Poulan 3300 manual Spark Arrestor and Spark Plug, Guide BAR Maintenance, Groove Square

5.) Correct Depth Gauges

a.) Place depth gauge tool over each cutter depth gauge, Figure 31.

b.) File level with the flat file if depth gauge is higher than the depth gauge toot.

c,) Maintain rounded front corner of depth gauge with a flat file. Figure 31 &32.

NOTE: The very top of the depth gauge should be fiat with the front half rounded off with a flat file.

_WARNING

Depth gauge tool is required to insure proper depth

gauge. Filing the depth gauge too deep will increase the chance of kickback which can result in serious

injury.

b. CHAIN REPLACEMENT

1.) Use onlythe Low-KickChain specified for

your saw in "Specifications"	for replace-
ment chain.

2.) Replace the chain when cutters or links break,

3.) See a qualified service dealer to replace and sharpen individual cutters for match- ing your chain.

4)Always have a worn sprocket replaced by

a qualified service dealer when installing a new chain to avoid excessive wear to the chain,

REMOVE SAWDUST

FROM GUIDE BAR GROOVE

HOLES

Figurs 33

B, SPARK ARRESTOR AND SPARK PLUG

1.SPARK ARRESTOR

•Carbon deposits build up on the spark ar- restor, as the saw isused and must be removed to avoid creating a fire hazard or causing engine dam- age.

•Replace the spark arrestor if breaks occur.

•Keep the spark arrestor clean at all times.Clean.

-- as required

--atleast once for each 25-30 hours of

operation

Items required:

--wire brush,

--3/8" wrench

a.Disconnect the spark plug wire,

b.Remove the heat shield, Figure 35,

c.Remove the screen from the diffuser.

d.Clean the screen with a wire brush or replace if breaks are found.

e.Reassemble parts.

2.GUIDE BAR MAINTENANCE

•Conditions Which can require guide bar maintenance:

m saw cuts to one side

--saw has to be forced through a cut

--inadequate supply of oil to bar and chain,

•Check the condition of the guide bar each time the chain is sharpened. A worn guide bar will damage the chainand make cutting more difficult.

•Replace the guide bar when:

--the inside groove of the guide bar roils is worn.

--the guide bar is bent or cracked.

•Use only the Reduced-Kickback Guide Bar

specified for your saw in "Specifications," for replacement.

a.Remove the guide bar to service.

b.Clean oil holes at least once for each five hours of operation, Figure 33.

c.Remove sawdust from the guide_bar groove periodically with a putty knife or a wire. Figure 33.

d.Remove burrs by filing the side edges of the guide bar grooves square with a flat file. Figure 34.

e..Restore square edges to an uneven rail top by filing with a flat file, Figure 34,

CORRECT

GUIDE BAR WORN GROOVES	FILE EDGES
GROOVE	SQUARE

Figure 34

HEAT SHIELD DIFFUSER

SPARK ARRESTOR! SCREEN

Figure 35

2.SPARK PLUG

•Replace the spark plug when necessary:

•If you perform this maintenance yourself,note the "Caution" below.

I CAUTION:IDo not mix chrome-colored fan housing screws with the black-colored cylinder shroud screws. Other than color, these screws are similar in appearance; but if interchanged, they can strip out and/or cause permanent engine damage.

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