Bush Hog GC-250 Installation instructions

ASSEMBLY ll OPERATION ll MAINTENANCE
908 $4.00 50066598
GRASS CATCHER
Model GC-250
BUSH HOG®

CONGRATULATIONS!
You have invested in the best implement of its type on the market today.
The care you give your Bush og implement will greatly determine your satisfaction
with its performance and its service life. We urge a careful study of this manual to provide
you with a thorough understanding of your new implement before operating, as well as
suggestions for operation and maintenance.
If your manual should become lost or destroyed, Bush og will be glad to provide you with
a new copy. Order from Bush og, P. O. Box 1039, Selma, Alabama 36702-1039. Most of
our manuals can also be downloaded from our website at www.bushhog.com.
As an authorized Bush og dealer, we stock genuine Bush og parts which are
manufactured with the same precision and skill as our original equipment. Our trained
service personnel are well informed on methods required to service Bush og equipment,
and are ready and able to help you.
Should you require additional information or assistance, please contact us.
YOUR AUT ORIZED
BUS OG DEALER
BECAUSE BUS OG MAINTAINS AN ONGOING
PROGRAM OF PRODUCT IMPROVEMENT, WE
RESERVE T E RIG T TO MAKE IMPROVEMENTS IN
DESIGN OR C ANGES IN SPECIFICATIONS WIT -
OUT INCURRING ANY OBLIGATION TO INSTALL
T EM ON UNITS PREVIOUSLY SOLD.
BECAUSE OF T E POSSIBILITY T AT SOME
P OTOGRAP S IN T IS MANUAL WERE TAKEN OF
PROTOTYPE MODELS, PRODUCTION MODELS MAY
VARY IN SOME DETAIL. IN ADDITION, SOME
P OTOGRAP S MAY S OW S IELDS REMOVED
FOR PURPOSES OF CLARITY. NEVER OPERATE
T IS IMPLEMENT WIT OUT ALL S IELDS IN PLACE.

GRASS CATCHER
Model GC-250
TABLE OF CONTENTS
SECTION PAGE
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Federal Laws and Regulations . . . . . . . . . . . . 3
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
I INTRODUCTION AND DESCRIPTION . . . . . 9
1-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . 9
1-2 Description . . . . . . . . . . . . . . . . . . . . . . . . 9
II PREPARATION for INSTALLATION. . . . . . . 9
2-1 Unpacking the Grass Catcher. . . . . . . . . . 9
III INSTALLATION and SETUP. . . . . . . . . . . . . . 10
3-1 Installing Weight Kit . . . . . . . . . . . . . . . . . . 10
3-2 Installing Boot Assembly . . . . . . . . . . . . . . 10
3-3 Installing Frame . . . . . . . . . . . . . . . . . . . . . 11
3-4 Installing Top and Inlet Tube . . . . . . . . . . . 12
3-5 Installation and Removal of
Collection Bags . . . . . . . . . . . . . . . . . . . . . 12
3-6 Blade Installation. . . . . . . . . . . . . . . . . . . . . 13
SECTION PAGE
IV OPERATING INSTRUCTIONS . . . . . . . . . . . . 14
4-1 General Safety. . . . . . . . . . . . . . . . . . . . . . . . . . 14
4-2 Operating Tips on Mowing . . . . . . . . . . . . . . . . 14
4-3 Emptying the Collection Bags . . . . . . . . . . . . . 14
4-4 Clearing Obstructions from the
Grass Catcher. . . . . . . . . . . . . . . . . . . . . . . . . . 14
4-5 Removing the Grass Catcher . . . . . . . . . . . . . 14
V MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5-1 Maintenance Checklist . . . . . . . . . . . . . . . . . . . 15
5-2 Recommended Maintenance Schedule. . . . . 16
VI TIPS and TROUBLESHOOTING . . . . . . . . . . . . . 16
Torque Specifications. . . . . . . . . . . . . . . . . . . . . . . . 17
RETAIL CUSTOMER’S RESPONSIBILITY
UNDER THE BUSH HOG WARRANTY
It is the Retail Customer and/or Operator’s responsibility to read the Operator’s Manual, to
operate, lubricate, maintain and store the product in accordance with all instructions and
safety procedures. Failure of the operator to read the Operator’s Manual is a misuse of this
equipment.
It is the Retail Customer and/or Operator’s responsibility to inspect the product and to have
any part(s) repaired or replaced when continued operation would cause damage or exces-
sive wear to other parts or cause a safety hazard.
It is the Retail Customer’s responsibility to deliver the product to the authorized Bush og
Dealer, from whom he purchased it, for service or replacement of defective parts which are
covered by warranty. Repairs to be submitted for warranty consideration must be made with-
in forty-five (45) days of failure.
It is the Retail Customer’s responsibility for any cost incurred by the Dealer for traveling to or
hauling of the product for the purpose of performing a warranty obligation or inspection.
1

LIMITED WARRANTY
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Bush og warrants to the original purchaser of any new Bush og equipment, purchased from an
authorized Bush og dealer, that the equipment be free from defects in material and workmanship for a peri-
od of one (1) year from date of retail sale. The obligation of Bush og to the purchaser under this warranty is
limited to the repair or replacement of defective parts.
Replacement or repair parts installed in the equipment covered by this limited warranty are warranted
for ninety (90) days from the date of purchase of such part or to the expiration of the applicable new equip-
ment warranty period, whichever occurs later. Warranted parts shall be provided at no cost to the user at an
authorized Bush og dealer during regular working hours. Bush og reserves the right to inspect any equip-
ment or parts which are claimed to have been defective in material or workmanship.
DISCLAIMER OF IMPLIED WARRANTIES & CONSEQUENTIAL DAMAGES
Bush og’s obligation under this limited warranty, to the extent allowed by law, is in lieu of all war-
ranties, implied or expressed, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
NESS FOR A PARTICULAR PURPOSE and any liability for incidental and consequential damages with
respect to the sale or use of the items warranted. Such incidental and consequential damages shall include
but not be limited to: transportation charges other than normal freight charges; cost of installation other than
cost approved by Bush og; duty; taxes; charges for normal service or adjustment; loss of crops or any other
loss of income; rental of substitute equipment, expenses due to loss, damage, detention or delay in the deliv-
ery of equipment or parts resulting from acts beyond the control of Bush og.
THIS LIMITED WARRANTY SHALL NOT APPLY:
1. To vendor items which carry their own warranties, such as engines, tires, and tubes.
2. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.
3. If parts not made or supplied by Bush og have been used in connection with the unit, if, in the sole
judgement of Bush og such use affects its performance, stability or reliability.
4. If the unit has been altered or repaired outside of an authorized Bush og dealership in a manner
which, in the sole judgement of Bush og, affects its performance, stability or reliability.
5. To normal maintenance service and normal replacement items such as gearbox lubricant, hydraulic fluid,
worn blades, or to normal deterioration of such things as belts and exterior finish due to use or
exposure.
6. To expendable or wear items such as teeth, chains, sprockets, belts, springs and any other items that in
the company’s sole judgement is a wear item.
NO EMPLOYEE OR REPRESENTATIVE OF BUS OG IS AUT ORIZED TO C ANGE T IS LIMITED
WARRANTY IN ANY WAY OR GRANT ANY OT ER WARRANTY UNLESS SUC C ANGE IS MADE I N
WRITING AND SIGNED BY BUS OG’S SERVICE MANAGER, POST OFFICE BOX 1039, SELMA,
ALABAMA 36702-1039.
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Record the model number, serial number and date
purchased. This information will be helpful to your
dealer if parts or service are required.
MAKE CERTAIN T E WARRANTY REGISTRATION
CARD AS BEEN FILED WIT BUS /
SELMA, ALABAMA
MODEL NUMBER
DATE OF RETAIL SALE
2

IMPORTANT FEDERAL LAWS AND REGULATIONS* CONCERNING
EMPLOYERS, EMPLOYEES AND OPERATIONS.
*(This section is intended to explain in broad terms the concept and effect of the following federal laws and
regulations. It is not intended as a legal interpretation of the laws and should not be considered as such).
U.S. Public Law 91-596 (The Williams-Steiger Occupational and ealth Act of 1970) OS A
This Act Seeks:
“...to assure so far as possible every working man and woman in the nation safe and healthful working
conditions and to preserve our human resources...”
DUTIES
Sec. 5 (a) Each employer—
(1) shall furnish to each of his employees employment and a place of employment
which are free from recognized hazards that are causing or are likely to cause
death or serious physical harm to his employees;
(2) shall comply with occupational safety and health standards promulgated under
this Act.
(b) Each employee shall comply with occupational safety and health standards
and all rules, regulations and orders issued pursuant to this Act which are
applicable to his own actions and conduct.
OSHA Regulations
Current OS A regulations state in part: “At the time of initial assignment and at least annually thereafter, the
employer shall instruct every employee in the safe operation and servicing of all equipment with which the
employee is, or will be involved.” These will include (but are not limited to) instructions to:
Keep all guards in place when the machine is in operation;
Permit no riders on equipment;
Stop engine, disconnect the power source, and wait for all machine movement to stop before
servicing, adjusting, cleaning or unclogging the equipment, except where the machine must be
running to be properly serviced or maintained, in which case the employer shall instruct employees
as to all steps and procedures which are necessary to safely service or maintain the equipment.
Make sure everyone is clear of machinery before starting the engine, engaging power, or operating
the machine.
Child Labor Under 16 Years Old
Some regulations specify that no one under the age of 16 may operate power machinery. It is your
responsibility to know what these regulations are in your own area or situation. (Refer to U.S. Dept. of
Labor, Employment Standard Administration, Wage & ome Division, Child Labor Bulletin #102.)
EMPLOYEE TRACTOR OPERATING INSTRUCTIONS:
1. Securely fasten your seat belt if the tractor has a
ROPS.
2. Where possible, avoid operating the tractor near
ditches, embankments, and holes.
3. Reduce speed when turning, crossing slopes, and
on rough, slick, or muddy surfaces.
4. Stay off slopes too steep for safe operation.
5. Watch where you are going, especially at row
ends, on roads, and around trees.
6. Do not permit others to ride.
7. Operate the tractor smoothly - no jerky turns,
starts, or stops.
8. itch only to the drawbar and hitch points recom-
mended by tractor manufacturers.
9. When tractor is stopped, set brakes securely and
use park lock if available.
3

IMPORTANT SAFETY PRECAUTIONS
Carefully read all of the safety instructions and decals in the safety section.
This information could help you, your family, pets or bystanders avoid injury.
Training
• Regard the Bush og GC-250 Grass Catcher as a piece of power equipment and teach this regard to all
who operate this unit.
• Before operating your Grass Catcher, carefully read and understand this manual and the operator’s man-
ual for your mower in their entirety. Familiarize yourself with the controls and the proper use of the equip-
ment. If the operator(s) or mechanic(s) can not read English, it is the owner’s responsibility to explain this
material to them.
• Do not allow operation of this machine by untrained personnel. Never allow children, teenagers, or peo-
ple unfamiliar with these instructions to use the mower. Local regulations may restrict the age of the opera-
tor.
• Avoid mowing while people, especially children, or pets, are nearby. Keep in mind that the operator or
user is responsible for accidents or hazards occurring to other people or their property.
Preparation
• Evaluate the terrain to determine what accessories and attachments are needed to properly and safely
perform the job.
•The use of personal protective equipment, such as (but not limited to) protection for the eyes, ears, feet,
and head is recommended.
• While mowing, always wear substantial footwear and long trousers. Do not operate equipment when
barefoot or when wearing open sandals.
• Thoroughly inspect the area where the equipment is to be used and remove all stones, sticks, wires,
bones, and other foreign objects which may damage the equipment or cause personal injury to the opera-
tor or bystanders.
Operation
Although hazard control and accident prevention are partially dependent upon the design and configuration
of the equipment, these factors are also dependent upon the awareness, concern, prudence, and proper
training of the personnel involved in the operation, transport, maintenance, and storage of the equipment.
It is essential that all Operator Safety Mechanisms be connected and in operating condition prior to use for
mowing. Refer to the Operator’s Manual for the mower for additional hazard control and accident preven-
tion information.
•Become familiar with all operating
and safety instruction in the
Operator’s manual for the mower
before using this attachment.
• Never remove the discharge tube,
bags, bagger top or discharge
deflector while the engine is
running.
•Always shut the engine off, engage
parking brake, wait for all moving
parts to stop and remove key
before clearing an obstruction from
the bagging system.
•Never do maintenance or repairs
while the engine is running.
•Never operate the lawn mower
unless you install a mulch plate,
discharge deflector, or entire grass
collection system.
To avoid personal injury, follow these procedures:
4

•Use EXTREME caution when mowing
and/or turning on slopes as loss of traction
and/or tip-over could occur. The operator is
responsible for safe operation on slopes.
!CAUTION
Mowing on wet grass or steep slopes can
cause sliding and loss of control. Wheels drop-
ping over edges can cause rollovers, which
may result in serious injury, death or drowning.
To avoid loss of control and possibility of
rollover:
•Do not mow slopes when grass is wet.
•Do not mow near drop-offs or near water.
•Do not mow slopes greater than15 degrees.
•Reduce speed and use extreme caution on
slopes.
•Avoid sudden turns or rapid speed changes.
Refer to the Slope Chart on page 6 to deter-
mine the approximate slope angle to be
mowed.
•Greater care must be taken as the slope
increases.
•Always avoid sudden starting or stopping
on a slope. If tires lose traction,
disengage the blades and proceed slowly
down the slope.
•Avoid sudden starts when mowing uphill.
Mower may tip backwards.
•Be aware that loss of traction may occur
going downhill. Weight transfer to the front
wheels may cause drive wheels to slip and
cause loss of braking and steering.
•Watch for ditches, holes, rocks, dips, and
rises that change the operating angle, as
rough terrain could overturn the machine.
•Remove or mark obstacles such as rocks,
tree limbs, etc. from the mowing area. Tall
grass can hide obstacles.
•The operating characteristics of the machine
will change with the Grass Catcher installed.
The stability and traction of the machine will
change as the Bagger fills with grass clip-
piings. Use progressively greater care on
slopes as the Bagger fills.
•Always install and remove the Bagger,
including counterweights, as instructed.
Failure to do so will cause a reduction in
stability or traction. Do not operate the
mower with only a portion of the Bagger
installed.
Slopes
1. Safe Zone-use the Grass Catcher here.
2. Slope, drop-off or soft ground. Do not use
Grass Catcher here, use walk behind or
hand trimmer mower.
3. Water
5

SLOPE ANGLE GUIDE
ALIGN THIS EDGE WITH A VERTICAL SURFACE
(TREE. BUILDING, FENCE POST. POLE, ETC.)
FOLD ALONG APPROPRIATE LINE
EXAMPLE: COMPARE
SLOPE WIT FOLDED
EDGE
TIS IS A 15° SLOPE
T IS IS A 10° SLOPE
T IS IS A 5° SLOPE
6

Safety Alert Symbol
This Safety Alert Symbol means: “ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!”
This symbol is used to call attention to safety
precautions that should be followed by the
operator to avoid accidents. When you see this
symbol, carefully read the message that follows
and heed its advice. Failure to comply with
safety precautions could result in death or seri-
ous bodily injury.
Safety Signs Signal Words
The signal words DANGER, WARNING, AND CAUTION are used on the equipment safety signs. These words
are intended to alert the viewer to the existence and the degree of hazard seriousness.
This signal word indicates a potentially hazardous situation
which, if not avoided, will result in death or serious injury.
White letters on RED
This signal word indicates a potentially hazardous situation
which, if not avoided, could result in death or serious injury
It may also be used to alert against unsafe practices.
Black letters on ORANGE
This signal word indicates a potentially hazardous situation exist
which, if not avoided, may result in minor or moderate injury.
It may also be used to alert against unsafe practices.
Black letters on YELLOW
7

SAFETY DECALS
To promote safe operation, Bush og supplies safety decals on all products manufactured. Because damage can
occur to safety decals either through shipment, use or reconditioning, Bush og will, upon request, provide safety
decals for any of our products in the field at no charge. Contact your authorized Bush og dealer for more informa-
tion.
50031302
50052915
50052916
50031305
8

SECTION I
INTRODUCTION AND
DESCRIPTION
1-1 Introduction
We are pleased to have you as a return Bush og cus-
tomer. Your GC-250 has been designed to give you a
low maintenance, simple, and effective way to collect
the grass clippings or perform spring/fall clean-up with
your Bush og ome Series ZT mower. This manual is
provided to give you the necessary instructions to prop-
erly mount and operate the GC-250 on your ZT mower.
Please read this manual thoroughly. Understand what
each control is for and how to use it. Observe all safety
decal precautions on the machine and noted through-
out the manual.
Note: all references made to right, left, front, rear, top
or bottom are as viewed from the normal operator's
position on the ZT mower.
Note: All work must be performed with the engine off
and the parking brake locked.
1-2 Description
The GC-250 Grass Catcher, Figure 1, is designed for
turf maintenance where there is a need to collect the
grass clippings as the ZT mower cuts the turf. It is also
good for picking up leaves and twigs in pre-season and
post-season clean-up.
Grass clippings are drawn from the discharge area of
the cutter deck up to the collection bags mounted over
the rear portion of the ZT frame. Once the bags are full
of clippings, the top of the unit can be pivoted up and
each of the two bags can be removed individually for
emptying.
Figure 1
SECTION II
PREPARATION FOR
INSTALLATION
2-1 Unpacking the Grass Catcher
Carefully remove wrapping from around shipping crate
and open boxes. Remove and sort all parts for easy
identification.
GC-250 GRASS CATCHER KIT
CONTENTS
9

SECTION III
INSTALLATION AND SETUP
3-1 Installing the Weight Kit
!! WARNING!
The front weight kit is designed to provide stabili-
ty of operation when the Grass Catcher is attached
to the machine.
The front weight and holder brackets must be
removed when the ZT is in use without the grass
catcher attached.
Operation of the ZT with the weight kit in place
without the grass catcher could cause loss of trac-
tion and steering control resulting in injury or
death.
NOTE: The removeable weight is heavy and care
should be taken when lifting the weight. Be sure
you have a firm grip on the weight. Position your
hands when placing the weight in the brackets so
it will not set down on your hands or fingers.
A.Begin by removing the two pan head screws that
secure the foot panel to the frame front crossmember
(Figure 2). Retain the fasteners for reinstallation. Lift
the floor panel off the frame and lay aside for reinstalla-
tion.
Figure 2
Pan ead Screws
Foot Panel
Figure 3
Figure 4
Weight
Front
Crossmember
Foot Panel
Mount
Bracket
Weight Brackets
Install the weight brackets to the front crosmember with
the weight bracket hangers passing through foot panel
mount brackets as shown in (Figure 3).
B. The front weight is 3” x 4” x 18” long and
weighs approximately 60 pounds. If you are not
capable of lifting 60 pounds with ease, get help to
perform this step.
Place the weight into the weight brackets with the 4”
side down. Make sure the weight is completely into the
brackets and not sitting on the edge of the brackets.
See (Figure 4). When the weight is securely in place
reinstall the foot panel.
3-2 Installing the Boot Assembly
A. Assemble the Boot Plate to the Boot. Use the three
5/16” x 3/4” carriage bolts and 5/16” flange nuts sup-
plied in bag of fasteners.
Place the Boot Plate atop the Boot and align holes.
Place the carriage bolts through from the inside of the
boot with the heads down. Apply the flange nuts and
leave slightly loose. Refer to (Figure 5).
B. After the Boot is assembled it is ready to attach to
the mower deck. Place the Boot Plate between the
mounting lugs on the mower deck. Align the holes and
place the Boot Rod supplied in kit through the holes
and pin in place with the 3/32” x 2” hair pin supplied in
kit.
Figure 5 Boot Plate
5/16” x 3/4” Carriage Bolts
5/16” Flange nuts
Boot
10

With the Boot assembly in place make sure the 5/16”
flange nuts are loose enough to allow the bolts to slide
in the slotted hole. Place down pressure to the Boot
squaring it to the dischare chute of the mower. old the
Boot in place and tighten the flange nuts. Rerfer to
(Figure 6).
3-3 Installing the Frame
In order to mount the grass catcher frame to the ZT
it will be necessary to remove the rear bumper from
the machine. Refer to (Figure 7). NOTE: These
instructions are written assuming the machine is
equipped with the Optional ROPS attached.
A.Begin by removing the four 1/2” x 3-1/4” bolts and
1/2’ lock nuts that hold the ROPS in the mounting
brackets. Retain these fasteners for re-installation.
Slide the ROPS out of the brackets and lay aside.
Remove the six 3/8” x1” bolts (four 3/8” x 7/8” bolts if
ROPS is not attached) and 3/8” lock nuts attaching the
rear bumper to the frame. Retain these fasteners for re-
installation. Remove the bumper.
Figure 7
Figure 6
Boot Rod
Mounting Lugs
3/32” x 2” air Pin
Boot Assembly
B. Attach the right hand and left hand frame brackets
and the optional ROPS mounting brackets to the out-
side of the ZT frame as shown in (Figure 8). Use four
3/8” x 3/4” bolts or (six 3/8” x 1” bolts if ROPS is
attached) and 3/8” locknuts.Tighten all fasteners, If
ROPS is attached leave all fasteners slightly lose and
proceede to next step.
Figure 8
C.Re-install the ROPS into the ROPS mounting
brackets and bolt to the frame using the four 1/2” x 3-
1/4” bolts and 1/2” locknuts originally used to mount to
the rear bumper. Tighten all mounting fasteners.
See ( Figure 9).
Figure 9
ROPS
Mounting
Bracket
L. .
ROPS
Mounting
Bracket
R. .
Rear
Bumper
1/2” x 3-1/4” Bolts
1/2” x 3-1/4”
Bolts
3/8” x 1” Bolts w/ROPS
3/8” x 7/8”Bolts wo/ROPS
ROPS
Optional L. . ROPS Bracket
L. . Frame Bracket
R. . Frame Bracket
Optional R. . ROPS Bracket
(6) 3/8” x 1” Bolts & 3/8” Locknuts w/ROPS
(4) 3/8” x 3/4” Bolts & 3/8” Locknuts wo/ROPS
(6) 3/8” x 1” Bolts & 3/8” Locknuts w/ROPS
(4) 3/8” x 3/4” Bolts & 3/8” Locknuts wo/ROPS
ZT
Frame
ZT
Frame
1/2” x 3-1/4” Bolts
1/2” Locknuts
2 per side
Optional R. . ROPS
Bracket shown
ROPS
R. . Frame Bracket
11

D. Place the lower frame assembly to the ends of the
frame bracket s as shown in (Figure 10). Use Four 3/8”
x 3/4” bolts and 3/8” Nyloc locknuts from the hardware
package.
Figure 10
3-4 Installing the Top and Inlet Tube
A. Place the top assembly on the upper frame
assembly so the hinge areas are located between the
hinge lugs on the upper frame assembly. Align the
holes and insert a 5/16” x 2-1/2” bolts and two 5/16”
nyloc nuts. Do not overtighten the nut, the top
assembly should raise and lower freely. Refer to
(Figure 12).
Figure 12
B. Locate the inlet tube and install to the top assem-
bly. To install raise the lid and place the smooth end of
the tube through the hole. Push the tube through the
hole and firmly apply pressure until the lip has seated
against the inside of the top. Refer to (Figure 13)
Lower Frame
Assembly
3/8” x 3/4” Bolts
3/8” Nyloc Locknuts
Frame Bracket
Ends
5/16” x 2-1/2 bolt
5/16”Nylock nut Top Assembly
inge Lugs
Upper
Frame
Assembly
Figure 13
C. After the inlet tube is in place attach the 6” hose to
the inlet tube and the boot assembly. Use the two large
hose clamps supplied in the bag of hardware. For best
collection results, trim hose so there is no more than 2
inches excess hose with mower deck in the lowest
position. Refer to (Figure 14).
Figure 14
3-5 Installation / Removal of Collection
Bags
A. To install the bag onto the ring, first install the ring end caps
onto both ends of the ring. Place the seam openings of the bag
onto the bag ring openings and slide the bag around the ring
until the bag is completely on the ring. Continue to slide the bag
around the ring until the seam opening in the bag is opposite
the gap in the bag ring. Refer to (Figure 15)
Top Assembly
Inlet Tube
Inlet Tube Lip
ose Clamps
Ring End Caps
Bag Ring
Location of
Bag Ring End
Caps after
installation
(Under Fabric)
Figure 15
12

B. Install the completed assemblies into the support
frame and close the plastic top. Refer to (Figure 16)
Figure 16
3-6 Blade Installation
Note:Blade kits will either have two 18.1”
long blades for the 36” mower deck or two
21.1” long blades for the 42” mower deck.
WARNING!
WHEN IT IS NECESSARY TO RAISE THE
DECK OR MOWER FOR SERVICE OR MAIN-
TENANCE, TO AVOID SERIOUS IN URY
OR DEATH, STOP ENGINE, SET PARKING
BRAKE, REMOVE IGNITION KEY AND
SPARK PLUG WIRES AND SECURELY SUP-
PORT THE DECK OR MOWER BEFORE
WORKING UNDERNEATH.
A. Lift Deck and secure in raised position.
B. Begin by removing the standard blades.
C. Remove bolt, cup washer and blade from
shaft.
D. Install the new parallel uplift blades to the
spindle with the curved part of the blade
pointing up.
E. Install blades with the concave side of the
cup washer against the blade. Be sure the
blades are installed with the uplifts and
cutting edges in the proper directions.
Tighten the blade bolt to 76 ft-lbs
torque.
Refer to (Figure 17).
Figure 17
Always use original Bush Hog Parts and
refer to the mowers operators manual for
blade maintenance.
Spindle
Nut on top
of Sheave
Blade
Cup Washer
Blade Bolt
Bags Installed into
Support Frame
13

SECTION IV
OPERATING INSTRUCTIONS
4-1 General Safety
Only qualified people familiar with this operator’s manu-
al and the mower’s operator’s manual should operate
this machine.
4-2 Operation and Tips on Mowing
A. Perform BEFORE EAC USE maintenance list
in paragraph 5-1.
B. Start mower.
C. With the mower engine at high speed, engage the
mower deck.
NOTE: If the collection system does not appear to be
collecting the grass clippings, disengage the deck, then
engage the parking brake and turn the engine off. pro-
ceed to Section 4-3.
To obtain the maximum effectiveness from your collec-
tion system the tips listed below should be
followed:
…Larger Machine With Grass Catcher
Remember that the mower is longer and wider with this
attachment installed. By turning too sharpley in con-
fined places you may damage the grass catcher or
mower.
…Trimming
Always trim with the left side of the mower. Do not trim
with the right side of the mower because you could
damage the boot assembly and collection tube.
…Cutting Height
Do not set the mower cutting height too low because
long grass surrounding the mower can prevent air from
getting under the mower, the bagging system will plug.
…Cutting Frequency
Cut the grass often, especially when it grows rapidly.
You will have to cut your grass twice if it get excessively
long.
…Bagging Long Grass
Excessively long grass is heavy and may not be pro-
pelled completely into the grass bags. If this happens,
the discharge tube and chute may plug. To avoid plug-
ging the bagging system, mow the grass at a high
height of cut, the lower the mower to your normal mow-
ing height and repeat the bagging process.
…Bagging Wet Grass
Always try to cut grass when it is dry because your lawn
will have a neat apperance. If you must cut wet grass,
use the conventional discharge feature of the mower.
Several hours later, when the clippings are dry, install
the grass catcher and vacuum up the grass clippings.
…Signs of Plugging
As you are bagging, a small amount of grass clippings
normally blow out the front of the mower. an excessive
amount of clippings blowing out indicates that the bags
are full or plugged.
4-3 Emptying the Collection Bags
!! WARNING!
To determine when the collection bags are
full, follow the following steps:
A. Stop the forward movement of the mower.
B. Disengage the mower deck.
C. Turn the Ignition off and remove key.
D. Engage the parking brake.
E. Once the parking brake has been engaged, and
only then, walk behind the mower and check the
collection bags by lifting the plastic top.The load
in the bags should not exceed the height of the
installed bags.
F. Slide the bag out and turn the bag over to deposit
the clippings.
G. To empty the bag, remove the bag by slid-
ing rear ward. Grasp the strap on the bottom
of the bag, turn it upside down and empty the
collected debris. Repeat for the other bag. Reinstall
both bags and line with plastic bags if desired,
close the top.
NOTE: Do not allow collection bags to become over
filled as potential damage may occur to your equip-
ment. Also, be sure to clean the hood and screen as
needed.
4-4 Clearing Obstructions from
Grass Catcher
!! WARNING!
Never perform this procedure with the
engine running! To do so could result in
severe injury or death.
A. Stop the forward movement of the mower.
B. Disengage the mower deck.
C. Turn the Ignition off and remove key.
D. Engage the parking brake.
E. Check the collection bags and empty if they are full.
Refer to step 4-3.
F. Remove the boot assembly from the deck by
removing the boot rod and hair pin (refer to Figure
6). Use a stick or simular object to remove the
obstruction from the mower, boot assembly or col-
lection tube.
G. After the obstruction is removed re-attach the
boot assembly to the deck.
H. Resume mowing.
4-5 Removing the Grass Catcher
!! WARNING!
This machine should NEVER be in operation with
the mower discharge opening uncovered. Thrown
objects from an uncovered discharge opening
could impact the operator or bystanders resulting
in injury or death. Also contact with blade could
result in injury or death.
Never operate this machine unless the discharge
opening is covered by the original grass deflector
or the complete grass catcher is installed.
14

A. Remove the collection hose and boot assembly
from the deck and the inlet tube by loosening the
hose clamp and sliding the hose off the inlet tube..
B. Raise the top and remove bags, if bags contain
debris empty them. Lay bags aside and close top.
With the aid of another worker lift the grass catcher
frame and top assembly from the hitch.
NOTE: The grass catcher hitch does not need to be
removed from the mower.
C. Re-attach the original grass delector. Refer to
(Figure 18). If the original grass deflector has been
misplaced, lost or damaged please see your nearest
Bush og Dealer and order a replacement grass
deflector kit before operating this machine.
Figure 18
4-6 Removal of the Weight Kit
!! WARNING!
The front weight and holder brackets must
be removed when the ZT is in use without
the grass catcher attached.
Operation of the ZT with the weight kit in
place without the grass catcher could
cause loss of traction and steering control
resulting in injury or death.
A. Begin by removing the two pan head screws that
secure the foot panel to the frame front crossmember
(Figure 2). Retain the fasteners for reinstallation. Lift
the floor panel off the frame and lay aside for reinstalla-
tion.
B. Remove the weight from the weight brackets See
(Figure 4).
NOTE: The front weight is 3” x 4” x 18” long and
weighs approximately 60 pounds. If you are not
capable of lifting 60 pounds with ease, get help to
perform this step.
C. Remove the weight mounting brackets.
D. Re-install the foot panel.
Original Grass Deflector Attaching Pin
1/8” x 1” Cotter Pins
3/8” Flatwashers
SECTION V
MAINTENANCE
5-1 Maintenance Checklist
Before each use:
1. Check blades and spindles to be sure that no for-
eign objects, such as wire or steel strapping
bands, are wrapped around them.
2. Inspect blades for wear. Replace if necessary. If it
is necessary to sharpen blades, remove the
blades from the spindles before sharpening. DO
NOT sharpen blades while still attached to the
mower.
3. Make sure all shields are in place and in good
condition. Repair or replace any missing or dam-
aged shields.
4. Listen for abnormal sounds, which might indicate
loose parts, damaged bearings, or other dam-
age. Correct any deficiency before continuing operation.
5. Check for wear or deterioration of the hose. If there
are any portions of the hose that have been torn or
worn through, replace with genuine BUS OG parts.
After Each Use:
1. Clean all debris from machine especially from the
collection bags, and off of safety decals. Replace any
missing or illegible decals.
2. Inspect the unit for worn or damaged compo-
nents. Repair or replace before next use. Any
replacement component installed during repair
shall include the component’s current safety
decal specified by the manufacturers to be
affixed to the component.
Parts And Service Information
Bush og Grass Catcher owners should record the
name and telephone number of their dealer. Your deal-
er will be happy to supply replacement parts, acces-
sories and do any service or repairs to your Grass
Catcher. If for any reason your dealer is unable to ser-
vice your Grass Catcher or supply replacement parts,
contact Bush og and include the following information
from the serial number plate:
Model Number______________________________
15

5-2 Recommended Maintenance
Schedule
Maintenace Service Maintenace Procedure
Intrevals
After first 10 hours of •Inspect the Grass Catcher
operation
Before each use •Clean the Grass Catcher
Before storage •Inspect the Grass Catcher
•Clean the Grass Catcher
Inspecting the Grass Catcher
Inspect the bagger attachment after the first 10 hours of
operation, and monthly thereafter.
1. Check the chute, discharge tube, and the bagger top.
Replace these parts if they are cracked or broken.
2. Tighten all nuts, bolts, and screws.
3. Under normal use the bags will deteriorate and wear.
Inspect the grass bags for deterioration.
!! CAUTION!
You or bystanders could be severely injured by
flying debris or thrown objects that may pass
through torn, worn or deteriorated grass bags.
•Frequently check the grass bags for holes, rips,
wear, and other deterioration.
•Do not wash the grass bags.
•If the bag has deteriorated, install new grass bags
supplied by the manufacturer of this bagger
attachment.
Inspecting the Mower Blades
Refer to your mower Operator’s Manual for complete
blade maintenance.
Caring for the Grass Bags
Washing the grass bags is not recommended.
Under normal use the bags will deteriorate and wear. To
prevent rapid deterioration of the bag material, store the
bags where they will dry completely after each use.
Cleaning the Grass Catcher
1. After each use, remove and wash the inside and out
side of the Grass Catcher top, discharge tube, chute,
and the underside of the mower, using water sprayed
from a garden hose. Use a mild automotive detergent
to remove stubborn dirt.
2. Make sure you remove matted grass from all parts.
3. After washing, let all of the parts dry thoroughly. Do
not wash the grass bags.
Storage
Storing the Grass Catcher
1. Clean the Grass Catcher; refer to Cleaning the
Grass Catcher.
2. Inspect the Grass Catcher for damage; refer to
Inspecting the Grass Catcher.
3. Make sure the grass bags are empty and thoroughly
dry.
4. Store the Grass Catcher in a clean, dry place, out of
direct sunlight. This protects the plastic parts and
extends the life of the bagger. If you must store the
bagger outside, cover it with a weatherproof cover.
SECTION VI
TIPS
AND
TROUBLESHOOTING
1. When the bags get full, there will be slight blowout
from the front right corner of the Grass Catcher.
Emptying the bags at this point will minimize the
potential for the tube to plug.
2. If there is excessive blowout from the deck, check to
make sure that the rear screen in the hood is clear of
grass build up. It is recommended that the screen
and mesh portions of the bags be cleaned regularly to
maintain proper air flow. This is especially important in
wet conditions.
3. During dry conditions check engine air cleaners and
clean cooling fins more frequently. The Grass Catcher
has been designed to minimize the impact of dust and
debris on the mower, but bagging can be a dirty envi-
ronment.
4 Maintaining a ground speed that does not pull down
the engine RPM will allow for the highest productivity
and best quality of cut. Bogging the engine RPM down
by going too fast will cause plugging and quality of cut
issues.
5. When storing the bagger, it is recommended that any
grass build up in the tubes be cleaned out.
16

BOLT DIAMETER
WRENCH (IN.) “B” AND SAE SAE SAE
SIZE (IN.) “A” THREAD SIZE GRADE 2 GRADE 5 GRADE 8
7/16 1/4 - 2O UNC 6 (7) 8 (11) 12 (16)
7/16 1/4 - 28 UNF 6 (8) 10 (13) 14 (18)
1/2 5/16 - 18 UNC 11 (15) 17 (23) 25 (33)
1/2 5/16 - 24 UNF 13 (17) 19 (26) 27 (37)
9/16 3/8 - 16 UNC 20 (27) 31 (42) 44 (60)
9/16 3/8 - 24 UNF 23 (31) 35 (47) 49 (66)
5/8 7/16 - 14 UNC 32 (43) 49 (66) 70 (95)
5/8 7/16 - 20 UNF 36 (49) 55 (75) 78 (106)
3/4 1/2 - 13 UNC 49 (66) 76 (103) 106 (144)
3/4 1/2 - 20 UNF 55 (75) 85 (115) 120 (163)
7/8 9/16 - 12 UNC 70 (95) 109 (148) 153 (207)
7/8 9/16 - 18 UNF 79 (107) 122 (165) 172 (233)
15/16 5/8 - 11 UNC 97 (131) 150 (203) 212 (287)
15/16 5/8 - 18 UNF 110 (149) 170 (230) 240 (325)
1-1/8 3/4 - 10 UNC 144 (195) 266 (360) 376 (509)
1-1/8 3/4 - 16 UNF 192 (260) 297 (402) 420 (569)
1-5/16 7/8 - 9 UNC 166 (225) 430 (583) 606 (821)
1-5/16 7/8 - 14 UNF 184 (249) 474 (642) 668 (905)
1-1/2 1 - 8 UNC 250 (339) 644 (873) 909 (1232)
1-1/2 1 - 12 UNF 274 (371) 705 (955) 995 (1348)
1-1/2 1 - 14 UNF 280 (379) 721 (977) 1019 (1381)
1-11/16 1-1/8 - 7 UNC 354 (480) 795 (1077) 1288(1745)
1-11/16 1-1/8 - 12 UNF 397 (538) 890 (1206) 1444 (1957)
1-7/8 1-1/4 - 7 UNC 500 (678) 1120 (1518) 1817 (2462)
1-7/8 1-1/4 - 12 UNF 553 (749) 1241 (1682) 2013 (2728)
2-1/16 1-3/8 - 6 UNC 655 (887) 1470 (1992) 2382 (3228)
2-1/16 1-3/8 - 12 UNF 746 (1011) 1672 (2266) 2712 (3675)
2-1/4 1-1/2 - 6 UNC 870 (1179) 1950 (2642) 3161 (4283)
2-1/4 1-1/2 - 12 UNF 979 (1327) 2194 (2973) 3557 (4820)
TORQUE SPECIFICATIONS
Proper toque for American fasteners used on Bush og equipment.
Recommended Torque in Foot Pounds (Newton Meters).*
Proper torque for metric fasteners used on Bush og equipment.
Recommended torque in foot pounds (Newton Meters).*
—WRENCH BOLT
SIZE DIA. ASTM ASTM ASTM ASTM
(mm) “A” (mm) “B” 4.6 8.8 9.8 10.9
851.8 (2.4) 5.1 (6.9) 6.5 (8.8)
10 6 3 (4) 8.7 (12) 11.1 (15)
13 8 7.3 (10) 21.1 (29) 27 (37)
16 10 14.5 (20) 42 (57) 53 (72)
18 12 25 (34) 74 (100) 73 (99) 93 (126)
21 14 40 (54) 118 (160) 116 (157) 148 (201)
24 16 62 (84) 167 (226) 181 (245) 230 (312)
30 20 122 (165) 325 (440) 449 (608)
33 22 443 (600) 611 (828)
36 24 211 (286) 563 (763) 778 (1054)
41 27 821 (1112) 1138 (1542)
46 30 418 (566) 1119 (1516) 1547 (2096)
*Use 75% of the specified torque value for plated
fasteners. Use 85% of the specified torque values
for lubricated fasteners.
Numbers appearing on bolt heads
indicate ASTM class.
METRIC
AMERICAN
Bolt ead Markings
Wrench
Size “A”
Bolt
Diameter “B”
SAE Grade 8
(6 Dashes)
SAE Grade 2
(No Dashes)
SAE Grade 5
(3 Dashes)
Wrench
Size “A” 8.8
Bolt
Diameter “B”
17

NOTES