Bolens 390 User Manual
owiers GUIDE
• ASSEMBLY • OPERATION • MAINTENANCE •
Made
Made
in
AMERICA
WARNING: This unit is equipped with an internal combustion engine and should not be used
on or near any unimproved forest-covered, brush-covered or grass-covered land unless the
engine’s exhaust system is equipped with a spark arrester meeting applicable local or state
laws (if any). If a spark arrester is used, it should be maintained in effective working order by
the operator.
In the State of California the above is required by law (Section 4442 of the California Public
Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A
spark arrester for the muffler is available through your nearest engine authorized service
dealer or contact the service department, RO. Box 368022, Cleveland, Ohio 44136-9722.
FORM NO. 770-8576M
A
IMPORTANT : SAFE OPERATION PRACTICES
THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF NOT FOLLOWED, COULD ENDANGER THE PERSONAL
SAFETY AND/OR PROPERTY OF YOURSELF AND OTHERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL BEFORE
AHEMPTING TO OPERATE YOUR TILLER. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
WHEN YOU SEE THIS SYMBOL—
^HEED ITS WARNING.
A
DANGER: Your tiller was bi ilt to be operated according to the rules for safe operation in this manual. As with
A
DANGER'
univucn. cgp3|,|g qi g„, )utating hands and feet. Failure to observe the following safety instructions could
_______ __ __
result in serious injury or death.
equipmt nt, careiessness or error on the part of the operator can result in serious injury,
___________ __ __ __ _____________ __ __ _____________ __ __ ______
I. GENERAL OPERATION
1. Read this owner’s guide carefully in its entirety bet ore attempt
ing to assemble this machine. Read, understand, £ nd tollow all
instructions on the machine and in the manual(s) tefore opera
tion. Be completely familiar with the controls anil the proper
use of the machine before operating it. Keep this manual in a
safe place for future and regular reference and ’or ordering
replacement parts.
2. Your tiller is a powerful tool, not a plaything. The'etore, exer
cise extreme caution at all times. Your unit has been designed
to perform one job: to till soil. Do not use it for ar y other pur
pose.
3. Never allow children under age 14 to operate the unit. Children
14 years and older should only operate the unit under close
parental supervision. Only responsible individuuls who are
familiar with these rules of safe operation should be allowed to
use your unit.
4. Do not operate tiller while under the influence o’ alcohol or
drugs.
5. Keep the area of operation clear of all persons, particularly
small children and pets. Stop the engine when thny are in the
vicinity of your tiller.
6. Wear sturdy, rough-soled work shoes and close 1 tting slacks
and shirt. Shirt and slacks that cover the arms aid legs and
steel-toed shoes are recommended. Do not wear loose fitting
clothes or jewelry and secure hair so it is abo/e shoulder
length. They can be caught in moving parts. Nevir operate a
unit in bare feet, sandals or sneakers.
7. Operate tiller only in daylight or good artificial light.
8. Do not start tiller unless the shift lever (it providi d) is in the
neutral (N) position.
9. Do not allow anyone to stand or walk in front o tiller when
starting or running engine.
10. Do not place feet or hands on or near the tines wher starting the
engine or while the engine is running.
II. Never attempt to make depth bar, tine width, cabk, handle, or
wheel adjustments while the engine is running.
12. Do not leave the tiller unattended with the engine ruining.
13. Before attempting to remove rocks, bricks and o her objects
from tines, stop the engine and be sure the tines hive stopped
completely. Disconnect the spark plug wire and n ove it away
from the spark plug.
14. If your machine should start making an unusual no se or vibra
tion, immediately stop the engine and allow the machine to
come to a complete stop. Disconnect the spark pUg wire and
move it away from the spark plug. Take the followii g steps;
• Inspect for damage.
• Repair or replace any damaged parts.
• Check for any loose parts and tighten to assuri continued
safe operation.
15. Muffler and engine become hot and can cause a b irn. Do not
touch.
16. Keep all shields, guards and safety devices in place and operat
ing properly.
17. Use caution when tilling near fences, buildings and under
ground utilities. Rotating tines can cause damage or injury.
18. Do not operate engine if air cleaner or cover over carburetor airintake is removed, except for adjustment. Removal of such
parts could create a fire hazard.
19. Only use accessories approved for this machine by the manu
facturer. Read, understand, and follow all instructions provided
with the approved accessory.
20. If situations occur which are not covered by this manual, use
care and good judgment. Contact your dealer tor assistance.
II. CHILDREN
> Tragic accidents can occur if the operator is not alert to the presence
of small children. Children are often attracted to the tilling activity.
Never assume that children will remain where you last saw them.
1. Keep children out of the work area and under the watchful eye
of a responsible adult other than the operator.
2. Be alert and turn the unit off if a child enters the area.
3. Never allow children under the age of 14 to operate the tiller.
III. SERVICE
i 1. Use extreme care in handling gasoline and other fuels. They are
extremely flammable and the vapors are explosive.
a. Store fuel and oil in approved containers, away from heat
and open flame, and out of the reach of children. Check and
add fuel before starting the engine. Never remove gas cap or
add fuel while the engine is running. Allow engine to cool at
least two minutes before refueling.
b. Replace gasoline cap securely and wipe off any spilled gaso
line before starting the engine as it may cause a fire or explo
sion.
c. Extinguish all cigarettes, cigars, pipes and other sources of
ignition.
d. Never refuel unit indoors because flammable vapors will
accumulate in the area.
e. Never store the machine or fuel container inside where there
is an open flame or spark such as a gas hot water heater,
space heater, clothes dryer or furnace.
2. Never run your machine in an enclosed area as the exhaust
from the engine contains carbon monoxide, which is a odorless,
tasteless and deadly poisonous gas.
3. To reduce fire hazard, keep engine and muffler free of leaves,
grass, and other debris build-up. Clean up fuel and oil spillage.
Allow unit to cool at least 5 minutes before storing.
4. Before cleaning, repairing, or inspecting, make certain the tines
and all moving parts have stopped. Disconnect the spark plug
wire and keep wire away from spark plug to prevent accidental
starting. Do not use flammable solutions to clean air filter.
5. Keep all nuts, bolts, and screws tight to be sure the equipment
is in safe working condition.
6. Nevertamper with safety devices. Check their proper operation
reguiarly.
7. Do not alter or tamper with the engine’s governor setting. The
governor controls the maximum safe operating speed of the
engine. Over-speeding the engine is dangerous and will cause
damage to the engine and to other moving parts of the machine.
OWNER’S
MANUAL
SAFETY LABEL
WARNING — YOUR RESPONSIBILITY
A
Restrict the use of this power machine to persons who read,
understand and follow the warnings and instructions in this
manual and on the machine.
ASSEMBLY INSTRUCTIONS
IMPORTANT: This unit is shipped WITHOUT GASO
LINE or OIL. After assembly, see separate engine
manual for proper fuel and engine oil recommen
dations.
NOTE: Left and right is determined from the i operator's
position, standing behind the tiller.
TOOLS REQUIRED FOR ASSEMBLY
(1)-1/2" Wrench or Socket*
(l)-Pair of Pliers
(1)-3/8" Wrench*
*An adjustable wrench may be used.
This owner's guide covers two différer t model
tillers. Model 340 has forward tine drive only.
Model 390 has both forward and reverse ti ie drive.
Follow only the instructions which pertain to your
model tiller. See the model plate on your tiller for
the correct model number.
REMOVING UNIT FROM CARTON
1. Remove staples, break glue on top flaps, or cut
tape at carton end and peel along top fla ) to open
carton.
2. Remove all loose parts included with unil.
3. Cut along dotted lines and lay carton dovm flat.
4. Remove packing material.
5. Roll or slide unit out of carton. Check carton
thoroughly for loose parts.
6. Extend control cable(s) to the rear of the tiller and
lay them on the floor. Be careful not to bend or
kink control cable(s).
All hardware required for assembly has been placed in
position on the tiller.
AHACHING THE HANDLE ASSEMBLY
1. Remove the hex bolt and cupped washer from the
top right side of the frame halves. Hold the cable
guide bracket on the left side of the frame as it will
fall when the bolt is removed. (See Figure 2)
2. Insert the handle assembly between the two
frame halves. Insert the hex bolt just removed
through the frame halves, handle assembly, and
into the cable guide bracket (notch in cable guide
bracket goes over the flange on the frame).
Tighten securely.
3. Tighten the shoulder bolt on the frame, just below
the end of the handle.
4. Loosen the hand knob which secures the handle
brace to the handle assembly.
5. Remove the hex lock nut from on top of the
engine, just behind the spark plug. Attach the
curved end of the handle brace to the top of the
engine, using hex lock nut just removed. Tighten
securely. (See Figure 2)
6. Select one of the three handle height positions
(three notches in welded bracket), and tighten the
hand knob to secure the handle in desired posi
tion. Make certain carriage bolt is seated
securely into one of the three positions provided.
AHACHING THE TAILPIECE AND DEPTH STAKE
Remove the two self-tapping screws which a'e on the
front of the tailpiece. Slide the tailpiece into the frame,
with the lower hole in the tailpiece toward he front.
Secure with screws just removed. (See Figur: 1)
AHACHING THE CLUTCH CONTROL CABLE(S)
FORWARD CABLE
Attach the end of the forward cable to the bracket
underneath the handle assembly as follows. (On
model 390, the forward clutch cable is the cable which
Is attached closer to the rear of the tiller.)
1. Loosen the hex nut on the threaded rod near the
end of the cable, and move it up the rod as far as it
will go.
2. Unthread the rod from the rest of the cable. Hook
the “Z” end of the rod into the bracket underneath
the handle assembly from the right hand side.
(See Figure 3)
3. Thread the rod back into the cable until the cable
is straight. Do not tighten it enough to put any ten
sion on the spring.
4. Thread the hex nut down against the end of cable.
Use a pair of pliers and a wrench to lock the nut
against the rod.
NOTE: Do not overtighten control cable. Too much
tension may cause it to break when engaged.
Figure 3. - Model 340
Reverse Tine
‘Z” End
REVERSE CABLE (Model 390 Only)
The reverse clutch cable is the cable which is attached
closer to the front of the tiller. Attach the end of the
reverse cable to the reverse tine drive clutch lever,
above the handle assembly, in the same manner as
you attached the forward cable. (See Figure 4)
FINAL CLUTCH ADJUSTMENT
To check the clutch cable adjustment, proceed as
follows.
1. Disconnect the spark plug wire and move it away
from the spark plug to prevent accidental starting.
2. Engage and release the tine engagement handle,
then the reverse tine engagement lever (model
390 only). If an excessive noise is heard when
releasing either the tine drive clutch handle or
lever, the cable may be too loose. Adjust either the
forward or reverse clutch cable by loosening the
hex nut, threading the rod into the cable one or
two turns, then retightening the nut.
3. With tine engagement handle in neutral (released)
as shown in figure 5, pull the starter rope several
times. The tines should not turn. If they turn for
ward, loosen the hex nut on the forward cable
(underneath the handle assembly). If they turn
toward the rear (model 390 only), loosen the hex
nut on the reverse cable (above the handle
assembly). Unthread the rod from the cable 2 or 3
turns. Retighten the hex nut, and check again for
correct adjustment.
CONTROLS
THROHLE CONTROL
The throttle control lever is located on the engine. It
controls the engine speed and stops the engine. (See
Figure 6)
Model 340
Tine
Engagement Handle
Figure 5.
Choke
Throttle Control
Figure 6.
Reverse Tine
Engagement Handle
Model 390
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