O. clutch, and drum/sprocket, D. clutch and drum/sprocket – Sears 358.356090-3.7/20" User Manual

Page 21

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5. Remove the pulley screw in the center of the

pulley. Figure 50.

6. Lift the pulley

carefully

while gently twisting it

counterclockwise

,

and remove the

old rope.

7. Move away from the fuel tank and burn the

end of the new rope to go into the pulley.

8. Puli the burnt end while hot through a rag to

smooth it.

9. Feed the rope through the housing and the

round starter hole. Figure 50.

10. Put the rope into the pulley groove and up

through the hole.

11. Wrap rope counterclockwise around pulley

rächet end and tuck loose end back under
rope leaving a 3/8 to 1/2 inch tail.

12. Rewind all the rope onto the pulley, turning

....... couhterclockwise ............... ........... r -- -

-

13. Set the pulley into the housing; push it down

and engage the spring.

14. Replace and tighten the pulley screw.

15. Pull out 12 inches of rope and catch the rope

in the slot in the pulley. Figure 51.

16. Turn the pulley 3 complete turns clockwise,

winding up the spring.

17. Hold the pulley and pull the starter rope to

the full extent of length and let the rope re­
wind slowly.

18. Replace fan housing with the four screws In

their proper location.

Figure 51

O. CLUTCH, AND DRUM/SPROCKET

WARNING!

Do not start engine without Guide Bar, Chain,

and Bar Clamp completely assembled. The

clutch can come off vyithout the guide bar and

chain boihpletely assembled arid serious injury

could result. Do not loosen and spin the clutch

off of the crankshaft with a power too). The
clutch Shbes and drum could separate causing

the clutch to violently fly apart and serious per­

sonal injury could result. V

• Take the saw to yourhearest Sears Service

Center for full clutch inspection and service
after each 100 hours of operation.

It Is recom­

mended

that

you:

do

not

try

Id

service

the

clutch

yourself

unless

you

are

a

competent

small:

engine

mechanic

and

have

the

proper

clutch

service

tools.

Proper

disassembly

and

repair of the clutch is extremely important to

the life of the engine and the safety of the
operator.

• Clutch maintenance is required when:

—the chain continues to turn while engine

idles after the idle speed screw has been

adjusted to its capacity^

—slippage occurs during a cut.
—a chatteririg noise occurs during cutting.

• Clean the clutch, drum /sprocket, and sur­

rounding area daily during heavy use of the
saw.

Check to see that the clutch drum turns

freely and srhbothly.

• inspect the sprocket regularly for wear. A

worn sprocket will make the chain run er­
ratically and will shorten the life of the bar

and chain. Figure 52.

• Replace the sprocket whenever a new chain

is installed

in order to gain the full life ex­

pectancy of the chain. Use the following pro­

cedure:

Items Required:

Scrench
9/16” Socket Wrench

3/4” Socket Wrench

1. Remove the carburetor cover and pull the

spark plug away from the rubber connector.

2. Remove the bar clamp, outer guide plate,

guide bar, and chain. Figure 53.

CHAIN WEAR ON DRIVE SPROCKET

WEAR IS VISIBLE

RIM TYPE WEARS INSIDE

ONSPUR TYPE

(Model 358.354831}

(Model 358.354871)

Figure 52

BAR CLAMP

BAR MOUNTING

NUTS

^_^^OUTER

Д^^СиЮЕ PLATE

Figure 53

21

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