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Operator’s Manual
Triple Rear Bagger
™
For FastAttach Compatible Garden Tractors
Model
OEM-190-821 (for 46-inch decks)
MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722
PRINTED IN U.S.A.
FORM NO. 770-10207B
(8/98)
SECTION 3: IMPORTANT SAFE OPERATION PRACTICES
WARNING: 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 ATTEMPTING TO OPERATE YOUR LAWN MOWER. FAILURE TO COMPLY WITH
THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. WHEN YOU SEE THIS SYMBOL,
HEED ITS WARNING.
WARNING:
The Engine Exhaust from this product contains chemicals known to
the State of California to cause cancer, birth defects or other reproductive harm.
DANGER: Your lawn mower was built to be operated according to the rules for safe operation in
this manual. As with any type of power equipment, carelessness or error on the part of the operator
can result in serious injury. This lawn mower is capable of amputating hands and feet and throwing
objects. Failure to observe the following safety instructions could result in serious injury or death.
1. GENERAL OPERATION
• Read, understand, and follow all instructions in the
• Never leave a running machine unattended. Always
turn off blade(s), place transmission in neutral, set
park brake, stop engine and remove key before
dismounting.
operator’s manual and on the machine before
starting. Keep this manual in a safe place for future
and regular reference and for ordering replacement
parts.
• Turn off blade(s) when not mowing.
• Only allow responsible individuals familiar with the
instructions to operate the machine. Know controls
and how to stop the machine quickly.
• Stop engine and wait until blade(s) comes to a
complete stop before (a) removing grass catcher or
unclogging chute, or (b) making any repairs,
adjusting or removing any grass or debris.
• Do not put hands or feet under cutting deck or near
rotating parts.
• Mow only in daylight or good artificial light.
• Clear the area of objects such as rocks, toys, wire,
etc., which could be picked up and thrown by the
blade. A small object may have been overlooked
and could be accidentally thrown by the mower in
any direction and cause injury to you or a
bystander. To help avoid a thrown objects injury,
keep children, bystanders and helpers at least 75
feet from the mower while it is in operation. Always
wear safety glasses or safety goggles during
operation or while performing an adjustment or
repair, to protect eyes from foreign objects. Stop
the blade(s) when crossing gravel drives, walks or
roads.
• Do not operate the machine while under the
influence of alcohol or drugs.
• Watch for traffic when operating near or crossing
roadways.
• Use extra care when loading or unloading the
machine into a trailer or truck. This unit should not
be driven up or down a ramp onto a trailer or truck
under power, because the unit could tip over,
causing serious personal injury. The unit must be
pushed manually on a ramp to load or unload
properly.
• Never make a cutting height adjustment while
engine is running if operator must dismount to do
so.
• Be sure the area is clear of other people before
mowing. Stop machine if anyone enters the area.
• Never carry passengers.
• Wear sturdy, rough-soled work shoes and close-
fitting slacks and shirts. Do not wear loose fitting
clothes or jewelry. They can be caught in moving
parts. Never operate a unit in bare feet, sandals, or
sneakers.
• Disengage blade(s) before shifting into reverse and
backing up. Always look down and behind before
and while backing.
• Be aware of the mower and attachment discharge
direction and do not point it at anyone. Do not
operate the mower without either the entire grass
catcher or the chute guard in place.
• Check overhead clearance carefully before driving
under power lines, wires, bridges or low hanging
tree branches, before entering or leaving buildings,
or in any other situation where the operator may be
struck or pulled from the unit, which could result in
serious injury.
• Slow down before turning. Operate the machine
smoothly. Avoid erratic operation and excessive
speed.
3
• Disengage all attachment clutches, thoroughly
depress the brake pedal, and shift into neutral
before attempting to start engine.
DO NOT:
• Do not turn on slopes unless necessary; then, turn
slowly and gradually downhill, if possible.
• Your mower is designed to cut normal residential
grass of a height no more than 10". Do not attempt
to mow through unusually tall, dry grass (e.g.,
pasture) or piles of dry leaves. Debris may build up
on the mower deck or contact the engine exhaust
presenting a potential fire hazard.
• Do not mow near drop-offs, ditches or
embankments. The mower could suddenly turn
over if a wheel is over the edge of a cliff or ditch, or
if an edge caves in.
• Do not mow on wet grass. Reduced traction could
cause sliding.
• Do not try to stabilize the machine by putting your
foot on the ground.
2. SLOPE OPERATION
Slopes are a major factor related to loss of control and tip-
over accidents which can result in severe injury or death.
All slopes require extra caution. If you cannot back up the
slope or if you feel uneasy on it, do not mow it.
For your safety, use the slope gauge included as part of
your tractor’s Operator’s Manual to measure slopes before
operating this unit on a sloped or hilly area. If the slope is
greater than 15° as shown on the slope gauge, do not
operate this unit on that area or serious injury could result.
• Do not use grass catcher on steep slopes.
3. CHILDREN
Tragic accidents can occur if the operator is not alert to the
presence of children. Children are often attracted to the
machine and the mowing activity. Never assume that chil-
dren will remain where you last saw them.
• Keep children out of the mowing area and in
watchful care of an adult other than the operator.
DO:
• Be alert and turn machine off if children enter the
area.
• Mow up and down slopes, not across.
• Remove obstacles such as rocks, limbs, etc.
• Before and when backing, look behind and down
for small children.
• Watch for holes, ruts or bumps. Uneven terrain
could overturn the machine. Tall grass can hide
obstacles.
• Never carry children, even with the blades off. They
may fall off and be seriously injured or interfere with
the safe machine operation.
• Use slow speed. Choose a low enough gear so that
you will not have to stop or shift while on the slope.
Always keep machine in gear when going down
slopes to take advantage of engine braking action.
• Never allow children under 14 years old to operate
the machine. Children 14 years and over should
only operate machine under close parental
supervision and proper instruction.
• Follow the manufacturer’s recommendations for
wheel weights or counterweights to improve
stability.
• Use extra care when approaching blind corners,
shrubs, trees or other objects that may obscure
your vision of a child or other hazard.
• Use extra care with grass catchers or other
attachments. These can change the stability of the
machine.
• Remove key when machine is unattended to
prevent unauthorized operation.
• Keep all movement on the slopes slow and
gradual. Do not make sudden changes in speed or
direction. Rapid engagement or braking could
cause the front of the machine to lift and rapidly flip
over backwards which could cause serious injury.
4. SERVICE
• Use extreme care in handling gasoline and other
fuels. They are extremely flammable and the
vapors are explosive.
• Avoid starting or stopping on a slope. If tires lose
traction, disengage the blade(s) and proceed slowly
straight down the slope.
• Use only an approved container.
• Never remove fuel cap or add fuel with the engine
running. Allow engine to cool at least two minutes
before refueling.
4
• Replace fuel cap securely and wipe off any spilled
fuel before starting the engine as it may cause a
fire or explosion.
• Grass catcher components are subject to wear,
damage and deterioration, which could expose
moving parts or allow objects to be thrown. For
your
safety
protection,
frequently
check
• Extinguish all cigarettes, cigars, pipes and other
sources of ignition.
components and replace with manufacturer’s
recommended parts when necessary.
• Never refuel the machine indoors because fuel
vapors will accumulate in the area.
• Mower blades are sharp and can cut. Wrap the
blade(s) or wear gloves and use extra caution
when servicing blade(s).
• Never store the fuel container or machine inside
where there is an open flame or spark, such as a
gas hot water heater, space heater or furnace.
• Check brake operation frequently. Adjust and
service as required.
• Never run a machine inside a closed area.
• Muffler, engine and belt guards become hot during
operation and can cause a burn. Allow to cool
down before touching.
• To reduce fire hazard, keep the machine free of
grass, leaves or other debris build-up. Clean up oil
or fuel spillage. Allow machine to cool at least 5
minutes before storing.
• Do not change the engine governor settings or
overspeed the engine. Excessive engine speeds
are dangerous.
• Before cleaning, repairing or inspecting, make
certain 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.
• Observe proper disposal laws and regulations.
Improper disposal of fluids and materials can harm
the environment and the ecology.
• Prior to disposal, determine the proper method to
dispose of waste from your local Environmental
Protection Agency. Recycling centers are
established to properly dispose of materials in an
environmentally safe fashion.
• Check the blade and engine mounting bolts at
frequent intervals for proper tightness. Also,
visually inspect blade for damage (e.g., excessive
wear, bent, cracked). Replace with blade which
meets original equipment specifications.
• Use proper containers when draining fluids. Do not
use food or beverage containers that may mislead
someone into drinking from them. Properly dispose
of the containers immediately following the draining
of fluids.
• Keep all nuts, bolts and screws tight to be sure the
equipment is in safe working condition.
• Never tamper with safety devices. Check their
proper operation regularly. Use all guards as
instructed in this manual.
• DO NOT pour oil or other fluids into the ground,
down a drain or into a stream, pond, lake or other
body of water. Observe Environmental Protection
Agency regulations when disposing of oil, fuel,
coolant, brake fluid, filters, batteries, tires and other
harmful waste.
• After striking a foreign object, stop the engine,
remove the wire from the spark plug and thoroughly
inspect the mower for any damage. Repair the
damage before restarting and operating the mower.
WARNING - YOUR RESPONSIBILITY: 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.
DO NOT OPEN THIS
COVER UNLESS THE
ENGINE IS SHUT OFF.
Figure 3 Safety labels found on your unit
5
SECTION 4: TO THE OWNER
™
Model 821 Triple Rear Bagger Kit is a grass collection system designed for use on FastAttach Compatible
Garden Tractors equipped with a 46-inch cutting deck only.
The instructions in this manual are divided into sections. Carefully read all sections and study the illustrations
to ensure proper installation and usage of this attachment. Read and observe all WARNING and CAUTION
statements. They are included to provide for the protection of the equipment installer and user, and to ensure
the prolonged service life of the equipment.
NOTE: References to LEFT and RIGHT indicate the left and right sides of the tractor when facing forward in
the operator’s position. Reference to the FRONT indicates the grille end; to the REAR the drawbar end.
SECTION 5: CONTENTS OF CARTON
Before beginning installation, remove all parts from the carton to make sure everything is present. Carton
contents are listed below and shown in Figure 4. Hardware part number are shown in parentheses.
One Chute Tube
Three Grass Bag Assemblies
One Discharge Chute Assembly
One Extension Tube
One set of Blades
One Grass Catcher Cover Assembly
One Bracket Assembly w/ Clevis Pin (711-0309A)
& Hairpin Clip (714-0117) in place
Cover Assembly
Chute Tube
Discharge Chute
Assembly
Extension Tube
Bracket Assembly
Bag Assemblies
Support Tube
(attached to cover assembly)
Clevis Pin
Hairpin Clip
Blades
Figure 4
6
SECTION 6: ASSEMBLY
Warning: Before beginning installation, place the tractor on a firm and level surface. Place the
PTO in the disengaged (OFF) position, stop the tractor engine and set the parking brake.
Support Tube Rests Here
Insert Support Tube Here
Bracket
Assembly
Hitch Plate
Clevis Pin
Shoulder Bolt
Hairpin Clip
Figure 5
2. Place the cover assembly in position so that the
support tube rests on both sides of the bracket
1. To ease the following procedures, tilt the seat
assembly. Refer to Figure 5. Allow the plastic
cover to rest in the “open” position on the back
of the tractor’s seat for ease of assembly.
2. Remove the hairpin clip and clevis pin from the
3. Attach the grass bags using the slots as shown
hole in the rear of the bracket assembly. Refer to
in Figure 6.
MOUNTING THE BRACKET ASSEMBLY
forward and leave it in that position until the
grass collector is fully attached.
Figure 4
Slots
Slots
3. Position the hooked ends of the bracket
assembly to the outside of the hitch plate and
over the shoulder bolts. Refer to Figure 5.
Slots
4. Reinsert the clevis pin through the aligned holes
in both the bracket assembly and the hitch plate.
Affix with the hairpin clip. Refer to Figure 5.
IMPORTANT: There are two holes found in the
clevis pin. Be certain to insert the hairpin clip in the
UPPER hole to properly secure the bracket
assembly to the hitch plate
ATTACHING THE COVER AND BAGS
1. Place the cover assembly’s support tube (refer
to Figure 4) in position on the rear of unit by
sliding the support tube down through the holes
in the center of the bracket assembly. Refer to
Figure 5.
Figure 6
4. Close the cover on the grass collector.
7
ATTACHING THE CUTTING BLADES
ATTACHING THE DISCHARGE CHUTE
1. Raise the deck to its highest position by placing
the lift lever in the top notch on the right fender.
Raise the chute deflector on the deck.
WARNING: Cutting blades are sharp.
Always protect hands by wearing heavy
leather work gloves to grasp blades.
2. Place the top edge of the discharge chute in
position over the chute opening on the deck,
then push down on the discharge chute so the
front edge fits snugly around the cutting deck
opening. See Figure 8.
Remove the blades from your tractor’s cutting deck
as follows.
1. Remove the cutting deck from beneath the
tractor, (refer to DECK REMOVAL in the
MAINTENANCE section of your tractor’s
Operator’s Manual for detailed instructions) then
gently flip the deck over to expose its underside.
Chute
Deflector
Retainer
Strap
Clip
2. Place a block of wood between the center deck
housing baffle and the cutting blade to act as a
stabilizer. See Figure 7.
3. Use a 15/16" wrench to remove the hex flange
nut that secures the blade to the spindle
assembly. See Figure 7.
NOTE: The hex flange nut has a right-handed
thread pattern. Do NOT attempt to force the nut in
the incorrect direction. Doing so may damage the
nut and create a safety hazard.
Discharge Chute
Cutting Deck
Figure 8
3. Fasten the discharge chute in position by
hooking the retainer strap over the retainer clip
on the top* of the deck. See Figure 8.
Hex Flange Nut
Block of Wood
*NOTE: On later model decks, the retainer clip
may be found on the SIDE or on the FRONT SKIRT
area of the deck rather than on the top of it.
4. Insert the upper end of the chute tube into the
hole in the cover assembly, then insert the
extension tube between the discharge chute and
the chute tube as shown in Figure 9.
Cutting Blade
Spindle
Assembly
5. Secure by placing the ends of the retainer straps
on the discharge chute over the clips on the
chute tube. See Figure 9.
Figure 7
4. Install the new blades packed with the bagger.
Be sure to install the blade with the side of the
blade marked ‘‘Bottom’’ (or with a part number
stamped in it) facing the ground when the mower
is in the operating position.
IMPORTANT: Mount the smaller of the three
blades to the center spindle. The remaining two
blades are interchangeable.
IMPORTANT: Use a torque wrench to tighten the
blade spindle hex flange nut to between 70 foot-
pounds and 90 foot-pounds.
5. Remount the cutting deck.
8
Retainer Clips
Extension Tube
Chute Tube
Discharge Chute
Retainer Straps
Figure 9
SECTION 7: OPERATION
GRASS BAG REMOVAL
1. To open the cover, simply lift up on cover. The
chute tube assembly does not have to be
removed.
A
B
2. To remove the grass bags, lift up on bag and
unhook the frame of the bag from the support
tube assembly. See Figure 10A.
3. To empty the grass, use the handle which is
provided on the bottom of each bag. See Figure
10B.
NOTE: Under normal usage, the grass collector is
subject to wear and should be checked periodically.
Be certain any replacement bag complies with the
mower manufacturer’s recommendation. Wash
grass bag periodically with water. Allow to air dry. Do
not use heat.
Figure 10
9
Model 821
19
15
1
1
8
33
15
4
15
8
17
8
32
33
15
15
23
15
15
10
18
29
15
15
16
31
12
20
3
2
25
9
8
14
11
13
22
5
21
24
31
15
27
9
14
7
28
6
26
30
10
Model 821
REF.
NO.
1
PART NO.
16606
DESCRIPTION
Retainer Hook Bracket
2
3
4
5
17200A
17201A
17204
Catcher Support Bracket
Bag Frame Hanger Bracket
Cover Assembly Complete
Support Tube Bracket
17247
6
7
8
9
710-0473
710-0604
710-0751
710-3008
Screw, #10-24 x .5
Self Tapping Screw, 5/16-18 x .625
Hex Cap Screw, 1/4-20 x .62
Hex Cap Screw, 5/16-18 x .75
Clevis Pin
10 711-0309A
11 712-0272
12 712-0431
13 783-0765
14 712-3004A
15 712-3027
16 714-0117
17 723-0383
18 731-0925B
19 731-0926
20 736-0108
21 736-0253
22 736-0270
23 783-0764
24 738-0380
25 783-0673
26 742-0644
27 742-0645
28 749-0745A
29 749-0750
30 764-0251
31 783-0601
32 731-2299
33 723-0476
Hex Sems Nut, 10-24
Hex Flange Lock Nut, 3/8-16
Support Cross Bracket
Hex Flange Lock Nut, 5/16-18
Hex Flange Lock Nut, 1/4-20
Internal Cotter Pin, .148 x 3
Retainer Strap Assembly
Discharge Chute
Chute Tube
Flat Washer, .51 x .75 x .033
Belleville Washer
Bell Washer, .265 x .75 x .062
LH Catcher Support Bracket
Shoulder Screw, .50 x .27, 3/8-16
RH Catcher Support Bracket
Star-center Blade, 16.28
Star-center Blade, 14.88
Grassbag Frame Tube
Catcher Support Tube
Grassbag
Catcher Support Bracket
Extension Tube
Retainer Strap Assembly
11
MANUFACTURER’S
LIMITED WARRANTY
c. Routine maintenance items such as lubricants, filters,
The limited warranty set forth below is given by MTD
PRODUCTS INC (“MTD”) with respect to new merchandise
purchased and used in the United States, its possessions
and territories.
blade sharpening and tune-ups, or adjustments such
as brake adjustments, clutch adjustments or deck
adjustments; and normal deterioration of the exterior
finish due to use or exposure.
d. MTD does not extend any warranty for products sold
or exported outside of the United States of America,
its possessions and territories, except those sold
through MTD’s authorized channels of export distribu-
tion.
MTD warrants this product against defects in material and
workmanship for a period of two (2) years commencing on
the date of original purchase and will, at its option, repair or
replace, free of charge, any part found to be defective in
material or workmanship. This limited warranty shall only
apply if this product has been operated and maintained in
accordance with the Operator’s Manual furnished with the
product, and has not been subject to misuse, abuse, com-
mercial use, neglect, accident, improper maintenance,
alteration, vandalism, theft, fire, water or damage because
of other peril or natural disaster. Damage resulting from the
installation or use of any accessory or attachment not
approved by MTD Products Inc. for use with the product(s)
covered by this manual will void your warranty as to any
resulting damages.
No implied warranty, including any implied warranty of
merchantability or fitness for a particular purpose,
applies after the applicable period of express written
warranty above as to the parts as identified. No other
express warranty or guaranty, whether written or oral,
except as mentioned above, given by any person or
entity, including a dealer or retailer, with respect to any
product shall bind MTD. During the period of the War-
ranty, the exclusive remedy is repair or replacement of
the product as set forth above. (Some states do not
allow limitations on how long an implied warranty lasts, so
the above limitation may not apply to you.)
Normal wear parts or components thereof are subject to
separate terms as follows: All normal wear part or compo-
nent failures will be covered on the product for a period of
90 days regardless of cause. After 90 days, but within the
two year period, normal wear part failures will be covered
ONLY IF caused by defects in material or workmanship of
OTHER component parts. Normal wear parts and compo-
nents include, but are not limited to, belts, blades, blade
adapters, grass bags, rider deck wheels, seats, snow
thrower skid shoes, shave plates and tires. Batteries are
covered by a 90-day limited replacement warranty.
The provisions as set forth in this Warranty provide the
sole and exclusive remedy arising from the sales. MTD
shall not be liable for incidental or consequential loss
or damages including, without limitation, expenses
incurred for substitute or replacement lawn care ser-
vices, for transportation or for related expenses, or for
rental expenses to temporarily replace a warranted
product. (Some states do not allow the exclusion or limita-
tion of incidental or consequential damages, so the above
exclusion or limitation may not apply to you.)
HOW TO OBTAIN SERVICE: Warranty service is available,
WITH PROOF OF PURCHASE THROUGH YOUR LOCAL
AUTHORIZED SERVICE DEALER. To locate the dealer in
your area, please check for a listing in the Yellow Pages or
contact the Customer Service Department of MTD PROD-
UCTS INC by calling 1-800-800-7310 or writing to P.O. Box
368022, Cleveland, Ohio 44136-9722.
In no event shall recovery of any kind be greater than the
amount of the purchase price of the product sold. Alteration
of the safety features of the product shall void this War-
ranty. You assume the risk and liability for loss, damage, or
injury to you and your property and/or to others and their
property arising out of the use or misuse or inability to use
the product.
This limited warranty does not provide coverage in the
following cases:
a. The engine or component parts thereof. These items
carry a separate manufacturer’s warranty. Please refer
to the applicable manufacturer’s warranty on these
items.
This limited warranty shall not extend to anyone other than
the original purchaser, original lessee or the person for
whom it was purchased as a gift.
b. Log splitter pumps, valves and cylinders have a sepa-
rate one year warranty.
How State Law Relates to this Warranty: This limited
warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
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