Bolens 116-312-000 User Manual
OWNER’S GUIDE
OUTDOOR POWER EQUIPMENT
for ail seasons
Spring
21"
REAR
DISCHARGE
1.00
ROTARY
MOWER
Model Number
116-312-000
Important:
Read Safety Rules and
Instructions Carefully
PRINTED IN U.S.A.
Thank you for purchasing
an American-built product.
FORM NO. 770-5220A
INDEX
Safe Operation Practices
Assembiy
Controls
Operation................................................................. 9
Adjustments
Lubrication
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Instructions given with this symbol are for personal
A
safety. Be £ ure to follow them.
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For one year from the date of orig nal retail purchase, MTD PRODUCTS INC will either
repair or replace, at its option, free c f charge, F.O.B. factory or authorized service firm, any
part or parts found to be defective in material or workmanship. Transportation charges for
the movement of any power equipm mt unit or attachment are the responsibility of the pur
chaser. Transportation charges for e ny parts submitted for replacement under this warran
ty must be paid by the purchaser un ess such return is requested by MTD PRODUCTS INC.
This warranty will not apply to any part which has become inoperative due to misuse, ex
cessive use, accident, neglect, imp oper maintenance, alterations, or unless the unit has
been operated and maintained in accordance with the instructions furnished. This warran
ty does not apply to the engine, motor, battery, battery chargeror component parts thereof.
Please refer to the applicable mam facturer’s warranty on these items.
LIMITED WARRANTY
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3
4
Maintenance............................................................12
Off-Season Storage.................................................13
Trouble Shooting Chart ...........................................15
Illustrated Parts........................................................16
Repair Parts List
Parts Information
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Back Cover
17
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This warranty will not apply where he unit has been used commercially.
Warranty service is available through your local authorized service dealer or distributor. If
you do not know the dealer or distrit utor in your area, please write to the Customer Service
Department of MTD.
The return of a complete unit will n ct be accepted by the factory unless prior written per
mission has been extended by MT[i.
This warranty gives you specific lejai rights. You may also have other rights which vary
from state to state.
V
WARNING
Ac
This unit is equipped with an internal combustion engine and should not be used on or near any unim
proved forest-covered, brush-covered or jrass-covered land unless the engine’s exhaust system is
equipped with a spark arrester meeting app licable 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 reqi ired by law (Section 4442 of the California Public Resources
Code). Other states may have similar laws, -ederal laws apply on federal lands. A spark arrester muffler is
available at your nearest engine authorizec service center.
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WARNING
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To reduce the potential for any injury, comply with the following safety instructions. Failure to comply with the instructions may result in personal injury.
SAFE OPERATION PRACTICES FOR WALK-BEHIND MOWERS
TRAINING
1. Read this owner’s manual carefully in its entirety
before attempting to assemble or operate this ma
chine. Be completely familiar with the controls and
the proper use of this machine before operating it.
Keep this manual in a safe place for future and
regular reference and for ordering replacement
parts.
2. Your rotary mower is a precision piece of power
equipment, not a plaything. Therefore, exercise ex
treme caution at all times.
3. Never allow children to operate a power mower.
Only persons well acquainted with these rules of
safe operation should be allowed to use your
mower.
4. No one should operate this unit while intoxicated or
while taking medication that impairs the senses or
reactions.
5. Keep the area of operation clear of all persons, par
ticularly small children and pets. Stop engine when
they are in the vicinity of your mower. Although the
area of operation should be completely cleared of
foreign objects, an object may have been over
looked and could be accidently thrown by the
mower in any direction and cause serious personal
^ injury to the operator or any others allowed in the
area.
PREPARATION
1. Thoroughly inspect the area where the equipment is
to be used. Remove all stones, sticks, wire, bones
and other foreign objects which could be picked up
and thrown by the mower in any direction and cause
serious personal injury to the operator or any others
allowed in the area.
2. Do not operate equipment when barefoot or wearing
open sandals. Always wear substantial footwear.
3. Do not wear loose fitting clothing that could get
caught on the mower.
4. Check the fuel before starting the engine. Gasoline
is an extremely flammable fuel. Do not fill the
gasoline tank indoors, while the engine is running,
or while the engine is still hot. Replace gasoline cap
securely and wipe off any spilled gasoline before
starting the engine as it may cause a fire or explo
sion.
5. Disengage the self-propelled mechanism or drive
clutch on units so equipped before starting the
engine.
6. The blade control handle is a safety device. Never
attempt to bypass its operation. Doing so makes the
safety device inoperative and may result in personal
injury through contact with the rotating blade. The
blade control handle must operate easily in both
directions.
7. Never attempt to make a wheel or cutting height adjustment while the engine is running.
8. Mow only in daylight or in good artificial light.
9. Never operate the equipment in wet grass. Always
be sure of your footing. A slip and fall can cause
serious personal injury. Keep a firm hold on the
handle and walk, never run.
10. Always wear safety glasses or eye shields during
operation or while performing an adjustment or
repair, to protect eyes from foreign objects that may
be thrown from the machine in any direction.
OPERATION
1. Do not change the engine governor settings or over
speed the engine. Excessive engine speeds are
dangerous.
2. Do not put hands or feet near or under rotating
parts. Keep clear of the discharge opening at ail
times as the rotating blade can cause injury.
3. Stop the blade when crossing gravel drives, walks or
roads.
4. After striking a foreign object, stop the engine, re
move the wire from the spark plug, and thoroughly
inspect the mower for any damage. Repair the dam
age before restarting and operating the mower.
5. If the equipment should start to vibrate abnormally,
stop the engine and check immediately for the
cause. Vibration is generally a warning of trouble.
6. Shut the engine off and wait until the blade comes
to a complete stop before removing the grass
catcher or unclogging the chute. The cutting blade
continues to rotate for a few seconds after the
engine is shut off. Never place any part of the body
in the blade area until you are sure the blade has
stopped rotating.
7. Before cleaning, repairing or inspecting, make cer
tain the blade and all moving parts have stopped.
Disconnect the spark plug wire, and keep the wire
away from the spark plug to prevent accidental
starting.
8. Do not run the engine indoors.
9. Mow across the face of slopes, never up-and-down.
Exercise extreme caution when changing direction
on slopes. Do not mow excessively steep slopes.
Always be sure of your footing. A slip and fall can
cause serious personal injury.
10. Always disconnect electric mowers (line operated)
before cleaning, repairing or adjusting.
11. Never operate mower without proper guards, plates
or other safety protective devices in place.
12. DO NOT OPERATE this mower with the chute door
open, unless the complete grass catcher is properly
mounted on the mower.
MAINTENANCE AND STORAGE
1. Check the blade and engine mounting bolts at fre
quent intervals for proper tightness.
2. Keep all nuts, bolts, and screws tight to be sure the
equipment is in safe working condition.
3. Never store the equipment with gasoline in the tank
inside of a building where fumes may reach an open
flame or spark. Allow the engine to cool before stor
ing in any enclosure.
4. To reduce fire hazard, keep the engine free of grass,
leaves, or excessive grease.
5. Check the grass catcher bag frequently for wear or
deterioration. For safety protection, replace only
with new bag meeting original equipment specifica
tions.
This unit is Shipped WITHOUT GAS
OLINE or OIL. After assembly, see
separate engine manuai for propei
fuei and engine oil recommenda
tions.
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FIGURE 1.
^ D—®@
NOTE
mrntfflEI
ASSEMBLY INSTRUCTIONS
• NOTE
Reference to right or left hand side
of the mower is observed from the
operating position.
Contents of hardware pack: (See figure 1)
A (1) Rope Guide Bolt
B (2) Hairpin Cotters
C (2) Lock Washers 5/16" I.D.
(2) Hex Nuts 5/16-18 Thread
E (1) Curved Head Carriage Bolt
F (2) Cable Ties
G (2) Cable Anchors
H (2) Plastic Plugs
I (1) Cable Clamp (Not Shown)
1. Remove lawn mower and loose parts from carton.
Make certain all parts and literature have been
removed from the carton before the carton is
discarded.
2. Extend the throttle control cable (attached to the
upper handle) and the brake cable (attached to the
engine) and place on the floor. Be careful not to
bend or kink control cables.
3. Attach the lower handle by placing the bottom
holes in the lower handle over the weld pins on the
handle mount brackets. Make certain the instruc
tion label on the lower handle can be read from
the operating position. Secure with hairpin cotters
— (B) in inner holes on weld pins. See figure 2.
FIGURE 3.
NOTE
There are two (2) holes in the handle
mount brackets. Place the hairpin
cotter in the inner hole for operation.
Outer hole is for storage.
NOTE
It may be necessary to bend the
ends of the lower handle inward
slightly to obtain a tight fit against
the handle mount brackets.
4. Place the upper handle in position over the lower
handle. The control housing must be on the left
hand side of the handle. Secure the left hand side
of upper handle using the curved head bolt (E),
lock washer (C) and hex nut (D) as shown in figure
■3.
• NOTE
The right hand side of the handle
will be secured with the rope guide
bolt. However, left handed operators
may assemble the rope guide bolt to
the left side of the handle for easier
starting.
Insert the rope guide bolt (A) through the right hand
-side of upper and lower handle. See figure 4.
Secure with took washer (C) and hex nut (D), finger
tight only.
Route the brake cable under the lower handle.
6.
Place the end of the brake cable into the upper
hole on the bottom of the control housing, and
through the slot in the side of the housing as shown
■ in figure 5. The angle of the flange on the plastic
fitting must be positioned downward as shown. Be
careful not to bend or kink the cable.
WARNING {
Ai
Brake cable must be assembled as
shown for proper blade brake opera
tion.
7. Snap the plastic fitting on the end of the cable in
to the control housing. Hook the “Z” end of the
brake cable into the hole in the blade control han-
— die. See figure 6.
8. The starter rope is wound around the starter han
dle. Maintain the tension on the rope as you un
wind it.
FIGURE 7.
Throttle
Control Lever
On Engine
FIGURE 8.
m CHOKE
n
q^I>SL0W
FIGURE 8A.
Remove This Screv/
Cable CabI i
Clamp Clamp (l)i
Screw
Throttle Remove Sci ew
Control Lever
On Engine
9. Slip the starter rope into the rope guide bolt as
------
shown in figure 7. If more slack is needed in the
starter rope, disconnect and ground the spark plug
wire. Depress the blade control handle and pull ad
ditional rope out from the engine.
10. Tighten the hex nut on the rope guide bolt
securely.
Steps 11 through 15 are for standard Briggs and
Stratton engines. If your unit is equipped with a
deluxe Briggs and Stratton engine (see figure 8A),
follow steps 11A through 15A.
Standard Engines:
11. Place the throttle control lever on the handle in
FAST position.
12
Route the throttle control cable under the lower
handle and inside the handle mount bracket. Hook
the “Z” end of the throttle control cable into the
outside hole in the control lever on the engine.
Using a 7/16" wrench, remove the screw on the
13.
engine shown in figure 8.
14.
Remove the screw on the cable clamp shown in
figure 8. Slip the control casing under the clamp.
Replace the screw, but do not tighten (cable must
still move freely beneath the clamp).
15. Push the throttle control lever on the engine to the
full open position (as far toward the outside of the
------
unit as it will go) as shown in figure 8. Tighten the
screw to secure the throttle control cable in this
position.
Deluxe Engines:
11 A. Move throttle control lever on handle forward until
it stops in FAST position (do not push all the way
forward to CHOKE position). See figure 8A.
12A. Route the throttle control cable under the lower
handle and inside the handle mount bracket.
Hook the “Z” end of the throttle control cable in
to the hole in the control lever on the engine.
13A. Using a 7/16" wrench, remove the screw on the
engine shown in figure 8A.
14A. Remove the screw on the cable clamp shown in
figure 8A. Slip the control casing under the
clamp. Replace the screw, but do not tighten
(cable must still move freely beneath the clamp).
15A. Slide the throttle control lever on the engine as
far toward the outside of the engine as it will go
easily (just until resistance is felt) as shown in
--------
figure 8A. (Do not force it into the extreme out
side position, which is the CHOKE position.)
Tighten the screw to secure the throttle control
cable in this position.
All Units:
16. Loosen the screw on the clamp on the side of the
engine. Secure the cable away from the muf
fler. Be careful not to bend or kink the cable.
Tighten the screw.
17. Secure cable casing to the front of engine with
cable clamp (I) provided in hardware pack and
screw removed from engine in step 13 (or 13A).
Do not overtighten.
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