Poulan 1950 Chainsaw User Manual


 
9
FUELING & LUBRICATION
WARNING:
Remove fuel cap slowly
when refueling.
FUELING ENGINE
This engine is certified to operate on un-
leaded gasoline. Before operation, gasoline
must be mixed with a good quality synthetic
2-cycle air-cooled engine oil designed to be
mixed at a ratio of 40:1. Poulan/Weed Eater
brand synthetic oil is recommended. Mix
gasoline and oil at a ratio of 40:1. A 40:1 ratio
is obtained by mixing 3.2 ounces of oil with 1
gallon of unleaded gasoline. Included with
this saw is a 3.2 ounce container of oil. Pour
the entire contents of this container into 1
gallon of gasoline to achieve the proper fuel
mixture.
DO N O T U SE automotive oil or boat oil. These
oils will cause engine damage. When mixing
fuel, follow instructions printed on container.
Once oil is added to gasoline, shake container
momentarily to assure that the fuel is thorough-
ly mixed. Always read and follow the safety
rules relating to fuel before fueling y our unit.
BAR AND CHAIN LUBRICATION
The bar and chain require continuous lubri-
cation. Lubrication is provided by the auto-
matic oiler system when the oil tank is kept
filled. Lack of oil will quickly ruin the bar and
chain. Too little o il will cause overheating
shown by smoke coming from the chain and/
or discoloration of the bar.
In freezing weather oil will thicken, making it
necessary to thin bar and chain oil with a
small amount (5 to 10%) of #1 Diesel Fuel or
kerosene. Bar and chain oil must be free
flowing for the oil system to pump enough oil
for adequate lubrication.
Genuine Poulan
R
bar andchain oil isrecom-
mended to protect your unit against exces-
sive wear from heat and friction. Poulan
R
oil resists high temperature thinning. If Pou-
lan
R
bar and chain oil is not available, use a
good grade SAE 30 oil.
S
Never use waste oil for bar and chain lubri-
cation.
S
Always stop the engine before removing
the oil cap.
IMPORTANT
Experience indicates that alcohol--blended
fuels (called gasohol or using ethanol or
methanol) can attract moisture which leads
to separation and formation of acids during
storage. Acidic gas can damage the fuel
system of an engine while in storage. To
avoid engine problems, the fuel system
should be emptied before storage for 30
days or longer. Drain the gas tank, start the
engine and let it run unt il the fuel lines and
carburetor are empty. Use fresh fuel next
season. See STORAGE section for addi-
tional information.
STARTING
WARNING:
The chain must not
move when the engine runs at idle speed. If
the chain moves at i dle speed refer to CAR-
BURETOR ADJUSTMENT within this
manual. Avoid contact with the muffler. A hot
muffler can cause serious burns.
To stop the engine move the ON/STOP
switch to the STOP position.
To start the engine hold the saw firmly on
the ground as illustrated. Make sure the
chain is free to turn without contacting any
object.
Hold saw firmly while pulling starter rope
.
Use onl y 15”--18” of rope per pull.
Left hand
on front
handle
Right foot through rear handle
Starter rope handle
IMPORTANT POINTS T O REMEMBER
When pulling the starter rope, do not use the
full extent of the rope as this can cause the
rope to break. Do not let starter rope snap
back. Hold the handle and let the rope re-
wind slowly.
NOTE:
Do not attempt to cut material with
the fast idle lock button in the locked position.
STARTING A COLD ENGINE (or
warm engine after running out of
fuel)
ON/STOP SWITCH
ON
STOP
(SIDE VIEW)
1. Move ON/STOP switch to the ON posi-
tion.
2. Pull choke knob out to the full extent.
3. Slowly press primer bulb 6 times.
4. Squeeze and hold throttle trigger. With
thumb press fast idle lock down; then re-
lease throttle trigger.
Fast idle lock button
Choke knob
Throttle
trigger
Throttle
lock--out
5. Sharply pull the starter rope handle 5
times with your right hand. Then, pro-
ceed to the nex t step.