8
OPERATING INSTRUCTIONS
Experience is very important when running the
750
saw. A
skilled worker is highly recommended. Always do an inspec-
tion of the saw before starting the engine. Check the fuel (C)
and oil level (A) per the enclosed engine manual. SAE 10W/30
oil and unleaded gasoline with an 87 or higher octane should
be used. The hydrostatic transmission use Mobil DTE 26 hy-
draulic oil or equivalent (20W with viscosity of 68).
Observe
all safety regulations for the safe handling of fuel
.
Always
check the engine oil with the saw turned off, completely
lowered and the engine level!
Check that all controls are in
good working order. Check for loose bolts or nuts. Check for
fuel or oil leaks.
WARNING
Do not leave the saw unattended while the engine
is running! Always secure the saw from movement
while unattended.
Insure all guards are secure, undamaged and properly in-
stalled.
To start the engine, turn the fuel valve (E) on by the carburetor
on the side of the engine. Raise the saw by pushing down on
the handle with both hands to the full locked position. Turn the
engine kill switch (J) to the “ON” or “1” position. Pull the engine
throttle control (P) 1/3 of the way. Close the engine choke lever
(D). The closed choke position enriches the fuel mixture for
starting a cold engine. The open choke position provides the
correct fuel mixture for operation after the engine starts and for
restarting a warm engine. Start the engine by pulling the rope
handle (F) on the side of the engine. After the engine starts,
slowly open the choke lever (D). Allow the engine to warm for
a few minutes.
WARNING
Do not operate saw if there is a fuel leak!
WARNING
Do not operate the saw unless all guards, safety
equipment and the engine kill switch are in place and
operational!
Always clean the blade block assembly thoroughly before stor-
ing the saw. Always close fuel valve before transporting.
Handle bar
Blade release lever
Blade block
Front guide wheel
Check the air filter (B) and clean or replace if necessary.
Check for proper specification of blade and that the skid plate
operates properly. Check that the blade and skid plate are in
good condition. Make sure the work site is clean, well lit and
hazard free.
WARNING
ASPHYXIATION HAZARD
Running an engine in a confined or badly ventilated
area can result in injury or death due to asphyxiation
or carbon monoxide poisoning.
WARNING
Before each use, carefully inspect the
750
for any
damage to any of its parts and components. Pay
careful attention to any leakage of gasoline or oil.
Under no circumstance should the
750
or any of its
attachments be operated if you find damage or are
suspicious that something appears to be damaged.
Open the engine throttle lever to full open position for maxi-
mum engine speed by pulling the throttle knob (P) at the han-
dle. Lower the front guide to the full down position by pushing
the control handle (N) on the right forward.
Pulling the handle back slows the forward speed. Pulling the
handle to the full back position stops the saw. Keep the front
guide wheel on the cut line to insure straight cuts. Make small
adjustments by applying side pressure on the handle to keep
the saw straight.
Increase the forward speed if the saw is pulling left. Decrease
the forward speed if the saw is pulling right.
Do not force the
saw
. When approaching a wall, raise the front guide and use
the triangle guide at the back of the blade block to cut the last
few feet.
Line up the saw with the cut line using the front guide wheel
and the triangle pointer on the back of the blade block. Pull
the control lever (M) on the left back towards you to a full stop
position.
Push down on the saw handle and pull the blade release lever
(O) to lower the blade in the concrete slowly. Move the saw
forward by slowly pushing the control lever (M) on the left for-
ward until the desired cutting speed is reached.
Move the saw at about half speed for the first 100 feet to allow
the blade to develop good diamond exposure or open up and
promote blade life. Increase the forward speed of the saw until
the blade and the engine are working at maximum efficiency.
Do not hit the blade block assembly against any object
.
Damage may result. Slow the forward speed by pulling the
control handle lever back until the saw stops. Push down on
the back of the handle bar to raise the saw out of the cut to the
full and locked position.
The self propel function of the saw will not operate with the unit
raised. Move the engine throttle lever to the full closed posi-
tion. Turn the engine kill switch to the “OFF” or “0” position.
