FUEL
AND LUBRICATION
FUEL
Use
only regular grade leaded gasoline. Do not use highly
leaded,
unleaded or low lead gasolines. Chain saw fuel is a
mixture of gasoline and lubricating oil. The correct ratio of
gasoline to oil is very
important.
Follow the ratios in the
Fuel
Mixture
Table.
McCulloch 40:1 Two-Cycle Custom Lubricant
is
recommended. If not available, use a
good
grade
SAE
40
two-cycle oil at a ratio of 20 to 1.
MIXING
FUEL
Mix fuel in a container equipped
with
a flexible spout and
strainer.
Pour half of the gasoline and all of the oil
into
the
container.
Shake
the container vigorously! Add the rest of the
gasoline and
shake
container vigorously again. Thoroughly
mixed fuel makes your saw run
better.
Use the sight gauge
through
the fan housing for determining your fuel supply.
CAUTION:
Fuel
additives or special starting fluids should not
be used because
seals
and other rubber composition parts
may
be damaged.
FUEL
MIXTURE
TABLE
Gasoline
Mixing
Procedure
McCulloch
40:1 Ratio
Custom
Lubricant
h
U.S.
Gal. 1.6
oz.
48 ml
(cc)
1
U.S.
Gal. 3.2 oz. 95 ml
(cc)
5
U.S. Gal.
16.0
oz.
475
ml
(cc)
1
Liter
0.9 oz.
25 ml
(cc)
5 Liter
4.3 oz.
125 ml
(cc)
20 Liter
17.0 oz. 500
ml
(cc)
1
Imp. Gal.
4.3 oz.
125
ml (cc)
2
Imp. Gal.
8.6 oz. 250
ml
(cc)
5
Imp.
Gal.
21.4
oz.
625
ml
(cc)
40 parts gasoline to
1
part lubricant
1
ml = 1cc
SAE
40 Two-Cycle Oil
20:1 Ratio
3.2 oz.
95 ml
(cc)
6.4 oz.
190 ml
(cc)
32.0 oz.
950 ml
(cc)
1.7 oz.
50 ml
(cc)
8.5 oz.
250 ml
(cc)
34.0 oz. 1000
ml
(cc)
8.6 oz.
250 ml
(cc)
17.1 oz.
500 ml
(cc
42.8
oz.1250
ml (cc
20 parts gasoline to
1
part lubricant
To
install
spikes:
1.
Remove the CHAIN
BRAKE
retaining nuts. Then remove
the CHAIN
BRAKE.
©
2.
With
the largest
tooth
at the
bottom,
fasten one spike to
the oil tank
with
two of the
screws
provided.®
3.
Insert the two nuts
into
their holes in the CHAIN
BRAKE
housing
with
the locking tabs on the
outside.®
4.
Again,
with
the largest
tooth
at the
bottom,
fasten the
other spike
onto
the CHAIN
BRAKE
housing using the
remaining two
screws.®
CHAIN AND BAR LUBRICATION
Always
refill
the chain oil tank each
time
the fuel tank is
refilled. We recommend using McCulloch
Chain,
Bar and
Sprocket
Oil, which contains additives to reduce
friction
and
wear
and to
assist
in the prevention of
pitch
formation
on the
bar
and chain. If McCulloch
Chain,
Bar and Sprocket Oil is
not available, use
SAE
30 non-additive
motor
oil at tempera-
tures
above
40°F
(5°C)
and SAE 10 non-additive
motor
oil,
at lower temperatures.
INSTALLATION
INSTRUCTIONS
SPIKE
INSTALLATION (PM 650)
Two
spikes are included in the owners kit for the PM 650. The
spikes,
acting as wood grippers and fulcrum points, aid in
cutting
control. ®
7
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