background image

0458-716-8621-E

15

English 

6 IMPORTANT SAFETY INSTRUCTIONS

■ To reduce the risk of personal injury from unintentional 

starting when grasping the rear handle or carrying the 

chain saw:

– Wrap the fingers of your right hand tightly around the 

rear handle, identified by shading in the illustration 

above (1). Avoid grasping the chain saw outside the 

shaded area or contacting the trigger switch lockout 

or trigger switch.

■ To maintain a firm grip and properly control your chain 

saw:

– Keep the handles clean and dry at all times. Keep 

them free of moisture, pitch, oil, grease and resin.

■ To reduce the risk of serious or fatal injuries to the 

operator or bystanders from loss of control:

– Place your left hand on the front handle and your 

right hand on the rear handle (see illustration 

above). Left-handers must follow these instructions 

too.

– Wrap your fingers tightly around the handles, 

keeping the handles cradled between your thumb 

and forefinger.

– Position the chain saw in such a way that all parts of 

your body are clear of the cutting attachment 

whenever the motor is running. Stand to the left of 

the cut while bucking, outside of the cutting plane 

(see illustration above).

■ Operating the chain saw with one hand is extremely 

dangerous. One-handed operation makes it difficult to 

oppose and absorb reactive forces (pushback, pull-in, 

kickback) without losing control of the chain saw. It also 

makes it difficult to prevent the bar and chain from skating 

or bouncing along a limb or log. To reduce the risk of 

serious or fatal injury to the operator or bystanders from 

loss of control:

■ To reduce the risk of serious or fatal cut injuries to the 

operator or bystanders from loss of control, keep proper 

footing and balance at all times:

– Do not work in wet grass or terrain.
– Take special care in overgrown terrain and always 

watch for hidden obstacles such as tree stumps, 

roots, rocks, holes and ditches to avoid stumbling.

– Be extremely cautious when working on slopes or 

uneven ground.

– For better footing, always clear away fallen 

branches, scrub and cuttings. Freshly debarked logs 

and other material can increase the danger of 

slipping, tripping or falling.

– Use extreme caution when cutting small-size brush, 

branches and saplings because slender material 

may catch the saw chain and spring toward you or 

pull you off balance.

■ To reduce the risk of injury from loss of control:

– Avoid contacting any object with the 

upper quadrant of the tip of the guide 

bar. It may cause kickback to occur.

– Always hold the chain saw firmly with 

both hands when you are working.

0000-GXX-1888-A1

– Never attempt to operate the chain saw 

with one hand.

Summary of Contents for MSA 120 C

Page 1: ...narse como resultado de un culatazo utilice la barra y la cadena de contragolpe reducido de la forma especificada en este manual o de otros componentes reductores de contragolpe WARNING Read Instructi...

Page 2: ...Instruction Manual 1 62 Manual de instrucciones 63 128...

Page 3: ...ng the Chain Saw 13 7 Kickback and Other Reactive Forces 18 7 1 Reactive Forces 18 7 2 Kickback 19 7 3 Pull in 23 7 4 Pushback 24 8 Proper Techniques for Basic Bucking Limbing Pruning and Felling 24 8...

Page 4: ...ing the Guide Bar 51 24 4 Inspecting Maintaining and Sharpening the Saw Chain 51 25 Troubleshooting Guide 55 25 1 Chain Saw and Battery 55 25 2 Charger 56 26 Specifications 57 26 1 STIHL MSA 120 C MSA...

Page 5: ...at requires your special attention Such information is introduced with the following symbols and signal words DANGER Indicates a hazardous situation that if not avoided will result in death or serious...

Page 6: ...and drive links 7 Guide Bar Supports and guides the saw chain 8 Chain Sprocket Cover Covers the chain sprocket 9 Adjusting Wheel Permits precise adjustment of saw chain tension 10 Wingnut Tightens th...

Page 7: ...ays wear proper eye protection and an approved protective helmet 6 3 Avoid contact of the bar tip with any object This can cause the bar to kick suddenly up and back which may result in serious or fat...

Page 8: ...hed or grounded surfaces such as pipes radiators ranges and refrigerators There is an increased risk of electric shock if your body is earthed or grounded c Do not expose power tools to rain or wet co...

Page 9: ...sk of starting the power tool accidentally d Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool...

Page 10: ...e and could give the operator an electric shock d Wear eye protection Further protective equipment for hearing head hands legs and feet is recommended Adequate protective equipment will reduce persona...

Page 11: ...chain breakage and or kickback 4 Follow the manufacturer s sharpening and maintenance instructions for the saw chain Decreasing the depth gauge height can lead to increased kickback 6 1 Intended Use W...

Page 12: ...y produce white finger disease Raynaud s phenomenon or carpal tunnel syndrome These conditions reduce the hand s ability to feel and regulate temperature They produce numbness and burning sensations a...

Page 13: ...e your hearing Although this battery powered product is relatively quiet to reduce the risk of hearing damage Wear sound barriers ear plugs or ear muffs Regular operators should have their hearing che...

Page 14: ...n saws their use may be extremely dangerous Only attachments supplied by STIHL or expressly approved by STIHL for use with this specific model are authorized Use only attachments supplied or expressly...

Page 15: ...w chain is extremely important to maximize cutting performance and reduce the risk of personal injury from chain breakage derailment or reactive forces Read and follow the chain tensioning instruction...

Page 16: ...e off position when inserting the battery Avoid contacting the trigger switch lockout and trigger switch when grasping the rear handle of the chain saw Release the trigger switch and trigger switch lo...

Page 17: ...extremely dangerous One handed operation makes it difficult to oppose and absorb reactive forces pushback pull in kickback without losing control of the chain saw It also makes it difficult to preven...

Page 18: ...the general work area Switch off the motor immediately if you are approached To reduce the risk of injury to bystanders and unauthorized users Never leave the chain saw unattended when the battery is...

Page 19: ...r particulate matter cannot be kept at or near background levels always wear a respirator that is approved by NIOSH and rated for worksite specific conditions Follow the recommendations of governmenta...

Page 20: ...dry vegetation and brush particularly when weather conditions are hot and dry Do not use your chain saw around flammable materials or around vegetation or brush when there is a risk of fire or wildfir...

Reviews: