Walker PA6685 User Manual
OWNER’S MANUAL
Safety, Assembly, Operating, and Maintenance Instructions
and ILLUSTRATED PARTS MANUAL
PA6685 PERFAERATOR™ Attachment
™
Please Read and Save These Instructions Effective Date: 02-06-08
For Safety, Read All Safety and Operation P/N 6600-2
Instructions Prior to Operating Machine
Foreword
Thank you. . .for purchasing a Walker PERFAERATOR™. Every effort has been made to provide
you with the most reliable product on the market, and we are sure you will be among our many satisfied customers. If for any reason this product does not perform to your expecta tions, please contact us at (970) 221-5614. Every customer is important to us. Your satisfaction is our goal.
Please. . .read this manual thoroughly! This manual is to be used in conjunction with the mower
owner’s manual and the engine manufacturer’s manual for the specific engine on the mower model
you are using. Before you operate your new implement, please read this entire manual. Some of
the information is crucial for proper operation and maintenance of this product - it will help protect
your investment and ensure that the implement performs to your satisfaction. Some of the infor mation is important to your safety and must be read and understood to help prevent possible injury to
the operator or others. If anything in this manual is confusing or har d to understand, pl ease call our
service department, at (970) 221-5614, for clarification before operating or servicing this product.
This manual covers the Model PA6685 PERFAERATOR™ attachment.
All shields and guards must be in place for the proper and safe operation of this aerator.
Where they are shown removed in this manual, it is for illustration purposes only. Do not operate
this product unless all shields and gu ard s are in pl ac e.
Specifications given are based on the latest information available at the time this manual was produced.
Walker Mfg. Co. is continually striving to improve the design and performance of its products. We
reserve the right to make changes in specifications and design without thereby incurring a ny obligation relative to previously manufactured products.
Sincerely,
WALKER MANUFACTURING COMPANY
Bob Walker, President
Table of Contents
Owner’s Manual
General Information ________________ 2
HIGHLIGHTED INFORMATION_____________ 2
GLOSSARY ____________________________ 2
IDENTIFYING NUMBER LOCATIONS________ 2
SERVICING OF DRIVETRAIN GEARBOX ____ 2
Specifications _______________________ 3
PERFORMANCE ________________________ 3
DIMENSIONS ___________________________ 3
CONSTRUCTION ________________________ 3
DRIVE SYSTEM _________________________ 3
TIRE/WHEEL SIZE_______________________ 3
Component Identification___________ 4 Safety Instructions __________________ 5
BEFORE OPERATING____________________ 5
OPERATING____________________________ 6
MAINTENANCE _________________________ 7
SAFETY, CONTROL,
AND INSTRUCTION DECALS ______________ 8
Assembly Instructions ______________ 9
Operating Instructions______________10
CONTROL IDENTIFICATION,
LOCATION, AND FUNCTION _____________ 10
Tractor Controls _____________________ 10
Lift Lever ___________________________ 10
Foot Trigger _________________________ 10
STARTING THE MACHINE _______________ 11
ENGAGING THE AERATOR ______________ 11
Normal Operation ____________________ 11
RECOMMENDATIONS FOR AERATING ____ 12
STOPPING THE MACHINE _______________ 12
Maintenance Instructions___________12
LUBRICATION_________________________ 13
Grease Fitting and Oil Point Lubrication__ 13
Gearbox ____________________________ 13
Drive Chain__________________________ 13
Lifting Mechanism____________________ 13
Camshaft Drive System _______________ 13
PTO U-Joint _________________________ 13
ADJUSTMENTS________________________ 14
Drive Chain Tension __________________ 14
Tine Ends ___________________________ 14
REPLACING/REPAIRING ________________ 15
Tine Ends ___________________________ 15
REMOVAL ____________________________ 15
END OF SEASON STORAGE _____________ 15
SETUP INSTRUCTIONS __________________ 9
Lift Lever Installation___________________ 9
Installation on Tractor __________________ 9
Illustrated Parts Manual
LUBRICATION POINTS__________________ 16
BODY AND FRAME COMPONENTS _______ 18
CONTROL LINKAGE____________________ 20
POWER TRANSMISSION COMPONENTS___ 22
Maintenance And Service Record Sheet
Warranty
________________________24
____________________________25
1
General Information
HIGHLIGHTED INFORMATION
Walker Manufacturing recommends that any service
requiring special training or tools be performed by
an authorized Walker Mower Dealer . There are several general practices to be aware of in the area of
safety. Most accidents associated with the operation or maintenance of a Walker product are
caused by disregarding basic safety precautions or
specific warnings. Such accidents, in most cases,
can be prevented by being aware of the dangers
present.
Information of special importance has been highlighted in bold type in this manual. Refer to Safety
Instructions for the meanings of DANGER, WARNING, CAUTION, IMPORTANT, and NOTE.
GLOSSARY
There are many terms that are either unique to this
equipment or that are used as acronyms. The following terms and their definitions will help while using this manual:
• FORW ARD SPEED CONTROL (FSC) controls
the maximum forward speed of the tractor; functioning as a cruise control.
• LEFT HAND (LH) refers to the left-hand side of
the tractor when the operator is seated facing
forward in the tractor seat.
• MACHINE consists of the implement installed
on the tractor, functioning as a single unit.
• POWER TAKE-OFF (PTO) transmits engine
power to run the PERFAERATOR™.
• RIGHT HAND (RH) refers to the right-hand side
of the machine when the operator is seated facing forward in the tractor seat.
• TRACTOR is the prime mover , including the en-
gine, drivetrain, operator seat, and controls to
operate the implement.
IDENTIFYING NUMBER LOCATIONS
The PERFAERATOR™ serial number is affixed to
the RH side of the inside of the unit housing. Model
and serial numbers are helpful when obtaining replacement parts and maintenance assistance. For
ready reference, please record these numbers in the
space provided.
PERFAERATOR™ Model No. ______________
PERFAERATOR™ Serial No. _______________
Fill In By Purchaser
Serial
Number Plate
Aerator Serial Number Location
SERVICING OF DRIVETRAIN GEARBOX
Detailed servicing and repair of the gea rbox used on
the PERFAERATOR™ is not covered in this manual. Only routine maintenance and general service
instructions are provided. For the service of the
gearbox during the limited warranty period, it is important to find a local, authorized servicing agent of
the component manufacturer. Any unauthorized
work done on these components during the warranty period may void the warranty. If you have any
difficulty finding an authorized outlet or obtaining
warranty service, please contact our Service Department for assistance:
Walker Manufacturing Company
5925 E. Harmony Road
Fort Collins, CO 80528
1-970-221-5614
PA6685
Gearbox manufacturer's information is:
Bondioli & Pavesi
10252 Sycamore Drive
Ashland, VA 23005-8137
1-804-550-2224
2
Specifications
MODEL PA6685 AERA TOR
PERFORMANCE
Aeration Width 41-1/2 in. (105 cm)
Core Spacing 3.63 x 6 in. (9.22 x 15.25 cm)*
Coverage per Hour 70,000 sq. ft. (6500 sq. meters)
Coring Depth Up to 2.50 in. (6.35 cm)
DIMENSIONS
Weight 390 lb (146 kg)
Height 23-1/4 in. (59 cm)
Width 49-3/4 in. (124 cm)
Length 41-1/2 in. (105 cm)
CONSTRUCTION
Frame All Welded Unitized Frame
Housing 11 & 14 Gauge Welded Steel
Number of Tines 12
Tine Construction Machined, High Carbon, Heat-Treated Steel, Thread-
Mounted (Replaceable)
DRIVE SYSTEM
PTO Drive Tractor PTO Drive Shaft/2 High-Speed U-Joints, Right
Angle Gearbox, Chain Final Drive to Camshaft
TIRE/WHEEL SIZE
Deck Caster Wheel Pneumatic 11 x 4.00-5
Roller Wheel 3-7/8 in. (9.84 cm)
* This measurement may vary depending on ground speed
3
Component Identification
Ground
Speed
Indicator
NOTE: Control Identification
shown in Operating
Instructions section.
Lift
Lever
Protective
Cover
Plastic
Wheel
Footrest
Mounting
Tube
Chain
Guard
PTO
Shaft
Cover
Protective
Cover
Plastic
Wheel
Foot
Trigger
PTO
Gearbox
PTO
Shaft
PERFAERATOR™ Top View (Not Installed)
4
Safety Instructions
Pay particular attention to any information labeled
DANGER, WARNING, CAUTION, IMPORTANT,
and NOTE in this manual.
When you see the Safety Alert Symbol ( ),
read, understand, and follow the instructions. Failure to comply with safety instructions may result in
personal injury.
The seriousness or degree of importance of each
type of information is defined as follows:
DANGER
An IMMEDIATE hazard that WILL result in
severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.
WARNING
A POTENTIAL hazard that COULD result in
severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.
The PERFAERATOR™ has been designed with
many safety features to protect the operator from
personal harm or injury. However, it is necessary
for the operator to use safe operating procedures at
all times. Failure to follow safety instructions
contained in this manual may result in personal
injury or damage to equipment or property.
If you have any questions concerning setup,
operation, maintenance, or safety, please
contact your authorized Walker Mower Dealer
or call Walker Manufacturing Company at
(970) 221-5614.
BEFORE OPERATING
1. Read and understand the contents of this
OWNER'S MANUAL before operating the
machine. Become thoroughly familiar with all
controls and how to stop the machine and disengage the controls quickly. Replacement
Owner's Manuals are available by sending the
Model and Serial Number to:
Walker Manufacturing Company
5925 East Harmony Road
Fort Collins, CO 80528
2. Never allow children to operate or give rides
on the machine. Do not allow adults to operate without proper instruction.
Possible hazards or unsafe practices that
MAY result in MODERATE personal injury
or property damage, or machine damage, if
warning is ignored and proper s afety precautions are not taken.
IMPORTANT: Identifies mechanical information de-
manding special attention, since it deals with the possibility of damaging a part or parts of the machine.
NOTE: Identifies information worthy of special
attention.
Walker Manufacturing cannot predict every potentially dangerous situation. Therefore, items labeled
as such in this manual do not cover all conceivable
situations. Any person using procedures, tools, or
control techniques not recommended by Walker
Manufacturing must take full responsibility for safety .
CAUTION
3. Do not allow anyone other than the operator on
the machine.
4. Keep ever yone, e specia lly childre n and pets, a
safe distance away from the area being aerated.
Do not operate with bystanders in the area.
5. Do not operate the machine wearing sneakers,
tennis shoes, or similar lightweight footwear.
Wear substantial protective footwear that
will improve footing on slippery surfaces.
6. Ground cover or leaves can sometimes hide objects that might cause damage to the aerator.
Clear the area of objects and mark all sprinkler
heads and/or utility box covers.
7. Do not wear loose fitting clothing that could get
caught in moving parts. Always wear ade-
quate protective clothing including long
pants. Wearing safety glasses, safety shoes,
and a helmet is advisable and required by some
local ordinances and insurance regulations.
5
Safety Instructions
8. Prolonged exposure to loud noise can cause
impairment or loss of hearing. Operator hear-
ing protection is recommended. Wear a suitable hearing protective device, such as
earmuffs or earplugs.
9. Keep all protective shields and safety devic-
es in place. If a protective shield, safety device,
or decal is damaged, unusable, or missing, repair or replace it before operating the machine.
10. Be sure any interlock switches are function-
ing correctly so the engine cannot be started
unless the Forward Speed Control lever is in the
NEUTRAL position and the PTO clutch is in the
DISENGAGED position. Also, the engine
should stop if the operator lifts off the seat with
either the Forward Speed Control (FSC) out of
the NEUTRAL-PARK position or the PTO clutch
in the ENGAGED position.
NOTE: There is a 1 to 1-1/2 second time delay
function on the seat switch to avoid engine
power interruption when driving over bum ps.
11. Never attempt to make any adjustments
while the engine is running, except where
specifically instructed to do so.
12. Handle gasoline or diesel fuel with care.
Gasoline is highly flammable and its vapors are
explosive:
a. Use an approved fuel container.
b. Never add fuel to a running engine or hot
engine (allow hot engine to cool several
minutes).
c. Keep matches, cigarettes, cigars, pipes,
open flames, or sparks away from the fuel
tank and fuel container.
d. Always fill the fuel tank outdoors using care.
Fill to about one inch from the top of the tank.
Use a funnel or spout to prevent spilling.
OPERATING
NOTE: Refer to the Walker Rider Lawnmowers
OWNER’S MANUAL for safety instructions for operating the tractor.
1. Operate the machine only in daylight or in good
artificial light with good visibility of areas being
aerated.
2. Sit on the seat when starting the engine and operating the machine. Keep feet on footrests at
all times when the tractor is moving and/or the
implement is operating.
3. An inexperienced operator should learn to
steer (maneuver) the tractor with a slow engine speed before attempting any operating.
Be aware that, with the front mounted implement
configuration, the back of the machine swings to
the outside during turns.
4. Remember, for an emergency stop, the forward
motion of the tractor can always be stopped by
pulling the Forward Speed Control (FSC) into
the NEUTRAL-PARK position.
5. Disengage the PTO clutch and put the FSC in the NEUTRAL-PARK position before starting the engine (an ignition interlock switch normally prevents starting of the tractor if these controls are in the OPERATING position).
6. Do not run the engine in a confined area
without adequate ventilation. Exhaust fumes
are hazardous and can be deadly.
7. Do not carry passengers - maximum seating
capacity is one (1) person.
8. Make sure the tines are clear of debris be fore
engaging the PTO clut ch.
9. Be careful never to allow anyone in front of the
implement.
e. Replace the machine fuel cap and container
cap securely and clean up any spilled fuel
before starting the engine.
WARNING
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects
or other reproductive harm.
6
10. Clear area of loose objects and all children.
Flag sprinkler heads and other hidden obstacles. Walk the entire area before aerating for
possible holes.
11. Avoid sudden start s or stops. Before backing
the machine up, disengage the PTO, retract
tines and look to the rear to be sure no one is
behind the machine. Watch carefully for traffic
when crossing or working near roadways.
Safety Instructions
12. Disengage the PTO clutch when transporting
the machine.
13. Do not operate across the face of slopes. Use
extreme caution when changing direction on
slopes.
14. Never adjust tine depth with the engine run-
ning. Before adjusting tines or servicing, disengage the PTO clutch, stop the engine, and
remove the ignition key. Wait for all movement
to stop before getting off the seat.
NOTE: The PTO brake should normally stop
drive line rotation within 5 seconds of disengaging the PTO clutch.
15. Do not operate the aerator with the covers open.
16. If the aerator tines do not move when the PTO
is engaged:
a. Disengage the PTO clutch, stop the engine,
and remove the ignition key before leaving
the seat.
b. LOOK to make sure PTO shaft and the tine
movement has stopped before servicing
any area of the machine.
c. Disconnect the fuel solenoid wire [diesel en-
gines] or spark plug wire(s) [gasoline engines].
MAINTENANCE
NOTE: Refer to the Walker Rider Lawnmowers
OWNER’S MANUAL for proper tractor maintenance procedures.
1. To prevent accidental starting of the engine
when servicing or adjusting the machine, remove the key from the ignition switch and disconnect the fuel solenoid wire [diesel engines]
or the spark plug wire(s) [gasoline engines].
2. To reduce fire hazards, keep the engine free of
grass, leaves, excessive grease, and dirt.
3. Keep all nuts, bolts, and screws tight to ensure
the machine is in a safe, working condition.
4. Perform only maintenance instructions described in this manual. Unauthor ized mainte-
nance operations or machine modifications
may result in unsafe operating conditions.
5. If the engine must be running to perform a maintenance adjustment, keep hands, feet, and
clothing away from moving parts. Do not
wear jewelry or loose clothing.
6. Always use proper engine service manuals
when working on the engine. Unauthorized
maintenance operations or modifications to the
engine may result in unsafe operating conditions.
17. If the implement strikes a solid object or the machine begins to vibrate abnormally , immediate-
ly disengage the PTO clutch, stop the
engine, and wait for all moving part s to stop.
Disconnect the fuel solenoid wire [diesel engines] or the spark plug wire(s) [gasoline engines] to prevent accidental starting.
Thoroughly inspect the implement and repair
any damage before restarting the engine and
operating the machine. Make sure implement
components are in good condition and all bolts
are tight.
18. Do not touch the engine or muffler while the
engine is running or immediately after stopping the engine. These areas may be hot
enough to cause serious burns.
19. When leaving the machine unattended, disengage the PTO clutch, stop the engine, and remove the ignition key.
7. Altering the machine in any manner which adversely affects its operation , performance, durability, or use will VOID the warranty and may
cause hazardous conditions.
8. Never attempt to disconnect any safety devices
or defeat the purpose of these safety devices.
9. Do not change the engine governor settings or
overspeed the engine. The governor has been
factory-set for maximum-safe engine operating
speed.
10. Use genuine factory replacement parts.
Substitute parts may result in product malfunction and possible injury to the operator and/or
others.
IMPORTANT: Keep all applicable manuals
immediately accessible to anyone who may
operate or service this machine.
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