Bush Hog GC-350 Operator`s manual

PZ & CZ ZERO TURN MOWER
MAX VAC
GRASS COLLECTION SYSTEM
Models
GC-350 &
GC-350CZ
Operator’s Manual
ASSEMBLY ● OPERATION ● MAINTENANCE
1006
$4.00
50054971
CONGRATULATIONS!
You have invested in the best implement of its type on the market today.
The care you give your Bush Hog 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 Hog will be glad to provide you with
a new copy. Order from Bush Hog, 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 Hog dealer, we stock genuine Bush Hog 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 Hog equipment,
and are ready and able to help you.
Should you require additional information or assistance, please contact us.
YOUR AUTHORIZED
BUSH HOG DEALER
BECAUSE BUSH HOG MAINTAINS AN ONGOING
PROGRAM OF PRODUCT IMPROVEMENT, WE
RESERVE THE RIGHT TO MAKE IMPROVEMENTS IN
DESIGN OR CHANGES IN SPECIFICATIONS WITHOUT INCURRING ANY OBLIGATION TO INSTALL
THEM ON UNITS PREVIOUSLY SOLD.
BECAUSE OF THE POSSIBILITY THAT SOME
PHOTOGRAPHS IN THIS MANUAL WERE TAKEN OF
PROTOTYPE MODELS, PRODUCTION MODELS MAY
VARY IN SOME DETAIL. IN ADDITION, SOME
PHOTOGRAPHS MAY SHOW SHIELDS REMOVED
FOR PURPOSES OF CLARITY. NEVER OPERATE
THIS IMPLEMENT WITHOUT ALL SHIELDS IN PLACE.
PZ & CZ ZERO TURN MOWER
GRASS CATCHER
TABLE OF CONTENTS
SECTION
SECTION
PAGE
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2-9 Attachment of The Upper Hose . . . . . . . . . . 8
2-10 Attachment Of The Upper Hose To. . . . . . . . 8
The Lower Cone
2-11 Attachment Of The Lower Hose To . . . . . . 8
The Boot
2-12 Front Weight Assembly . . . . . . . . . . . . . . . 8
2-13 Installation/Removal Of Collection Bags . . 8
Federal Laws and Regulations . . . . . . . . . . . . 3
Safety Alert Symbols. . . . . . . . . . . . . . . . . . . . 4
I
INTRODUCTION AND DESCRIPTION . . . . . 5
1-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . 5
1-2 Description . . . . . . . . . . . . . . . . . . . . . . . . 5
II
PREPARATION FOR USE . . . . . . . . . . . . . . . 5
2-1 Modification Of ZT. . . . . . . . . . . . . . . . . . . 5
2-2 Attaching Frame Mount Brackets . . . . . . . 6
2-3 Belt Installation . . . . . . . . . . . . . . . . . . . . . 6
2-4 Cam Assembly Adjustment. . . . . . . . . . . . 7
2-5 Attachemnt Of Upper Frame. . . . . . . . . . . 7
Assembly To The Lower Frame
2-6 Attachment Of Top Assembly To The. . . . 7
Upper Frame Assembly
2-7 Attachment Of The Boot To . . . . . . . . . . . 7
The Mower Deck
2-8 Adjustment Of The Lengths Of Hoses . . . 8
PAGE
III
OPERATING INSTRUCTIONS . . . . . . . . . . . . 10
3-1 General Safety . . . . . . . . . . . . . . . . . . . . . . 10
3-2 Operation & Tips On Mowing . . . . . . . . . . . 10
3-3 Disengagement Of The Blower . . . . . . . . . 10
IV
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . 10
4-1 Maintenance Checklist . . . . . . . . . . . . . . . . . . . 10
4-2 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Torque Specifications . . . . . . . . . . . . . . . . . . . . 13
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 excessive wear to other parts or cause a safety hazard.
It is the Retail Customer’s responsibility to deliver the product to the authorized Bush Hog
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 within 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
✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯
Bush Hog warrants to the original purchaser of any new Bush Hog equipment, purchased from an
authorized Bush Hog dealer, that the equipment be free from defects in material and workmanship for a period
of one (1) year from date of retail sale. The obligation of Bush Hog 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 equipment warranty period, whichever occurs later. Warranted parts shall be provided at no cost to the user at an
authorized Bush Hog dealer during regular working hours. Bush Hog reserves the right to inspect any equipment or parts which are claimed to have been defective in material or workmanship.
DISCLAIMER OF IMPLIED WARRANTIES & CONSEQUENTIAL DAMAGES
Bush Hog’s obligation under this limited warranty, to the extent allowed by law, is in lieu of all warranties, implied or expressed, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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 Hog; 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 delivery of
equipment or parts resulting from acts beyond the control of Bush Hog.
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 Hog have been used in connection with the unit, if, in the sole judgement of Bush Hog such use affects its performance, stability or reliability.
4. If the unit has been altered or repaired outside of an authorized Bush Hog dealership in a manner
which, in the sole judgement of Bush Hog, 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 BUSH HOG IS AUTHORIZED TO CHANGE THIS LIMITED WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY UNLESS SUCH CHANGE IS MADE
IN WRITING AND SIGNED BY BUSH HOG’S SERVICE MANAGER, POST OFFICE BOX 1039, SELMA,
ALABAMA 36702-1039.
✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯
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 THE WARRANTY REGISTRATION
CARD HAS BEEN FILED WITH BUSH/
SELMA, ALABAMA
2
MODEL NUMBER
SERIAL NUMBER
DATE OF RETAIL SALE
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 Health Act of 1970) OSHA
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 OSHA 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.
EMPLOYEE TRACTOR OPERATING INSTRUCTIONS:
1. Securely fasten your seat belt if the tractor has a
ROPS.
5. Watch where you are going, especially at row
ends, on roads, and around trees.
2. Where possible, avoid operating the tractor near
ditches, embankments, and holes.
6. Do not permit others to ride.
7. Operate the tractor smoothly - no jerky turns,
starts, or stops.
3. Reduce speed when turning, crossing slopes, and
on rough, slick, or muddy surfaces.
8. Hitch only to the drawbar and hitch points recommended by tractor manufacturers.
4. Stay off slopes too steep for safe operation.
9. When tractor is stopped, set brakes securely and
use park lock if available.
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 & Home Division, Child Labor Bulletin #102.)
3
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 serious
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
4
SECTION I
INTRODUCTION AND DESCRIPTION
Figure 1
Figure 2
Complete Machine
In Shipping Crate
1-1 Introduction
We are pleased to have you as a return Bush Hog
customer. Your GC-350 or GC-350CZ 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 Hog
Professional or Commercial ZT mower. This manual
is provided to give you the necessary instructions to
properly mount and operate the GC-350 or GC350CZ 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 throughout the manual.
SECTION II
PREPARATION FOR USE
2-1 Modification Of Zero Turn
Carefully remove wrapping from around shipping
crate and open boxes. Remove and sort all parts for
easy identification.
NOTE: Before each step of assembly it will help to
study the exploded drawings on pages7, 8, and 9.
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.
From the underside of the ZT engine remove the
bolt and bushing from the electric clutch assembly.
Replace these parts with the pulley and 7/16”-20 x
3-3/4” bolt that will power the grass catcher blower.
Note that the center of the hub that is extended
should be upward toward the engine. (Figure 3)
Torque the bolt to 55 ft./lbs.
Note: All work must be performed with the engine
off and the parking brake locked.
1-2 Description
Figure 3 Electric Clutch Assy. Grass Catcher Pulley
The GC-350 & GC-350CZ Grass Catcher, Figure 1,
are 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.
The blower, mounted on the right side of the unit,
uses a belt and gearbox system from the engine
PTO shaft. Drive train protection comes through belt
slippage. The blower draws grass clippings from the
discharge area of the cutter deck up to the collection
bags mounted over the rear portion of the ZT frame.
The operator can engage the blower with a push of
the over-center linkage on the right side of the unit.
Once the bags are full of clippings, the top of the
unit can be pivoted up and each of the three bags
can be removed individually for emptying.
7/16”-20 x 3-3/4” Bolt
5
2-2 Attaching Frame Mount Brackets
2-3 Belt Installation
Mount the lower frame weldment, which supports
the bagger unit, to the rear bumper as shown in
Figure 4 below using 3/8” -16 x 3” bolts, flatwashers
and 3/8” Nylock nuts.
Loosen the two bolts that secure the gear box
assembly to the PTO mount plate. (Figure 6) Loosen
the adjustment bolt until the gear box assembly is at
its far left adjustment (the gear box is moved
towards the mower’s engine pully). Install the Kevlar
cord belt from the engine pulley to the lower gear
box pulley. To tension the drive belt, turn the adjustment bolt clockwise until there is 1” of deflection,
with 10-11 lbs. of pressure between the engine pulley and the gear box pulley. Once the correct tension on the belt is achieved, tighten the (2) bolts that
secure the gear box assembly and re-attach the
shield. (Figures 6 and 7)
Figure 4 Lower Frame Weldment
Figure 6 Gear Box Attaching Bolts
3/8 - 16 x 3” Bolts
Figure 5 Bracket Mounted on Right Side ZT Frame
Belt Tension Adjustment Bolt
Blower
Figure 7 Engine Pulley
U-Bolt
PTO Assembly
3/8” x 1-1/4” Bolt
Fasten the mounting bracket to the rear frame as
shown using 3/8” x 2-1/8” x 2-1/4” long U-bolts and
Nylock nuts. NOTE: Remove 3/8” x 7/8” bolt and nut
and replace with 3/8” x 1-1/4” bolt and Nylock nut.
Position the PTO Assembly pivot pins into mounting
bracket slots and insert pin to fasten into place.
Secure with hair pin clip.
6
2-6 Attachment Of Top Assembly To The
Upper Frame Assembly
2-4 Cam Assembly Adjustment
The cam assembly, which controls the blower belt
tension, comes from the factory pre-adjusted. If the
belt is too tight, or becomes too loose, remove the
hair pin clip from the belt tension rod and pull the “L”
end of the rod out of its hole in the cam assembly .
The tension rod may then be screwed out to tighten
the belt or screwed in to loosen the belt. Replace
the “L” end into the top hole in the cam and replace
the hair pin clip. Adjust the cam stop bolt to allow
the cam to rotate slightly over center when the blower is disengaged. (Figure 8) Attach PTO handle to
it’s mount at your desired position using three 1/4” x
3/4” bolts and Nylock nuts.
Align the pivot brackets of the top assembly to the
pivot points on either side of the upper frame
asssembly. Place a fender washer between each
pivot point and fasten each side by using a 5/16” 18 x 3/4” bolt and nyloc nut. When fastening, leave
the nut slightly loose so that the top can pivot freely.
(Figure 10)
Figure 10
Top Assembly Locates Here
Nyloc Nut
Fender Washer
Figure 8 Belt Tension Rod Cam Stop Bolt Is Below
The Cam Assembly
5/16” - 18 x 3/4” Bolt
2-7 Attachment Of The Boot To The
Mower Deck
Remove the mower’s discharge chute from the cutter
deck. The boot rod will replace the discharge chute
pin and create a mounting surface for the deck boot.
Slide the boot rod through the lugs on the cutter
deck and fasten into place with a hair pin clip as
shown in Figure 11.
PTO Handle
2-5 Attachment Of Upper Frame
Assembly To The Lower Frame
NOTE: During this step it is suggested that two
people install the Top Frame to the Lower Frame
Using two people to raise the top frame, lift the top
frame above the lower frame making sure the bag
frames are located away from the engine as shown in
Figure 9. Slide the top frame vertical tube into the
lower frame vertical tube aligning the holes. Insert the
1/2’ X 2-1/2” clevis pin through the holes and fasten
with a hair pin clip.
Figure 9 Top Frame
Clevis Pin Lower Frame
Attach the boot plate to the boot using 3/8 x 1” carriage bolts inserted from the inside of the boot. This
will prevent grass from building up on the bolts. Use
3/8” serated, flanged lock nuts on the bolts, but do
not tighten at this time. With the rod in place, slide
the boot plate tabs under the rod. Allow the boot to
rotate down and rest against the cutter deck opening. Adjust the boot location to cover the deck opening and tighten the lock nuts. (Figure 11)
Figure 11 Boot
Lower Hose
Boot Plate
7
Hair Pin Clip
Rod
2-8 Adjustment Of The Lengths Of Hoses
2-12 Front Weight Assembly
The hoses in steps 2-9 and 2-10 must be cut to fit
your machine. Follow the steps and do not cut the
hoses until you have tried them on your particular
machine. Remember that the hoses must be long
enough to allow for enough clamping surface
between the inlet, blower assembly and the deck
boot.
NOTE: Before installing front weights on PZ models, install the locking pins in the front axle for
either the pivoting or fixed position.
2-9 Attachment Of The Upper Hose
Mount this assembly as shown with a 3/8” x 3-1/2” x
2-9/16” U-bolt and a 3/8” serrated flanged locknut.
Repeat this same procedure on the left hand side.
NOTE: Location of the U-bolts will vary slightly from
the picture below with different model mowers.
Loosely bolt the right hand caster mounting bracket
and the right hand weight mounting bracket together
with a 1/2” x 1” serrated flanged locknut.
Fasten the inlet to the plastic top by sliding the inlet
from the inside of the top to the outside and snap
into place. Slide a 5” - 6” upper hose clamp onto
both ends of the 6” upper hose, then slide one end
of the hose onto the inlet. Make sure there is about a
2” overlap between the hose end and the container
inlet. Proceed to slide the opposite end of the hose
onto the outlet of the blower assembly as shown in
Figure 12. Make sure both ends of the hose are
clearly attached to the inlet and the blower assembly
inlet. Tighten the hose clamps.
Using a jack, center the 3” x 4” x 27” weight between
the casters as shown. Fasten the weight to the
mounting brackets using 1/2” x 5-1/4” x 3-5/16” Ubolts and 1/2” serrated flanged locknuts. After positioning the weight, tighten all fasteners to the
required torque.
On the CZ units, add a 3” x 4” x 16” long weight kit
as shown. Lift weight with a jack and center on the
larger weight that was previously mounted. Fasten
with two 1/2” x 5-5/16” x 7” U-bolts and 1/2” Nylock
hex nuts.
Figure 12 Inlet Hose Clamp 6” Upper Hose
Figure 13 Caster Bracket
CZ Weight
Blower Outlet
Blower Cone
8” Lower Hose
Front Weight
1/2” x 5-5/16” U-Bolt
1/2” x 5-1/4” U-Bolt
Boot
3/8” U-Bolt
2-10 Attachment Of The Lower Hose To
The Blower Cone
Fasten the blower cone to the blower housing by
using two 5/16” - 18 x 2-1/2” bolts and jam nuts.
Slide a 7”-8” hose clamp over each end of the lower
hose, then proceed to slide the lower hose onto the
blower cone. Tighten the hose clamps. (Figure 12)
Weight Bracket
1/2” Bolt
2-13 Installation / Removal Of Collection Bags
To install the bag onto the ring, first install ring end caps
onto both ends of the ring. Place the seam openings of
Figure 14 Bag Installation
2-11 Attachment Of The Lower Hose To
The Boot
Bag Ring
Take the unattached end of the lower hose and slide
it over the circular end of the boot. Use the lower hose
clamp to secure the hose to the boot. (Figure 12) Tip:
Before securing the clamp, rotate the hose
counter-clockwise (away from yourself) approximately 1” to aid in retaining boot to mower deck.
Slot Bracket
Bag Ring
End Caps
(Under Fabric)
8
Cloth Bag
the bag onto the bag ring openings and slide the bag
around the ring until the slot bracket in the bag ring is
protruding through the opening in the bag. Do this for
each of the three bags. (Figure 14)
Figure 15 One Bag Removed
Install the completed assemblies onto the support
frame and close the hood. Fasten both draw latches to
hold the hood closed. (Figures 15 & 16)
NOTE: After bags have been installed, the engine
exhaust outlet may need to re-directed downward to
prevent over heating the bags.
To empty the bag, remove the bag ring by lifting and
sliding rearward. Grasp the loop on the bottom of the
bag, turn it upside down and empty the collected
debris. Repeat for the other bags. Reinstall all bags,
close the hood and reattach the draw latches.
Engine Exhaust Outlet Pipe
Plastic lawn and leaf bags, 55 gallon size, may be
used inside the cloth bags. Be sure to leave enough
plastic bag hanging over the frame so the plastic bag
can be twist tied before emptying.
Figure 16
Hood
Inlet
Draw Latches
Upper Frame Assembly
Bags With Bag Rings Installed
Lower Frame Assembly
9
SECTION III
OPERATING INSTRUCTIONS
WARNING: To determine when the collection bags
are full, follow the following steps:
3-1 General Safety
Only qualified people familiar with this operator’s
manual and the mower’s operator’s manual should
operate this machine.
A.
B.
C.
D.
E.
Stop the forward movement of the mower.
Disengage the mower deck.
Disengage the blower.
Engage the parking brake.
Once the parking brake has been engaged, and
only then, walk behind the mower and check the
collection bags by lifting the hood.The load
in the bags should not exceed the height of the
installed bags.
F. To release bags from the frame, lift the bag ring
from the tab on the bagger frame, slide the bag
out and turn the bag over to deposit the clippings.
G. Follow steps on page 9 to re-attach the bags
to the bagger.
3-2 Operation And Tips On Mowing
A. Perform BEFORE EACH USE maintenance list
in paragraph 4-1.
B. Start mower engine.
C. While seated in the operator’s seat, rotate the
engagement handle of the collection system
away from the mower. Continue to rotate the
handle until it stops in an over center position.
With the blower engaged, you can proceed to
operate the control levers of the mower.
D. With the mower engine at high rpm, engage the
mower deck.
NOTE: Do not allow collection bags to become over
filled as potential damage may occur to your equipment. Also, be sure to clean the hood screen as
needed.
NOTE: If the collection system does not appear to
be collecting the grass clippings, disengage the deck
and blower, then engage the parking brake and turn
the engine off. proceed to Section 3-3 and review
Section 2-6 in this manual.
SECTION IV
MAINTENANCE
To obtain the maximum effectiveness from your collection system the tips listed below should be
followed:
*
*
*
*
*
*
4-1 Maintenance Checklist
Before each use:
1. Check blades and spindles to be sure that no foreign 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 damaged shields.
4. Perform lubrication per paragraph 4-2.
5. Listen for abnormal sounds, which might indicate
loose parts, damaged bearings, or other damage.
Correct any deficiency before continuing operation.
6. With the engine off, engage the blower assembly.
Check the belt tension and inspect the pulley belt
for cracks or tears.
7. Check for wear or deterioration of the upper or
lower hoses and the bags.. If there are any portions of the hoses or bags that have been torn or
worn through, replace with genuine BUSH HOG parts.
Watch your speed - Normal conditions will allow
a speed of up to approximately 5 mph, but thick,
heavy damp conditions will require reduced
ground speed.
Mow with sharp blades - A sharp blade cuts
cleaner.
Wet grass and leaves will decrease effectiveness and will increase horsepower requirements.
Mow at higher cutting heights - Remove and
mulch no more than 2” of grass length with each
mowing. (Experts recommend not cutting off
more than 1/3 of the grass blade length at any
given time.)
Mow twice, at different height settings, (high,
then low), if grass is extra tall.
Remember that horsepower requirements will
vary with the mowing conditions such as type
and height of turf grass, moisture content,
amount of leaves, whether the terrain is flat or
hilly, etc.
3-3 Disengagement Of The Blower
After Each Use:
A. To disengage the blower, rotate the engagement handle towards the mower.
1.
10
Clean all debris from machine especially from the
bags, underneath the belt shields and off of
safety decals. Replace any missing or illegible decals.
2.
3.
Inspect the unit for worn or damaged components. 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.
Check belt for proper tension.
2.
3.
4-2 Lubrication
4.
NOTE: Use only white lithium base grease for lubrication of the shaft on the blower assembly.
5.
1.
2.
3.
On the initial use: Grease the fitting on the blower shaft.
Every 25 hours of use: Re-grease the grease fitting.
Every 200 hours of use: Check oil levels in gear
box. Oil in gear box should cover the gears. If
not, fill using an EP90 weight oil. 6 oz. will fill
the gear box from empty.
Parts And Service Information
Bush Hog collection system owners should record
the name and telephone number of their dealer.
Your dealer will be happy to supply replacement
parts, accessories and do any service or repairs to
your collection system. If for any reason your dealer
is unable to service your collection system or supply
replacement parts, contact Bush Hog and include
the following information from the serial number
plate:
Removal Of The Collection System For
Non-Collection Mowing
If it is decided that a particular mowing area does not
require that the grass clippings be collected, most of
the collection system may be removed while allowing
the lower frame weldment, PTO mounting bracket,
and the engine pulley to remain on the ZT.
(Refer to instructions and photographs on pages 5-8)
1.
Remove the hair pin clip and rod from the boot.
After disconnecting the boot from the deck,
store the pin and clip in the lugs on the boot for
safe keeping. NOTE: The original grass
chute must be re-installed on the deck
before operating the ZT.
Loosen the upper hose clamp from the hood
inlet and slide the hose free from the inlet.
Remove the hair pin clip and pin from the PTO
assembly and pull the assembly up and out of
the mounting slots. Replace the pin and clip in
the PTO assembly for safe keeping.
Remove the hair pin clip and pin that secures
the top frame to the lower frame and lift the top
frame and bags from the ZT. Store the hair pin
clip and pin in the top frame.
Model Number_______________
Serial Number_______________
Loosen the belt tension adjustment bolt to allow
removal of the drive belt from the engine pulley.
11
SAFETY DECALS
To promote safe operation, Bush Hog supplies safety decals on all products manufactured. Because damage
can occur to safety decals either through shipment, use or reconditioning, Bush Hog will, upon request, provide
safety decals for any of our products in the field at no charge. Contact your authorized Bush Hog dealer for
more information.
50031304
50031301
50031302
50031303
50052916
50052915
12
TORQUE SPECIFICATIONS
Proper toque for American fasteners used on Bush Hog equipment.
Recommended Torque in Foot Pounds (Newton Meters).*
AMERICAN
Bolt Head Markings
SAE Grade 2
(No Dashes)
SAE Grade 5
(3 Dashes)
”
lt
Bo ter “B
e
m
Dia
Wrench
Size “A”
SAE Grade 8
(6 Dashes)
METRIC
Wrench
Size “A”
WRENCH
SIZE (IN.) “A”
BOLT DIAMETER
(IN.) “B” AND
THREAD SIZE
SAE
GRADE 2
SAE
GRADE 5
SAE
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)
”
lt
Bo ter “B
e
m
Dia
8.8
Numbers appearing on bolt heads
indicate ASTM class.
*Use 75% of the specified torque value for plated
fasteners. Use 85% of the specified torque
values for lubricated fasteners.
Proper torque for metric fasteners used on Bush Hog equipment.
Recommended torque in foot pounds (newton Meters).*
WRENCH
SIZE
(mm) “A”
BOLT
DIA.
(mm) “B”
ASTM
4.6
8
5
1.8 (2.4)
5.1 (6.9)
6.5 (8.8)
10
6
3 (4)
8.7 (12)
11.1 (15)
27 (37)
ASTM
8.8
ASTM
9.8
ASTM
10.9
13
8
7.3 (10)
21.1 (29)
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
41
27
46
30
13
211 (286)
418 (566)
563 (763)
778 (1054)
821 (1112)
1138 (1542)
1119 (1516)
1547 (2096)
P.O. Box 1039 ● Selma, AL 36702-1039
Telephone (334) 874-2700 ● www.bushhog.com