Craftsman 316351920 Owner’s Manual

Operator's Manual

51cc 2-Cycle Chain Saw

• SAFETY ALERT SYMBOLS •

Safety alert symbols are used to draw your attention to possible dangers. These symbols, and their

explanations, deserve your careful attention and understanding. The safety warnings do not by themselves eliminate any danger. The instructions or warnings they give are not substitutes for

proper accident prevention measures. These safety instructions are not meant to cover every

possible condition that may occur. If questions arise, please call the Customer Support

Department at 1=866=206=2707 (U.S.) or 1=877=696=5533 (Canada).

SYMBOL MEANING

DANGER: Slgna,sanEXTREME hazard.

Failure to obey a safety DANGER signal WILL result in serious injury or death to yourself or

to others.

511

TABLE OF CONTENTS

Service Information .............................................................. 1

Safety Information ............................................................... 1

Know Your Unit ................................................................. 3

Assembly Instructions ............................................................ 3

Oil and Fuel Information .......................................................... 4

Starting and Stopping Instructions .................................................. 4

Operating Instructions ........................................................... 5

Maintenance and Repair Instructions ................................................ 6

Cleaning and Storage ............................................................ 8

Troubleshooting ................................................................ 8

Specifications .................................................................. 8

Warranty Information ........................................................... 24

All information, illustrations and specifications inthis manual are based on the latest product information available at the time of printing. We reserve the right to make changes at any time without notice.

SAVE THESE INSTRUCTIONS

DO NOT RETURN THiS UNIT TO THE RETAILER. PROOF OF PURCHASE WiLL BE REQUIRED FOR WARRANTY SERVICE.

For assistance regarding the assembly, controls, operation or maintenance of the unit, please call the Customer Support Department at 1=866=206-2707 in the United States or 1 =877=696-5533 in Canada.

Additional information about the unit can be found on our website at www.remingtonpowertoois.corn. For service, please call the Customer Support Department to obtain a list of authorized service dealers

near you. Service on this unit, both within and after the warranty period, should only be performed by an authorized and approved service dealer. When servicing, use only identical replacement parts.

SPARK ARRESTOR NOTE NOTE: For users on U.S. Forest Land and in the states of Cafifornia, Maine, Oregon and

Washington. All U.S. Forest Land and the state of California (Public Resources Codes 4442 and

4443), Oregon and Washington require, by law that certain internal combustion engines operated on forest brush and/or grass-covered areas be equipped with a spark arrestor, maintained in effective

working order, or the engine be constructed, equipped and maintained for the prevention of fire. Check with your state or local authorities for regulations pertaining to these requirements. Failure to

follow these requirements could subject you to liability or a fine. This unit is factory equipped with a spark arrestor. If it requires replacement, ask your LOCAL SERVICE DEALER to install the

Accessory Part #753=06268 Muffler.

WARNING: Signa,saSERIOUS hazard.

Failure to obey a safety WARNING signal CAN result in serious injury to yourself or to others.

CAUTION: Signa,saMODERATE hazard.

Failure to obey a safety CAUTION signal MAY result in property damage or injury to

yourself or to others.

IMPORTANT! Signals special mechanical information. NOTE: Signals additional important general information.

o IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE OPERATING

WARNI NG: When using this unit, basic safety precautions should always be

followed to reduce the risk of property damage and personal injury, including the following:

WARN! NG: Engine exhaust, some of its constituents and certain finished

[_ CALIFORNIA PROPOSitiON 65

BASIC SAFETY PRECAUTIONS

• DO NOT rely exclusively upon the safety devices built into the unit.

• DO NOT allow the unit to be used as a toy.

• Please read the entire operator's manual carefully before attempting to assemble, operate or

• Follow all safety instructions. Failure to do so can result in property damage or serious injury to

• Be thoroughly familiar with the controls and the proper use of the unit. Know how to stop the unit

• Stay alert! Do not operate the unit when tired, ill or under the influence of alcohol, drugs or medication.

UNDERSTANDING KICKBACK

i i

i i i

i i i i

KICKBACK SAFETY PRECAUTIONS * DO NOT over reach.

* DO NOT cut above shoulder height. * DO NOT make cuts with the tip of the guide bar (Fig. 1). * DO NOT let the tip of the guide bar contact any object,

* DO NOT cut more than one log or branch at a time. * DO NOT twist the saw when removing the guide bar

* DO NOT operate the unit with one hand! Serious injury to

components contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.

maintain the unit.

yourself and/or others.

and disengage the controls quickly.

Never allow children to operate the unit. Never allow adults to operate the unit without proper instruction. Make sure that all guards and safety attachments are properly installed before operating the unit.

Keep these instructions. Refer to them often and use them to instruct other users. If loaning

someone this unit, also loan them these instructions.

Keep bystanders, especially children and pets, at least 50 feet (15 m) away. If anyone enters the

work area, stop the unit!

Keep the work area clean. Cluttered areas invite injuries. Do not start cutting until the work area is clear

and free from obstructions, there is secure footing and a planned retreat path from falling branches. Always wear appropriate eye and ear/hearing protection when operating this unit. Wear safety

goggles, or safety glasses with side shields, that are marked as meeting ANSI Z87.1-1989 standards. Failure to do so could result in serious eye injury caused by thrown or falling objects. If

the operation is dusty, wear a face mask or dust mask. Use a hard hat or other type of safety helmet.

Dress appropriately, wear heavy, snug-fitting clothes (long pants and a long sleeve shirt), non-slip

protective gloves and steel-toed safety boots. Do not wear loose clothing, jewelry, short pants, sandals or go barefoot. Secure hair above shoulder level to prevent entanglement in moving parts.

Only use the unit in daylight or good artificial light. Only use the unit for its intended purpose: to cut wood. Only use the unit as described in this

manual. Only use the manufacturer's recommended attachments with this unit.

DAN GER: Kickback may occur when the nose or tip of the guide bar touches an

object, or when the wood closes in and pinches the saw chain in the cut. In some cases, tip contact may cause a lightening-fast reverse action, kicking the guide bar rapidly back towards

the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator. Either of these reactions may cause a loss of control over the saw, which could result in serious injury to the user. Contact with foreign objects within the wood

can also induce a loss of chain saw control.

Rotational Kickback can happen when the upper tip of the guide bar contacts an object while the chain is moving (Fig. 1 & 2). This can cause the chain to dig into

the object and momentarily stop moving. The guide bar is then kicked up and back toward the operator in a

lightning-fast reverse reaction. Pinch Kickback can happen when the wood on either

side of a cut closes in and pinches the moving saw chain along the top of the guide bar. This can cause the chain

to instantly stop. The chain force is then reversed, causing the saw to move in the opposite direction,

sending the saw straight back toward the operator. Pull-In can happen when the moving chain on the bottom

of the guide bar hits a foreign object inside the wood. This can cause the chain to suddenly stop. The saw is then

pulled forward and away from the operator, which could potentially result in the loss of control of the saw.

such as a log, branch, ground or other obstruction.

Remove or avoid any obstructions that might impact the

tip of the guide bar while cutting (Fig. 3).

Kickback

from an undercut while bucking.

the operator, helpers or bystanders may result from one- handed operation. This unit is intended for two-handed

use. Always grip the unit firmly with both hands when the engine is running. Keep the left hand on the front handle

and the right hand on the rear handle. Use a firm grip with thumbs and fingers encircling the handles. A firm grip will

help maintain control of the unit and reduce kickback. Do not let go! Stand slightly to the left of the unit to avoid

being in the direct line of the saw chain. Follow all the Proper Grip on Handles instructions in the Operating Instructions section.

Rotational Kickback

Fig. 1

Kickback Danger Zone

Fig. 2

Fig. 3

769=07440 P00 PPN: 41AY80AG983 12/11

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¢_NE:RAL SA _:$Y _R_CAUt]ON8

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se:_ereh_ed Be _e _i_t he i_8_ cha}n s!!_p'_ movllg ,_ehen th_ th_elt_je e_d #:g_r } le_ea*_ed @o r_t ¢_aeff'te _e_t € the slop wt@h does not t_l the U11t _' _rld Off F_opedy _ t _he fieekout

switch dr_e Mot Y/dh Have d+b_ectp_e ew_t/]hee _eplaeed by at_ aolh<_/zeal _er_<tee eerttet

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* 'R;_l_dac_ the i_ d _e _p t_ _gffle a_ e/ume_ bee t_mm debrls_ e_c_s_i@e S_ease a_d _fb_,*'_

build up

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_,_sfeo led to 1he _'er_: A_WI_V_Jm_.ke _ure the _ep _,'m:h sin _e pr,s-r_ po<_i_er_ hd_e stail/hg e_ s_op{Jtn_ _'_@e_fl_ Whetl c_itt I'_g a } b ti_/_t !3 _.al(l_ ten_% be _ert te_ ap#ng back, wP,/c/_ may eal._e the op_ate¢ t,a

be emek Y;<nenthe tenak)n d the WOOd t_hea a teMae4ed

* O_a e_eme _:eLl_on whe_ cqtt_Rg _1_n8!-a_y_d brt,4eh A!d aap_lrlge aa NeI'_e_ m;}tedal ma eath

t_ ew chart 8r-4_ _e w}ipp÷_ toward fl_e opet_Jto_ or pu_ the e'petet0f off ba_arg,,e

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i_w_,ee F,__;_tged p_oda d ¢_e_'etto_'t _Ye may c_dae e tetd_'_tory [_lo_46me I_ the oaela h,ai'_d_d_4÷ tO aibratl_l

G._OU N£ _F_TY

Thee a@e_:_40_"erna_Je_ d acl_b-÷e s_t_ty _nd _r_fell'_et ona_ ayrrtb_ eqd pi¢_og/ephe t_%at rr_ _f%lea_ or_ th_ pto@._ct Read the _at,;tffe manua ear c_et:get _ett,, _emb y, _ereting m_nten_e

and repair nham et oq

@Y_L N_AN{NG

* SAFETY AND INTERNATFO_L SYMBOLS *

i ii! ii

andit_ repots can explode f 9_ted _e t'le tolo_ing p ecaelomm:

D@ NO_ arl'_oke wh4fe hsnc_fll_g lue_ or while oper ;'_t_g th_ wt_

* AJways keep _ fi%, ext_ngu shel nearby _,_t_le ope/_:_rt_ #'_e_rl_

- S_o_e fuel e_ffy r_ eon_mere p c_fic_l_y des greed e_d e,pp/oved f_ the et_age ot _h mete_e e

* Nw_ya atop the engine erd NloY_ k to a-£>l bMo_e _ng the fi, ei t_k Newe _<,neve the h_e_ tei,/a

cap or _d_:t f_l v#_en the ÷_g ne i h<_t _Weys do.sen the IL_ Ia¢_8 Ca[> 8ks,_ y to e_eve an preaau_e i_ the V:tIi_ be_r,e f_JeJng ©o act arno_e

* _Ways rqX end dd rue i!1a et_arl we_l vell_fa_J o_d_o_ _'ea w_le there a_ _:4>apa_ks or

* Ndve_ _:la_ate the unit _'tlt}_yJl _he f_e_ eep eeau_e_y }e p_ce * Avoid efeeheg a eour¢_a d gr_ o¢'l hat ap_I ed fee Wipe up a'y aped fi4e #am tJ_e n_t

rnr'_,ed _e}y b_t_ e a_lin_ the ueit Mow_ the unl a_ teaet 30 feet 9 1 rrl) _te_'e #e tl/eling aou/e

ar<_ _4te bet_e s4atlfr_ 9 _8 erase D_>not amORe

* Nave! tNsa_!_ r_,l/i lhe Ln_t _e/de 8 _skx_ed l(_rr_ o/bu_M_P_ Bteaffli_ 9 eyhau_l fLa_/es C_-_Sa_/

Cpa_ste the uN_ o_ey in a _ae_/ vei/t a_ed e_4td_r alea

* Alleywaysa_'e I_h_ _r'd and fu4_ a'l a ee_pi @_ 8Re _ueiFvei'ffil_ed f_._ee v_alefe rue _,'af_ a _ln_>t

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_A}NI_ENANC_ ANB STO_A_'_E _'E'_f * the U_!A i not we_k r19 es it sh_! "_e:, bert @opped_ damaged eft eutdo_ e_ Oe_yped into

w_t_.*,_do _ uae the Url_t Hve _he _rat aer_;i¢_f by a_ a_Jt:ho#ae_ service eenee_

* A_! se_,d,_ ethe th;:lR ff_ rm_ nter_a_;e p*ocAtu*es de cdb_d n t_s manual should be p_lr>[med

by :_'t al4th_ z_d a_ _,ee e_mtel FoI_oal8_ I'r eir_lerla_e;e iqa_[uct let% ,1 th_e ¢1'_18

* £et_e ir;ai:>ee#ng+ s_'Nar@ ele_nlq# eto_ni# #:Ji_p¢_br_g _ te#_dltg _n:t p_lls On the L_t:

t StO# the en_21ne Make a_a_ _'_e!_,_ e_ulteh s rl th_ STOP p_i on _r_j the thF_ffeeont_ tq(_gez

2 t_tak_ _/a N I'r}ow #_ _*_1t have _stc>_J 3 AllOy/the unit 10 a_

4 Make s_Jre _he ,_tn b/eke e dad's#aged Ne_,et remeve I_e_#y O_reaXe Jr_:_F_tative any eatery deviee tut_i_ "_ Wth the on4 For ea4ef mo_e effed_ve ped_manee, rr a_e au_e th_ gu _ bar end d_a r_ e_e p_edy e_eaned

h4bri£ated, t_g_lened _md sharpestled Che_: the g_.ic_ t._a__d_d #aria q _t #equel_t lit@" _ _¢_ pI_ _dli_f; merit

* Fraq_antl% i_speet ff_e _nt to__m_ge Beto_ tUdh_ _se any d_m_ged 11:;t_Ieh_-_d be ea_e%l!y

Recked tr._del_ Y,iee that t aH _#)e_ate_opedy m_Idped_'_rq tS: mtand_J _t_cllon Crack tel

a_imeqq of In¢,viIl_pa_lm b _Jm_g at mlav_g paurtm,b_eakmye of paMc- hl_/÷aks a_d e_/og_ monet _?s that racy m_ect ib_e_atla_ Damaged pl_i% en_,_d be property ref>e {_ a _ap_aeed by

a_ _b_h*_<m_t_edeeP_ce €:eater _a_t_m _Rherw e ir_@eeted e_th_ men_,_al tJse_llyeaig_N_Y_qaet_ef_eceq_e_RpaMeende_aeea_iea, '¢4_c% e_e d_._ {_#led _pe d_ amplyIo

e_#h_cm ff'_e pe_io_mm_ee 8t_d rn_&mce ate safe ope_atior_ at the p_Ju_l _a_l_ to do so may em_me p_t t_l_orrtlawae a£_dpcu4a#bJe/f/M_y LF>÷ _ fftm _hml_ and guide ha' mupp_ed mirth _'_ pic@_ t

* A_v_aye uae ehe _cat_)etd e_ the _4t_ h_t &mea_*_ oh_in df_I_eg tr rlap_>_et oe ;4r_! atKes,? * When rot _1 u_e, sto_e the un{t e caked up en_;__y or hgh aI_J dry, _aee to p_event

_ak_tho_ z÷d _e o_ @_nitage Keep eeY_dt the _eC_ _t ahi@eri K_p tbe hett<_ d_? <_e_ttl 8lid free ffoa'_ da_'_l_; r_ _4 eC_dgrease tl)_e_rl the _t'lit affe_ e_'_ uae

Neve_ d_se or _ra,x t_e u_a Wth water {x any otPd_ h_d G'o _ tee fK3 Y_aa OI at_or_g deteraen_

SAV_ THES_ INSTRUCTIONS

APPLICATIONS This unit may be used for the purposes listed below:

Basic limbing, felling and woodcutting Removing buttress roots

TOOLS REQUIRED:

Damp Cloth

Small Flathead Screwdriver

Multi-purpose Tool (included)

This unit requires assembly.

UNPACKmNG

Carefully remove the product and any accessories from the box.

Inspect the product carefully to make sure no breakage or damage occurred during shipping. Do not discard the packing material until you have carefully inspected and satisfactorily operated the product. If any parts are damaged or missing, please call 1-866-206-2707 (U.S.) or 1-877-696-5533 (Canada) for assistance.

I _ _WARNING: Make sure the stop switch is in the STOP position before inspecting, adjusting, fueling or|

ASSEMBLING THE GUmDE BAR AND SAW CHAIN

Refer to Removing/Replacing the Guide Bar and Chain in the

Maintenance and Repair Instructions section. ADDING BAR AND CHAroN LUBRICANT

The guide bar and saw chain require lubrication to minimize friction.

Never starve the guide bar and chain of lubricating oil. Running the unit without enough oil will decrease cutting efficiency, shorten the

life of the saw chain, cause rapid dulling of the saw chain and

excessive wear to the guide bar from overheating. An insufficient amount of lubricating oil is evidenced by smoke, guide bar

discoloration or pitch build-up.

performing maintenance on any part of the unit. Failure to do so can result in serious personal injury.

JRefer to Starting and Stopping Instructions.

19 22

CHAIN SAW COMPONENTS

1. GUIDE BAR

2. LOW KICKBACK SAW CHAIN

3. CHAIN-TENSIONING SCREW

4. SPARKARRESTER SCREEN

5. CHAIN BRAKE LEVER/FRONT HAND GUARD

6. FRONT HANDLE

7. STARTER HANDLE

8. SPARK PLUG

9. AIR FILTER COVER

10. STOP SWITCH

11. SAFETY LATCH

12. BAR LUBE RESERVOIR CAP

SAFETY FEATURES Numbers preceding the descriptions correspond with the numbers above to help you locate the safety feature.

2. LOW KICKBACK SAW CHAIN helps significantly reduce kickback, or the intensity of kickback, due to specially designed depth gauges and guard links.

4. SPARK ARRESTER SCREEN retains carbon and other flammable particles over 0.023 inches (0.6ram) in size from engine exhaust flow. Compliance with local, state and federal laws and/or regulations governing the use of a spark arrester screen is the user's responsibility. See Safety Information for additional information.

5. CHAIN BRAKE LEVER / FRONT HAND GUARD helps protects the operator's left hand in the event it slips off the front handle while the unit is running.

CHAIN BRAKE is designed to reduce the possibility of injury due to kickback by stopping a moving saw chain in milliseconds. It is activated when pressure is applied to the chain brake lever, as in the event of the operator's hand

striking the lever during kickback.

10. STOP SWITCH immediately stops the engine when moved to the STOP position. The stop switch must be pushed

to the RUN position to start or restart the engine.

11. SAFETY LATCH prevents accidental acceleration of the engine. The throttle control trigger (20) cannot be squeezed unless the safety latch is depressed.

20. CHAIN CATCHER reduces the danger of injury in the event the saw chain breaks or derails during operation. The chain catcher is designed to intercept a whipping chain.

18 23

-- Guide Bar Tip

13. STARTER COVER

14. FUEL TANK CAP

15. REAR HANDLE / BOOT LOOP

16. PRIMER BULB

17. CHOKE LEVER

18. BAR-RETAINING NUTS

19. THROTTLE CONTROL TRIGGER

20. CHAIN CATCHER

21. MUFFLER SHIELD

22. GUIDE BAR COVER

23. SPIKED BUMPER / BUCKING SPIKE

24. MULTI-PURPOSE TOOL

I _b ! WARNING: Make sure the bar lube reservoir is i Bar Lube Bar Labe

Fill the bar lube reservoir each time the fuel tank is filled. Only use bar and chain oil that is formulated to perform over a

wide range of temperatures with no diluting required in the bar lube reservoir. Do not use motor oil or any other

petroleum-based oil. NOTE: This chain saw comes from the factory with the bar lube reservoir empty. Use the bottle of bar and chain oil that

NOTE: Always clean the bar lube reservoir cap and surrounding area before adding bar and chain lubricant. Use a

1. Remove the bar lube reservoir cap (Fig. 4).

2. Carefully pour the bar and chain oil into the bar lube reservoir.

3. Replace the bar lube reservoir cap and tighten securely.

4. Wipe off excess oil. NOTE: Bar lube reservoirs are designed to keep oil slowly flowing onto the chain. This unit will use approximately one

NOTE: Do not use dirty, used or otherwise contaminated oils. Damage may occur to the guide bar or chain. IMPORTANT! Please dispose of oil properly. Consult your local waste

FUELING THE ENGINE

This unit is designed to operate on a mixture of unleaded gasoline and 2-cycle engine oil. Refer to Oil and Fuel Information for complete

mixing instructions and detailed fuel requirements. NOTE: Always clean the fuel tank cap and surrounding area before

1. Turn the unit on its side so that the fuel tank is facing up (Fig. 5).

2. Slowly unscrew and remove the fuel tank cap by turning it

3. Slowly pour the proper fuel/oil mixture into the fuel tank until the

4. Replace the fuel tank cap and turn it clockwise to secure it tightly.

5. Wipe off any spilled fuel.

TESTING THE CHAIN BRAKE

_ WARNING: When activating the chain brake, do |

Always test the chain brake before using the unit and periodically during operation. Follow these instructions to make sure the chain

brake is working correctly:

1. Place the unit on a clear, firm and flat surface.

2. Pull the chain brake lever back to disengage the chain brake.

3. Start the unit. Refer to Starting and Stopping Instructions. Be sure

4. While the unit is running, squeeze the throttle control trigger to 1/3 throttle and then engage the chain brake by

The chain should stop moving abruptly. If it does, immediately release the throttle control trigger, turn off the engine and

return the chain brake to the disengaged position. Refer to Starting and Stopping Instructions. If the chain does not stop when the chain brake is engaged, release the throttle control trigger, stop the engine and have

the unit serviced by an authorized service center.

_ ARNING: The chain must not move when the engine runs at idle speed. If it does move at idle |

always filled. Failure to fill the bar lube reservoir will ReservoirCap Reservoir cause irreparable damage to the unit.

is included with the unit.

damp cloth. This helps prevent debris from entering the bar lube reservoir.

tank of bar and chain oil for every tank of fuel. If the oil flow to the guide bar and chain is too much or too little, refer to Adjusting the Automatic Offer inthe Maintenance and Repair Instructions section.

authority for information regarding available disposal options.

fueling the unit. Use a damp cloth. This helps prevent debris from entering the fuel tank.

counterclockwise.

tank is full.

so slowly and deliberately. Keep the saw chain from touching anything; don't let the saw tip forward.

to maintain a proper grip. Refer to Proper Grip on Handles in the Operating Instructions section.

pushing the chain break lever forward with the left hand (Fig. 6).

speed, refer to the Carburetor Adjustment instructions in the Maintenance and Repair Instructions section. Avoid contact with the muffler. A hot muffler can cause serious burns.

Fuel Tank

Fig. 4

Fig.5

Fig. 6

Fuel Tank

Cap

Chain Brake

_[_ AUTION: For proper engine operation and maximum reliability, pay strict attention to the oil and fuel

mixing instructions on the 2-cycle oil container. Using improperly mixed fuel can severely damage the engine.

_ ARNING: Only operate this unit in a well-ventilated outdoor area. Carbon monoxide exhaust fumes |

can be lethal in a confined area.

_ ARNING: Gasoline is extremely flammable. Ignited vapors may explode. Always stop the engine

_[_ ARNING: Remove the fuel cap slowly to avoid injury from fuel spray. Never operate the unit without

_[_ AF{NING, Add fuel in a clean, well-ventilated outdoor area. Wipe up any spilled fuel immediately.

OraLAND FUEL MmXmNGINSTRUCTmONS Old fuel and improperly mixed fuel are tile two main reasons wily tile unit m _&,

may not run properly. Be sure to use fresh, clean unleaded gasoline and quality synthetic 2-cycle air-cooled engine oil. Do not use automotive oil or _

boat oil; these oils will damage the engine. , _ , Obtaining the Correct Fuel/Oil Mixture

Thoroughly mix the proper amount of 2-cycle engine oil with unleaded UNLEADED GAS 2 CYCLE OIL gasoline in a separate fuel container (do not mix them directly in the 1 GALLON US 3.2 FL. OZ.

engine fuel tank). Use a 40:1 fuel/oil ratio. See the table for specific gas (3.8 LITERS) (95 ml) and oil mixing ratios.

NOTE: One gallon (3.8 liters) of unleaded gasoline mixed with one 3.2 oz. 1 LITER 25 ml

When mixing fuel, follow the instructions printed on the oil container.

Always read and follow the safety rules relating to fuel before fueling the unit.

NOTE: Dispose of any old fuel/oil mix in accordance with federal, state and local regulations. Using Blended Fuels

_ ARNING: DO NOT USE E85 FUEL IN THINSUNIT.

Today's fuels are often a blend of gasoline and oxygenates such as ethanol, methanol or MTBE (ether). These alcohol- blended fuels absorb water. As little as 1% water in the fuel can make fuel and oil separate, which leads to the formation of acids during storage.

If you choose to use a blended fuel, or its use is unavoidable, follow these precautions: * Always use fresh fuel (less than 30 days old)

* Mix the fresh unleaded fuel with 2-cycle engine oil, as directed above * Use the fuel additive STA-BIL® or an equivalent * Always agitate the fuel mix before fueling the unit

* Drain the fuel tank and run the engine dry before storing the unit Using Fuel Additives The bottle of 2-cycle oil that came with this unit contains a fuel additive that will help inhibit corrosion and minimize the

formation of gum deposits. Using the 2-cycle oil included with this unit is recommended. If unavailable, use a good 2-cycle oil designed for air-cooled engines along with a fuel additive, such as STA-BIL _ Gas

Stabilizer or an equivalent. Add 0.8 oz. (23 ml) of fuel additive per gallon of fuel according to the instructions on the container. NEVER add fuel additives directly to the unit's fuel tank.

NOTE: Never use engine or carburetor cleaner products in the fuel tank or permanent damage can occur.

and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep sparks and open flames at a distance from the area.

the fuel cap securely in place.

Avoid creating a source of ignition for spilt fuel. Do not start the engine until fuel vapors dissipate.

(95 ml) bottle of 2-cycle oil makes a 40:1 fuel/oil ratio. MIXING RATIO - 40:1

It has been proven that fuel containing greater than 10% ethanol will likely damage this engine and void the warranty.

I _ I WARN|NG' Never operate the unit without the guide bar and saw chain properly installed, i

BEFORE STARTING THE ENGINE * Make sure the chain tension is at the desired setting. RefertoAdjusting the Chain Tension in the Maintenance and

Repair section. * Make sure the bar-retaining nuts are tight to the guide bar cover. * Make sure the fuel tank is filled with fresh fuel. Refer to Oil and Fuel Information. If the oil and fuel instructions are

not understood, do not attempt to fuel the unit!

* Make sure the bar lube reservoir is filled with bar and chain oil. Refer to Adding Bar and Chain Lubricant in the

Assembly Instructions section. * Make sure the chain brake is disengaged by pulling the front hand guard / chain brake back toward the front handle

as far as possible. Refer to Testing the Chain Brake in the Assembly Instructions section. * Make sure the immediate area is clear of any objects or obstructions that could come in contact with the guide bar

and chain.

STARTmNG THE ENGINE To help prevent accidental start-ups, this unit has a stop switch,

safety latch and a throttle control trigger that must be used together to start the unit.

1. Move the stop switch down to the RUN position (Fig. 7).

2. Fully press and release the primer bulb 10 times, slowly (Fig. 7). Some amount of fuel should be visible in the primer bulb. If fuel

cannot be seen in the bulb, press and release the bulb until fuel is visible.

3. Move the choke lever to Position 1 (Fig. 8). This will lock the throttle into the wide open position.

4. Do not touch the throttle control trigger. Place the unit on a firm, flat surface. Crouch in the starting position and hold the unit

firmly, as shown (Fig. 9). Grip the front handle with the left hand and put the right foot in the boot loop.

5. Do not touch the throttle controm trigger. Pull the starter rope 5 times in a controlled and steady motion.

NOTE: This unit uses the AST starting system, which significantly

reduces the effort required to start the engine. You must pull

the starter rope out far enough to hear the engine attempt to start. There is no need to pull the rope briskly - there is no

harsh resistance when pulling. Do not pull the rope to its limit, as this may cause the rope to break. Do not let the

rope snap back. Hold the handle and let the rope rewind

slowly. Be aware that this starting method is vastly different from (and much easier than) what you may be used to.

6. Do not touch the throttme controm trigger. Move the choke lever to Position 2 (Fig. 8).

7. Do not touch the throttle control trigger. Pull the starter rope 3- 5 times in a controlled and steady motion to start the engine.

8. Do not touch the throttle controm trigger. Allow the engine to warm up for 30-60 seconds.

9. Depress and release the throttle control trigger to idle the engine. The unit is now ready for use.

IF... The engine does not start, go back to step 2. IF... The engine fails to start after a few attempts, move the

choke lever to Position 2 and squeeze the throttle control trigger. Pull the starter rope 3-8 times in a controlled and

steady motion. The engine should start. If not, repeat.

IF... The unit idles roughly, use a Phillips or standard screwdriver

to turn the idle adjustment screw (Fig. 10) 1/4 to 1/2 turn clockwise or until the unit idles smoothly.

IF... The saw chain turns while the unit is idling, use a Phillips or

standard screwdriver to turn the idle adjustment screw (Fig.

10) counterclockwise until the saw chain stops and the unit

continues to idle.

IF... The engine starts and idles smoothly, begin the chain brake

test. Refer to Testing the Chain Brake in the Assembly Instructions section.

IF WARM...If the engine is already warm, perform steps 6 - 9 to start

the unit.

STOPPING THE ENGINE

1. Release the throttle control trigger and allow the engine to return to idle speed.

2. Move the stop switch up to the STOP position (Fig. 7). NOTE:

It is normal for the chain to coast to a stop once the stop switch is in the STOP position.

NOTE:

For emergency stopping, push the chain brake lever / hand guard forward to engage the chain brake and then move the stop switch up to the STOP position.

Primer Bulb

0 Lever

Throttle Control Trigger

Fig. 7

Fig. 8

Fig. 9

Idle Adjustment Screw

Fig. 10

Stop Switch

Choke

_[_ ARNING: Do not allow familiarity with this unit to promote carelessness. Remember that a careless I

-- i_ ARNING: If any parts are damaged or missing, do not operate the unit until the parts are replaced.

_ ARNING: Always wear appropriate eye and ear/hearing protection when operating this unit. Wear

PROPER GRIP ON HANDLES

PROPER CUTTING STANCE

BASIC OPERATING/CUTTING PROCEDURES

WORK AREA PRECAUTIONS

REMOVING BUTTRESS ROOTS A buttress root is a large root extending from the trunk of the tree

above the ground. Remove large buttress roots prior to felling (Fig. 16).

1. Make the horizontal cut into the buttress first, followed by the

2. Remove the resulting loose section from the work area.

3. Remove any remaining large buttress roots. FELLING

_ ARNING: Do not fell trees during periods of

Felling is the term for cutting down a tree. When felling a tree, it is important to heed the following warnings to reduce the risk of serious

injury:

• Pick your escape route (or routes in case the intended route is Line of Fail

fraction of a second is enough to inflict serious injury.

Failure to heed this warning could result in serious personal injury.

safety goggles, or safety glasses with side shields, that are marked as meeting ANSI Z87.1-1989 standards. Failure to do so could result in serious eye injury caused by thrown objects. If the operation is

dusty, wear a face mask or dust mask. Use a hard hat or other type of safety helmet.

section for appropriate safety equipment.

WARNING: Wear non-slip gloves for maxirnum grip and protection. Refer to the Safety Information i

Hold the saw firmly with both hands. Always keep the left hand on the front handle and the right hand on the rear handle so that the

operator's body is to the left of the chain line (Fig. 11). Use these hand placements even if the operator is left-handed.

Maintain a proper grip on the saw whenever the engine is running. The fingers should encircle the handle and the thumb should wrap

under the handle (Fig. 12). This grip is least likely to be broken by a kickback or other sudden reaction of the saw. Any grip in which the

thumb and fingers are on the same side of the handle is dangerous because a slight kick of the saw can cause loss of control (Fig. 13).

WARNING: Do not operate the throttle control

trigger with the left hand while holding the front handle with the right hand. Never allow any part of your body

to be in the chain line while operating a saw (Fig. 14).

Balance body weight securely, with both feet on solid ground. Keep the left arm locked in a "straight arm" position to withstand

any kickback force (Fig. 15). Keep all body parts to the left of the chain line (Fig. 15).

Make sure the proper grip is established on the front handle and rear handle.

Do not cut above chest height as a saw held higher is difficult to control against kickback forces.

This unit has a 18" guide bar and is designed to cut logs or trees with diameters of 14" or less. Cutting larger trees or logs is not

recommended. Practice cutting a few small logs using the following technique to get

the "feel" of using the saw before you begin a major sawing operation. Take the proper stance in front of the wood or tree to be cut. Start the engine and let the chain accelerate to full speed before

starting the cut. Refer to Starting and Stopping Instructions. Begin cutting with the saw against the log.

Keep the unit running the entire time while cutting, making sure to maintain a steady speed.

Allow the chain to do the cutting; exert only light downward

pressure. Forcing the cut could result in damage to the guide bar, chain or engine.

Release the throttle control trigger as soon as the cut is completed. Allow the chain to come to a complete stop.

Unnecessary wear may occur to the chain, guide bar and unit if the saw is run without a cutting load.

Do not put pressure on the saw at the end of the cut.

Cut only wood or materials made from wood. Do not attempt to cut sheet metal, plastics, masonry or non-wood building materials.

Keep everyone - helpers, bystanders, children and animals - 50 feet (15 m) away from the cutting area. If anyone enters the work

area, stop the unit! During felling operations, the safe distance should be at least twice the height of the largest trees in the felling

area. During bucking operations, keep a minimum distance of 15 feet (4.6 m) between workers.

Only operate the unit when visibility and light are adequate to see clearly.

Proper

Grip

improper

Grip

Chain Line

Chain

Line _

improper

Stance

Fig. 11

Fig. 12

Fig. 13

Fig. 14

Proper Hand

Grip Position

Thumb

Below the

Handle

____ Straight

Left Arm

vertical cut.

precipitation or high wind.

RemovingButtress t

Roots 1_ Cut - Vertical

Do not cut down trees having an extreme lean or large trees with rotten limbs, loose bark or hollow trunks. Have these trees pushed

or dragged down with heavy equipment, then cut them up. Do not cut trees near electrical wires or buildings. Leave this

operation for professionals. Check the tree for damaged or dead branches that could fall and

cause serious personal injury. Periodically glance at the top of the tree during the back cut to see

if the tree is going to fall in the desired direction. If the tree starts to fall in the wrong direction, or the saw gets

caught or hung up during the fall, leave the saw and evacuate the area immediately! Planned

When bucking and felling operations are being performed by two or Line of Fall more persons, at the same time, the felling operation should be separated from the bucking operation by a distance of at least twice ",qm_

the height of the tree being felled. Trees should not be felled in a 't manner that would endanger any person, strike any utility line or

cause any property damage. If the tree does make contact with any utility line, the utility company should be notified immediately.

The operator should keep on the uphill side of terrain, as the tree 135°From is likely to roll or slide after it is felled. Planned

blocked). Clear the immediate area around the tree and make sure there are no obstructions in your planned path of retreat. Clear the path of safe retreat approximately 135° from the planned line of fall (Fig. 17).

Consider the force and direction of the wind, the lean and balance of the tree and the location of large limbs. These things influence the direction in which the tree will fall. Do not try to fell a tree along a line different from its natural

line of fall. Remove dirt, stones, loose bark, nails, staples and wire from the tree where felling cuts are to be made.

Fig. 15

!!/,li_||F ,/ Horizontal

Fig. 16

| _ J Pathof

_ Safe Retreat

Fig. 17

]

_ ARNING: Never walk in front of a tree that has [

Small trees, up to 6-7 inches (15-18 cm) in diameter, are usually felled

in a single cut. Larger trees require a process consisting of two main

cutting operations: a notched undercut followed by a felling back cut.

1. Notched Undercut. This cut determines the direction that the tree

2. Felling Back Cut. This cut fells the tree. Make the back cut level

_ WARNING: Before making the final cut, always |

NOTE: On large diameter trees, stop the back cut before it is deep

_ WARNING: Never cut through to the notch. Always

3. As the tree starts to fall, remove the chain saw from the cut, stop

LIMBING

Limbing is the process of removing branches from a fallen tree (Fig. 22).

BUCKING Bucking is the process of cutting a fallen tree into desired log lengths.

NOTE: If possible, the log should be supported so that the end to

Bucking Logs Under Stress Make the first bucking cut 1/3 of the way through the log and finish

with a 2/3 cut on the opposite side. The log will tend to bend as it is

being cut. The saw may become pinched or hung in the log if the first

cut is deeper than 1/3 of the diameter of the log. Give special attention to logs under stress to prevent the guide bar and chain from pinching.

1. When the log is supported on one end (Fig. 23): First, cut from the

2. When the log is supported on both ends (Fig. 24): First, overbuck

Bucking Fully Supported Logs

When the log is supported along the entire length, cut from the top

(overbuck), being careful to avoid cutting into the ground (Fig. 25).

Overbucking

Begin on the top side of the log with the bottom of the saw against

the log; exert light pressure downward. During overbucking, the saw will tend to pull away. Be prepared for this reaction and hold the saw

firmly to maintain control. (Fig. 25)

Underbucking Begin on the under side of the log with the top of the saw against the

log; exert light pressure upward. During underbucking, the saw will

tend to push back. Be prepared for this reaction and hold the saw firmly to maintain control. (Fig. 26)

Bucking with a Wedge If the wood diameter is large enough to insert a soft wooden or

plastic bucking wedge without touching the chain, one should be used to hold the cut open to prevent pinching. (Fig. 27)

been notched.

will fall. It should be made on the side of the tree facing the felling direction. Cut a notch about 1/3 the diameter of the trunk in the

side of the tree. Make the notch cuts so they intersect at a right angle to the line of fall. This notch should be cleaned out to leave a

straight line. To keep the weight of the wood off the saw, always make the lower cut of the notch before the upper cut. (Fig. 18)

and horizontal, and at a minimum of 2 inches (5 cm) above the horizontal cut of the notch (Fig. 18). If the diameter of the tree is greater than the length of the guide bar, make two cuts as shown

(Fig. 19). When the felling cut gets close to the hinge, the tree should begin to fall (Fig. 20). If there is any chance the tree may

not fall in the desired direction or if it may rock back and bind the saw chain, stop cutting before the felling cut is complete and use

wedges of wood or plastic to open the cut and drop the tree along its desired line of fall (Fig. 21).

recheck the area for bystanders, animals and obstacles.

enough for the tree to either fall or settle back on the stump. Then insert soft wooden or plastic wedges into the cut so

that they do not touch the chain. Drive wedges in, little by

little, to help jack the tree over.

leave a band of wood between the notch and back cut (approximately 2 inches (5 cm) or 1/1 Othe diameter of the tree). This is called "hinge" or "hingewood." It

controls the fall of the tree and prevents slipping, twisting or shootback of the tree off the stump.

the engine and put down the unit immediately. Retreat along the cleared path, but watch the action in case something falls along

the retreat path.

Work slowly, while maintaining a proper grip and stance.

Leave the larger support limbs under the tree to keep the tree off

the ground while cutting.

Limbs should be cut one at a time. Remove the cut limbs from the

work area often to help keep the work area clean and safe.

Branches under tension should be cut from the bottom up to avoid binding the chain saw.

Keep the tree between you and the chain saw while limbing. Cut

from the side of the tree opposite the branch that is being cut.

Work slowly, while maintaining a proper grip and stance. Cut only one log at a time.

Keep a clear cutting area. Make sure that no objects can contact the

guide bar nose and chain during cutting; this can cause kickback.

Refer to Understanding Kickback in the Safety Information section.

When bucking on a slope, always stand on the uphill side of the

log. To maintain complete control of the chain saw when cutting

through the log, release the cutting pressure near the end of the cut without relaxing the grip on the chain saw handles. Do not let

the chain contact the ground. After completing the cut, wait for the saw chain to stop before moving the chain saw. Always stop the

engine before moving from log to log.

be cut off is not resting on the ground. The best way to hold

a log while bucking is to use a sawhorse. When this is not

possible, the log should be raised and supported by the limb stumps or by using supporting logs. Be sure the log being cut is securely supported.

bottom (underbuck) 1/3 of the way through the log to avoid splintering. Second, cut from above (overbuck) to meet the first

cut and avoid pinching.

1/3 of the way through the log to avoid splintering. Second, underbuck to meet the first cut and avoid pinching.

Underbucking_._ _)_

1/10 Diameter

I I __ 1/3 Diameter

Fig. 18

Back

Wedge

Limbing

1 ----_)_ o

Cut Limbs One at a Time and Leave Support

Limbs Under the Tree Untilthe Log isCut

Log Supported at One End

Finishing Cut Load

Fig. 19

Fig. 20

Fig. 21

Fig. 22

First Cut - 1/3 Diameter

Fig. 23

Log Supported at Both Ends

First Cut - 1/3 Diameter

Load

Finishing Cut

Fig. 24

Overbucking

Bucking with

a Wedg__

_ Wedge

Fig. 26 Fig. 27

PRUNmNG

_[_ WARNING: If the limbs to be pruned are above

chest height, hire a professional to perform the pruning.

Pruning Load Second Cut

WARNING:

touch or adjust the chain while the engine is running.

I The saw chain is very sharp; always wear protective

I I g oves when perform ng ma ntenance on the chan.

To avoid possible serious injury, never

Flats

branches. Falling branches can cause serious injury.

_ WARNING: Use caution when pruning heavy

Always wear head protection, plan a safe exit from the First Cut

path of falling limbs and stay alert. 1/3 Diameter

Pruning is the process of trimming limbs from a live tree (Fig. 28).

Work slowly, while maintaining a proper grip and stance. FinishingCut Do not cut from a ladder; this is extremely dangerous. Leave this

operation for professionals. Fig.28 Do not cut above chest height, as a saw held higher is difficult to control during kickback. When pruning trees it is important not to make the finishing cut next to the main limb or trunk until the limb is cut

further out to reduce the weight. This prevents stripping the bark from the main member.

1. Underbuck the branch 1/3 through for the first cut.

2. The second cut should overbuck to drop the branch off.

3. Make the finishing cut smoothly and neatly against the main member so the bark will grow back to seal the wound. CUTTING SPRINGPOLES

_L_ ARNING: Watch for springpoles; these can Spdngpole

A springpole is any log, branch, rooted stump, or sapling that is bent

under tension by other wood so that it springs back if the wood

strike the operator, causing serious personal injury.

holding it is cut or removed (Fig. 29). On a fallen tree, a rooted stump has a high potential of springing back to the upright position during

the bucking cut to separate the log from the stump.

Fig. 29

WARNING: Before inspecting, cleaning or servicing the unit, stop the engine, wait for all moving parts

to stop, allow the unit to cool, disengage the chain brake and disconnect the spark plug wire to ensure that the unit cannot start. Failure to follow these instructions can result in serious personal injury or

property damage.

MAmNTENANCE SCHEDULE Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be

a part of any seasonal tune-up. NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures,

take your unit to any non-road engine repair establishment, individual or authorized service dealer.

NOTE: Maintenance, replacement or repair of the emission control devices and system may be performed by any

non-road engine repair establishment, individual or authorized service dealer.

NOTE: Please read the California/EPA statement that came with the unit for a complete listing of terms and coverage

for the emissions control devices, such as the spark arrestor, muffler, carburetor, etc.

A good preventive maintenance program of regular inspection and care will increase the life and improve performance

the unit. This maintenance checklist is a guide for such a program. Cleaning, adjusting and part replacement may be required, under certain conditions, at more frequent intervals than

those indicated.

CUSTOMER RESPONSiBiLiTY

MAINTENANCE CHECKLIST

ACTION 10 HOURS OF 20 HOURS OF

Check for loose screws/nuts/bolts and j-

tighten as needed

BEFORE EACH AFTER EACH

USE USE

Clean the air filter (replace when necessary) Inspect and clean the spark plug (replace

when necessary) J"

Inspect and clean the spark arrestor screen j- and muffler

Check the bar lube reservoir level (refill j- frequently)

Inspect fuel hoses*

Inspect the chain brake components*

Clean the unit and inspect decals J"

Clean the guide bar groove and oil j- passages

Clean the cylinder fins

Check for damaged or worn parts J" Check the chain tension (adjust as needed) J"

Check the sharpness of the chain J"

Lubricate the sprocket tip J"

Check the fuel mixture J"

*If maintenance or replacement are required, have the unit serviced by an authorized service dealer.

AFTER EVERY AFTER EVERY

OPERATION OPERATION

I _ I CAUTION: A chain tensioned while warm, may be

too tight upon cooling. Check the "cold tension" before next use.

ADJUSTING THE CHAIN TENSION The chain must be tensioned whenever the flats on the drive links

hang out of the bar groove (Fig. 30). Check for proper chain tension before starting the unit and periodically during operation. NOTE: A new chain tends to stretch. Check the chain tension

frequently and tighten as required.

1. Stop the engine, wait for all moving parts to stop, allow the unit to cool, disconnect the spark plug wire and disengage the chain brake.

2. Slightly loosen the bar-retaining nuts (Fig. 31).

3. Hold the guide bar tip up and rotate the chain-tensioning screw (Fig. 32) clockwise with a standard screwdriver to tension the

chain. The desired tension depends on the temperature of the chain:

o Cold Chain Tensioning - A cold chain is correctly tensioned

when there is no sag on the underside of the guide bar and the chain seats snugly against the guide bar with the drive links in

the bar groove. Warm Chain Tensioning - During normal operation, the

temperature of the chain will increase. The drive links of a correctly tensioned warm chain will hang approximately 1/16

inch (1.3 ram) out of the bar groove (Fig. 33).

4. Once adjusted, lift the tip of the guide bar up to check for proper tension (Fig. 34). If the chain is still too loose, release the tip of the

guide bar and turn the chain-tensioning screw 1/2 turn clockwise. Repeat this process until the desired tension is achieved.

NOTE: If the chain is too tight, it will not rotate. To loosen the chain,

turn the chain-tensioning screw 1/4 turn counterclockwise.

Ensure that the chain can be turned by hand without binding (Fig. 35). Also note that the chain will not rotate if the chain

brake is engaged.

5. Hold the tip of the guide bar up and securely tighten the bar- retaining nuts.

REMOVlNG/REPLACmNG THE GUIDE BAR AND CHAIN

Use only a low-kickback saw chain that has met kickback

performance per ANSI B175.1 for this saw. This fast-cutting chain provides kickback reduction when properly maintained.

NOTE: When replacing the guide bar and chain, use only

manufacturer suggested replacement parts. The use of any other parts may create a hazard or cause product damage and will VOID the warranty.

Removing the Old Guide Bar and Chain

1. Make sure the engine is off and the spark plug wire is disconnected. Disengage the chain brake.

2. Remove the bar-retaining nuts with the supplied multi-purpose tool. Remove the guide bar cover and guide bar plate by pulling

them straight out (Fig. 31).

3. Remove the guide bar and chain from the mounting surface.

4. Remove the old chain from the guide bar.

installing the New Guide Bar and Chain

1. Lay out the new saw chain in a loop and straighten any kinks. The cutters on the top of the guide bar should face toward the guide

bar tip in the direction of chain rotation (Fig. 36). If they face backward, turn the loop over.

2. Place the chain drive links into the bar groove as shown (Fig. 37). NOTE: Make sure the chain is correctly installed and the cutters are

facing in the correct direction (Fig. 36).

3. Position the chain so there is a loop at the back of the guide bar.

4. Hold the chain in position on the guide bar and place the loop

around the drive sprocket.

5. Fit the guide bar flush against the mounting surface so that the

two guide bar bolts are in the guide bar slot (Fig. 31).

NOTE: Make sure that the chain-tensioning pin is in the chain-

tensioning pin hole (Fig. 38).

6. Replace the guide bar plate so that the bent edges (top and

bottom) are directed away from the chain.

7. Replace the guide bar cover and bar-retaining nuts. Tighten the

bar-retaining nuts hand tight.

NOTE: Do not over-tighten the bar-retaining nuts. The guide bar

should still be free to move for chain tension adjustment.

8. Adjust the chain tension. Refer to the Adjusting the Chain Tension

instructions above. ADJUSTING THE AUTOMATIC OILER The oiler automatically delivers the proper amount of oil to the guide

bar and saw chain. As the engine speed increases, so does the oil

flow. The amount of oil flowing to the guide bar and saw chain may

be changed by turning the adjustment screw with a small standard

screwdriver. Turn the screw clockwise to decrease oil flow or turn the screw counterclockwise to increase oil flow (Fig. 39).

Fig. 30

Guide Bar Cover

Guide Bar Bolts Guide

Guide Bar Plate

Bar-retaining Nuts

Fig. 31

Chain-tensioning Screw

Fig. 32

Fig. 33

Fig. 35

__ Chain

Chain Driv_ _

Links _

Fig. 36

Bar Slot

Fig. 38

Links

Fig. 37

Automatic Oiler Adjustment Screw

Pin Hole

Fig. 39

CHAIN MAINTENANCE For smooth and fast cutting, the chain needs to be maintained properly.

The following conditions indicate that the chain requires sharpening:

Wood chips are small and powdery. The chain must be forced through the wood during cutting.

The chain cuts to one side.

During maintenance of the chain, consider the following:

The depth gauge (or raker clearance) setting determines the height at which the cutter enters the wood and the size of the wood chip

that is removed (Fig. 40). Too much clearance increases the potential for kickback. Too little clearance decreases the size of

the wood chip, thus decreasing the chain's cutting ability. If the cutter teeth have hit hard objects, such as nails and stones,

or were abraded by mud or sand on the wood, have a service dealer sharpen the chain.

NOTE: Inspect the drive sprocket for wear or damage when

replacing the chain. If signs of wear or damage are present in the areas indicated, have the drive sprocket replaced by

an authorized service center.

NOTE: If you do not fully understand the correct procedure for

sharpening the cutters after reading the instructions that follow, have the saw chain sharpened by an authorized

service center or replace the chain with a recommended low-kickback chain.

SHARPENING THE CUTTERS

_ ARNING: A dull or improperly sharpened chain

_ WARNING: Improper chain sharpening increases

can cause excessive engine speed during cutting, which may result in severe engine damage.

the potential of kickback. Failure to replace or repair a damaged chain can cause serious injury.

Be careful to file all cutters to the specified angles and to the same length. Fast cutting can be obtained only when all cutters are uniform.

Tighten the chain tension enough so that the chain does not wobble. Do all of the filing at the midpoint of the guide bar. Wear

gloves for protection. Use a 3/16" round file and holder.

Keep the file level with the top plate of the tooth (Fig. 41). Do not let the file dip or rock (Fig. 42).

Using light but firm pressure, stroke towards the front corner of the tooth (Fig. 42). Lift the file away from the cutter before returning

the file to the beginning of the sharpening stroke. Put a few firm strokes on every tooth. File all left hand cutters in

one direction (Fig. 43). Then move to the other side and file the right hand cutters in the opposite direction (Fig. 43). Occasionally

remove filings from the file with a wire brush.

Top Plate Filing Angle

CORRECT (30°) - File holders are marked with guide marks to align the file properly and produce the correct top plate angle (Fig. 44).

INCORRECT (LESS THAN 30 °) - For cross cutting (Fig. 45). INCORRECT (MORE THAN 30°) - This creates a feathered edge

that dulls quickly.

Side Plate Filing Angle

CORRECT (80 °) - This is produced automatically if the correct diameter file is used in the file holder (Fig. 44).

INCORRECT (HOOK) - This causes the chain to "grab" and dull quickly, increasing the potential for kickback. A hook is caused by

using a file with too small a diameter or a file held too low (Fig. 45). INCORRECT (BACKWARD SLOPE) - This causes a need for too

much feed pressure, producing excessive wear to the guide bar and chain. A backward slope is caused by using a file with too

large a diameter or a file held too high.

MAINTAINING DEPTH GAUGE CLEARANCE

Maintain the depth gauge at a clearance of 1/32" (0.6 mm). Use a depth gauge tool for checking the depth gauge clearances. (Fig. 40)

Every time the chain is filed, check the depth gauge clearance. Use a flat file and a depth gauge jointer to lower all gauges

uniformly (Fig. 46). Use a 1/32 inch (0.6 mm) depth gauge jointer.

After lowering each depth gauge, restore the original shape by

rounding the front (Fig. 47). Be careful not to damage adjoining drive links with the edge of the file.

Depth gauges must be adjusted with the flat file in the same direction the adjoining cutter was filed with the round file. Use care not to contact the cutter face with the flat file when

adjusting depth gauges.

Raker Clearance

1/32" (0.6 mm)

Cutting Corner

Gullet -_- -_ _J,J

Fig. 40

Filing Height

Fig. 41

Filing Angle

Fig. 42

Left Hand

Cutters

Right Hand

Cutters

Fig. 43

Correct

Filing Angles

Top Plate

Side Plate __ o°

Fig. 44

30°

incorrect Less Than 30° More Than 30°

Top Plate

Filing Angles @ @

Hook Backward Slope

Fig. 45

Depth Gauge Jointer

Fiat File

Fig. 46

Restore Original

Shape by Rounding

the Front

MAINTAINING THE GUIDE BAR

To minimize guide bar wear, the following maintenance procedures are recommended:

Rotate the guide bar frequently at regular intervals (for example,

after every 5 hours of operation), to ensure even wear on the top and bottom of the guide bar (Fig. 48).

Clean the guide bar groove and oil passages whenever the saw chain

is removed, when the unit has been used heavily or when the saw chain appears dirty (Fig. 49). Oil passages can be cleaned with a soft wire small enough to insert into the oil discharge hole (Fig. 49).

NOTE: If the oil passages are clear, the saw chain will give off a

spray of oil within seconds of starting the unit.

Frequently check the guide bar for damage. Feathering and burring of

the guide bar rails (the ridges on either side of the bar groove) is a

normal process of guide bar wear. Such faults should be smoothed

Fig. 48

with a file as soon as they occur. A guide bar with the following faults should be replaced:

Wear inside the guide bar rails that permits the chain to lay sideways.

Bent guide bar. Cracked or broken rails.

Spread rails.

Lubricating the Guide Bar Sprocket Tip

CAUTION: The guide bar sprocket tip was pre- lubricated at the factory. Lubrication of the guide bar sprocket tip is recommended after every 10 hours of

operation or once per week, whichever comes first. Always thoroughly clean the guide bar sprocket tip

before lubrication. Failure to lubricate the guide bar sprocket tip as explained below will result in poor

performance and seizure, voiding the warranty.

Fig. 49

NOTE: It is not necessary to remove the saw chain to lubricate the

guide bar sprocket tip.

1. Clean the guide bar sprocket tip.

2. Insert the tip of the lube gun (not included) into the lubrication hole and inject grease until it appears at the outer edge of the

guide bar sprocket tip (Fig. 50).

NOTE: The lube gun is recommended for applying grease to the

guide bar sprocket tip. The lube gun is equipped with a

needle nose tip, which is necessary for the efficient

application of grease to the guide bar sprocket tip.

Fig. 50

3. Rotate the saw chain by hand. Repeat the lubrication procedure until the entire guide bar sprocket tip is greased.

CLEANING THE AIR FILTER

I_ ! CAUTION: Never operate the unit without the air i

1. Remove the air filter cover by loosening the cover-retaining

filter, Dust and dirt will be drawn into the engine and damage it. Keep the air filter clean,

screws (Fig. 51). The cover will lift off.

Fi,ter

2. Remove the air filter.

3. Wash the air filter in clean, warm, soapy water. Rinse the air filter in clean, cool water. Allow the filter to air dry completely.

Fig. 51

NOTE: It is advisable to have a supply of spare air filters.

4. Install the air filter and replace the air filter cover. Make sure the air filter cover fits properly. Tighten the cover-retaining screws securely. Screen

CLEANING THE SPARK ARRESTOR SCREEN _- I / ./_.__.,____

NOTE: A clogged spark arrestor screen will dramatically reduce I _r---q r_ I

1. Locate the muffler assembly at the front of the unit. Use a small flat-blade screwdriver to remove the two plugs from the muffler

Outer Spark Muffler

Deflector Arrestor Assembly

Plugs (2)

assembly.

engine performance. !ie_t_4 (_ __ __i_

2. Use a T27 Torx wrench to remove the two muffler-retaining screws G (Fig. 52).

3. Remove the muffler assembly and gasket from the unit. Deflector-retaining

4. Use the multi-purpose tool or a #2 Phillips screwdriver to remove Fig.52 the deflector-retaining screw.

Screw Muffler-retaining Screws

5. Remove the outer deflector and spark arrestor screen.

6. Use a small wire brush to remove debris from the spark arrestor screen.

7. Reconnect the spark arrestor screen and outer deflector to the muffler assembly. Make sure the two tabs on the outer deflector are inserted into the two slots on the muffler assembly. Tighten the deflector-retaining screw

securely.

8. Insert the two muffler-retaining screws into the muffler assembly. Place the gasket behind the muffler assembly so that the two muffler-retaining screws pass through the two holes in the gasket. Make sure the narrow end of the

gasket faces the bottom of the muffler assembly (Fig. 52). Insert the muffler assembly and gasket into the cavity at the front of the unit so that the screws align with the two screw holes in the front cavity. Tighten the muffler-

retaining screws securely to a torque of 80-90 in.lbs. If necessary, hold the gasket from the side with a pair of needle-nose pliers while tightening the screws. If assistance is required for achieving the proper torque, have the

unit serviced by an authorized service dealer.

Insert the two plugs into the muffler assembly. With a blunt tool, lightly tap the plugs firmly into place.

NOTE: Do not operate the unit without the plugs securely installed. INSPECTING/ADJUSTING/REPLACING THE SPARK PLUG

NOTE: For efficient operation, the spark plug must be kept clean

Spark

Plug

and properly gapped.

_ WARNING: Do not sand blast, scrape or clean |

1. Push the stop switch up to the STOP position.

2. Use the multi-purpose tool to remove the two retaining screws

3. Disconnect the wire connector from the spark plug by pulling and

4. Remove the spark plug with a spark plug socket wrench. DO NOT

spark plug electrodes. Dislodged grit could damage the cylinder. Replace corroded spark plugs.

from the top plate (Fig. 53). Remove the top plate.

twisting at the same time (Fig. 53).

USE ANY OTHER TOOL.

Top

Fig. 53

5. Check the electrode gaps with a wire feeler gauge. The gap should be set to 0.025 in. (0.635 mm). Adjust the gaps if necessary.

6. Reinstall the correctly gapped spark plug or, if needed, install a new spark plug (Champion® RDJ8J or equivalent).

NOTE: A resistor spark plug must be used for replacement (part number 753-06269 or Champion® RDJ8J).

CARBURETOR ADJUSTMENT The carburetor was pre-set at the factory for optimum performance. If further adjustments are necessary, please have

the unit serviced by an authorized service dealer.

Fig. 47

_ WARNING: Do not let brake fluids, gasoline, petroleum-based products, penetrating oils, etc., come |

CLEANING INSTRUCTIONS

1. Stop the engine and wait for all moving parts to stop. Cylinder Fins

2. Allow the unit to coo!.

3. Slacken the chain !f it was retensioned at operating temperature

4. Wipe the unit down with a damp cloth. Do not douse the unit with

5. Debris must be removed from the cylinder fins on a regular basis to reduce the risk of damage to the unit and

6. Spray the guide bar and chain with corrosion inhibiting oil STORAGE INSTRUCTIONS

NOTE: !t is normal for oil to seep from the unit when it is not in use. Please take this into consideration when storing

1. Follow the Cleaning Instructions listed above.

2. Attach the scabbard to the guide bar and chain.

3. Store the unit in a dry, high and/or locked location, out of the reach of children and other unauthorized persons.

Long-term Storage Instructions In addition to the standard storage instructions described above,

perform the following steps when storing the unit for 30 days or more:

1. Drain the fuel tank by running the unit dry. Alternatively, tip the

2. Allow the engine to cool.

3. Remove the spark plug. Refer to Inspecting/Adjusting/Replacing

4. Pour 1 teaspoon of clean 2-cycle oil into the combustion chamber

5. Replace the spark plug. F_g.55 Removing a Unit From Long-term Storage

1. Remove the spark plug.

2. Pull the starter rope briskly to clear excess oiI from the combustion chamber.

3. Clean and gap, or replace, the spark plug.

4. Prepare the unit for operation.

in contact with plastic part& These chemicals may damage, weaken and destroy plastic, which may result in serious personal injury.

during cutting work. The chain contracts as it cools down. If it is not slackened, it may damage the gearbox and bearings.

water. Do not use so!vents or strong detergents. If preparing the unit for long-term storage (three months or more), remove the chain and guide bar, then clean the unit thoroughly with a damp

cloth. A firm-bristled, non-wire, brush can be used to remove debris from the bar groove and assembly. When finished, reassemble the unit. Refer to Removing!Replacing the Guide Bar

and Chain. Fig.54

personal injury from fire. Use compressed air, at 40 PSI or !ower, to blow debris from the cylinder fins (Fig. 54). A!ways wear safety goggles!glasses when cleaning the cylinder fins with compressed ain Use a small wire brush to dislodge stubborn debris. Do not use water or solvents on the cylinder fins. If there is a significant amount of debris that remains after cleaning, have the cylinder fins cleaned by an authorized service dealer.

the unit.

Always store the unit and fuel in a cool, weIFventilated space where fuel vapors cannot reach sparks or open flames from water heaters, electric motors or switches, furnaces, etc. Never store the unit, with fuel in the tank,

inside a building where fumes may reach an open flame or spark.

engine housing/fuel tank over to pour the fuel mixture into a suitable container and then run the engine until it stops in order to

remove fuel from the carburetor.

the Spark Plug=

(Fig. 55). Pull the starter rope slowly several times to coat the internal components.

CAUSE SOLUTION

o _ 0 = ,= ." he _ e o =

The carburetor mixture adjustment setting is incorrect Have the carburetor adjusted by an authorized service

The fuel tank is empty

The choke lever is in the wrong position

The air fi!ter is dirty

The air filter is plugged

The fuel is old and!or improperly mixed

center

Fill the fuel tank with properly mixed fuel

Move the choke lever to Position 2

Clean the air filter

Clean or replace the air filter

O_D

Drain the fuel tank and add fresh, properly mixed fuel

iii ii_ii

The spark plug is fouled Clean, gap or replace the spark plug

iiii

The spark arrestor screen is plugged Clean the spark arrestor screen

The fuel mixture !s incorrect

D =,= , D , ,_ " = e

The bar lube reservoir is empty

The oil flow from the automatic oiler to low

Drain the fuel tank and add fresh, properly mixed rue!

Refill the bar lube reservoir

increase the oil flow from the automatic oiler

! ii{i i i 'i:_

.......

, DO 0 _0 ' €" =

The guide bar and chain are assembled incorrectly Refer to Removing/Replacing the Guide Bar and Chain

The drive assembly is damaged Refer to Service Information

The chain is on backwards Reverse the direction of the chain

NOTE: For repairs beyond the minor adjustments listed above, locate your nearest authorized service center by

calling the Customer Support Department at 1=866-206=2707 (U.S.) or t=877=696_5533 (Canada},

Engine Type ..................................................................... Air-Cooled, 2-Cycle

Displacement ...................................................................... 51 cc (3.11 cu in)

Idle Speed .............................................................................. 2,800 rpm

Operating Speed ......................................................................... 8,500 rpm

Ignition Type ............................................................................. Electronic

Ignition Switch ......................................................................... Slide Switch

Starter ..................................................................... AST Starting Auto Rewind

Throttle Control .................................................................... Finger-Tip Trigger

Throttle ....................................................................... Manual Spring Return

Spark Plug Gap .................................................................. 0.025 in (0.635 ram)

Carburetor ................................................................... Diaphragm, All-Position

Muffler .......................................................................... Baffled with Guard

Drive Sprocket ............................................................................. 6-Tooth

Lubrication ........................................................................ Bar and Chain Oil

Bar Lube Reservoir Capacity ........................................................... 15 fl oz (443 mt)

Fuel!Oil Ratio ................................................................................. 40:1

Fuel Tank Capacity ................................................................... 18 fl oz (532 m 0

Cutting Diameter ..................................................................... 36 in (91.4 cm)

Bar Length .......................................................................... 18 in (45,7 cm)

Chain Pitch .......................................................................... 325 in (8.2 mm)

Chain Gauge ....................................................................... 0.05 in (1.27 ram)

Approximate Unit Weight (no fuel} ....................................................... 17.5 Ibs (7.9 kg)

* All specifications are based on the latest product information available at the time of printing. We reserve the right

to make changes at any time without notice.

REPLACEMENT PARTS

Part # Description

753-06265 .................................... 18-inch Chain

753-06264 .................................... 18-inch Guide Bar

753-06270 .................................... Bar Lube Reservoir Cap

753-06271 .................................... Bar-retaining Nuts

753_06272 .................................... 8 oz Bar and Chain Oil

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