Pioneer 600 User manual

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FIGURE
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MUFFLER
CH IN OILER
RESERVOIR
GENER L INFORM TION
If you are a new owner, some of the tenus applied to Power Chain Saws may ne cl
explanation, see (figure 1).
Throughout the- pages following in this operator s Manual, you will find detailed
instruction on the care and maintenance of your chain saw. Adherence to these
instructions will give you better performance, lower maintenance costs and longer
Raw life.
Your Power Saw has received a factory run in, but the operator should treat th
Saw as any new equipment for a break in period. Let the motor idle to warm up.
Recheck all nuts for correct tension. The operator s initial care will payoff in
longer life.
The following instructions are IMPORTANT and will add to the life of your chain
and efficient operation.
1. Install chain properly, with recommended chain tension. (See figure 5.)
2. Run chain at low speed for almost 5 minutes, giving plenty of OIL durin
period.
Switch off the engine and readjust the chain tension.
Recheck tension often until the chain is fully broken in.
Keep your chain well lubricated during cutting, at all times.
If possible, leave chain in an oil bath overnight. This ensures internal lubri-
cation.
Keep your chain SHARP. A light touch up with the file will prevent the dam a .
caused to cutters and side links by operating with a dull chain.
Study your Chain Pocket Instructor and the information given in your Operators
Manual. Remember, chain maintenance pays off in both time and money.
This Model carries two sighting points for large timber; one on the Strut and th
second on the Starter Cover.

PREP RING YOUR CH JN S W FOR USE
It will be necessary to assemble the pivot grip, cutter bar and chain to the moto-r
unit and properly adjust the chain tension.
1. Remove the strut assembly and outer and inner guide plates from the motor unit
figure 3).
2. Secure the pivot grip to the motor unit figure 3).
3. Place the inner guide plate and cutter bar on the motor unit engaging them on the
two mounting studs.
4. Assemble the chain to the sprocket and cutter bar making sure that the cutting
teeth direction is correct figure 4).
5. Replace the outer guide plate and strut assembly, but do not tighten permanently.
The chain adjusting pin must engage into the cutter bar slot.
6. Tighten chain, using the adjusting screw figure 4). Then back off until the chain
can be pulled freely around the bar by hand figure 5). CAUTION - Use gloves
or cloth to protect your hands.
7. Secure the two hexagonal nuts attaching the strut assembly and cutter bar to the
motor unit. Lift bar tip slightly to insure correct seating.
FUEL ND LUBRIC TION
Lubrication of internal moving parts of your chain saw motor is solely supplied by oil
which is mixed with gasoline. Therefore it is very important to prepare your fuel
mixture properly. Mix one part of SAE: 40 motor oil to 16 parts of regular gasoline:
or use a ratio of 1 pint of oil to 2 gallons of regular gasoline. MIXING PRO-
CEDURE: Pour into a clean metal container half the amount of gasoline to be mixed,
and add all the required oil. Shake or stir until thoroughly mixed. Then add balance
of gasoline and shake or stir to insure mixing. DO NOT MIX DIRECTLY IN CHAIN
SAW FUEL TANK. Strain fuel mixture through a fine mesh screen when pouring into
fuel tank, to eliminate any water or foreign particles.
CH IN OILER
Lubrication of the cutting chain is essential to minimize pitch fouling, wear and fric-
tion power loss. This is done through the chain oiler figure 1) which is manually
controlled, drawing its oil supply from a separate reservoir located at the cutting end
of the motor unit. Good clean oil is a must. SAE 10 or 20 is recommended but
because of locality, season and the timber being cut the weight of oil is variable,
We recommend a penetrating oil with a tacky quality.
INNER GUIDE
PL TE

FIGURE
STARTING INSTRUCTIONS
1. Put fuel in the tank that is properly mixed as explained previously.
2. Fill the chain oiler reservoir. See CHAIN OILER.
3. To start the motor, place the chain saw ina convenient position where it will sit
squarely and firmly when you pull the starter cord.
4. Choke by moving the choke lever down.
5. Turn the ignition switch to an up position.
6. Take a firm hold on the pistol grip with the right hand, and open the throttle with
your index finger (figure 7).
7. Take the starter handle in your left hand and place the left foot firmly on the
starter foothold (figure 7).
8. Open the throttle and turn the motor over slowly once, then give starter firm
sharp pulls, engaging it slowly.
9. When the motor starts, ease off on the throttle and move the choke lever up, to
running position. If the motor is cold it may be necessary to choke the motor
slightly for several seconds to obtain a satisfactory idle. Run the motor just fast
enough to turn the chain and operate the oil pump lever until the chain is thorough-
ly lubricated.
10. Check your General Instruction page for important information on keeping your
chain sharp and correctly tensioned at all times. Readjustment of tension during
break-in period is a must.
For the first several hours of operation treat your chain saw with care to prevent
needless wear during the break-in period. Give it plenty of time to warm up before
starting to cut, but use full throttle when cutting. Don t race motor when cutting
small timber.

C RBURETOR DJUSTMENTS
All carburetors are tested and adjusted at the factory. Little readjustment, if any,
will be required.
1. Idle speed adjusting screw controls the idling speed only (figure 8). To adjust,
back the screw off approximately two turns, then turn slowly to the right until the
throttle arm just starts to move, then give an additional 1-1/2 tUl11Sto the right.
2. High speed adjusting screw controls fuel mixture when the throttle is open (figure
8). To adjust, shut off gently, then open 1-1/4 turns. This may vary slightly for
individual chain saws under full load.
3. Slow speed adjusting screw controls the fuel mixture at idling speeds (figure 8).
To adjust, shut off gently, then open 3/4 to one full turn. This may change slightly
according to the individual chain saw and operator.
Excessive smoking, lack of power, and excessive vibration indicates that the carbure-
tor fuel mixture adjustments aloe set too rich. No power, and stalls easily under load
indicates that carburetor fuel mixture adjustments are set too lean.
OPER TING INSTRUCTIONS
If you have not previously operated a chain saw cut a few stove lengths from a small
log to get the feel of the chain saw action. When starting a cut, don t race the motor
and jam the saw into the wood. Bring the motor up to full throttle, place the pivot
grip against the timber being cut, and start the cut easily.
Your chain saw is a direct drive type and because of its high speed cutting action,
dont exert pressure to force it through wood. A light, but firm touch will get more
wood cut with less physical effort. When coming to the end of a cut, be prepared to
release the throttle immediately after the cut is finished.
Be generous with the chain oil. Check the reserve supply frequently. In cutting
pitchy wood or in cold weather, thin the chain oil with kerosene. The kerosene helps
the oil flow more freely in cold weather and in pitchy wood it helps keep resin from
fouling the chain.
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PREVENTIVE M INTEN NCE
Preventive maintenance is the elimination of potential cause of troubles before they
occur. To realize the full value of investment and prevent unnecessary repair bills
together with costly shut-downs, make PREVENTIVE MAINTENANCE A MUST.
Check your chain saw daily and set up a system of regular inspections and tune-ups.
Your motor is equipped with an efficient air filter of pleated design. This incorporates
a self cleaning principle. When cleaning proves necessary release the thumb .screw
about two turns then tap the top plate lightly. This releases any dirt packed between
the pleats. Retension thumb screw.
WARNING Do not wash this type of air cleaner. Do not use air under pressure.
Replace any damaged filter element at once.
Clean off any dirt around the carburetor breather hole. If you are working the saw
hard, it is a good idea to check and clean the air filter and the breather hole twice
a day.
Periodic care and maintenance
1. CYLINDER AND HE AD FINS: At least once a week remove cooling shroud and
give cylinder head and fins a good cleaning (figure 10). Tighten head nuts if
required.
2. EXHAUST PORTS: Check for carbon deposits. Remove spark plug and locate the
piston at its lowest point. Remove excess carbon with blunt edged tool, taking care
not to burr or damage port area or cylinder sleeve (figure 14). Clean out carbon
particles.
3. MUFFLER: Check for carbon. Replace the gasket if required.
4. IGNITION: Check high tension wire for possible breaks or wear.

Periodic care and maintenance cont.)
5. SPARK PLUG: Check for carbon, fouling and cracks. Keep clean and adjust
spark plug gap to .025 inch.
6. MAGNETO: Do not inspect or adjust unless absolutely necessary. The quantity
of spark from the spark plug will indicate magneto condition. Breaker point gap
should be .020 inch. In event of removal all magneto parts must be replaced in
correct setting and location. It is recommended that if magneto service work is
required, the chain saw be taken to your local servicing dealer figure 12).
7. CARBURETOR: Do not screw adjustments in too tight. Remove the pump base
portion for inspection and cleaning figure 11). It is recommended that carburetor
overhaul should be performed by your servicing dealer.
8. CLUTCH: The clutch is automatic, designed to apply at a predetermined motor
speed. Do not slip clutch through overloading as it will wear out lining. Im-
mediately release the throttle if chain is pinched.
9. OUTTER BAR: Make sure the bar is clean at all times to assure sufficient chain
lubrication figure 13). Check the cutter bar for wear at regular intervals and
turn it over from time to time to make sure the wear is distributed evenly. As
wear takes place, a sharp edge is left on the extreme edge of the groove and this
should be removed with a file . . . Care must be exercised in servicing bar to
prevent damage to chain groove. Use Bar Gauge No. 426235.
FIGURE 11 FIGURE 12
e
BAR OIL VENT FIGURE 13
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SERVICE DI GNOSIS
TROUBLE PROBABLE CAUSE REMEDY
Motor fails
to start. Fuel tank empty.
Ignition switch off.
Motor not choked.
Carburetor,
Over choking.
Spark plug.
Magneto.
*Plugged or frost-covered pickup in fuel
tank.
*Plugged impulse hole in carburetor or
misaligned carburetor manifold gasket.
*Frozen gas line or ice in filter or car-
buretor
Fill with correct fuel mixture.
Turn on or check for short.
Move choke lever down.
See carburetor adjustments.
Unchoke, open throttle and pull starter 3 or 4 times. f
motor is continually flooding check for plugged carbure-
tor breather.
Remove plug, clean and adjust. Re-attach wire and hold
metal seat of plug against motor. Pull starter. A blue
spark should jump gap between electrodes.
Disconnect wire from spark plug. Hold so metal end is
inch from clean metal surface. (Away from gas tank.)
Pull starter. There should be a strong spark across the
gap. If no spark the trouble is breaker points, coil, condens-
er, shorted wire, 01 switch.
Remove and clean. Check for ice, water, and dirt in fuel
tank filter screen and water trap felt.
Remove and clean. Check for ice, water, and dirt in fuel
tank filter screen and water trap felt.
Remove and clean. De-ice additive used in prescribed
proportion will counteract this. (One teaspoon to a full
tank of fuel.)
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*Probable causes indicate conditions which may be experienced during cold weather operation.

SERVICE DIAGNOSIS CONT.)
TROUBLE PROBABLE CAUSE REMEDY
Motor cuts
out, leans
out or mis-
fires.
Motor lacks
power.
Short circuit in ignition system.
Partial stoppage in fuel. system.
Fouled, wet or damaged spark plug.
Magneto. Faulty breaker points, coil, con-
denser, ignition wire or connection.
Inlet control lever sticking on the inlet
control lever screw shaft.
Improper sequence of fuel pump diaphragm
and gasket.
Dirty 01 leaking carburetor filter.
Dirt in fuel lines or carburetor passages.
Air leak in fuel lines.
t Improper inlet lever setting.
Incorrect fuel mixture.
Carburetorout of adjustment.
Exhaust ports or muffler clogged.
Air Intake filter clogged.
Poor compression.
Check all wires and connections.
Clean out carefully and check earburetor.
Clean and adjust or replace.
Check.
Remove and clean control lever, or replace.
Fuel pump diaphragm must be next to fuel pump body.
Remove and clean. Properly secure filter to fuel pump body.
Check and clean.
Replace.
Adjust.
Drain tank, refill with correct mixture.
Adjust carburetor.
Clean.
Clean.
See your servicing dealer.
tInlet Needle Lever Adjustment: The correct lever setting is level with the face of the diaphragm chamber. Ad-
just short part of the lever to obtain correct setting. Do not jamb the needle into the seat.
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CONT.)
PROBABLE CAUSE
SERVICE DIAGNOSIS
REMEDY
TROUBLE
Motor over-
heats
Chain stalls
in cut.
Chain moves
when throttle
is closed.
Chain cuts
roughly or
digs in.
Chain oiler
stops pump-
ing.
Cylinder fins or air system clogged.
Incorrect fuel mixture.
Carburetor lean.
Loose cylinder head nuts.
Leaking cylinder head or base gaskets.
Clutch slipping.
Improper filing or jointing.
Cutter bar and chain pinched in log.
Idling speed too fast.
Top and front angles on cutters incorrectly
filed. Too much joint.
Dirt in pump assembly or discharge vent.
Clean.
Drain tank, refill with correct mixture.
Adjust.
Tighten.
Check .and replace if necessary.
Check linings, if worn replace.
Check filing and jointing instructions, or see your servicing
dealer.
Use wedge if necessary to open cut wider to free bar and
chain.
Adjust idle speed.
Check filing and jointing instructions, or see your servicing
dealer.
Remove and clean pump and feed line. Fill with clean oil.
SAE 10 or 20.)
NOTE: If- motor idling is erratic or races away and then drops, it may indicate the possibility of excess air en-
tering the crankcase. i: this condition exists, the motor would continue to idle with the idle stop screw backed
completely off. Check the following points: 1.) Cocked throttle shutter. 2,) Leaking carburetor gasket. 3.)
Loose carburetor nuts. 4.) Leaking crankshaft seals. 5.) Improper carburetor adjustments.
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