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603744_0911

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GENERAL INFORMATION

This manual applies to the following BigDog

®

 Mower lines:

BigDog

®

 Mowers A Series

To the new owner

The purpose of this manual is to assist owners and operators 

in maintaining and operating your BigDog

®

 Mower. Please read 

it carefully; information and instructions furnished can help you 
achieve years of dependable performance.

A separate Engine Owner’s Manual is included with your 

owner’s packet which contains additional engine information 
that will not be repeated in this manual. It is the owner’s 
responsibility to make certain that the operators and mechanics 
read and understand the engine owner’s manual before 
attempting to operate or repair the engine. 

The decals are designed to give the operator brief information 

needed in the daily operation and service of the machine. These 
decals are not intended to be used in place of this manual but 
instead are to be used as an extension of this manual. These 
decals should not be removed or obliterated. Replace these 
decals if they become unreadable. 

It is the 

owner’s responsibility

 to make certain that the 

operators and mechanics read and understand this manual and 
all decals before operating this machine. It is also the 

owner’s 

responsibility

 to make certain that the operators and mechanics 

are qualified and physically able individuals, properly trained in 
the operation of this equipment. All operators and mechanics 
must become familiar with the safe operation of the equipment, 
operator controls and decals.

IMPORTANT:  

The owner/user can prevent and is responsi-

ble for accidents or injuries occurring to themselves, other peo-
ple or property.

Never let children or untrained people operate or service the 

equipment. Local regulations may restrict the age of the 
operator.

For more detailed maintenance and adjustment information 

refer to the proper 

General Service Manual

 for your machine. 

Refer to the 

“Product Literature”

 section of this manual for 

information on how to attain these manuals.

Using this manual

General operation, adjustment and maintenance guidance is 

outlined for both the experienced and novice BigDog

®

 Mowers

user. Operating conditions vary considerably and cannot all be 
addressed individually. Through experience, however, operators 
should find no difficulty in developing good operating skills 
suitable to most conditions.

Directions used in this manual, for example RIGHT or LEFT, 

refer to directions when in operator position and facing forward, 
unless otherwise stated.

Photographs and illustrations used were current at the time of 

printing, but subsequent production changes may cause your 
machine to vary slightly in detail. BigDog

®

 Mowers reserves the 

right to redesign and change the machine as deemed necessary, 
without notification. If a change has been made to your machine 
which is not reflected in this operator’s manual, or the parts 
manual, see your BigDog

®

 Mowers dealer for current 

information and parts.

Warranty registration

Your BigDog

®

 Mowers Dealer must register the unit on-line 

within 

ten (10) days

 following date of purchase to validate your 

warranty protection. As the new equipment owner, you should 
confirm that your BigDog

®

 Mowers Dealer has registered your 

mower with BigDog

®

 Mowers.

Be sure to register the mower plus each attachment that 

displays a model and serial identification number plate with 
BigDog

®

 Mowers.

Any unauthorized modification, alteration, or use of non-

approved attachments voids the warranty and releases BigDog

®

Mowers from any liability arising from subsequent use of this 
equipment. Do not use or operate any attachment not approved 
by BigDog

®

 Mowers.

Model and serial number

Mower model and serial numbers are found on the serial 

identification plate, located on the left side of the mower’s 
frame (under the left steering control lever).

These numbers are required when the unit is registered with 

BigDog

®

 Mowers. They will also assure you of the correct 

service parts when replacement becomes necessary.

Parts and service

Use original BigDog

®

 Mower replacement parts only. These 

parts are available through your local BigDog

®

 Mower dealer. 

To obtain prompt, efficient service, always provide the 
following information when ordering parts:

1.

Correct part description.

2.

Correct part number.

3.

Correct model number.

4.

Correct serial number.

All warranty repair and service must be handled through an 

authorized BigDog

®

 Mower dealer. Arrangements should be 

made through your local service center.

Summary of Contents for BigDog

Page 1: ...603744_0911 BigDog Mowers A Series Operator s Manual P O Box 7000 Hesston Kansas 67062 2097...

Page 2: ...603744_0911...

Page 3: ...603744_0911 c 1 General Information 1 1 Safety Precautions 2 1 Operation 3 1 Maintenance Adjustments 4 1 Troubleshooting 5 1 Storage 6 1 Product Literature 6 2...

Page 4: ...c 2 603744_0911...

Page 5: ...Mowers user Operating conditions vary considerably and cannot all be addressed individually Through experience however operators should find no difficulty in developing good operating skills suitable...

Page 6: ...1 2 603744_0911...

Page 7: ...eadable It is the owner s responsibility to make certain that the operators and mechanics read and understand this manual and all decals before operating this mower It is also the owner s responsibili...

Page 8: ...trol will be lost Refer to owner s manual for inspection and replacement intervals and refer to above paragraph for emergency procedures 600899 Part Number 600899 If you loose steering control while o...

Page 9: ...RNING Read Operator s Manual and decals before attempting to operate this machine WARNING This structure s protective capability may be impaired by structural damage overturn or alteration If any of t...

Page 10: ...cking up Do not mow in reverse unless absolutely necessary Always look down and behind before and while backing up WARNING Roll over Slow down before turning Do not operate on slopes greater than 15 d...

Page 11: ...disengage switch E Ignition switch insert key F OFF G ON H Engine start position I Before starting the engine J Wear ear protection eye protection and safety shoes when operating this equipment K Read...

Page 12: ...2 6 603744_0911...

Page 13: ...r building 3 Fold the paper along the slope guide lines C D or E 4 Align the closest slope guide line with the ground slope This will give you a close estimation of the ground slope to be mowed Slope...

Page 14: ...2 8 603744_0911...

Page 15: ...s sneakers shorts or any type of loose fitting clothing Do not use a towel as a headband or neck wrap and do not hang towel from the waist Long hair loose clothing or jewelry may get tangled in moving...

Page 16: ...edge or to avoid the ground from breaking away This will reduce the risk of the mower suddenly rolling over causing serious injury or death Use a walk behind push mower or hand held trimmer on slopes...

Page 17: ...mower unattended with ignition key in switch especially with children present Children or bystanders may be injured if they move or attempt to operate the mower while it is unattended Always disengage...

Page 18: ...F 15 amp fuse Figure 3 1 Clutch Aux 15 amp blade type G Electronic hour meter Figure 3 1 registers 1 10 hour increments up to 9 999 9 total hours Connected to the ignition switch the meter records th...

Page 19: ...steering control levers are not in the park brake position park brake switches are disengaged or the deck clutch switch is engaged the engine will stop The following steps are the correct procedures...

Page 20: ...transporting When transporting on another vehicle the mower should be facing forward and it must be secured IMPORTANT Always make certain the two bypass valves are returned to their operating positio...

Page 21: ...he ROPS has been in some other type of accident such as hitting an overhead object during transport the ROPS must be replaced to retain the best protection Following an accident check the ROPS the ope...

Page 22: ...the rearward direction push forward gently on steering control levers and avoid sudden move ment Any sudden movement could cause the front of the mower to come off of the ground resulting in possible...

Page 23: ...ection of arrows indicate direction of mower movement N N N N N N N N N N Figure 3 8 Step 1 THREE POINT TURN Step 2 Step 3 R i g h t c o n t r o l l e v e r L e f t c o n t r o l l e v e r N e u t r a...

Page 24: ...mower blades Blade sharpness should be checked daily Never work with blades while engine is running or deck clutch switch is engaged on Always place deck clutch switch in the disengaged position plac...

Page 25: ...eight adjustment Deck height is adjustable in 1 4 64 cm increments The holes in the height adjusting bar are spaced at 1 2 1 2 cm intervals By turning the height adjusting stop around 1 4 64 cm increm...

Page 26: ...Stop handle Height adjusting stop Fig 3 12 Anti scalp wheel Adjusting holes Fig 3 13 3 12 603744_0911...

Page 27: ...nd deadly poison Never attempt to make any adjustments or repairs to the mower drive system mower deck or any attachment while the mower engine is running or deck clutch is engaged Repairs or maintena...

Page 28: ...tem is a 12 volt negative ground Recommended battery size is a garden tractor BCI group U1R with 225 or better cranking AMP rating A maintenance free battery is recommended Otherwise follow battery ma...

Page 29: ...peration or weekly whichever occurs first Check more often if system appears to be leaking or otherwise malfunctioning Fluid level should be at the Full Cold line on the expansion tank Use only SAE 20...

Page 30: ...ed 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 Never use gasoline for cleaning parts Read...

Page 31: ...ting the machine Oil drain valve Figure 4 5 Engine air filter Perform engine air filter maintenance per the engine s owner s manual General engine maintenance Detailed instructions and recommendations...

Page 32: ...is available from BigDog Mowers It is designed to prevent the blades from rotating when they are being removed or installed on the spindle Contact your BigDog Mowers dealer for more information Sharpe...

Page 33: ...e the best control of the machine and are the most comfortable and then tighten the cap screws Figure 4 10 Cap screw Figure 4 10 Steering control lever adjustment The steering control levers can be ad...

Page 34: ...Cap screws Upper control lever Lower control lever Figure 4 11 4 8 603744_0911...

Page 35: ...e spark plugs X Replace fuel evaporation system filter 8 X Check ROPS mounting hardware 9 X 603744_0911 4 9 NOTES 1 Initial oil change is after 5 hours of operation Thereafter change oil after every 4...

Page 36: ...Engine Air Cleaner 4 Engine Oil Drain Valve 5 Battery 6 Fuel Tank 7 Engine Oil Filter 8 Deck Lift Pivot Zerks 4 9 Park Brake Switch 2 10 Drive Tire 11 Pump Belt 12 Engine Air Intake Screen 13 Front G...

Page 37: ...w engine oil pressure Low oil level Add oil Oil diluted or too light Change oil and check for source of contamination Failed oil pump Contact your Dealer High oil consumption Numerous Contact your Dea...

Page 38: ...5 2 603744_0911...

Page 39: ...to distribute oil over cylinder walls and valve mechanism 8 Clean exterior surface of engine Spread a light film of oil over any exposed metal surfaces of engine that are sub ject to corrosion 9 Clean...

Page 40: ...CT LITERATURE If you would like to view or print a copy of the BigDog Mowers A Series product manuals go online to www bigdogmowers com Contact your local BigDog Mowers dealer if you require another e...

Page 41: ...r with stalled engine 3 6 Mower blade maintenance 4 6 Mower blade removal 4 6 Mower deck operation 3 11 Mower operation 3 8 New season preparation 6 1 Operating suggestions 3 10 Parts and service 1 1...

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