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HS81A CUT-OFF SAW — OPERATION & PARTS MANUAL — REV. #2 (07/26/10) — PAGE 19
The CLOSED position of the choke lever
enriches the fuel mixture for starting a COLD
engine. The OPEN position provides the
correct fuel mixture for normal operation after
starting, and for restarting a warm engine.
HS81A CUT-OFF SAW — INITIAL START-UP/OPERATION
DO NOT attempt to operate the saw until
the Safety, General Information and
Inspection sections of this manual have
been read and thoroughly understood.
Depending on engine manufacturer,
operating steps may vary. See engine
manufactures operating manual.
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
NEVER operate the saw in a
confined area or enclosed
area structure that does not
provide ample
free flow of air
.
ALWAYS wear approved eye and hearing
protection before operating the saw.
NEVER place hands or feet inside the belt
guard or blade guard while the engine is
running. ALWAYS shut the engine down
before performing any kind of maintenance
service on the saw.
INITIAL START-UP
Fuel Check
Motor fuels are highly flammable and can be
dangerous if mishandled. DO NOT smoke
while refueling. DO NOT attempt to refuel the
saw if the engine is
hot!
or
running
.
Explosive Fuel
1. Remove the fuel cap located on the side of the saw.
2. Visually inspect to see if fuel level is low. If fuel is low,
replenish with fuel oil mixture as shown in Figure 13.
3. When refueling, be sure to use a strainer for filtration. DO
NOT top-off fuel. Wipe up any spilled fuel.
Starting
1. Place the engine ON/OFF switch in the ON position
2. Using your thumb, press down on the throttle lock lever,
while squeezing the throttle trigger. This will lock the throttle
in the
half-throttle
position.
3. Pull the choke lever all the way out to the CLOSED position.
4. Pull the
decompression button
outward.
5. Place the saw on level ground. Make sure the saw blade is
free to rotate and will not come into contact with any foreign
objects.
6. Hold the front handle firmly with the left hand and put your
right foot onto the base of the rear handle.
NOTE
This saw uses a 2-stroke engine which
requires a mixture of no less than 90
octane
premium
unleaded gasoline and smoke
free 2-stroke motor oil. See Figure 13.
Figure 13. Fuel to Oil Mixture
NOTE
DO NOT
use automotive motor oil when
adding oil to fuel. For optimum performance
and proper lubrication, the manufacture
recommends that the fuel to oil ratio mixture
be 25:1
NOTE
A single bottle ( 2.6 fl. oz) of smokeless 2-stroke motor oil
cannot
be
purchased separately
. However you can purchase from
Multiquip a case (P/N 00325) of 48 individual bottles or a 6 pack
(P/N 003256PAK).
UNLEADED
FUEL
2-STROKE
MOTOR OIL
2.6 FL.OZ
90 OCTANE
PREMIUM
UNLEADED
GASOLINE
1 (3.78)
2 (7.57)
5 (18.92)
5.2 (154)
10.4 (308)
26 (769)
2
4
10
UNLEADED GAS
GAL. (LITERS)
2-STROKE OIL
OZ. (ML)
NUMBER OF
BOTTLES
FUEL TO OIL
MIXTURE RATIO
25:1 (4%)