Assembly; Trouble Shooting The Engine - Power Craft PPCS-38cc User Manual

Fig. 27
Fig. 28
BAR WEAR - Turn guide bar frequently at regular
intervals (for example, after 5 hours of use), to ensure
even wear on top and bottom of bar.
OIL PASSAGES - Oil passages on the bar should be
cleaned to ensure proper lubrication of the bar and chain
during operation.
NOTE: The condition of the oil passages can be easily
checked. If the passages are clear, the chain will
automatically give off a spray of oil within seconds of
starting the saw. Your saw is equipped with an automatic
oiler system.
• CHAIN MAINTENANCE
CHAIN TENSION:
Check the chain tension frequently and adjust as often
as necessary to keep the chain snug on the bar, but
loose enough to be pulled around by hand.
BREAKING IN A NEW SAW CHAIN:
A new chain and bar will need chain readjustment after
as few as 5 cuts. This is normal during the break-in
period, and the interval between future adjustments will
begin to lengthen quickly.

TROUBLE SHOOTING THE ENGINE

PROBLEM
Unit won't start or starts but will not run. Incorrect starting procedures.
Incorrect carburetor mixture adjustment
setting.
Fouled spark plug
Fuel filter plugged.
Unit starts, but engine has low power. Incorrect lever position on choke.
Dirty spark arrester screen.
Dirty air filter.
Incorrect carburetor mixture adjustment
setting.
Engine hesitates. Incorrect carburetor mixture adjustment
No power under load.
setting.
Runs erratically.
Incorrectly gapped spark plug.
Smokes excessively.
Incorrect carburetor mixture adjustment
setting.
Incorrect fuel mixture.
CHAIN LUBRICATION:
WARNING: Never have more than 3 links
removed from a loop of chain. This could cause
damage to the sprocket.
Always make sure the automatic oiler system is working
properly. Keep the oil tank filled with Chain, Bar and
Sprocket Oil.
Adequate lubrication of the bar and chain during cutting
operations is essential to minimize friction with the guide
bar.
Never starve the bar and chain of lubricating oil. Running
the saw dry or with too little oil will decrease cutting
efficiency, shorten saw chain life, cause rapid dulling of
chain, and lead to excessive wear of bar from
overheating. Too little oil is evidenced by smoke or bar
discoloration.
CHAIN SHARPENING:
Chain sharpening requires special tools to ensure that
cutters are sharpened at the correct angle and depth.
For the inexperienced chain saw user, we recommend
that the saw chain be professionally sharpened by the
nearest professional Service Center. If you feel
comfortable sharpening your own saw chain, special
tools are available from the professional Service Center.
STORAGE
Keep the machine in a well-ventilated, cool and dry room
when it is not to be used for some time. The fuel reser-
voir should be empty. Always store the machine out of
the reach of children.
PROBABLE CAUSE CORRECTIVE ACTION
Follow instructions in the User Manual.
Have carburetor adjusted by an Authorized
Service Center.
Clean / gap or replace plug.
Replace fuel filter.
Move to RUN position.
Replace spark arrester screen.
Remove, clean and reinstall filter.
Have carburetor adjusted by an Authorized
Service Center.
Have carburetor adjusted by an Authorized
Service Center.
Clean / gap or replace plug.
Have carburetor adjusted by an Authorized
Service Center.
Use properly mixed fuel (40:1 mixture).
12
GB
ASSEMBLY INSTRUCTIONS
• TOOLS FOR ASSEMBLY
You will need these tools to assemble your chain saw:
1. Combination wrench-screwdriver (contained in your
user's kit).
2. Heavy duty work gloves (not supplied).
• ASSEMBLY REQUIREMENTS
WARNING: DO NOT start saw engine until
unit is properly prepared.
Your new chain saw will require adjustment of chain,
filling the fuel tank with correct fuel mixture and filling the
oil tank with lubricating oil before the unit is ready for
operation.
Read the entire user manual before attempting to
operate your unit. Pay particular attention to all safety
precautions.
Your user manual is both a reference guide and hand-
book provided to furnish you with general information to
assemble, operate and maintain your saw.
• GUIDE BAR / SAW CHAIN / CLUTCH COVER
INSTALLATION
WARNING: Always wear protective gloves
when handling chain.
TO INSTALL GUIDE BAR:
To ensure the bar and chain receive oil, ONLY USE THE
ORIGINAL STYLE BAR with the oil passage hole (A) as
illustrated above (Fig. 3A).
1. Make sure the Chain brake lever is pulled back into
the DISENGAGED position (Fig. 3B)
2. Remove the 2 bar retaining nuts (B). Loosen the 2
screws at the rear of the clutch cover (C). Remove
the cover (Fig. 3C).
3. Using a screwdriver, run the adjustment screw (D)
COUNTERCLOCKWISE until the TANG (E) (chain
tensioning peg) is to the end of its travel toward the
clutch drum and sprocket (Fig. 3D).
4. Place the slotted end of the guide bar over the 2 bar
bolts (F). Position the bar so that the adjustment
TANG fits into the lower hole (G) on the guide bar
(Fig. 3E).
A
Fig. 3A Fig. 3B
D
E
Fig. 3D
TO INSTALL SAW CHAIN:
1. Spread chain out in a loop with cutting edges (A)
pointing CLOCKWISE around loop (Fig. 4A).
2. Slip the chain around the sprocket (B) behind the
clutch (C). Make sure the links fit between the
sprocket teeth (Fig. 4B).
3. Guide the drive links into the groove (D) and around
the end of the bar (Fig. 4B).
NOTE: The saw chain may droop slightly on the lower
part of bar. This is normal.
4. Install the clutch cover and tighten the 2 screws.
Make sure the chain does not slip off of the bar.
Install the 2 nuts hand tight and follow tension
adjustment instructions in Section SAW CHAIN
TENSION ADJUSTMENT.
NOTE: The guide bar retaining nuts are installed only
hand tight at this point because saw chain adjustment is
required. Follow instructions in Section SAW CHAIN
TENSION ADJUSTMENT.
Fig. 4A
• SAW CHAIN TENSION ADJUSTMENT
The correct tension of the saw chain is extremely impor-
tant. The correct tension should be checked before use
and during cutting operations.
Taking the time to make needed adjustments to the saw
chain will result in improved cutting performance and
prolonged chain life.
WARNING: Always wear heavy duty gloves
when handling saw chain or making saw
chain adjustments.
TO ADJUST SAW CHAIN:
1. Hold nose of guide bar up and turn adjustment screw
(D) CLOCKWISE to increase chain tension. Turning
screw COUNTERCLOCKWISE will decrease amount
of tension on chain. Ensure the chain fits snugly all
the way around the guide bar (Fig. 5).
2. After making adjustment, and while still holding nose
of bar in the uppermost position, tighten the bar
retaining nuts securely. Chain has proper tension
when it has a snug fit all around and can be pulled
C
around by gloved hand.
NOTE: If chain is difficult to rotate on guide bar or if it
binds, too much tension has been applied. This requires
minor adjustment as follows:
A. Loosen the 2 bar retaining nuts so they are finger
B
Fig. 3C
tight. Decrease tension by turning the bar
adjustment screw COUNTERCLOCKWISE slowly.
Move chain back and forth on bar. Continue to
F
adjust until chain rotates freely, but fits snugly.
Increase tension by turning bar adjustment screw
CLOCKWISE.
B. When saw chain has proper tension, hold nose of
bar in the uppermost position and tighten the 2 bar
G
Fig. 3E
retaining nuts securely.
5
GB
Fig. 4B
A
D
B
C