Echo CS-451VL Instruction Manual

I

AL

QMODEL CS-451VL

CONTENTS

lJ

o

3.

4. _

5.

6.

7.

8.

Specifications ..................

Designations of parts ......... ...

How to fit the b'ar and chain .....

Fuel and lubricant .............

Starting the engine .............

Running and stopping the engine . . .

Felling and lumbering ............

Tips for your safety .............

2

3

4

6

7

9

.10

.11

10.

11.

9.

Setting the chain and servicing the bar

Engine maintenance. : ............ :.

Trouble shooting .................

.12

-16

• 23

- 1-

Q Engine

1. SPECIFICATIONS

Type:

Piston displacement:

(bore x stroke)

Direction of revolution:

Magneto:
Ignition plug:

Carburetor:

Fuel:

Cooling system:

Starting system:

Air-cooled, 2-cycle, single-cylinder engine

44.3 cc (2.7 cu. in)
(42 mm (1.65") x 32 mm (1.26"))

Counterclockwise when viewed from the magneto

side

Flywheel magneto type
NGK BM-6A

Tillotson diaphragm type HU-9 B
Gasoline-oll (Kioritz Echo Oil) mixture

(Mixing ratio: 20: 1)

Forced air coofing
Recoil starter

Lubricating system:
Chain oil:

Transmitting system:

• Tank capacity
Fuel tank:

Oil tank:

• Saw
Chain:

Bar:

Manual or automatic oiler

KioritzChain Oil

Automatic centrifugal clutch

0.57£ (1.2 U.S. pt)

0.25£ (0.528 U.S. pt)

Chain pitch 318"; Chain gauge 0.050";

Number of drive links 59

Gauge 0.050"; Length 16" (16K50)

Weight:

11.5 lb (dry) (chain and bar excluded)

--'2--

Recoi] ha,_dle

G:uide bar

Thro _!e lock

Mar_ual oHe_ p_sh

..... 3

3. I I

F _

* Ttke off" d_e guide bar holder ore of _:}_e guide {_a_ side pl_es a__d a

* Leave the _t}_e] s,de p!a_e m pJac_o

To se_ _he bat_ it*ser_ _he cJ_aM m:o _he ba_ hole.

"_ Pu oJ_e end ol _te chain o_ the spr(_¢ker tivs_ d_en the o_her e_d ot i_,

÷ Be st,+e _o place the cha:i_ +n _ c _ig+_v direct{on_

Next. fh c_{ guide bar side plat_,* a_ta the g_ide bar holder

PH_ r]'ae wasneFs aI_d _111:S O:N. a*ld _'lgl_[en tl]e _'UJt% Jig}lilY,

.... .....

+ t

llillIl I% _ % I !_'IIIE=I

=++ +)+++ri++1,:+I>I_,

+<I

t tl {i{,_[ll 1_ ]-_

I_ + J++II+

lie ........

+_+IIP

_ l{=illilll + +_;Iil ,+¢ + ]I.+II= iI[ll} 1114+I ]}i1 ;_

IJIIS ]]_s_II_I "_1+ +'s++'+'_i+ hmI++ ]II_ + _]+i]+++ _IJI

4. FUEL AND LUBRICANT

Fuel

m,

Off

Gasoline

I_otes:

"_ Make sure that the mixing ratio is 20 to 1. Any other ratio will bring

about engine troubles.

¢r If Kioritz Echo Oil is not obtainable, use motor oil for 2-cycle engines.

Do not use any oil other than Kioritz Echo Oil or motor oil for 2-cycle

engines.

o

The fuel used for operating the Echo
451 VL is a mixture of gasoline and
Kioritz Echo Off.

The gasoline-oi] ratio is 20 to 1.

Table for Preparing Gasolin_Oil

Gasoline (£) Oil (_)

1.0 0.05

2.0 0.10

3.0 0.15

4.0 0.20

5.0 0.25

Gasoline (£) Oil (£)

6.0 0.30

7.0 0.35

8.0 0.40

9.0 0.45

10.0 0.50

Mixture

Lubricant

Appropriate lubrication to the chain in operation will reduce to the

minimum the friction between the chain and bar, and will assure a longer
service life. For lubrication, apply Kioriez chain oil.

Notes;

¢r Do not use waste or reclaimed oil which will cause varioustroubles.
_" If Kioritz chain oil is unavailable at your nearby shop, use motor oil

having the following grade:

SAE # 30 ......... in summer

SAlE # 10 ......... in winter (or when cutting resinous trees)

-- 6-

'_ _ _ i¸ _ i q_

! M,_, I i N6_ TH E

rope be su:e to I}<d_{ the cha_
saw f{rm[y on _he gro_ r_d by _J_e

h, vho c hW_-

F{': U>g" [ <_ _f }4:

Whm_ tl_e e_gh'_e is warm

_" To s_cart d'_e engi_e, h>ck _he thr_t le a_d p_di] _he s art_e_ _ope, _f the

e_gine w_ll not s_art pull he r0pe h_ he ame proced_ires as ha _:}ie case
where d_e engine is cool

* When she en_e is wa*m. h' ca_l be _,*arted by pus!:*ing the s_p swkch

a_d pul_ing d-Je rope, without ush'_g the shrott:ie and he choke.

_ When _rying to s_ar* _ the engine wkh ti_e choke puHe& never fali _o put

_he choke in the ori_nal posi_io_ as soo_l as d_e t]rs_ firing sound is

Af'_:e <tliiag t_<' eng{ e p ] he ;gaad_a y _, >ui _ ,1',_

.s+ T_> ,>l:op he engi_ae eteas," ;he }_K_: le a_d pal he swi ch_o OI:F'

* k is e>enda! vo £*miliarize you,:self wi{:h youc chai_;aw beiore _art _g

acua! cu_i_g _}pe,*at o_s,

'_ *{o _hb_ e_d_ *y curt _}g _ t<dfed t_ee severaI t:imes_

* To cut a l:ree, open the _[}l'e'H:_e fuI_y _d place _e spike aga[_Isv _he

ttee, a**d the chai_ 5_aw wil_ do _},e resv, s no_ required _o {ir_ y
press t_e cha_saw again _ _'_e tree

* Decide o_ _hc° dh:ec_ion of k*_ock_g do,am a _ree.
* The_l remove aii o_sl.acle aro_md the _:ee s<_ t_av you cat: opera,,e Nm

cha_a aw _v[_}_ease agd saG_y,

* Fur her, for the sa:[Te_ysake fh_d a si_elte:r uear _l_e tee.

* Make a c_ o_, Ihe _ree o_ _]_e ide to w_ic]_ _}}e tree is _o be bH_ gh_

* T}_e_ make anot}_er cut on the opposke sde at a level a {iH[e }_[g}_e

_:ha '_:_i_e previo_s[y made one:

Be:[ore iumber_go ascer_aia laa_ _he _ree Rqled is frm]y pIaced o_! {_*e

Keep {he _ee oK' 5he g_ou_d by u h}ga suppor te_ l_e ch_i_ or bar i_;

caug_t in die cut

8. TIPS FOR YOUR SAFETY

Be sure to observe the following because felling and lumbering operations
often attend extreme d_ngers:

1. Start the engine unaided, keeping any person off.

2. Do not let anybody come near the chainsaw operator.

3. When two operators or more are to work at the same time, there should

be left a sufficient space between each other.

4. If an operator is to move to another place, he sure to stop the engine
first.

S. When required to adjust the chain tension or to set the chain, stop the

engine.

6. Hold the chainsaw by both haffds when cutting a tree.

7. Replenish fuel at a place where there is no fire.

8. Do not try to start the engine at the place where fuel has been supplied.

-- 11--

9. SETTING THE CHAIN AND SERVICING THE BAR

Designations of parts

* Chain parts are named as shown m the figure below.

The chain pitch for the Echo 451 VL is 9.525 mm (3/8").

* Do not use a chain with a pitch other than the above-mentioned.

Tie strap Cutter

t_jvet

0.64 mm i (0.025")

\o1-,_oy

Depth gauge

\ /

J

Drive link

The depth gages are intended

for limiting the thrust at the

time of cutting.

The fight and left cutters
must be kept equally sharp.

iiiiiiii b

U 1.3 rnm

\

.oso")

The drive links serve to

eliminate sawdust from the
bar groove. Therefore, the

lower end of each link

should be kept sharp.

-- 12 --

Setting the chain

Care must be exercised in maintaining the chain, as follows:

1. The cutters must be kept sharp.

2. The right and left cutters shoutd be regular in size.
If they are blunt or irregular in size, the cutting efficiency will drop,

and the chain vibrations will increase, bringing the machine to a premature

damage.

Correct setting procedures

•" The chain may be set by the use of a 5.5 mm (7/32") round file or a

flat Fde.

* If the cutters have become smaller after being set many times, a 5 mm

(3t16") round f'de may be used instead of a 5.5 mm (7/32") one.

* Fix the file on the file holder.

. Put the file holder on a cutter and

smooth the cutter only when you

push the file.

Do not smooth the cutter when

you pull the file.

x mark

\

-- 13--

(Correct direction and position of file)

.

Upper edge setting angle (35 °)

The angle of 35 °

35"_is th is standard.

2. LateraI edge setting angle (85")

Use the file,

_. _ maintaining a

i t_nth the file

diameter, as

illustrated.

Length of edge

1'

Chain pitch: 3[8"

3, L_peredge endangle (60 °)

4. Depth gauge

j Depth gauge.

_"_

Olnter

Maintain the
file horizontal

0.64 mm { (0,025")

---[

-- 14 --

Cleaning the chain

* When the chain is stained with resin or other foreign material, remove it

with petroleum, and appty oil to the chain.

Servicing the bar

* Keep the bar groove clean.
* Pay special attention to the oil inlet holes.

, The bar must be used inside out at regular intervals,

Chain and bar

Chain: Pitch 3/8"

Length of bar Gauge 0.05"

Number of drive links

12" (12K50) 48
16" (16K50) 59

20" (20K50) 69

Optional

Standard
Optional

-- 15 --

o_ screws a_d

_asi_g he machir_e,

o( the chah_

eve, y day_

* Tier, ba_: v_R_s be

bar ........... a Check hem every day

be_<,_e sing he m_ct_r_e.

16 .....

plug Check it _,g. _./>

_}u,_ be 0.6 (),7 mm (0,02 6 _

ma_vA_a_ ake ot_ _he pRtg a_d cea_

17

Sploc ke t ('h eck i _ r_gu*a _

* _Ihe wor_>ou_; sp <>c_et w[H c_e de <h_ a premature dam_,_

* If wor_ o_ by 0_25 mm 000984') or :mo_e, _eplace i_: wh:h _ _;cw

C} ' _der fi_ CI k d,_em ,_g_l_:!w

* Whellever clo_ed r_'move he [m _::_,e_ o clea_ tI_e fi_is,

S[ar_:@Y ....

......19

20 ....

Automat:it oiler Cle_:k ! _e%_I_,r]y

[IPU

TI_A

.... 2_ .......

.... e,_

11. TROUBLE SHOOTING

When you have found any trouble with your chainsaw, investigate the

cause with the help of the tables below, and disassemble the component in

trouble to 6x it.

When disassembling, refer to the Part List.

_--Bearing damaged ........................ DL_assemble and replace it.

i

D., I

¢m_ " " L •

_-'_ o .__ condmon Point oxidize_l o_ b_lrnt .............. R_no_e rust with sa_ldpaper.

_o"_ ] p--Condenser defective .................. I_.vrnov¢ and replace it.

I;" o _ _Po_nt m ]"--coil defective ................. Remove and revlgee g.

_. -- good ............ --

o _'._a condilJon _wife COrIReC_On defective ........... Reconnect it.

--_- _a'_ / L"*High-tension co,d .................. I(ccolm_ct _t.

m l connection deeeetlve

-_ / S_ateh is open .......................... Switch on.

._. _.ngulator cracked ....................... Replace plu&

[ f---_No spark _Spcwk gap i_orr¢¢t ................... Adjust it,

| _" _ atplug ]-- Covercd with carbon ............ ;..... Removeit with hrush.

_. _ L--Too mmst ................................. Replace xt.

|_ _" ! Starth_g procedures incorrect ...... Start correctly.

_ -4 ,---Slow and main no_ --.. .

•Engine doee ._Piston and cylinder burnt ........... Disassemble and _eplace them,

not crank I---Crankshafk worn ......................... DLsassembl© and _ep]ace it.

-Fuel is not

re_hlng -- Fuel pipe clogged ....................... Clean it.

garburetor

-Fuel is .or i---- Suction insufficient .................... Make it suf_ient_

teaching _Strainer dogged .......................... Rinse it.

cylinder t----Carburetor out of order .............. Disassemble _nd check it.

_Point in bad rStained with oil or water ............ Clean it with paper or cloth.

t-- Crank.shaft contacting

crankcase .................. Disas_mble and replacg it.

_ _. r---Fuel does.i-- _leedle valve lever spring ....

,mL _ii ru'mng E F_el pump diaphragta de fi:_ ti'_'' R_plac _ it_

_ r--Fuel leaking from f_ing Reti_ten

k'b_A_celera- ]surfa¢es of carburetor ............. _" "

ltiomt_ndcd'_--Fuel t.ank air valve does not Re lace it

ftlttc_n L not w_rk normally ........ P "

I defective Fuel pump does not operate, Sto leak e

L___Ca_bu_¢l_r|clogged with dust .................

ov©rflow t--Diaphragm lever spring not r'orrect it

¢l_el eP_ss_g i_ui_rburctor ........... Disassemble and replace it.

_ e_e pres.._li-_ t:or_et; OUt ...... P ag '

i--Fue_ inlet needle valve CLean it

placed in dent of lever ............

Exhaust pipe sticky with fuel ..... Start the engine several times

This is because fuel is too heavy.
with chocke lever fiflly open.

-- 23 --

Use fuel with correct mixing eati(x Never use

_-- Fuel esed improper ..................... .

O

¢-¢

Engine 1_ Spatrk plug defective (burnt) ............

overheated -'_ As cooling fins clogged, _r

|does not pass well ............

tm Combustion cha.mbe_ _taiaxed

with carbon ........

gasoline of poor quality.
Replace it.

Cle-_tl fins.

Disassemble it and remove carbon.

ow

o

--Fisln 3 _uxactlon P[_tg damaged ot stained ................ R._pLac¢ ot cleo.n it,

F Point gap incorrect ........................ Make it Q35 mm (0.0138")

defective L Comlmsti0n poor due to impaired

or incorrect wiring ........ Check wiring.

-- Carburetor e

defective _ Carburetor o_ rflow ...................... Refer to Table L

I--- Main jet setting incorrect .............. Readjust it.

t.-. Air cleaner clogged ....................... Rinse it.

r'-- Co_pre_ion inefficient

(piston ring stuck or worn out_ .......

__ 0 ther

troubles

,----Chain d_s r_ot _.-Chain wron_y set .......................... Set it correcily_

cut clema "---Depth incorrect ............................ Readjust Jr,

_-- Cylinder chrome plating

--_ ex foliat ed .................

_-- Exhaust po[t clogged with carbon..,

t--_Throttel is not fully open................

F_ Chain tel_ion incorrect ......... ;........ A_just iL

Disa_ernbly, check and replace

it if rie_c_J_ary.

Replace cylinder.
Clean it,

Open it fuLiy.

=.

,g.

4-

Chain stops --_ tze¢too fttml'_ ................ Press it lishtly,

1

(Cu'tchslips) m

ehai_ po_tlT¢ _.I--- Oil delivering an_ount lug ott €ct ....... Adjust Lt,

lubricated _Oil contarnlrmted with duZt ............ Rinse tgnk and replenish new oil.

-- " _ Oil viscosity inappropriate Use 0da with correct viscosity

=.

r-- Chain saw pressed against

k----Cluth shoe worn out ..................... Replace it.

No oil in ta.nk ............................... Refill it,

........... for summer or winter.

- 24-