791 5902 15 1141 122 9902 16 1141 791 1700 17 1141 791 1702 18 9074 478 4675 Qty Description 1 Annular buffer (1,3,4,6,8) 1 Annular buffer (2,5,7,9) 1 Bearing plug 1 Spring 1 Spring 1 Bearing plug 1... (1,3,4,6,8) 1 Stop buffer (2,5,7,9) 1 Stop buffer 2 Buffer 1 Handlebar (1,2,4,5) 1 Handlebar (3,6-9) 4 Pan head self-tapping screw IS-P6x32.5 (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 20 SCS 01-2011 3.33
Parts List
Page 22
... 14 1141 141 0900 1 Filter base 15 1141 122 9902 2 Buffer 16 1141 121 6900 1 Baffle 17 9216 261 0700 2 Hexagon nut M5 18 1141 120 1600 1 Air filter, fleece 19 1141 120 1604 1 Air filter HD2 (B) 20 1141 080 1601 1 Shroud (1,2,4,5) ☐ 22 21 ...-M5x14 23 0000 967 3749 1 Warning pictogram Filler cap (2,5,7,9) USA 24 0000 967 4055 1 Warning Spark arresting screen (2,5,7,9) USA (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 22 SCS 01-2011 3.33
... 14 1141 141 0900 1 Filter base 15 1141 122 9902 2 Buffer 16 1141 121 6900 1 Baffle 17 9216 261 0700 2 Hexagon nut M5 18 1141 120 1600 1 Air filter, fleece 19 1141 120 1604 1 Air filter HD2 (B) 20 1141 080 1601 1 Shroud (1,2,4,5) ☐ 22 21 ...-M5x14 23 0000 967 3749 1 Warning pictogram Filler cap (2,5,7,9) USA 24 0000 967 4055 1 Warning Spark arresting screen (2,5,7,9) USA (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 22 SCS 01-2011 3.33
Parts List
Page 24
... head screw 15 1141 122 6800 1 Low speed adjustment screw 16 1141 122 6700 1 High speed adjustment screw 17 1141 121 2702 1 Cap 18 1141 121 2700 1 Cap 19 1141 122 6200 1 Idle speed adjustment screw 20 1123 121 7800 1 Strainer 21 1141 121 6600 1 Lever ....5 23 1141 121 9402 1 Ring 24 1141 121 0802 1 End cover (3,6-9) 1141 007 1006 1 Set of carburetor parts (B) ☐ 6, 7, 11, 12 (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 24 SCS 01-2011 3.33
... head screw 15 1141 122 6800 1 Low speed adjustment screw 16 1141 122 6700 1 High speed adjustment screw 17 1141 121 2702 1 Cap 18 1141 121 2700 1 Cap 19 1141 122 6200 1 Idle speed adjustment screw 20 1123 121 7800 1 Strainer 21 1141 121 6600 1 Lever ....5 23 1141 121 9402 1 Ring 24 1141 121 0802 1 End cover (3,6-9) 1141 007 1006 1 Set of carburetor parts (B) ☐ 6, 7, 11, 12 (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 24 SCS 01-2011 3.33
Parts List
Page 26
... 1125 182 4502 14 9517 003 0650 15 1141 180 1400 16 1141 160 2500 17 1141 182 1600 18 9074 478 2970 19 9074 478 2970 20 1141 791 0603 Qty Description 1 Throttle trigger (1-7) 1 Torsion ... roller 3x25.8 (8,9) 1 Lever (8,9) 1 Brake cable (8,9) ☐ 17, 18 1 Support (8,9) 1 Pan head self-tapping screw IS-P4x10 (8,9) 1 Pan head self-tapping screw IS-P4x10 (8,9) 1 Handle molding (8,9) (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 26 SCS 01-2011 3.33
... 1125 182 4502 14 9517 003 0650 15 1141 180 1400 16 1141 160 2500 17 1141 182 1600 18 9074 478 2970 19 9074 478 2970 20 1141 791 0603 Qty Description 1 Throttle trigger (1-7) 1 Torsion ... roller 3x25.8 (8,9) 1 Lever (8,9) 1 Brake cable (8,9) ☐ 17, 18 1 Support (8,9) 1 Pan head self-tapping screw IS-P4x10 (8,9) 1 Pan head self-tapping screw IS-P4x10 (8,9) 1 Handle molding (8,9) (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE, (4) MS 291, (5) MS 291-Z, (6) MS 291 C-BE, (7) MS 291 C-BE Z, (8) MS 291 C-BEQ, (9) MS 291 C-BEQ Z MS 271, MS 271 C, MS 291, MS 291 C 26 SCS 01-2011 3.33