Product Instruction Manual
Page 22
... not fall , withdraw the bar, shut off the ground. Warning! Cut until the depth of the kerf is cutting a log into sections. 001BA033 KN 20 MS 311, MS 391 Warning! If a pinch occurs, stop the engine and remove the saw aside and pull the tree down with the nose of the trunk may split...
... not fall , withdraw the bar, shut off the ground. Warning! Cut until the depth of the kerf is cutting a log into sections. 001BA033 KN 20 MS 311, MS 391 Warning! If a pinch occurs, stop the engine and remove the saw aside and pull the tree down with the nose of the trunk may split...
Product Instruction Manual
Page 31
... position s (summer operation) without fail, otherwise the engine may malfunction due to overheating 0001BA003 KN MS 311, MS 391 29 r facing upwards N Refit the shroud and tighten the screws Heated air is subject to have...cylinder and circulates around the carburetor - this helps prevent carburetor icing. At temperatures above +70 °F (+20 °C) N Ensure that the slide is necessary to normal wear. The hand guard must not rotate. ... regularly by trained personnel, such as your STIHL servicing dealer, at idle speed, engage the chain brake (push hand guard toward bar nose).
... position s (summer operation) without fail, otherwise the engine may malfunction due to overheating 0001BA003 KN MS 311, MS 391 29 r facing upwards N Refit the shroud and tighten the screws Heated air is subject to have...cylinder and circulates around the carburetor - this helps prevent carburetor icing. At temperatures above +70 °F (+20 °C) N Ensure that the slide is necessary to normal wear. The hand guard must not rotate. ... regularly by trained personnel, such as your STIHL servicing dealer, at idle speed, engage the chain brake (push hand guard toward bar nose).
Product Instruction Manual
Page 37
... flow rate - every time you sharpen the chain and every time you replace the chain - Chain type Picco Rapid Rapid Rapid Pitch Minimum groove depth 3/8" P 0.20" (5.0 mm) 1/4" 0.16" (4.0 mm) 3/8"; 0.325" 0.24" (6.0 mm) 0.404" 0.28" (7.0 mm) If groove depth is a special option. the cutters... oil feed rate as required. To increase oil feed - N turn the adjusting screw counterclockwise. N turn the adjusting screw clockwise. MS 311, MS 391 35 with a film of lubricant. 001BA157 KN 143BA026 KN Taking Care of oil are required for cutting. English Oil Quantity Control Adjustable...
... flow rate - every time you sharpen the chain and every time you replace the chain - Chain type Picco Rapid Rapid Rapid Pitch Minimum groove depth 3/8" P 0.20" (5.0 mm) 1/4" 0.16" (4.0 mm) 3/8"; 0.325" 0.24" (6.0 mm) 0.404" 0.28" (7.0 mm) If groove depth is a special option. the cutters... oil feed rate as required. To increase oil feed - N turn the adjusting screw counterclockwise. N turn the adjusting screw clockwise. MS 311, MS 391 35 with a film of lubricant. 001BA157 KN 143BA026 KN Taking Care of oil are required for cutting. English Oil Quantity Control Adjustable...
Product Instruction Manual
Page 50
... chamber Decoke after first 139 hours of operating, then every 150 hours Check X Chain catcher Replace Safety labels Replace 1) STIHL recommends a STIHL servicing dealer. 2) see chapter on "Chain Brake" 3) Firmly tighten down the cylinder base screws of professional saws (3.4 kW... use the saw occasionally, extend the intervals accordingly. English The following intervals apply to 20 hours of operation. 4) not in all versions, market-specific X X X X X X X X X X 48 MS 311, MS 391 before starting work after finishing work area, resinrich wood, tropical wood, etc.), shorten the...
... chamber Decoke after first 139 hours of operating, then every 150 hours Check X Chain catcher Replace Safety labels Replace 1) STIHL recommends a STIHL servicing dealer. 2) see chapter on "Chain Brake" 3) Firmly tighten down the cylinder base screws of professional saws (3.4 kW... use the saw occasionally, extend the intervals accordingly. English The following intervals apply to 20 hours of operation. 4) not in all versions, market-specific X X X X X X X X X X 48 MS 311, MS 391 before starting work after finishing work area, resinrich wood, tropical wood, etc.), shorten the...
Product Instruction Manual
Page 51
Main Parts 3 5 2 4 # 1 6 11 7 12 8 10 9 13 16 17 15 18 20 22 19 23 21 14 24 English 1 Shroud Lock 2 Carburetor Adjusting Screws 3 Spark Plug Boot 4 Shutter (Summer and Winter Operation) 5 Decompression Valve (Automatically Resetting) 6 Chain ... Muffler (with Spark Arresting Screen, not Fitted on all Markets) 16 Front Hand Guard 17 Front Handle (Handlebar) 18 Starter Grip 19 Fuel Filler Cap 20 Master Control Lever 21 Throttle Trigger 22 Throttle Trigger Lockout 23 Rear Handle 24 Rear Hand Guard # Serial Number 4903BA003 KN...
Main Parts 3 5 2 4 # 1 6 11 7 12 8 10 9 13 16 17 15 18 20 22 19 23 21 14 24 English 1 Shroud Lock 2 Carburetor Adjusting Screws 3 Spark Plug Boot 4 Shutter (Summer and Winter Operation) 5 Decompression Valve (Automatically Resetting) 6 Chain ... Muffler (with Spark Arresting Screen, not Fitted on all Markets) 16 Front Hand Guard 17 Front Handle (Handlebar) 18 Starter Grip 19 Fuel Filler Cap 20 Master Control Lever 21 Throttle Trigger 22 Throttle Trigger Lockout 23 Rear Handle 24 Rear Hand Guard # Serial Number 4903BA003 KN...
Product Instruction Manual
Page 52
...Oilomatic Saw Chain A loop consisting of cutters, tie straps and drive links. 14 Oil Filler Cap For closing the fuel tank. 20 Master Control Lever Lever for choke control, starting easier - Is activated in winter position. 5 Decompression Valve (Automatically Resetting) Releases ... Chain Sprocket Cover Covers the clutch and chain sprocket. 9 Chain Catcher Helps to the operator's hands. (not illustrated) 50 MS 311, MS 391 Carburetor is accelerated beyond idle speed. (not illustrated) Anti-Vibration System The anti-vibration system includes a number of anti-vibration elements...
...Oilomatic Saw Chain A loop consisting of cutters, tie straps and drive links. 14 Oil Filler Cap For closing the fuel tank. 20 Master Control Lever Lever for choke control, starting easier - Is activated in winter position. 5 Decompression Valve (Automatically Resetting) Releases ... Chain Sprocket Cover Covers the clutch and chain sprocket. 9 Chain Catcher Helps to the operator's hands. (not illustrated) 50 MS 311, MS 391 Carburetor is accelerated beyond idle speed. (not illustrated) Anti-Vibration System The anti-vibration system includes a number of anti-vibration elements...
Product Instruction Manual
Page 53
..., speed-controlled oil pump with green label) Bar lengths: 16, 18, 20 in. (40, 45, 50 cm) Pitch: 3/8" (9.32 mm) Groove width: 0.050 in. (1.3 mm) or 0.063 in . (1.6 mm) MS 311, MS 391 51 additional manual oil flow control Oil tank capacity: 11.8 oz (0.350 ...l) Weight English dry, without bar and chain MS 311: 14.1 lbs. (6.4 kg) MS 391: 14.1 lbs. (6.4 kg) Cutting attachment Recommended cutting attachments in the section "Safety Precautions and Working Techniques". Rollomatic E guide bars STIHL reduced kickback guide bars (with reciprocating piston - in. (64.1...
..., speed-controlled oil pump with green label) Bar lengths: 16, 18, 20 in. (40, 45, 50 cm) Pitch: 3/8" (9.32 mm) Groove width: 0.050 in. (1.3 mm) or 0.063 in . (1.6 mm) MS 311, MS 391 51 additional manual oil flow control Oil tank capacity: 11.8 oz (0.350 ...l) Weight English dry, without bar and chain MS 311: 14.1 lbs. (6.4 kg) MS 391: 14.1 lbs. (6.4 kg) Cutting attachment Recommended cutting attachments in the section "Safety Precautions and Working Techniques". Rollomatic E guide bars STIHL reduced kickback guide bars (with reciprocating piston - in. (64.1...
Parts Diagram
Page 2
... 007 1003 1 Spur gear / chain adjusting screw kit ☐ 19, 20 19 1 Spur gear (D) 20 1 Adjusting screw (D) 21 1127 640 1900 1 Tensioner slide 22 1123 664 1400 1 Thrust pad 23 1127 664 2200 1 Cover 24 9074 478 3005 1 Pan head self-tapping screw IS-P4x14 (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 2 SCS 01-2010 3.29
... 007 1003 1 Spur gear / chain adjusting screw kit ☐ 19, 20 19 1 Spur gear (D) 20 1 Adjusting screw (D) 21 1127 640 1900 1 Tensioner slide 22 1123 664 1400 1 Thrust pad 23 1127 664 2200 1 Cover 24 9074 478 3005 1 Pan head self-tapping screw IS-P4x14 (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 2 SCS 01-2010 3.29
Parts Diagram
Page 4
... 003 1585 15 9638 003 1581 16 9455 621 1520 17 1140 149 0600 18 1140 140 0653 19 1140 140 0651 20 1135 145 9002 21 1140 140 8100 22 9039 448 0656 23 9022 341 0980 24 0783 830 2000 Qty Description 1 ...Oil seal 15x25x5 (B) (24.96),(39.90) 1 Circlip 15x1 1 Muffler gasket 1 Muffler (1,3) ☐ 20 1 Muffler (2,4) USDA Cert. I.D. 1140/01 USA ☐ 20 - 22 2 Plug 1 spark arresting screen (2,4) 1 Self-tapping screw M4x9.6 (2,4) 2 Spline screw IS-M5x16 1 Tube of sealant Dirko HT red (B) (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 4 SCS 01-2010 3.29
... 003 1585 15 9638 003 1581 16 9455 621 1520 17 1140 149 0600 18 1140 140 0653 19 1140 140 0651 20 1135 145 9002 21 1140 140 8100 22 9039 448 0656 23 9022 341 0980 24 0783 830 2000 Qty Description 1 ...Oil seal 15x25x5 (B) (24.96),(39.90) 1 Circlip 15x1 1 Muffler gasket 1 Muffler (1,3) ☐ 20 1 Muffler (2,4) USDA Cert. I.D. 1140/01 USA ☐ 20 - 22 2 Plug 1 spark arresting screen (2,4) 1 Self-tapping screw M4x9.6 (2,4) 2 Spline screw IS-M5x16 1 Tube of sealant Dirko HT red (B) (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 4 SCS 01-2010 3.29
Parts Diagram
Page 6
... shoe 16 1127 162 3000 3 Retainer 17 0000 997 0911 3 Tension spring 18 1127 162 1000 1 Cover washer 19 9512 933 2260 1 Needle cage 10x13x10 20 1140 640 2000 1 Chain sprocket 3/8" 7T 21 0000 958 1021 1 Washer Ø 33 mm 22 9460 624 0801 1 E-clip 8x1.3 1125 007 1002 1 Rim sprocket... 1 Rim sprocket 0.325" 8T (B) 1125 007 1001 1 Rim sprocket kit 0.325" 7T (B) ☐ 22, 24, 25, 27 27 0000 642 1236 1 Rim sprocket 0.325" 7T (B) (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 6 SCS 01-2010 3.29
... shoe 16 1127 162 3000 3 Retainer 17 0000 997 0911 3 Tension spring 18 1127 162 1000 1 Cover washer 19 9512 933 2260 1 Needle cage 10x13x10 20 1140 640 2000 1 Chain sprocket 3/8" 7T 21 0000 958 1021 1 Washer Ø 33 mm 22 9460 624 0801 1 E-clip 8x1.3 1125 007 1002 1 Rim sprocket... 1 Rim sprocket 0.325" 8T (B) 1125 007 1001 1 Rim sprocket kit 0.325" 7T (B) ☐ 22, 24, 25, 27 27 0000 642 1236 1 Rim sprocket 0.325" 7T (B) (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 6 SCS 01-2010 3.29
Parts Diagram
Page 8
... 1101 14 9074 477 4130 15 1127 664 0500 16 9074 477 4130 17 1121 648 6610 18 1140 640 1700 19 1121 648 6610 20 0000 955 0801 21 0000 660 0850 22 9214 320 0700 23 9008 319 0960 24 0000 967 3630 Qty Description 1 Hand guard 1 Screw assy... 1 Chain sprocket cover ☐ 19 2 Bumper strip 2 Hexagon nut M8 1 Bumper spike (B) ☐ 22, 23 2 Lock nut M5 (B) 2 Hexagon head screw M5x12 (B) 1 Instruction label USA (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 8 SCS 01-2010 3.29
... 1101 14 9074 477 4130 15 1127 664 0500 16 9074 477 4130 17 1121 648 6610 18 1140 640 1700 19 1121 648 6610 20 0000 955 0801 21 0000 660 0850 22 9214 320 0700 23 9008 319 0960 24 0000 967 3630 Qty Description 1 Hand guard 1 Screw assy... 1 Chain sprocket cover ☐ 19 2 Bumper strip 2 Hexagon nut M8 1 Bumper spike (B) ☐ 22, 23 2 Lock nut M5 (B) 2 Hexagon head screw M5x12 (B) 1 Instruction label USA (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 8 SCS 01-2010 3.29
Parts Diagram
Page 14
... 358 7704 5 0000 350 3504 6 0000 350 0525 7 9645 948 7734 8 1140 350 2700 9 4224 122 3900 Qty Description 1 Tank housing ☐ 2 - 7 1 Warning pictogram MS 1 Tank vent 1 Hose 1 Pickup body 1 Filler cap ☐ 7 1 Oring 25x3.5 1 Fuel hose 1 Elbow connector 10 1140 656 1500 1 Guard (B) 11 9074 478... 1 Trigger interlock 17 1140 791 0601 1 Handle molding 18 1140 182 0900 1 Switch shaft 19 1140 442 1600 1 Contact spring 20 1140 185 1900 1 Choke rod 21 1140 182 1500 1 Throttle rod (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 14 SCS 01-2010 3.29
... 358 7704 5 0000 350 3504 6 0000 350 0525 7 9645 948 7734 8 1140 350 2700 9 4224 122 3900 Qty Description 1 Tank housing ☐ 2 - 7 1 Warning pictogram MS 1 Tank vent 1 Hose 1 Pickup body 1 Filler cap ☐ 7 1 Oring 25x3.5 1 Fuel hose 1 Elbow connector 10 1140 656 1500 1 Guard (B) 11 9074 478... 1 Trigger interlock 17 1140 791 0601 1 Handle molding 18 1140 182 0900 1 Switch shaft 19 1140 442 1600 1 Contact spring 20 1140 185 1900 1 Choke rod 21 1140 182 1500 1 Throttle rod (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 14 SCS 01-2010 3.29
Parts Diagram
Page 18
... 9901 14 1140 121 6900 15 9216 261 0700 16 1140 140 4401 17 1140 140 4402 18 1140 140 4500 19 1140 080 1601 20 9022 319 1300 21 0000 967 3749 Qty Description 1 Carburetor bracket 4 Spline screw IS-M4x12 1 Manifold 1 Air guide shroud 2 Pan... 1 Washer 1 Carburetor WTE-9 1 Grommet 1 O-ring 9x1.5 1 Filter housing 2 Buffer 1 Baffle 2 Hexagon nut M5 1 Air filter, fleece 1 Air filter PA (B) 1 Prefilter (B) 1 Shroud ☐ 20 3 Spline screw IS-M6x20 1 Warning pictogram Filler cap (2,4) USA, CDN (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 18 SCS 01-2010 3.29
... 9901 14 1140 121 6900 15 9216 261 0700 16 1140 140 4401 17 1140 140 4402 18 1140 140 4500 19 1140 080 1601 20 9022 319 1300 21 0000 967 3749 Qty Description 1 Carburetor bracket 4 Spline screw IS-M4x12 1 Manifold 1 Air guide shroud 2 Pan... 1 Washer 1 Carburetor WTE-9 1 Grommet 1 O-ring 9x1.5 1 Filter housing 2 Buffer 1 Baffle 2 Hexagon nut M5 1 Air filter, fleece 1 Air filter PA (B) 1 Prefilter (B) 1 Shroud ☐ 20 3 Spline screw IS-M6x20 1 Warning pictogram Filler cap (2,4) USA, CDN (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 18 SCS 01-2010 3.29
Parts Diagram
Page 20
... 0800 14 1114 122 7100 15 1140 120 7100 16 1140 121 2700 17 1140 122 3200 18 1140 121 3300 19 4224 122 7801 20 4203 121 2700 21 1140 122 6700 22 1140 122 6800 23 1115 122 3002 24 1111 121 8605 25 4124 122 3600 26 1140... piston kit 3 E-clip 1 Choke shutter 2 Round head screw 1 Torsion spring 1 Choke shaft with lever 1 Throttle lever 1 Torsion spring 1 Throttle lever 1 Set of carburetor parts ☐ 6 - 9 (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 20 SCS 01-2010 3.29
... 0800 14 1114 122 7100 15 1140 120 7100 16 1140 121 2700 17 1140 122 3200 18 1140 121 3300 19 4224 122 7801 20 4203 121 2700 21 1140 122 6700 22 1140 122 6800 23 1115 122 3002 24 1111 121 8605 25 4124 122 3600 26 1140... piston kit 3 E-clip 1 Choke shutter 2 Round head screw 1 Torsion spring 1 Choke shaft with lever 1 Throttle lever 1 Torsion spring 1 Throttle lever 1 Set of carburetor parts ☐ 6 - 9 (1) MS 311, (2) MS 311-Z, (3) MS 391, (4) MS 391-Z MS 311, MS 391 20 SCS 01-2010 3.29
