Replace Fuel Filter; Chain Sharpening; Chain Adjustment - Poulan Pro PP4218AV Instruction Manual

5. Replace with Champion RCJ- 7Y or Torch
R7 spark plug and tighten securely with a
3
/ inch (19 mm) socket wrench. Spark
4
plug gap should be 0.025 inch (0,6 mm).
6. Reinstall the spark plug boot.
7. Reinstall the cylinder cover and 3
screws. Tighten securely.
Spark
Plug Boot
Spark
Plug

REPLACE FUEL FILTER

To replace fuel filter, drain your unit by running it
dry of fuel. Remove fuel cap and its connected
retainer from tank. Pull filter from tank and re-
move from line. Replace and reassemble.

CHAIN ADJUSTMENT

See CHAIN TENSION in ASSEMBLY section.

CHAIN SHARPENING

WARNING:
ening techniques and/or depth gauge mainte-
nance will increase the chance of kickback
which can result in serious injury.
WARNING:
when handling chain. The chain is sharp and
can cut you even when it is not moving.
Conditions which indicate the need for chain
sharpening:
S Reduction in size of wood chips. The size
of the wood chip will decrease as the chain
gets duller until it becomes more like a
powder than a chip. Note that dead or
rotted wood will not produce a good chip.
S Saw cuts to one side or at an angle.
S Saw has to be forced through the cut.
Tools required:
S 5/32 inch (4 mm) diameter round file and
file holder
S Flat file
S Depth gauge tool
TO SHARPEN CHAIN:
1. Move ON/STOP switch to the STOP
position.
2. Check chain for proper tension. Adjust
chain tension if necessary. See CHAIN
TENSION section.
3. Sharpen cutters.
S To sharpen the cutters, position the
file holder level (90° ) so that it rests
on the top edges of the cutter and
depth gauge.
Cylinder
Cover
Improper chain sharp-
Wear protective gloves
NOTE:
The chain has both left and
right hand cutters.
File Holder
File
Cutter
S Align the 30° file holder marks paral-
lel with the bar and to the center of the
chain.
30°
File Holder Line
S Sharpen cutters on one side of the
chain first. File from the inside of each
cutter to the outside. Then, turn the
chain saw around and repeat the pro-
cess for the other side of the chain.
S File on the forward stroke only. Use 2
or 3 strokes per cutting edge.
S Keep all cutters the same length
when filing.
S File enough to remove any damage
to cutting edges (side plate and top
plate of cutter).
All Cutters
Same Length
S File chain to meet the specifications
as shown.
30°
Hook Angle
Too Much Hook Angle
WARNING:
hook angle according to the manufacturer's
specifications for the chain you are using. Im-
proper hook angle will increase the chance of
kickback which can result in serious injury.
17
90°
Depth Gauge
Cutter
Cutter
Remove Damage
Top Plate
Side Plate
80°
0.025 inch
(0.65 mm)
Rounded
Corner
Right
Squared Off
Corner
Wrong
Maintain the proper
60°