Classen SA-25 User Manual
SA-25
“STAND-AER™”
STAND ON AERATOR
(S.N. 173 and Up)
A Division of Schiller-Pfeiffer, Inc.
www.classen-mfg.com
1028 Street Road • Southampton, PA 18966
Toll Free: 1-877-596-6337 • Fax: 1-215-357-8045
Operator’s Manual and Parts List
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TABLE OF CONTENTS
SAFETY INSTRUCTION MANUAL . . . . . . . . . . . . . . . . . . 2
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . 2
OWNER/USER NOTICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
USER EXPERIENCE AND QUALIFICATIONS . . . . . . . . . 2
USER CLOTHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSPECT AERATOR BEFORE EACH USE. . . . . . . . . . . . . 3
SCHEDULED AERATOR MAINTENANCE . . . . . . . . . . . . 3
WORK AREA CONDITIONS AND INSPECTION . . . . . . . 3
INITIAL OPERATING AND INSPECTION . . . . . . . . . . . . . 3
OPERATING ON SLOPES. . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
OPERATION IN REVERSE . . . . . . . . . . . . . . . . . . . . . . . . . . 4
OPERATION IN FORWARD DIRECTION. . . . . . . . . . . . . . 4
OPERATING DURING ZERO-RADIUS TURNS. . . . . . . . . 4
FUEL SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
HYDRAULIC SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PRE-DELIVERY SERVICE OF AERATOR . . . . . . . . . . . . . 4
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . 5
INSPECT AERATOR BEFORE EACH USE. . . . . . . . . . . . . 5
HOW TO START AERATOR . . . . . . . . . . . . . . . . . . . . . . . . . 5
UNUSUAL NOISES OR IRREGULAR OPERATION . . . . . 5
HOW TO DRIVE AERATOR . . . . . . . . . . . . . . . . . . . . . . . . . 5
SERVICE AND ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . 5
TIRE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
BLEEDING AIR FROM THE HYDRAULIC SYSTEM . . . . 5
DECALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
MAIN FRAME ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . 6
MAIN FRAME PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . 7
POWER TRAIN ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . 8
POWER TRAIN PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . 9
HANDLE AND CONTROL ASSEMBLY . . . . . . . . . . . . . . 10
HANDLE AND CONTROL PARTS LIST . . . . . . . . . . . . . . 11
TINE FRAME ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . 12
HOSES AND ADAPTERS DESCRIPTION. . . . . . . . . . . . . 13
HYDRAULIC HOSES DESCRIPTION . . . . . . . . . . . . . . . . 14
TWO YEAR LIMITED WARRANTY . . . . . . . . . . . . . . . . . 16
SAFETY INSTRUCTION
MANUAL
Introduction
This aerator is built to the highest standards in the industry.
However, carelessness or operator error may result in serious
injury or death. Accident and hazard prevention are dependent
upon the awareness, concern, wisdom, and proper training of
the personnel involved in the operation, transport, maintenance,
and storage of the equipment. Make sure every operator is
properly trained and thoroughly familiar with all of the
information in this manual before operating the equipment.
General Safety Instructions
The Classen STAND-AER™ is designed with your safety in
mind. It has the following safety systems that you should be
familiar with:
• The warning decals on the aerator.
• You must be standing on the foot platform while the
engine is running before the machine will move.
• If you get off of the foot platform while the engine
is running, the machine will become idle.
• Letting go of the control arms will stop the
wheels instantly.
• Belt and chain guards must be in place.
• Rear wheels are provided to minimize the possibility of
tipping back and over on the operator. These should be in
the downward positions at all times for the exception of
loading unit into a vehicle or trailer. (Loading should
always be in reverse).
Owner/User Notice
The owner’s/user obligation is to instruct themselves and all
potential users in the safe operation of the equipment and be
sure they read and follow the instructions in this manual and
other material provided by Classen MFG., Inc. before using or
allowing others to operate the equipment. Do not use this unit
unless you carefully read, understand and follow the assembly,
installation, and safety instructions contained in the manual
and the warning decals provided on the unit. Do not let other
person’s use this unit unless you make sure they carefully read,
understand and follow these instructions. Never allow children
to operate or play on the unit.
User Experience & Qualifications
This product is designed for use by physically fit and
experienced persons. DO NOT allow children to operate this
unit. Do not allow adults to operate the aerator without the
proper instruction mentioned above. Never allow passengers
on the aerator.
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User Clothing
DO NOT operate the aerator while wearing sandals, tennis
shoes, or shorts. Always wear long non-baggy pants. Wear
high-top leather work boots with thick, textured tread at all
times. Hard or smooth soled shoes are too slippery for a good
footing on aerator platform. NEVER wear loose fitting
clothing which could get caught in the moving parts. Wearing
safety glasses, ear protection and safety shoes is advisable.
Inspect Aerator Before Each Use
DO NOT use the aerator if any parts are not maintained in
good operating condition. Examine the moving parts prior to
each use. Look for excessive wear, bald or worn tires, cracks in
parts, loose or missing bolts, cotter, lynch, or hair pins and
replace before operating the aerator. Make sure all safety
equipment provided with the aerator is in good operating order,
including all the warning decals. Inspect the rear wheels and
their respective bolts for tightness and proper operation. Ensure
that all parts of the hand-operated transmission control system
are tight and secure. This is to reduce the possibility that the
aerator could have a loss of control or safety.
Scheduled Aerator Maintenance
Replace worn rear drive tires with less than 3/32” of any tread
groove left. Grease all fittings (12 total) daily. Each grease
fitting should be filled until full.
• 4 fitting on the swing arm.
• 1 fitting on each of the front wheels.
• 1 fitting on the left and right control handles.
• 1 fitting on each tine disc hub.
• 1 fitting on each female rod end.
Check roller chains for wear. Apply a light coat of No. 30 oil
or penetrating chain lubricant to keep the chains in proper
running order.
Check roller chain(s) for tightness. Follow these steps:
Model SA-25
1. Disconnect spark plug.
2. Take off pulley guard(s).
3. Loosen nuts by turning counter clockwise
4. Retighten nut by turning clockwise against lock washer.
5. Replace pulley guard, nuts and lock washers and
retighten nuts.
DO NOT change the engine governor settings or over-rev the
engine contrary to engine manufacturer specifications. Keep
the Classen aerator in good operating condition, and keep
safety devices and shields in place and in working condition.
Keep all nuts and bolts tight to be sure the equipment is in safe
working condition. Replace worn tines. Make sure the engine
is turned off when doing ANY maintenance on unit. The
aerator should not be used after the tine strikes a foreign
object, until conducting a thorough inspection and any damage
is repaired. When changing tines, pull out and remove the 3/8”
snap lock pin (located in the upper-center of the foot platform
mount), and raise platform. Once platform is raised and
secured in the up position, you have access to the tines.
When you are done maintaining the tines, lower the platform,
and re-secure the 3/8” snap lock pin.
Work Area Conditions and Inspection
Prior to operating the unit carefully inspect all lawn/ground
areas where you plan to use the aerator for hidden, hard-to-see
objects or uneven ground that may be hidden in the grass.
Clear the work area of moveable objects such as wire, rocks,
sprinkler heads, glass, etc. that might damage the aerator or be
thrown. Remove, if possible, or mark the location of all
immovable objects or irregular areas and be sure not to hit
them with any part of the aerator. Obstacles such as holes,
abrupt changes in the ground contour, tree trunks, stumps or
roots, stub pipes protruding from the ground, paving edges,
etc. in the path of operation can abruptly turn or stop the
aerator. This could throw you off the aerator or into and
possibly over the control handle causing serious injury or
death. The faster you are moving the more potential there is
for injury. Aerate only in daylight or in good artificial light.
Keep away from drop-offs, the edges of ponds, streams, pools,
etc. especially at the bottom of slopes. Do not aerate when
children or others are around. Never operate the aerator in an
enclosed area without good, approved ventilation. Exhaust
fumes are dangerous.
Initial Operating Safety Guidelines
• Read and understand the warning decals on the unit.
• Keep a firm hold on the stationary handle at all times.
• Keep both feet on foot platform at all times.
• Know the controls and how to stop quickly.
• Before attempting to start engine, follow all
starting instructions.
• Look behind before backing up.
• Before leaving the operator’s position for any momentary
reasons, make sure the tines are up. Keep others from
coming near the aerator. Get back on the aerator as soon
as possible.
• When transporting, driving onto transport vehicles, into
buildings, across parking lots or otherwise not aerating, lift
tines up.
• When driving the machine onto a trailer, or transport
vehicle, always back the machine onto the unit, for fear of
tipping backwards.
• Before performing any maintenance, or repair service
always turn engine off.
• DO NOT allow inexperienced people to operate the
aerator until they have read and understood these safety
instructions. Operate the aerator at slower speeds while
becoming familiar with it.
• Speeding is dangerous for even an experienced operator.
Sudden stops from excessive speed may cause serious
injury.
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• Keep all shields and covers in place.
• Keep hands, feet, and clothing away from moving parts.
• Do not touch engine or muffler while engine is running or
soon after it is stopped. These areas can be so hot as to
cause severe burns.
• Be alert for traffic when crossing roads or operating
near roadways.
• Before crossing gravel drives, sidewalks or roads, lift tines
out of the ground.
Operation on Slopes
DO NOT operate on steep slopes. Do not operate aerator on
slopes steeper than you can feel secure about the ability of the
aerator. Do not operate the aerator at all when the grass is wet.
There is a danger of suddenly sliding sideways or down the
hill. When operating on a slope, travel across the grade
whenever possible, not an up or down pattern. Reduce speed
and exercise extreme caution on slopes and in sharp turns to
prevent tipping or loss of control. Be especially cautious when
changing direction on slopes.
Replacement Parts
Use of parts other than specified parts supplied by Classen
MFG., Inc., may compromise the safe use of the aerator and
is not recommended.
Operation in Reverse
Always keep a firm grip on the aerator handles with both
hands. Keep both feet firmly on the foot platform. Always lift
the tines out of the ground when reversing. Never aerate in
reverse. Operate the aerator very slowly, inching it backwards
until you become familiar with how the aerator operates and
always in an awkward location or position. Never place your
foot or feet on the ground near the back edge of the aerator
while backing up to prevent serious injury to feet or legs if
aerator were to run over you. Look behind you before backing
to prevent injuring yourself or anyone behind you.
Operation in Forward Direction
Always keep a firm grip on the aerator handles with both
hands. Operate the aerator slowly until you become familiar
with how the aerator handles. Do not operate the aerator faster
than conditions allow. For example hills, wet or bumpy ground
or dim light would all be conditions where you should work
slower than normal. Never operate the aerator at the highest
speed unless you are on a level, wide open area of clearly
visible ground or transporting on paved areas. Speeding with
the aerator is dangerous, and so is traveling faster than the
conditions should permit on this aerator. Sudden stops from
excessive speed or falling off the aerator may cause serious
injury or death.
Operating During Zero-Radius Turns
During zero-radius turns (when one aerator wheel rotates
backwards while the other is moving forward) drive extra
slowly to reduce the possibility of losing traction or control.
Fuel Safety
Handle gasoline with care – it is highly flammable. Do not
smoke while handling gasoline. Use an approved gasoline
container. Never remove the fuel cap or add gasoline to a
running or hot engine or an engine that has not been allowed to
cool for several minutes after running. Never fill the tank
indoors and always clean up spilled gas. NEVER store the
equipment with gasoline in the tank inside a building where
fumes may reach an open flame or spark. Allow the engine to
cool before storing in any enclosure.
Hydraulic Safety
Keep body and hands away from pin holes or fittings that eject
hydraulic fluid under high pressure. Use paper or cardboard
and not hands to search leaks. Make sure all hydraulic fluid
connections are tight and all hydraulic hoses and lines are in
good condition before starting the Classen aerator.
PRE-DELIVERY SERVICE
Pre-Delivery Service of Aerator
The Classen STAND-AER™ is shipped completely assembled
and has been adjusted at the factory. However, due to the
jostling of the shipping process and the amount of time elapsed
since this was done at the factory until you receive the machine
the following items need to be repeated again before starting
the aerator:
• Remove spark plug wire from spark plug.
• Inspect the aerator for any damage, unusual conditions or
missing parts.
• Inspect the aerator for all of its decals, especially the
warning decals.
• Check (and fill if necessary) engine oil level according to
the engine manufacturing recommendation. Refer to your
Honda manual.
• Check (and fill if necessary) hydraulic fluid level. Use
20W-50.
• Lubricate all moving parts. Re-grease after every use.
• Fill fuel tank with regular unleaded gasoline.
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OPERATING INSTRUCTIONS
Inspect aerator before each use
Do not use aerator if any parts are not maintained in good
operating condition. Examine the moving parts prior each use.
Look for excessive wear, bald drive tires or worn out front
tires, cracks in parts, loose or missing bolts, cotter, lynch, or
hair pins and replace before operating the aerator.
How to Start the Aerator
• Turn the ignition switch to the “On” position.
• Turn the choke on (if engine is cold).
• Pull engine rope until it starts.
• Turn the choke off once it’s running smoothly.
• Immediately step onto the foot platform after the engine
is running.
Unusual Noises or Irregular Operation
As you drive the aerator listen for any unusual noises and test
for irregular operation and adjust or service as necessary.
How to Drive the Aerator
You must stand on the aerator foot platform for the aerator to
move. Move the throttle speed to the desired speed. Once you
are standing on the foot platform, and the engine is set at the
desired speed, push both control handles away from you to go
forward, and pull them both towards you to go backwards. To
turn right pull the right control handle. To turn left pull the left
control handle. Let go of both the control handles to bring the
machine to idle position.
SERVICE AND
ADJUSTMENT
Tire Maintenance and Pressure
Excessively worn tire tread is dangerous on all hills. Replace
drive tires with less than 3/32” of any tread groove left. Use
only tires supplied by Classen. All six tires are foam filled and
do not hold air. You will not need to check air pressure.
How to Bleed Air from the Hydraulic System
When any of the hydraulic parts are disconnected or removed
or when the oil is changed, air must be bled from the system.
With the bypass valve (brass nut on each of the hydraulic
pumps with a hole in the middle) closed, slowly move the
control handles in both the forward and reverse directions. As
air is purged from the unit, the oil level in the reservoir will
drop and bubbles may appear in the fluid. Refill the reservoir
as necessary.
Place the control handles in the neutral position and open the
bypass valve using a 5/8” wrench. Slowly move the control
handles in both the forward and reverse directions to purge the
air from the closed circuit.
Close the bypass valve and run the unit in both directions for
several minutes, until any remaining air is purged from the
unit. Refill the reservoir as necessary. Check for any fluid
leaks, and check the reservoir level. Add fluid if necessary.
The transmission is now ready for operation. Check the
reservoir daily for proper fluid level. It should be filled to the
top, or about 4 quarts.
Decals
• (3) CLASSEN®decals located on front bumper and on
both sides of frame.
• (2) STAND-AER™ decals located on both sides of frame,
under CLASSEN®decal.
• (1) DANGER decal located on left side pulley guard.
• (1) ALL GUARDS decal located on right side
pulley guard.
• (2) SA-25 decals located on both sides of handle.
• (1) TINE DEPTH decal located on front left of machine.
• (1) R.H. FORWARD/REVERSE decal located on right
upper side of handle.
• (1) L.H. FORWARD/REVERSE decal located on left
upper side of handle.
• (1) THROTTLE FAST/SLOW decal located on lower
right side of handle.
• (1) SERIAL TAG located on lower left inside of handle.
• (1) LUBRICATION TAG twist tied to engine.
• (1) TINES decal located on upper left side of handle.
P/N 100074
P/N 100380
P/N 100096
P/N 100069
P/N 100424
P/N 100422
P/N 100421 P/N 100423
P/N 100350
P/N 100425 P/N 100073 P/N 100055
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