Gravely Lawn Mower 785006 User Guide

30-Inch Rotary Mower  
Owner/Operator & Parts Manual  
Model  
785006 - Short Mower Drive Kit  
785007 - Long Mower Drive Kit  
885001 - 30-Inch Mower Deck  
08699300 9/06  
Printed in USA  
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NOTE: To locate your nearest Gravely Dealer, go to  
3. Review control functions and operation of the unit.  
Do not operate unit unless all controls function as  
described in this manual.  
WARNING: Improper assembly or adjustments  
can cause serious injury.  
4. Review recommended lubrication, maintenance  
and adjustments.  
5. Fill out a Product Registration Card and return the  
card to the Ariens Company or go to  
2. Understand all Safety Precautions provided in the  
manuals.  
SAFETY  
SAFETY ALERTS  
REQUIRED OPERATOR TRAINING  
Look for these symbols to point out  
important safety precautions. They mean:  
Original purchaser of this unit was instructed by the seller  
on safe and proper operation. If unit is to be used by  
someone other than original purchaser; loaned, rented or  
sold, ALWAYS provide this manual and any needed  
safety training before operation.  
Attention!  
Personal Safety Is Involved!  
Become Alert!  
SAFETY DECALS AND LOCATIONS  
ALWAYS replace missing or damaged safety decals.  
Refer to figure 1 for safety decal locations.  
Obey The Message!  
The safety alert symbols above and signal words below  
are used on decals and in this manual.  
Read and understand all safety messages.  
1
D
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R
/PELIGRO  
DANGER: IMMINENTLY HAZARDOUS  
SITUATION! If not avoided, WILL RESULT in  
death or serious injury.  
07731400D  
WARNING: POTENTIALLY HAZARDOUS  
SITUATION! If not avoided, COULD RESULT in  
death or serious injury.  
CAUTION: POTENTIALLY HAZARDOUS  
SITUATION! If not avoided, MAY RESULT in  
minor or moderate injury. It may also be used to  
alert against unsafe practices.  
1
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NOTATIONS  
NOTE: General reference information for proper  
2
Figure 2  
operation and maintenance practices.  
IMPORTANT: Specific procedures or information  
required to prevent damage to unit or attachment.  
PRACTICES AND LAWS  
Practice usual and customary safe working precautions,  
for the benefit of yourself and others. Understand and  
follow all safety messages. Be alert to unsafe conditions  
and the possibility of minor, moderate, or serious injury or  
death. Learn applicable rules and laws in your area.  
Always follow the practices set forth in this manual.  
3
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ALWAYS be sure of your footing. Keep a firm hold on  
handlebar. Walk, NEVER run.  
1. DANGER!  
Always keep feet and hands away from  
DO NOT operate on wet grass.  
rotating parts.  
Dust, smoke, fog, etc. can reduce vision and cause an  
accident. Operate unit only when there is good visibility  
and light.  
OL1809  
OL1810  
OL18111  
Always stand clear of discharge area. Do not  
direct discharge toward other people.  
Read the entire Owner/Operator manual and other  
training material. If the operator or the mechanic cannot  
read the manual, it is the owner’s responsibility to explain  
it to them. Only the user can prevent and is responsible  
for accidents or injuries occurring to themselves, other  
people or property.  
Keep people away from unit while operating.  
Only trained adults may operate or service unit  
Training includes actual operation  
Shut off engine, remove key, and read manual  
before you adjust or repair unit.  
OL1812  
OL1813  
NEVER allow children to operate or play on or near unit.  
Be alert and shut off unit if children enter area.  
Never carry passengers.  
NO STEP! Always keep feet away from  
rotating parts.  
NEVER operate unit after or during the use of  
medication, drugs or alcohol. Safe operation requires  
your complete and unimpaired attention at all times.  
2. WARNING!  
Always stand clear of discharge area.  
NEVER allow anyone to operate this unit when their  
alertness or coordination is impaired.  
OL1814  
Wear adequate safety gear, protective gloves and  
footwear.  
Do not operate mower unless bagger is  
attached or guards are in operating position.  
NEVER wear open sandals or canvas shoes during  
operation.  
OL1815  
Protect eyes, face and head from objects that may be  
thrown from unit. Wear appropriate hearing protection.  
SAFETY RULES  
Sharp edges can cut. Moving parts can cut off fingers or  
a hand. Wrap mower blade(s), wear sturdy gloves and  
use extreme caution when servicing. On multi-blade  
mowers, rotation of one mower blade will cause all  
mower blades to rotate.  
Read, understand and follow all safety practices in  
Owner/Operator Manual before beginning assembly.  
Failure to follow instructions could result in personal  
injury and/or damage to unit.  
ALWAYS remove key (if equipped) and disconnect wire  
from spark plug before assembly. Unintentional engine  
start up can cause death or serious injury.  
ALWAYS keep hands and feet away from all rotating  
parts during operation. Rotating parts can cut off body  
parts.  
Complete a walk around inspection of unit and work area  
to understand:  
ALWAYS keep hands away from all pinch points.  
DO NOT touch unit parts which might be hot from  
operation. Allow parts to cool before attempting to  
maintain, adjust or service.  
Work area  
Your unit  
All safety decals  
NEVER place your hands or any part of your body or  
clothing inside or near any moving part while unit is  
running.  
ALWAYS check overhead and side clearances carefully  
before operation.  
ALWAYS be aware of traffic when operating along streets  
or curbs.  
DO NOT wear loose clothing or jewelry. Tie back hair that  
may get caught in rotating parts.  
Keep children and people away.  
Keep children and people away from unit during  
operation.  
Keep children out of work area and under watchful care  
of a responsible adult.  
Fumes from engine exhaust can cause injury or death.  
Keep area of operation clear of all toys, pets, and debris.  
Thrown objects can cause injury.  
DO NOT run engine in an enclosed area. Always provide  
good ventilation.  
Check for weak spots on docks, ramps or floors. Avoid  
uneven work areas and rough terrain.  
4
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Thrown objects can cause injury and property damage.  
DO NOT point discharge at anyone or discharge directly  
onto paved or gravel surfaces.  
ALWAYS disengage PTO, stop unit and engine, remove  
key and allow moving parts to stop before clearing clogs  
or cleaning unit.  
Always stand clear of the discharge area when operating  
this unit.  
Never leave a running unit unattended. ALWAYS shut off  
engine before leaving unit.  
Read, understand, and follow all instructions in the  
ALWAYS remove key to prevent unauthorized use.  
manual and on the machine before starting. Understand:  
DO NOT operate in reverse unless absolutely necessary.  
ALWAYS backup slowly. ALWAYS look down and behind,  
before and while backing.  
How to operate all controls  
The functions of all controls  
How to STOP in an Emergency  
Braking and steering characteristics  
Turning radius and clearance  
DO NOT operate on steep slopes. DO NOT operate on  
slopes of more than 10°. Operate across the face of  
slopes, not up and down.  
Turf conditions can affect the unit’s stability.  
ALWAYS keep protective structures, guards, and panels  
in good repair, in place and securely fastened.  
Keep all movement on slopes slow and gradual. DO NOT  
make sudden changes in speed or direction. Use a slow  
speed to avoid stopping or shifting on slopes. Avoid  
starting or stopping on a slope.  
NEVER modify or remove safety devices.  
ALWAYS keep discharge cover or complete grass  
catcher in place and in proper working condition.  
DO NOT park unit on a slope unless absolutely  
necessary. When parking on a slope always engage  
parking brake and block wheels.  
Check steering control operation frequently. Adjust and  
service as required.  
DO NOT park unit on a slope unless absolutely  
necessary. When parking on a slope always chock or  
block wheels.  
Safety Interlock System must function properly. DO NOT  
operate unit if operator presence control is damaged or  
disabled.  
Use extra care when loading or unloading unit onto trailer  
or truck.  
If you strike an object, or if equipment vibrates  
abnormally, stop engine at once, disengage PTO, wait for  
all moving parts to stop, and remove key. Check for any  
damage or loose parts. Repair before restart.  
Secure unit chassis to transport vehicle. NEVER secure  
from rods or linkages that could be damaged.  
Before starting engine: disengage PTO, engage parking  
brake and place unit in neutral.  
DO NOT transport machine while engine is running.  
Keep unit free of grass, leaves, or other debris. Clean up  
oil or fuel spills.  
Before starting engine: disengage PTO and place unit in  
neutral.  
This product is equipped with an internal combustion  
engine. DO NOT use on or near any unimproved, forest  
covered or brush covered land unless the exhaust  
system is equipped with a spark arrester meeting  
applicable local, state or federal laws. A spark arrester, if  
used, must be maintained in effective working order by  
the operator.  
DO NOT operate at too fast a rate. DO NOT change  
engine governor settings or over-speed engine. Slow  
down and turn corners slowly.  
Disengage PTO when attachment is not in use. DO NOT  
raise deck with mower blades running. ALWAYS turn off  
power to attachment when travelling, crossing driveways,  
etc.  
Fuel is highly flammable and its vapors are explosive.  
Handle with care. Use an approved fuel container.  
Avoid uneven and rough terrain. DO NOT operate near  
drop-offs, ditches, or embankments. Unit can suddenly  
turn over if a wheel is over the edge of a cliff or ditch, or if  
an edge caves in.  
No smoking, No sparks, No flames. ALWAYS allow  
engine to cool before servicing.  
NEVER fill fuel tank when engine is running or hot from  
operation.  
DO NOT try to stabilize unit by putting foot on ground  
when operating with applicable riding attachments.  
NEVER fill or drain fuel tank indoors.  
When engine is running and speed control lever is  
forward, holding only one steering lever will cause unit to  
circle around one drive wheel.  
Replace fuel cap securely and clean up spilled fuel.  
Never fill containers inside a vehicle or on a truck or  
trailer bed with a plastic liner. Always place containers on  
the ground away from your vehicle before filling.  
Use care when approaching blind corners, shrubs, trees  
or other objects that may obscure view.  
When practical, remove gas-powered equipment from  
the truck or trailer and refuel it on the ground. If this is not  
possible, then refuel such equipment on a trailer with a  
portable container, rather than from a gasoline dispenser  
nozzle.  
ALWAYS disengage PTO, stop unit and engine, set  
parking brake, remove key and allow moving parts to  
stop before clearing clogs or cleaning unit.  
5
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Keep the nozzle in contact with the rim of the fuel tank or  
container opening at all times until fueling is complete.  
Do not use a nozzle lock-open device.  
Before making any inspections, repairs, etc.: disengage  
PTO, stop unit and engine, remove key, allow moving  
parts to stop.  
If fuel is spilled on clothing, change clothing immediately.  
ALWAYS keep body and hands away from pin holes or  
nozzles which eject hydraulic fluid under pressure.  
NEVER store fuel inside where there is an open flame,  
such as a water heater.  
Allow hot parts to cool.  
Avoid Electric Shock. Objects contacting both battery  
terminals at the same time may result in injury and unit  
damage. DO NOT reverse battery connections.  
ALWAYS block wheels, engage parking brake and know  
all jack stands are strong, secure and will hold weight of  
unit during maintenance.  
Reverse connections may result in sparks which can  
cause serious injury. Always connect positive (+) lead of  
charger to positive (+) terminal, and negative (-) lead to  
negative (-) terminal.  
An extension spring, when extended, stores energy and  
can be dangerous. Always use tools specifically  
designed for installing or removing an extension spring.  
Always compress or extend springs slowly.  
ALWAYS disconnect negative (-) cable FIRST and  
positive (+) cable SECOND. ALWAYS connect positive  
(+) cable FIRST, and negative (-) cable SECOND.  
ALWAYS maintain unit in safe operating condition.  
Damaged or worn out muffler can cause fire or explosion.  
Keep hardware, especially mower blade attachment  
bolts, tight.  
Explosive Gases from battery can cause death or serious  
injury. Poisonous battery fluid contains sulfuric acid and  
its contact with skin, eyes or clothing can cause severe  
chemical burns.  
Maintain or replace safety and instruction labels, as  
necessary.  
For unit storage or extended storage:  
No flames, No sparks, No smoking near battery.  
NEVER store with fuel in fuel tank, inside a building  
where any ignition sources are present.  
ALWAYS wear safety glasses and protective gear near  
battery. Use insulated tools.  
Allow engine to cool completely.  
DO NOT TIP battery beyond a 45° angle in any direction.  
Use only attachments or accessories designed for your  
unit and that can be used safely on your terrain.  
Battery posts, terminals and related accessories contain  
lead and lead compounds, chemicals known to the State  
of California to cause cancer and reproductive harm.  
Wash hands after handling.  
Check attachment components frequently for wear,  
damage or deterioration. Replace with manufacturer’s  
recommended parts for safety.  
Reverse connections may cause sparks which may result  
in injury. ALWAYS connect/disconnect cables in proper  
order.  
To reduce fire hazard and overheating, keep equipment  
free of grass, leaves, debris or excessive lubricants.  
Use extra care with grass catchers and other  
attachments. These can change the stability of the unit.  
Use only approved hitch points.  
Poisonous battery fluid contains sulfuric acid and its  
contact with skin, eyes, or clothing can cause severe  
burns.  
ALWAYS be aware of attachments when turning.  
ALWAYS allow adequate clearance between  
attachments, personnel, and other objects.  
Explosive Gases! No flames, No sparks, No smoking  
near battery.  
ALWAYS wear safety glasses and protective gear near  
battery.  
ALWAYS keep batteries out of reach of children.  
Before making any inspections, repairs, etc.: disengage  
PTO, stop unit and engine, set parking brake, remove  
key, allow moving parts to stop.  
6
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ASSEMBLY  
additional information about adjusting mower height  
using additional spacers.  
WARNING: AVOID INJURY. Read and  
understand the entire Safety section before  
proceeding.  
WARNING: A minimum of one 1/4” (6.4 mm)  
spacer must always be located between the  
mower blades and the locknut.  
INSTALLING THE DRIVE UNIT TO THE  
MOWER DECK FOR RAPID UNITS  
The locknut to the mower shaft must be  
tightened to a torque of 100 lbf-ft (135 N•m).  
NOTE: The long mower drive kit (78500700) must be  
installed onto the mower deck before the mower is  
connected to Rapid Units.  
3. Install mower blade(s) onto shaft. If two mower  
blades are used, they should be installed at right  
angles to each other with one 1/8” spacer located  
between mower blades. See figure 9 on page 11 for  
an illustration on how to install the mower blade.  
IMPORTANT: Only use the long mower drive kit  
(78500700) to attach the 30-inch mower to Rapid units.  
Install Long Mower Drive Kit (78500700)  
1. Place the drive kit down through the circular  
opening in the top of the mower deck.  
4. Install the locknut to the mower shaft and tighten it  
to a torque of 100 lbf-ft (135 N•m).  
2. Install drive kit (78500700) on mower deck and  
seven counterweights (p/n 08691200) with five 1/2”  
x 3-1/4” hex bolts (p/n 05960000), flat washers (p/n  
06442000), and 1/2” locknuts (p/n 06540600).  
INSTALLING THE DRIVE UNIT TO THE  
MOWER DECK FOR GEAR TWO-WHEEL  
TRACTORS  
NOTE: Depending on the type of gear two-wheel tractor,  
the long mower drive Kit (78500700) or the short mower  
drive kit (78500600) must be installed onto the mower  
deck before the mower is connected to the gear  
two-wheel tractor.  
2
4
1
Install Drive Kit (Figure 4)  
1. Place the drive unit down through the circular  
opening in the top of the mower deck.  
2. Install drive kit on mower deck and one  
counterweight (p/n 08691200) with five 1/2” x 1-3/4”  
hex bolts (p/n 05970600), flat washers (p/n  
06442000), and 1/2” locknuts (p/n 06540600).  
3
additional information about adjusting mower height  
using additional spacers.  
5
6
WARNING: A minimum of one 1/4” (6.4 mm)  
spacer must always be located between the  
mower blades and the locknut.  
1. Mower Deck  
2. Drive Kit (78500700)  
3. Counterweight  
4. 1/2” Locknut  
5. flat washer  
6. 1/2” x 3-1/4” Hex Bolt  
The locknut to the mower shaft must be  
tightened to a torque of 100 lbf-ft (135 N•m).  
3. Install mower blade(s) onto shaft. If two mower  
blades are used, they should be installed at right  
angles to each other with one 1/8” spacer located  
between mower blades. See figure 9 on page 11 for  
an illustration on how to install the mower blade.  
Figure 3  
OHh0480  
WARNING: Mower blades are sharp and can  
cut. Wrap mower blade(s) or wear gloves to  
service.  
7
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4. Install the locknut to the mower shaft and tighten it  
to a torque of 100 lbf-ft (135 N•m).  
NOTE: The Rapid two-wheel tractor adapter (kit  
78510700) is required to attach the 30-inch mower deck  
to Rapid units.  
IMPORTANT: Remove coupler sleeve (p/n 035035) from  
drive kit. Rapid units must use coupler leave, part  
number 08691300, from kit 78510700.  
2
4
1
3. Install Rapid two-wheel tractor adapter to drive kit  
with four quick-hitch studs (p/n 08531300), coupler  
sleeve (p/n 08691300), and eight 1/2” center  
locknuts (figure 6).  
5
3
6
4. Install 30-inch mower deck to the Rapid unit.  
IMPORTANT: MAKE SURE the attachment locking pin is  
completely seated prior to engaging the PTO (see rapid  
owner’s manual).  
1. Mower Deck  
2. Drive kit  
3. /Counterweight  
4. 1/2” Locknut  
5. Washer  
6. 1/2” x 1-3/4” Hex Bolt  
1
4
3
Figure 4  
OHh0480  
2
INSTALLING AND REMOVING THE MOWER  
DECK ON RAPID UNITS  
1
WARNING: ROTATING PARTS can cut off  
body parts. Keep hands and feet away. Loose  
clothing, long hair or scarves can get caught in  
rotating parts and cause death or serious injury.  
1
2
Installation  
1
1. Stop engine, remove ignition key, and wait for all  
moving parts to stop.  
2. Install 1/4” x 1/2” hex bolt (p/n 05947900) and 1/4”  
locknut (p/n 06529700) as shown in figure 5.  
1. 1/2” Center Locknut  
2. Quick-Hitch Stud  
3. Coupler Sleeve (Part Number 08691300, from kit  
78510700)  
4. Rapid Two-Wheel Tractor Adapter (kit # 78510700)  
Figure 6  
Removal  
1. Stop engine, remove ignition key, and wait for all  
moving parts to stop.  
2. Remove 30-Inch mower deck from the Rapid unit.  
3. Remove Rapid two-wheel tractor adapter from  
30-inch mower deck.  
1 & 2  
1. 1/4” x 1/2” Hex Bolt  
2. 1/4” Locknut  
Figure 5  
8
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INSTALLING AND REMOVING THE MOWER  
DECK ON GEAR TWO-WHEEL TRACTORS  
5
1
WARNING: ROTATING PARTS can cut off  
body parts. Keep hands and feet away. Loose  
clothing, long hair or scarves can get caught in  
rotating parts and cause death or serious injury.  
2
3
4
Installation  
1. Stop engine, remove ignition key, and wait for all  
moving parts to stop.  
2. Put the splined coupling onto the splined shaft of  
the mower deck drive unit (figure 7).  
1. Tractor Power Take-Off Unit  
2. Power Take-Off Shaft  
3. Coupling  
4. 1/2” x 1-34” Bolt Hex  
5. 1/2” locknut  
3. Fasten the mower deck drive housing to the tractor  
PTO unit using two locknuts (upper) and two bolts  
(lower).  
Figure 7  
OHh450  
Removal  
1. Stop engine, remove ignition key, and wait for all  
moving parts to stop.  
2. Lower the tractor stand and tighten the adjusting  
handle.  
3. Remove the two locknuts and two bolts that fasten  
the mower deck to the tractor (figure 7).  
4. Pull the mower from the tractor.  
5. Put the coupling on the splined shaft of the mower.  
OPERATION  
6. See if the mower is cutting at the correct height. If  
height requires adjustment, see Mower Height  
WARNING: AVOID INJURY. Read and  
understand the entire Safety section before  
proceeding.  
7. If the mower does not follow the ground correctly,  
Read this owner’s manual and the power unit’s owner’s  
manual before operating the mower.  
8. When the mower is properly adjusted, resume  
mowing. Select a slow speed at first, and then  
select a speed that is best for your experience and  
mowing conditions.  
WARNING: Use a slow tractor speed until you  
know how to operate the mower.  
1. Start the engine. Wait until the engine is running  
smoothly before operating.  
2. Engage the PTO.  
3. Move the throttle lever to fast.  
4. Select a slow ground speed  
5. Mow approximately ten feet (3m). Turn off the PTO  
and shut off the engine.  
9
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MAINTENANCE  
IMPORTANT: Gravely recommends having mower  
blades sharpened by a professional. Contact your  
Gravely dealer.  
WARNING: AVOID INJURY. Read and  
understand the entire Safety section before  
proceeding.  
Discard mower blade if (figure 8):  
more than 1/2 in. (1.27 cm) of metal is removed.  
the air lift erosion area is eroded.  
Gravely Dealers will provide any service or adjustments  
which may be required to keep your unit operating at  
peak efficiency.  
the mower blade is bent or broken.  
Do not change angle of cutting edge or round the corner  
at the end of mower blade.  
The chart below shows the recommended maintenance  
schedule that should be performed on a regular basis.  
More frequent service may be required due to working  
conditions (heavy loads, high ambient temperatures,  
dusty conditions, or airborne debris).  
2. Sharpen mower blade by removing an equal  
amount of material from each end of mower blade.  
3. Check mower blade balance by sliding mower  
blade on an unthreaded bolt. If blade is balanced, it  
should remain in a horizontal position. If either end  
of mower blade moves downward, sharpen the  
heavy end until mower blade is balanced.  
See engine and power unit owner’s manuals for further  
maintenance and trouble shooting information.  
4. Install mower blade and spacers, tighten the  
locknut to 100 lbf-ft. (135 N•m) torque.  
MAINTENANCE SCHEDULE  
Every  
40 hrs.  
Daily  
Yearly  
Service Performed  
Check Mower Blade  
General Lubrication  
Check Fasteners  
DO NOT Sharpen to this Pattern  
WARNING: ROTATING PARTS can cut off  
body parts. Keep hands and feet away. Loose  
clothing, long hair or scarves can get caught in  
rotating parts and cause death or serious injury.  
Sharpen to this Pattern  
WARNING: Stop engine, wait for moving parts  
to stop, remove key, and remove wire from  
spark plug before attempting any lubrication or  
maintenance procedures.  
DISCARD if  
more than 1/2  
in. (1.27 cm)  
CAUTION: DO NOT touch engine parts which  
are hot from operation. Allow such parts to cool  
before servicing.  
1
2
1. Air Lift Erosion  
Area  
2. Cutting Edge  
SHARPENING MOWER BLADE  
Figure 8  
CAUTION: DO NOT sharpen mower blade  
while on unit. An unbalanced mower blade will  
cause excessive vibration and eventual damage  
to unit. Check mower blade balance prior to  
reinstalling mower blades.  
LUBRICATION  
NOTE: The 30-inch mower does not require any  
lubrication.  
IMPORTANT: Prior to apply grease thoroughly clean all  
NEVER weld or straighten mower blades.  
components.  
Apply grease to the lube fittings on the drive kit until it  
shows at the mower shaft under the mower deck and at  
the swivel adjustment (figure 9).  
1. Remove mower blade.  
10  
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1
1
1
2
4
2
3
5
1. Mower Deck  
2. Spacer 1/4” (6.4mm)  
3. Spacer .12” (3.2mm)  
4. Mower Blade  
5. Lock Nut  
2
1. Lubrication Fitting  
2. Swivel Adjustment  
Figure 9  
OHh0410  
Figure 9  
1. To lower mowing height, add required number of 1/4”  
(6.4 mm) spacers above mower blades.  
ADJUSTMENTS  
2. To raise mowing height, remove required number of  
1/4” (6.4 mm) spacers from above mower blades.  
Mower Height Adjustment  
3. Reinstall the lock nut to the mower shaft and tighten  
it to a torque of 100 lbf-ft (135 N•m).  
DANGER: To avoid inadvertent blade contact,  
NEVER attempt to make any cutting height  
adjustment while engine is running.  
WARNING: The lock nut to mower shaft must  
be tightened to a torque of 100 lbf-ft (135 N•m).  
All adjustments to the mower height are made by moving  
1/4” (6.4 mm) spacers from one side of the mower blade  
to the other to raise or lower the mowing height by 1/4”  
(6.4 mm). There are a total of six 1/4” (6.4 mm) spacers  
included for a single mower blade. There are a total of  
five 1/4” (6.4 mm) spacers and one 1/8” (3.2 mm) spacer  
for a twin mower blade. All the spacers must be used  
either above or below the mower blade(s).  
Swivel Adjustment  
The swivel adjustment allows mower deck to follow  
ground during mowing. The swivel is properly adjusted  
when mower deck will not swivel when raised by pushing  
down on the handlebars, but will follow ground during  
mowing.  
WARNING: A minimum of one 1/4” (6.4 mm)  
spacer must always be located between the  
mower blades and the locknut.  
To adjust mower height:  
1. Stop engine, remove ignition key, and wait for all  
moving parts to stop.  
2. Turn the mower deck over and block the mower  
blade so it cannot move.  
WARNING: Mower blades are sharp and can  
cut. Wrap mower blade(s) or wear gloves to  
service.  
1
1. Swivel Adjustment  
3. Turn the locknut on the mower shaft  
counterclockwise to remove. Retain all hardware  
(figure 9).  
Figure 10  
OHh0420  
To adjust swivel:  
1. Stop engine, remove ignition key, and wait for all  
moving parts to stop.  
11  
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2. Turn nut on swivel adjustment clockwise to tighten  
adjustment, and counterclockwise to loosen swivel  
(figure 10).  
Keep all nuts, bolts and screws tight and know unit is in  
safe working condition. Check all hardware at regular  
intervals  
3. Retest swivel adjustment and repeat as necessary.  
Inspection  
Inspect mower for visible signs of wear, breakage or  
damage. Order any parts required and make necessary  
repairs to avoid delays when beginning use again.  
STORAGE  
WARNING: AVOID INJURY. Read and  
understand the entire Safety section before  
proceeding.  
Cleaning  
Clean unit thoroughly. Touch up all areas to prevent rust.  
Matching touch up paint is available from your GRAVELY  
Dealer. Store mower in a cool, dry protected location.  
IMPORTANT: Take steps to prevent rust and corrosion.  
Never spray unit with water or store unit outdoors. Water  
can seep into sealed bearings, which are sealed against  
dirt and debris only, causing reduced component life.  
SPECIFICATIONS  
Model Number  
Description  
78500600  
Short Mower Drive Kit Long Mower Drive Kit  
0001010 and up 000101 and up  
78500700  
88500100  
30-Inch Mower Deck  
000101 and up  
38 (96.52)  
Serial Number  
Length - in (cm)  
Height - in (cm)  
Width - in (cm)  
Weight - lbs (kg)  
Cutting Width - in (cm)  
NA  
NA  
NA  
NA  
NA  
NA  
8 (20.32)  
31.5 (80)  
83 (37.64)  
30” (76.20)  
Cutting Height - in  
(cm)  
1.5 (3.81) - 3 (7.62)  
12  
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This Page Intentionally Left Blank.  
13  
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PARTS LIST  
MOWER DECK (88500100)  
18  
D
AN  
GE  
R
/PELIGRO  
12  
15  
21  
07731400D  
20  
17  
L
ARGEUR D  
WI OF CU  
ANCHURA DEL TEO  
E
COUPE  
3
D
T
H
T
C
R
07852100A  
12  
19  
13  
W
A
RN  
I
N
m
G
/
A
r
V
E
R
T
I
SS  
E
M
E
N
T
/
A
D
V
E
R
T
E
N
CIA  
D
o
no  
t
op  
e
r
a
s
t
e
o
w
e
N
e
j
a
m
a
i
s
u
t
ili  
s
e
r
N
o
op  
e
r
a
r
s
e
g
a
do  
r
aa  
un  
l
e
ss gu  
a
r
d
a
r
e
i
n
l
a
tond  
t
e
u
s
e
s
a
n
s
m
e
t
no  
s
qu  
e
po  
l
a
s
c
d
on  
e
f
e
d
nsas  
e
op  
e
gg  
r
a
t
i
ng po  
s
i
t
i
on  
o
r
p
c
r
o
n
e
c
t
e
u
'
r
s
u
r
l
e
e
s
e
n
e
n
s
i
i
14  
4
b
a
e
r
i
s
a
tta  
c
h
e
d
.
a
a
s
l
d
e
j
e
c
t
i
on ouop  
e
r
a
c
i
on  
o
e
el  
sa  
n
l
e
b
a
c
m
on  
t.  
e
r
e
c
og  
e
do  
r
s
t
e
fijo.  
07742300B  
15  
15  
12  
15  
12  
12  
11  
13  
2
16  
1
13  
18  
D
A
NG  
E
R
/PELIGRO  
15  
9
07731400D  
12  
10  
9
7
22  
6
8
5
27  
28  
23  
Optional Twin Blades  
24  
26  
OHh0441  
25  
OHh0540  
14  
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MOWER DECK (88500100)  
Item Part No.  
Qty. Description  
1
2
3
4
5
021492  
021388  
010110  
06310500  
05970600  
05960000  
06442000  
021399  
2
1
1
4
6
6
6
1
1
2
1
1
14  
14  
4
10  
2
1
2
1
1
1
1
7
1
1
1
1
1
1
Skid-Rotary Mower  
Fender-Front 30” Mower  
Deck-Weldment 30 in.  
Washer-Lock .31  
Bolt, Hex .50-13 x 1.75 Grade 5  
Bolt, Hex .50-13 x 3.25 Grade 5 (On Rapid Units Only)  
Washer-Flat-Steel .563 x 1.38 x .109  
Bracket-Wheel L-H  
Ring-Retaining-External .625 x .042  
Washer-Flat-Stainless Steel .656 x 1.25 x .1  
Roller-Gage  
Weldment-Bracket  
Bolt-Hex .31-18 x 1.00 Grade 5  
Nut-Locking Nylon .31-18  
Bolt-Hex .31-24 x .625  
Washer, Flat .312 x .734 x .065  
Panel Skid  
Weldment-Rear Fender  
Decal, Mower Pan Head Danger  
Decal, Warning  
Decal, Width of Cut  
Decal, 30  
Counterweight, 30" Deck  
Counterweight, 30" Deck (On Rapid Units Only)  
Rotary Mower Blade .375”  
Spacer-Cutting Height .125  
Blade, 30” Mower-Thin  
Blade, 30” Mower-Thin, Cross Slot  
Bolt, Hex .25-20 x .50 Grade 5 (On Rapid Units Only)  
Nut, Locking, Center .25-20 (On Rapid Units Only)  
6
7
8
9
05708300  
06430300  
10 015351  
11 021400  
12 05946900  
13 06530200  
14 05936800  
15 06435800  
16 012855  
17 032448  
18 07731400  
19 07742300  
20 07852100  
21 05232900  
22 08691200  
08691200  
23 022526  
24 022527  
25 022529  
26 022530  
27 05947900  
28 06529700  
15  
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SHORT MOWER DRIVE KIT (78500600)  
12  
11  
3
17  
1
13  
7
18  
14  
19  
6
15  
6
16  
2
4
6
20  
5
21  
7
22  
8
23  
24  
9
10  
25  
26  
27  
28  
29  
30  
31  
31  
32  
OHh0460  
16  
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SHORT MOWER DRIVE KIT (78500600)  
Item Part No.  
Qty. Description  
1
2
3
4
5
6
7
8
9
032118  
032120  
032114  
07012600  
05960000  
06540600  
05970600  
032115  
1
1
1
1
1
9
3
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
6
1
Coupling  
Ring-Retaining External 2.25 x .078  
Casting-Swivel  
Fitting-Lube .25-28 x .256  
Bolt-Hex .50-13 x 3.25 Grade 5  
Nut-Lock Nylon .50-13  
Bolt-Hex .50-13 x 1.75 Grade 5  
Housing-Shaft  
032862  
Shim .005  
Shim .020  
10 032863  
11 022242  
12 014640  
13 032117  
14 08659700  
15 06442800  
16 0657700  
17 07012500  
18 144044  
19 032116  
20 06713400  
21 06523900  
22 08659800  
23 038199  
24 05714200  
25 022521  
26 022524  
27 022523  
28 022522  
29 271089  
30 022520  
31 022526  
32 017313  
Ring-Retaining: .937 Shaft  
Assembly-Bearing: 1.000 x 1.980 x 1.243  
Shaft-Drive  
Gear-Bevel  
Washer-Flat-Steel .656 x 1.31 x .095  
Nut-Lock .625-18 Hex Head Type N  
Fitting-Lube .125  
Bushing-Reducing Pipe .5  
Housing-Gear  
Pin-Cotter .094 x 1.25  
Nut-Hex .625-18 Slotted  
Pinion Bevel  
Assembly-Bearing Cup & Cone  
Ring-Retaining-Internal 2.210 x .062  
Bushing- 1.75 x 1.94 x 1.94, Steel  
Cup-Bearing 1.980 x .42  
Cone-Bearing 29 mm x .58  
Seal  
Key-Woodruff .13 x .38  
Shaft-Rotor  
Spacer-Cutting Height .25  
Nut-Lock .875-9 Heat Treated Thin  
17  
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LONG MOWER DRIVE KIT (78500700)  
2
3
14  
15  
1
5
10  
1
9
8
7
6
13  
4
6
20  
12  
19  
11  
21  
18  
5
17  
9
9
10  
10  
22  
23  
24  
25  
16  
26  
28  
27  
29  
29  
30  
OHh0510  
18  
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LONG MOWER DRIVE KIT (78500700)  
Item Part No.  
Qty. Description  
Nut-Locking-Nylon .50-13  
1
2
3
4
5
6
7
8
9
06540600  
07012500  
144044  
14  
1
1
1
1
1
1
1
3
1
2
1
3
1
1
1
1
1
1
1
Fitting-Lube .125  
Bushing-Reducing Pipe .5  
Housing-Gear  
Pin-Cotter .094 x 1.25  
Nut-Hex-Slotted .625-18  
Washer-Flat-Steel .656 x 1.31 x .095  
Gear-Bevel  
Cone-Roller Bearing  
Cup-Roller Bearing  
Shim .020  
Shim .005  
Casting-Swivel  
Bolt-Hex .50-13 x 1.75  
Bolt-Hex .50-13 x 3.25 Grade 5  
Housing-Shaft  
Washer-Flat-Steel 1.006 x 2.247 x .060  
Washer-Hardened-Thrust 1.00 x 1.55 x .03  
Shaft-Drive  
032116  
06713400  
06523900  
06442800  
08659700  
20035500  
10 20035400  
11 21511700  
12 032862  
13 08525400  
14 05936000  
15 05960000  
16 022515  
17 035034  
18 05421600  
19 035036  
20 035035  
Coupling (Rapid units must use coupler sleave, part number 08691300, from kit  
78510700.)  
21 051328  
22 022497  
23 022521  
24 022524  
25 022523  
26 022522  
27 271089  
28 022520  
29 022526  
30 017313  
1
1
1
1
1
1
1
1
6
1
Pinion-Bevel  
Ring-Retaining-Internal 2.210 x .062  
Bushing 1.75 x 1.94 x 1.94  
Bearing-Cup 1.980 x .420  
Bearing-Cone 29mm x .58  
Seal  
Key-Woodruff .13 x .38  
Shaft-Rotor  
Spacer-Cutting Height .25  
Nut-Locking .875-9  
19  
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AriensLimited  
Warranties  
2-Year Limited Lawn and Garden  
3-Year Limited Sno-Thro Warranty  
Consumer Warranty  
Ariens Company (Ariens) warrants to the original  
purchaser that Sno-Thro products manufactured by Ariens  
Company will be free from defects in material and  
workmanship for a period of three (3) years after the date of  
purchase, and will repair any defect in material or  
workmanship, and repair or replace any defective part,  
subject to the conditions, limitations and exclusions set forth  
herein. Such repair or replacement will be free of charge to  
the original purchaser (labor and parts), except as noted  
below.  
Ariens Company (Ariens) warrants to the original  
purchaser that Ariens and Gravely brand consumer  
products manufactured by Ariens Company will be free from  
defects in material and workmanship for a period of two (2)  
years after the date of purchase, and that Ariens will repair  
any defect in material or workmanship, and repair or replace  
any defective part, subject to the conditions, limitations and  
exclusions set forth herein. Such repair or replacement will  
be free of charge to the original purchaser (labor and  
parts), except as noted below.  
The three-year duration of this warranty applies only if the  
product is put to ordinary, reasonable, and usual personal,  
family, or household uses. If the product is put to any  
business, commercial, or industrial use, then the duration of  
this warranty is ninety (90) days after the date of purchase,  
or one (1) year after the date of purchase if the product is  
labeled as a Professional/Commercial Product. The duration  
of this warranty shall be ninety (90) days after the date of  
purchase if any product is rented or leased.  
The two-year duration of this warranty applies only if the  
product is put to ordinary, reasonable, and usual personal,  
family, or household uses. If the product is put to any  
business, commercial, or industrial use such as, but not  
limited to, commercial landscaping, mowing or snow  
removal services, or golf course or park maintenance, or  
agricultural or farmstead use, then the duration of this  
warranty is ninety (90) days after the date of purchase, or  
one (1) year after the date of purchase if the product is  
labeled as a Professional/Commercial Product. The duration  
of this warranty shall be ninety (90) days after the date of  
purchase if any product is rented or leased.  
DURA-CLEAN™ Auger Limited Lifetime  
Warranty  
Ariens Company (Ariens) warrants to the original  
purchaser that the rubber components of the  
DURA-CLEAN™ Auger manufactured by Ariens Company  
will be free from defects in material and workmanship and  
will not wear out for the life of the Sno-Thro, except as noted  
below.  
2-Year Limited Lawn and Garden  
Commercial Warranty  
The Ariens Company (Ariens) warrants to the original  
purchaser that all Gravely Pro and ProMaster products  
manufactured by Ariens will be free from defects in material  
and workmanship for a period of two (2) years after the date  
of purchase or 1000 hours of use, whichever comes first. An  
authorized Gravely dealer will repair any defect in material or  
workmanship, and repair or replace any defective part,  
subject to the conditions, limitations and exclusions set forth  
herein. Such repair or replacement will be free of charge to  
the original purchaser (labor and parts), except as noted  
below.  
Ariens Company will provide for the replacement of any of  
the rubber components of the DURA-CLEAN™ Auger found  
upon examination by the Ariens Company to be defective or  
worn out. Replacements will be supplied free of charge.  
Labor is not included after two (2) years from the date of  
purchase of the Sno-Thro.  
The lifetime limited warranty shall apply if the product is put  
to ordinary, reasonable, and usual personal household use.  
If the product is put to any business, commercial, industrial,  
rental, or leased use, the warranty shall be against defects in  
material and workmanship for ninety (90) days following the  
date of purchase.  
The duration of this warranty shall be ninety (90) days after  
the date of purchase or 1000 hours of use, whichever comes  
first, if any product is rented or leased.  
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Exceptions, Limitations, Exclusions  
These warranties are subject to the following conditions, limitations, and exclusions:  
To obtain warranty service, the following conditions must be The following items are excluded from this warranty:  
met:  
• Engines and engine accessories are covered only by  
• The purchaser must perform the maintenance and  
minor adjustments explained in the owner’s manual.  
the engine manufacturer’s warranty and are not covered  
by this warranty.  
• The purchaser must promptly notify Ariens Company or  
an authorized Ariens service representative of the need  
for warranty service.  
• Peerless gearboxes and/or transmissions are covered  
only by Peerless’ warranty and are not covered by this  
warranty.  
• The purchaser must transport the product to and from  
the place of warranty service.  
• Hydro-Gear transmissions and/or Hydro-Gear drive  
components are covered only by the Hydro-Gear  
warranty and are not covered by this warranty.  
• Warranty service must be performed by a respective  
Ariens or Gravely authorized service representative.  
• Parts that are not genuine Ariens or Gravely brand  
service parts are not covered by this warranty.  
To find an Ariens or Gravely authorized service  
representative, contact Ariens at:  
• Except as specifically warranted, normal maintenance,  
services, and normal replacement items, such as spark  
plugs, oil, oil filters, air filters, mufflers, belts, tires,  
shoes, runners, scraper blades, shear bolts, mower  
blades, mower vanes, headlights, light bulbs, knives,  
etc. are not covered by this warranty except as noted  
below.  
655 W. Ryan St., P.O. Box 157  
Brillion, WI 54110-0157  
(920) 756 - 2141  
• Mufflers, belts, and tires on consumer lawn and garden  
products are warranted to the original purchaser for  
two years.  
This warranty is subject to the following limitations:  
• Genuine Ariens or Gravely brand service parts and  
accessories not purchased with the product covered by  
this warranty, but which are later purchased and used  
with that product, are warranted to be free from defects  
in material and workmanship for a period of ninety (90)  
days after date of purchase, and Ariens Company will  
repair or replace any such part or accessory free of  
charge, except for labor, during that period.  
• Friction discs, idlers, cables, and electrical components  
on Sno-Thros put to usual personal household use are  
warranted to the original purchaser for two years.  
• Any defect which is the result of misuse, alteration,  
improper assembly, improper adjustment, neglect, or  
accident is not covered by this warranty.  
• Batteries are warranted only for a period of twelve (12)  
months after date of purchase, on a prorated basis. For  
the first ninety (90) days of the warranty period, a  
defective battery will be replaced free of charge. If the  
applicable warranty period is more than 90 days, Ariens  
Company will cover the prorated cost of any defective  
battery, for up to twelve (12) months after the date of  
purchase.  
• This warranty applies only to products purchased in the  
United States (including Puerto Rico) and Canada. In all  
other countries, contact place of purchase for warranty  
information.  
Ariens may from time to time change the design of its products. Nothing contained in this warranty shall be construed as  
obligating Ariens to incorporate such design changes into previously manufactured products, nor shall such changes be  
construed as an admission that previous designs were defective.  
LIMITATION OF REMEDY AND DAMAGES  
DISCLAIMER OF FURTHER WARRANTY  
Ariens Company’s liability under this warranty, and under  
any implied warranty that may exist, is limited to repair of  
any defect in workmanship, and repair or replacement of  
any defective part. Ariens Company shall not be liable for  
Ariens Company makes no warranty, express or  
implied, other than what is expressly made in this  
warranty. If the law of your state provides that an  
implied warranty of merchantability, or an implied  
incidental, special, or consequential damages (including lost warranty of fitness for particular purpose, or any other  
profits). Some states do not allow the exclusion of incidental implied warranty, applies to Ariens Company, then any  
or consequential damages, so the above limitation or  
exclusion may not apply to you.  
such implied warranty is limited to the duration of this  
warranty. Some states do not allow limitations on how  
long an implied warranty lasts, so the above limitation  
may not apply to you.  
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.  
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GRAVELY  
A Division of Ariens Company  
655 West Ryan Street  
P.O. Box 157  
Brillion, WI 54110-0157  
920-756-2141  
Fax 920-756-2407  
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