12
5. Move choke lever to PARTIAL CHOKE “
” position
then pull starter rope 4 times. (Figure 6-2F)
6. Move the choke to RUN “
” position. Warm up
30 sec-
onds
in idle then depress trigger. (Figure 6-2G)
7. If engine fails to start, repeat steps 1 through 6.
NOTE:
If engine fails to start after repeated attempts, refer
to Troubleshooting section.
NOTE:
Always pull starter rope straight out. Pulling starter
at an angle will cause rope to rub against the eyelet. This
friction will cause the rope to fray and wear more quickly.
Always hold starter handle when rope retracts. Never allow
rope to snap back from extended position. This could cause
rope to snag or fray and also damage the starter assembly.
6-3. TO STOP ENGINE
1. Release throttle trigger. Let engine return to idle. Move
ignition switch (A) to the “ STOP
” position for stop-
ping engine. (Figure 6-3A).
6-4. WARM ENGINE START
1. Move ignition switch to the “RUN (I)” position.
2. Place choke in PARTIAL CHOKE “
” position (Figure
6-4A).
3. Grasp throttle handle firmly, depress safety trigger, and
squeeze throttle trigger to FULL position.
4. Pull starter rope briskly until engine starts, but no more
than 6 times. Keep throttle at FULL position until engine
runs smoothly. Move choke lever to 3 position.
5. If engine does not start, place choke lever in RUN “
”
position and pull starter rope 5 more times. If engine
still does not start it is probably flooded. Wait 5 minutes
and repeat procedure with choke lever in RUN “
”
position and throttle full open.
6-5. IDLING/CARBURETOR ADJUSTMENT
1. Occassionally, due to atmospheric conditions such as
altitude it might be necessary to make slight adjustment
to idle speed.
2. Insert phillips or flat screwdriver into access hole A (fig-
ure 6-5A). Turn 1/8 turn clockwise to increase idle
speed and 1/8 turn counterclockwise to decrease idle
speed.
6 - OPERATING INSTRUCTIONS
11
6 - OPERATING INSTRUCTIONS
6-1. SHOULDER HARNESS
WARNING
ALWAYS WEAR SHOULDER HARNESS
when operating
unit with a blade. Attach harness to trimmer after starting
unit and engine is running at IDLE. Turn ENGINE OFF
before disconnecting shoulder harness.
1. Put the harness on so the shoulder strap is over your
LEFT shoulder. (Figure 6-1A)
2. Attach the harness clip (A) to the ring (B) mounted on
the shaft. (Figure 6-1A and 6-1B)
3. Adjust length of shoulder strap so stringhead is parallel
to the ground as it hangs from the strap. A few practice
swings without starting engine should be made to
determine correct balance.
NOTE:
Detach the shoulder harness from the unit before
starting engine.
6-2. STARTING A COLD ENGINE (Put unit on
the ground do not depress trigger
before starting see fig. 6-2E)
NOTE:
To minimize load on engine during starting and
warm-up, trim excess cutter line to 5" (13cm) (Figure 6-2A).
1. Move on/off ignition switch to the “RUN (I) ” position.
(Figure 6-2B)
2. Your unit is designed with a 3 position choke: FULL
CHOKE “
”, PARTIAL CHOKE “
”, and RUN “
”.
Move choke lever to FULL CHOKE “
” position
(Figure 6-2C).
3. Prime the carburetor. Pump the primer bulb (A) 10
times (Figure 6-2D).
4.
Smooth pull starting requires much less effort than
units without smooth pull-Pull with a smooth steady
pull. Pull starter rope out a short way until resistance is
felt (approximately 4") (Figure 6-2E). A smooth rapid
pull is required for a strong spark. Pull starter rope
briskly 6 times.
6-1A
A
6-1B
B
6-2A
5" (13cm)
6-2B
6-2C
6-2D
6-2E
A
6-5A
A
6-2F
6-2G
6-3A
A
6-4A
Summary of Contents for MT3075
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