Worksaver SS-590 Owner's manual

OWNER’S/
OPERATOR’S
MANUAL
MODEL NO.
SS-590
CAUTION
For Safe Operation
Read Rules And
Instructions Carefully
SI NO LEEINGLES, PIDA AYUDA
A AIGUIEN QUE SI LO LEA
PARA QUE LE TRADUZCA LAS
MEDIDAS DE SEGURIDAD.
SKID STEER MOUNTED
HYDRAULIC MIXER
Safety Instructions Assembly & Mounting
Tractor Preparation Maintenance
Operating Instructions Repair Parts
CAUTION
THE FOLLOWING SAFETY PRECAUTIONS SHOULD BE THOROUGHLY UNDERSTOOD
BEFORE ATTEMPTING TO BEGIN ASSEMBLING THIS MACHINE
1. Select an area for assembly that is clean and free of any
debris which might cause persons working on the
assembly to trip.
2. Do not lift heavy parts or assemblies. Use crane, jack,
tackle, fork trucks or other mechanical devices.
3. Preview the assembly instructions in your operator’s
manual before proceeding further.
4. If the assembly instructions call for parts or assemblies to
be blocked up, use only blocking material that is in good
condition and is capable of handling the weight of the
assembly to be blocked. Also insure that the blocking
material is on a clean, dry surface.
5. Never put hands, or any part of body, under blocked up
assemblies if at all possible.
6. After completing assembly, thoroughly inspect the
machine to be sure that all nuts, bolts, hydraulic fittings
or any other fastened assemblies have been thoroughly
tightened.
7. Before operating the machine, thoroughly read the
operation section of your operator’s manual.
8. Before operating, read the maintenance section of your
operator’s manual to be sure that any parts requiring
lubrication, such as gearboxes, are full, to avoid any
possible damage.
9. Before operating equipment – If you have any
questions regarding the proper assembly or
operation, contact your dealer or representative.

1
TABLE OF CONTENTS
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SAFETY SIGNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
PREPARATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . 12
SKID STEER INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . 13
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 14
MIX INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
TROUBLE-SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
PARTS LISTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 19
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
TO THE OWNER:
Read this manual before using your Hydraulic Mixer. This manual is provided to give you the necessary operat-
ing and maintenance instructions for keeping your Hydraulic Mixer in top operating condition. Please read this
manual thoroughly. Understand what each control is for and how to use it. Observe all safety signs on the machine
and noted throughout the manual for safe operation of implement. Keep this manual handy for ready reference.
Like all mechanical products, it will require cleaning and upkeep. Lubricate the Mixer as specified.
Use only genuine Worksaver, Inc. service parts. Substitute parts will void the warranty and may not meet stan-
dards required for safe and satisfactory operation. Record the model and serial number of your Mixer here:
Model:________________________________________ Serial Number:_______________________________
RETAIL CUSTOMER’S RESPONSIBILITY
It is the Retail Customer and/or Operator’s responsibility to read the Operator’s Manual, to operate, lubri-
cate, maintain, and store the product in accordance with all instructions and safety procedures. Failure
of the operator to read the Operator’s Manual is a misuse of this equipment.
It is the Retail Customer and/or Operator’s responsibility to inspect the product and to have any part(s)
repaired or replaced when continued operation would cause damage or excessive wear to other parts or
cause a safety hazard.
It is the Retail Customer’s responsibility to deliver the product to the authorized Worksaver Dealer, from
whom he purchased it, for service or replacement of defective parts which are covered by warranty.
Repairs to be submitted for warranty consideration must be made within forty-five (45) days of failure.
It is the Retail Customer’s responsibility for any cost incurred by the Dealer for traveling to or hauling
of the product for the purpose of performing a warranty obligation or inspection.
SI NO LEEINGLES, PIDA AYUDA A
AIGUIEN QUE SI LO LEA PARA QUE
LE TRADUZCA LAS MEDIDAS DE
SEGURIDAD.
STATEMENT
OF POLICY
It is the policy of Worksaver,
Inc. to improve its products
where it is possible and practical
to do so. Worksaver, Inc.
reserves the right to make
changes or improvements in
design and construction at any
time, without incurring the obliga-
tion to make these changes on
previously manufactured units.

2
LIMITED WARRANTY
✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯
Worksaver warrants to the original purchaser of any new Hydraulic Mixer Model 590, that the equipment be
free from defects in material and workmanship for a period of six (6) months for non-commercial, state, and
municipalities. Use sixty (60) days for commercial use from date of retail sale.
Replacement or repair parts installed in the equipment covered by this warranty are warranted for ninety (90)
days from the date of purchase of such part or to the expiration of the applicable new equipment warranty
period, whichever occurs later.
Such parts shall be provided at no cost to the user during regular working hours. Worksaver reserves the right
to inspect any equipment or parts which are claimed to have been defective in material or workmanship.
DISCLAIMER OF IMPLIED WARRANTIES & CONSEQUENTIAL DAMAGES
Worksaver’s obligation under this warranty, to the extent allowed by law, is in lieu of all warranties, implied or
expressed, including implied warranties of merchantability and fitness for a particular purpose and any liabili-
ty for incidental and consequential damages with respect to the sale or use of the items warranted. Such
incidental and consequential damages shall include but not be limited to: transportation charges other than
normal freight charges; cost of installation other than cost approved by Worksaver; duty; taxes; charges for nor-
mal service or adjustments; loss of crops or any other loss of income; rental of substitute equipment, expens-
es due to loss, damage, detention or delay in the delivery of equipment or parts resulting from acts beyond the
control of Worksaver.
THIS WARRANTY SHALL NOT APPLY:
1. To vendor items which carry their own warranties, such as hydraulic motors, tires, and tubes.
2. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.
3. If parts not made or supplied by Worksaver have been used in connection with the unit, if, in sole judge-
ment of Worksaver such use affects its performance, stability, or reliability.
4. If the unit has been altered or repaired outside of an authorized Worksaver dealership in a manner which,
in the sole judgement of Worksaver affects its performance, stability or reliability.
5. To normal maintenance service and normal replacement items such as gearbox lubricant, hydraulic fluid,
worn blades, or to normal deterioration of such things as belts and exterior finish, due to use or exposure.
6. To expendable or wear items such as mixer drum, paddles, springs and other items that in the company’s
sole judgement is a wear item.
NO EMPLOYEE OR REPRESENTATIVE OF WORKSAVER IS AUTHORIZED TO CHANGE THIS
WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY UNLESS SUCH CHANGE IS MADE IN
WRITING AND SIGNED BY WORKSAVER’S SERVICE MANAGER, POST OFFICE BOX 100, LITCHFIELD,
ILLINOIS 62056-0100.
✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯

3
To the Owner/Operator/Dealer
All implements with moving parts are potentially hazardous. There is no substitute for a cautious, safe-minded opera-
tor who recognizes the potential hazards and follows reasonable safety practices. The manufacturer has designed this
implement to be used with all its safety equipment properly attached to minimize the chance of accidents.
BEFORE YOU START!!
Read the safety messages on the implement and shown in your manual.
Observe the rules of safety and common sense!
THIS SAFETY ALERT SYMBOL IDENTIFIES IMPORTANT
SAFETY WARNING MESSAGES. CAREFULLY READ EACH
WARNING MESSAGE THAT FOLLOWS. FAILURE TO
UNDERSTAND AND OBEY A SAFETY WARNING, OR
RECOGNIZE A SAFETY HAZARD, COULD RESULT IN AN
INJURY OR DEATH TO YOU OR OTHERS AROUND YOU.
THE OPERATOR IS ULTIMATELY RESPONSIBLE FOR THE
SAFETY OF HIMSELF, AS WELL AS OTHERS, IN THE
OPERATING AREA OF THE TRACTOR AND ATTACHED
EQUIPMENT.
IMPORTANT SAFETY INFORMATION!
Read this manual, and the manual for your tractor, before assembly or operating, to acquaint yourself with the
machines. It is the implement owner’s responsibility, if this machine is used by any person other than yourself, is loaned
or rented, to make certain that the operator, prior to operating:
1. Reads and understands the operator’s manuals.
2. Is instructed in safe and proper use.
The use of this equipment is subject to certain hazards which cannot be protected against by mechanical
means or product design. All operators of this equipment must read and understand this entire manual, pay-
ing particular attention to safety and operating instructions, prior to using. If there is something in this manu-
al you do not understand, ask your supervisor, or your dealer, to explain it to you.
THIS SYMBOL MEANS
– ATTENTION!
– BECOME ALERT!
– YOUR SAFETY IS INVOLVED!
UNDERSTAND SIGNAL WORDS
Note the use of the signal words DANGER, WARNING
and CAUTION with the safety messages. The
appropriate signal word for each has been selected
using the following guidelines:
DANGER: Indicates an imminently hazardous situation
that, if not avoided, will result in death or serious injury.
This signal word is to be limited to the most extreme
situations typically for machine components which, for
functional purposes, cannot be guarded.
If you have questions not answered in this manual or require additional copies or the manual is damaged, please
contact your dealer or the manufacturer directly.
WARNING: Indicates a potentially hazardous sit-
uation that, if not avoided, could result in death
or serious injury, and includes hazards that are
exposed when guards are removed. It may also
be used to alert against unsafe practices.
CAUTION: Indicates a potentially hazardous sit-
uation that, if not avoided, may result in minor or
moderate injury. It may also be used to alert
against unsafe practices.

4
SAFETY INSTRUCTIONS (continued)
Safety of the operator is one of the main concerns in designing and developing a new piece of equipment.
Designers and manufacturers build in as many safety features as possible. However, every year many
accidents occur which could have been avoided by a few seconds of thought and a more careful approach to
handling equipment.You, the operator, can avoid many accidents by observing the following precautions in this
section. To avoid personal injury, study the following precautions and insist those working with you, or for you,
follow them.
In order to provide a better view, certain photographs or illustrations in this manual may show an assembly with
a safety shield removed. However, equipment should never be operated in this condition. Keep all shields in
place. If shield removal becomes necessary for repairs, replace the shield prior to use.
To prevent injury or death, use a power unit equipped with a Roll-Over Protective System (ROPS). Do not paint
over, remove or deface any safety signs or warning signs on your equipment. Observe all safety signs and
practice the instruction on them.
Never exceed the limits of a piece of machinery. If its ability to do a job, or to do so safely, is in question –
DON’T TRY IT.
Do not modify the equipment in any way. Unauthorized modification may impair the function and/or safety and
could affect the life of the equipment.
In addition to the design and configuration of this implement, including Safety Signs and Safety Equipment,
hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper
training of personnel involved in the operation, transport, maintenance, and storage of the machine. Refer also
to Safety Messages and Operation Instructions in each of the appropriate sections of the power unit and
implement manuals. Pay close attention to the Safety Signs affixed to the power unit and the implement.
Replace any CAUTION, WARNING, DANGER or instruction safety sign that is not readable or is missing.
Location of such safety signs is indicated in this booklet.
Never use alcoholic beverages or drugs which can hinder alertness or coordination while operating this
equipment. Consult your doctor about operating this machine while taking prescription medications.
Review the safety instructions with all users annually.
This equipment is dangerous to children and persons unfamiliar with its operation. The operator should be a
responsible adult familiar with farm machinery and trained in this equipment’s operations. Do not allow per-
sons to operate or assemble this unit until they have read this manual and have developed a thorough
understanding of the safety precautions and of how it works.
EQUIPMENT SAFETY GUIDELINES

5
SAFETY INSTRUCTIONS (continued)
Keep safety signs clean and legible at all times.
Replace safety signs that are missing or have become illegible.
Replaced parts that displayed a safety sign should also display the current sign.
Safety signs are available from your Distributor or Dealer Parts Department or the factory.
Be sure that the installation area is clean and dry. Be sure temperature is above 50°F (10°C).
Decide on the exact position before you remove the backing paper.
Remove the smallest portion of the split backing paper. Align the sign over the specified area and carefully
press the small portion with the exposed sticky backing in place.
Slowly peel back the remaining paper and carefully smooth the remaining portion of the sign in place. Small
air pockets can be pierced with a pin and smoothed out using the piece of sign backing paper.
How to Install Safety Signs:
SAFETY SIGNS
Safety is a primary concern in the design and manufacture of our products. Unfortunately, our efforts to pro-
vide safe equipment can be wiped out by a single careless act of an operator. It is the operator’s responsibili-
ty to read and understand ALL Safety and Operating instructions in the manual and to follow these. Accidents
can be avoided.
Know your controls and how to stop skid steer, engine, and attachment quickly in an emergency. Read this
manual and the one provided with your skid steer.
In addition to the design and configuration of equipment, hazard control and accident prevention are depend-
ent upon the awareness, concern, prudence and proper training of personnel involved in the operation, trans-
port, maintenance and storage of equipment.
Train all new personnel and review instructions frequently with existing workers. A person who has not read
and understood all operating and safety instructions is not qualified to operate the machine. An untrained
operator exposes himself and bystanders to possible serious injury or death.
Read this manual, and the manual for your skid steer, before assembly or operating, to acquaint yourself with
the machines. It is the owner’s responsibility, if this machine is used by any person other than yourself, is
loaned or rented, to make certain that the operator, prior to operating:
1. Reads and understands the operator’s manuals.
2. Is instructed in safe and proper use.
SAFETY TRAINING
Do not allow children to operate this machine.

6
SAFETY INSTRUCTIONS (continued)
Never place hands or body on mixer with mixer drum rotating or before you are sure all motion has stopped.
Stay clear of all moving parts.
Take all possible precautions when leaving unit unattended: Disengage hydraulic power, set parking brake,
stop engine and remove key from ignition. Park in level area.
Mixer operating power is supplied from skid steer hydraulic system. Refer to your skid steer manual for
hydraulic engagement and disengagement instructions. Know how to stop skid steer and mixer quickly in case
of an emergency.
Mixer should be lifted off the ground before engaging hydraulic power and be sure that no one is near the
machine. When engaging hydraulic system, the RPM should always be low.
Be certain the skid steer is in neutral or park position before starting engine.
Do not leave the skid steer and attachment unattended with the engine running.
The use of this equipment is subject to certain hazards which cannot be protected against by mechanical
means or product design. All operators of this equipment must read and understand this entire manual, pay-
ing particular attention to safety and operating instructions, prior to using. If there is something in this manu-
al you do not understand, ask your supervisor, or your dealer, to explain it to you.
Keep all helpers and bystanders at least twenty (20) feet from an operating mixer. Only properly trained peo-
ple should operate this machine.
STARTING AND STOPPING SAFETY
OPERATIONAL SAFETY
Do not walk or work under a raised mixer attachment unless it is securely blocked or held in position. Do not
depend on the hydraulic system to hold the mixer attachment in place.
A heavy load can cause instability of the skid steer. Use extreme care during travel. Slow down on turns and
watch out for bumps. The skid steer may need additional counter-weights to counter-balance the weight of the
mixer.
Never use alcoholic beverages or drugs which can hinder alertness or coordination while operating this
equipment. Consult your doctor about operating this machine while taking prescription medications.
Never permit any person other than the operator to ride or board the skid steer or mixer attachment at any
time. ALLOW NO RIDERS!

7
SAFETY INSTRUCTIONS (continued)
Never place hands or hand held tools (shovel) into the mixer drum while it is turning. It could catch on the mixer
paddles and whip around, possibly injuring the operator or helper.
Use extreme care and maintain minimum ground speed when transporting on hillside, over rough ground and
when operating close to ditches or fences. Be careful when turning sharp corners.
Most accidents occur because of neglect or carelessness. Keep all helpers and bystanders at a safe distance.
Keep all unauthorized and untrained people away from the machine at all time.
Make certain that the work area around the machine is clear of debris and obstructions to prevent tripping
and/or falling onto the machine.
DO NOT overreach while working with the mixer. Keep proper footing and balance at all times when loading or
unloading the mixer.
OPERATIONAL SAFETY (continued)
Before you operate the mixer, check over all pins, bolts and connections to be sure all are securely in place.
Replace any damaged or worn parts immediately.
When maneuvering close to buildings or passing through narrow areas, be sure to allow sufficient clearance
for the skid steer and attachment. Drive slowly.
Beware of low electrical wires when mixer is raised. Serious injury or death can result if contact is made.
Beware of lift clearance when raising mixer to maximum height.
Keep alert and watch the rear as well as the front when working with the mixer.
Always stop the power unit, set brake, shut off the engine, remove the ignition key, lower implement to the
ground and allow rotating mixer drum to come to a complete stop before dismounting. Never leave equipment
unattended with the power unit running. NEVER let the mixer run unattended even for a brief moment.
Take all possible precautions when leaving unit unattended: Disengage hydraulic power, set parking brake,
stop engine and remove key from ignition. Park in level area.

8
Always drive down slopes; never across the face. Avoid operation on steep slopes. Slow down on sharp turns
and slopes to prevent tipping and/or loss of control. Avoid slopes when surface is wet, slippery grass or soil.
SAFETY INSTRUCTIONS (continued)
OPERATIONAL SAFETY (continued)
Stop loader gradually when lowering or lifting loads. Operate loader controls smoothly, avoid jerky operation.
Operate loader from operator’s seat only. Remain at controls until operating cycle is complete.
Allow for additional length of loader arms and attachment on skid steer while turning.
Be sure that people, livestock, or pets are not standing near the machine while operating.
Avoid excessive speed during operation.
ALWAYS lower loader and mixer attachment to the ground or block securely before performing any
maintenance work.
Use extreme care and maintain minimum ground speed when transporting on hillside, over rough ground and
when operating close to ditches or fences. Be careful when turning sharp corners.
Stay alert for holes, rocks and roots in the terrain and other hidden hazards. Keep away from drop-offs.
Reduce speed on slopes and sharp turns to minimize tipping or loss of control. Be careful when changing
directions on slopes. Do not start or stop suddenly on slopes. Avoid operation on steep slopes.
Before operating equipment: if you have any questions regarding the proper assembly or operation, contact
your dealer or representative.

9
SAFETY INSTRUCTIONS (continued)
Before working on this machine, drive to a level area, relieve hydraulic pressure, lower implement (or if work-
ing underneath, raise and block securely), shut off the engine, set the brakes, and remove the ignition keys.
Never work under equipment unless it is blocked securely. Never depend on hydraulic system to keep
implement in raised position.
Always use personal protection devices such as eye, hand and hearing protectors, when performing any
service or maintenance.
Keep all persons away from operator control area while performing adjustments, service, or maintenance.
Periodically tighten all bolts, nuts and screws and check that all cotter pins are properly installed to ensure unit
is in a safe condition.
When completing a maintenance or service function, make sure all safety shields and devices are installed
before placing unit in service.
Always use two people to handle heavy, unwieldy components during assembly, installation, removal, or
moving the mixer attachment
Openings in the skin and minor cuts are susceptible to infection from hydraulic fluid. If injured by escaping
hydraulic fluid, see a doctor at once. Gangrene and death can result. Without immediate medical treatment,
serious infection and reactions can occur.
MAINTENANCE SAFETY
Check to ensure all safety signs are installed and in good condition. (See safety sign section for location
drawing.)
Good maintenance is your responsibility. Poor maintenance is an invitation to trouble.
Inspect the entire machine periodically. Look for loose fasteners, worn or broken parts, and worn driveline parts
and/or shields. Make sure all pins have cotter pins and washers. Serious injury may occur from not maintain-
ing this machine in good working order.

10
SAFETY INSTRUCTIONS (continued)
Comply with state and local laws governing highway safety and movement of machinery on public roads.
Always be sure the attachment is in the proper slightly raised position for transport.
Plan your route to avoid heavy traffic.
Do not drink and drive!
Never allow riders on either power unit or attachment. Falling off can kill.
The use of flashing amber lights is acceptable in most localities. However, some localities prohibit their use.
Local laws should be checked for all highway lighting and marking requirements.
Reduce speed when transporting mounted attachments to avoid bouncing and momentary loss of steering
control.
Be a safe and courteous driver. Always yield to oncoming traffic in all situations, including narrow bridges, inter-
sections, etc.
TRANSPORT SAFETY
Store the unit in an area away from human activity. Do not permit children to play on or around the stored unit.
If blocking is used, make sure it is solid and secure before leaving area.
STORAGE SAFETY
Make sure all parked machines are on a hard, level surface and engage all safety devices. Storage location
should be level and solid to make connecting and unconnecting to skid steer easy.

11
SAFETY SIGNS
WARNING
Stand clear 101027
REMEMBER: If Safety Signs have been damaged, removed, become illegible or parts replaced without Signs, new
Safety Signs must be applied. New Safety Signs are available from your authorized distributor or factory.
BE CAREFUL! Use a clean, damp cloth to clean safety decals. Avoid spraying to close to decals when using a
pressure washer; high-pressure water can enter through very small scratches or under edges of decals causing them
to peel or come off.

12
The Model 590 mixer requires a skid steer to be of suf-
ficient size to handle a loaded mixer drum. Five cubic feet
of concrete weighs 685 lbs. and the Model 590 mixer
weighs 395 lbs. for a total weight of 1,080 lbs. Always be
sure your skid steer is properly counterbalanced for a
safe operation. It is a good practice to use a
loader with an equal or greater SAE operating load
capacity.
INSTRUCTIONS
Be sure your skid steer is in good condition. Read
all the safety precautions and make sure all loader
operators are familiar with the safety rules of
operation.
Do not operate this equipment without shields
properly installed. This is for your protection, and the
manufacturer recommends the use of these shields
at all times while operating this attachment.
Refer to the “exploded view” of the skid steer mounted
hydraulic mixer on page 17 of this manual. Become famil-
iar with the relationship of the various components and
parts shown.
Connect the mixer mount frame to the “universal” quick-
attach plate on your skid steer loader. Flip the spring
loaded latch pins to the “latch lock” position and check to
see they are properly latched. (See next page.)
Install the proper hydraulic quick-connect couplers on
the ends of the hydraulic hoses. Use a good grade liq-
uid thread sealant. Do not use thread tape, as this
can contaminate the hydraulic system.
Route the hose to avoid pinching or chafing the hose.
Use nylon ties or tape to fasten hose on loader arm to
keep it in place. Operate the roll function through its full
range and make sure the hose routing and length is
adequate for your particular make and model skid loader.
The operator is responsible for the safe operation of this
mixer. The operator must be properly trained. Operators
should be familiar with the mixer and power unit and all
safety practices before starting operation. Read the
safety rules and safety signs on pages 3-11.
This unit is shipped almost completely assembled.
Refer to the Safety Precautions and Warnings on the
front cover and in the Safety Section of this manual prior
to working on the machine.
NOTE: The gearbox is shipped WITHOUT lubricant, so
it will be necessary to fill it before use. With the gearbox
in a level position, fill to the side inspection hole with a
good 90 wt. gear lubricant. Gearbox holds 86 fluid oz.
Check often and add lubricant if necessary.
SKID STEER REQUIREMENTS
AND PREPARATION
——————————————————
The Model 590 Hydraulic Mixer is designed to fit skid
steer units with the “Universal” (Bobcat) style quick-attach
loaders. This mixer allows you to mix, transport and place
cement or concrete any place your skid steer unit can go.
Remove the bucket from your Skid Steer unit. Check the
loader arms and cylinders to make sure they are in good
working order. Lubricate all loader pivot points. Check all
bolts to make sure they are in place and tight.
Be sure the skid steer hydraulic oil and filter have been
serviced according to the skid steer manufacturer’s
recommendations.
ASSEMBLY
——————————————————
This unit is shipped almost completely assembled.
Carefully follow instructions for final assembly.
Before attempting assembly check the following items.
Having all the needed parts and equipment readily at
hand will speed up your assembly task and will make the
job as safe as possible.
• Check for fasteners and pins that were shipped with
the mixer. All hardware coming from the factory has
been installed in the location where it will be used. If a
part or fastener is temporarily removed for assembly
reasons, remember where it goes. Keep the parts
separated.
• Have a minimum of 2 people at hand during assembly.
CAUTION
CAUTION

13
INSTRUCTIONS (continued)
Figure 1 – Quick Attach Coupler Handles – Unlocked
Figure 2 – Attachment Coupler Handles – Locked
SKID STEER MIXER
INSTALLATION / REMOVAL
——————————————————
TO INSTALL:
1. Read and understand skid steer manufacturer's
instructions for installing attachments.
2. The quick attach coupler handles should be in the
unlocked position with lock pins retracted, Figure 1.
REMOVING THE MIXER FROM SKID STEER:
3. Enter the prime mover. Fasten seatbelt, start engine.
Disengage the parking brake.
4. Follow the attaching procedure in the prime mover
owner's manual. Align the attachment mechanism
with the mounting on the mixer, attach to the prime
mover or loader.
5. Engage the parking brake and shut down the prime
mover. Be sure to relieve pressure to the auxiliary
hydraulic lines.
6. Unfasten safety restraints and exit the prime mover.
7. Make sure the hydraulic couplers are clean. Connect
the hydraulic lines to the prime mover. Twist the collar
of the quick couplers one-quarter turn to secure
hydraulic connections.
8. Engage the latching mechanism to secure attach-
ment to loader. The lockpins must be completely
extended and secured into the retaining slots provid-
ed on, the attachment. Figure 2.
9. Re-enter the prime mover. Fasten seatbelt and re-
start engine.
10. Carefully raise the loader and cycle the rollback/tilt
cylinders to check clearances and to ensure that the
attachment is securely mounted.
11. With the skid steer engine at a fast idle, engage the
hydraulic lever to allow hydraulic oil to flow to the
mixer. Allow the mixer to operate for a few minutes to
work the air out of the lines.
1. If possible, find a level solid location to place the
attachment. This makes it easier to disconnect and to
re-connect.
2. Lower the attachment to the ground.
3. Engage the parking brake and shut down the prime
mover. Be sure to relieve pressure to the hydraulic
lines.
4. Exit prime mover.
5. Disconnect the attachment hydraulic lines from the
prime mover. Connect quick couplers together to
keep clean.
6. Disengage attachment-locking mechanism (mechan-
ical type).
7. Enter and start the prime mover.
8. Disengage attachment-locking mechanism (hydraulic
type).
9. Disengage the parking brake, and back away from
the attachment.
Attachment coupler handles must always be rotat-
ed to LOCK POSITION to prevent coupler latch from
disengaging and attachment from falling off.
• Serious injury or death may result from disengag-
ing the attachment when the attachment is in an
unstable position. Place the attachment in a stable
position before disengaging.
• Hoses for the attachment must be disconnected
before the quick attach is disengaged. Pulling the
attachment with the hoses could result in damage
to the prime mover or the attachment.
WARNING
WARNING

14
OPERATING INSTRUCTIONS
Never place hands or hand held tools (shovel) into
the mixer drum while it is turning. It could catch on
the mixer paddles and whip around, possibly injuring
the operator.
The speed of the mixer drum can be adjusted with the
handle on the flow control valve.
NOTE: If the legs of the SS-590 Mixer interfere with
dumping the concrete, they can easily be turned 90° (fac-
ing each other) placing them out of the way.
Figure 3
If work is required while the mixer is attached to the
loader, the mixer must be blocked securely. NEVER trust
the loader’s hydraulic system.
The Model 590 Mixer is almost maintenance free. Just
check the gearbox for proper oil level every 40 hours of
operation and keep the unit clean.
Gearbox holds 86 fluid oz. of SAE 90w gear lube.
After mixing concrete, or any material that clings to the
side of the drum, be sure to clean thoroughly when fin-
ished. In mixing concrete, if there are lapses between
batches, it is a good idea to add some water and rinse so
that the concrete will not set in the drum.
Carefully check and replace any worn or damaged
parts.
Before servicing the machine, engage the parking
brake or place the transmission in “Park,” shut off the
skid steer and remove the key.
Keep clear of rotating parts; stay on seat until all
motion has stopped.
Do not get under machine to make adjustments
without securely blocking implement first.
OPERATION
——————————————————
For best mixing, the drum should be inclined upward
10° to 15° (see Fig. 3). Add some water before cement,
sand or aggregate is put in drum.
NOTE: ONLY LOAD MIXER WHILE DRUM IS TURNING.
DO NOT OVERLOAD THE MIXER.
The amount of water used per sack of cement is the key
to quality concrete. Use 5, 6 or 7 gallons of water per sack
of cement with dry sand and dry aggregate depending on
the strength of concrete required. The less water you use
the stronger the concrete will be and we suggest that you
deduct approximately 1 gallon if the material is wet and
approximately 11/2gallons if very wet.
NOTE: See next page for suggested Mix Instructions.
We suggest mixing a trial batch to determine exact
proportions you will want to use. If too wet, add more
sand and aggregate. If too stiff, reduce the amount of
sand and aggregate in the next batch, but never add
more water to a batch once you have established the
correct proportions to use.
After concrete is poured, it is screeded or struck off with
a straight edge like a 2 x 4 and should then be floated to
smooth it. Further troweling or finishing should be delayed
until the water sheen has disappeared from the surface.
The concrete should be cured at least five days. To pre-
vent evaporation of mixing water, cover with burlap or
straw and keep damp or cover with a vapor sealing mate-
rial to seal in the water and prevent evaporation.
MAINTENANCE
——————————————————
WARNING
WARNING

15
MIXING INSTRUCTIONS
SAND MIX
——————————————————
For overlaying concrete and as a bedding mix and joint
grout for flag-stone, slate or brick walkways and patios.
For applications 1/2 inch to 2 inches (50 mm) in thick-
ness.
PREPARATION:
When repairing concrete, square up the area to be
patched. Remove all loose and foreign material. Clean
the surface thoroughly. Dampen the area to be repaired
just prior to applying Sand Mix.
For thicknesses less than 2 inches and toppings, use:
1 part of Portland Cement with 3-4 parts of concrete sand
or general purpose sand,
MIXING:
Place material into mixer. If too stiff, add more water a
little at a time. AVOID A SOUPY MIX. Excess water
reduces strength and durability and can cause cracking.
In cold weather use warm water to accelerate the set.
Use cold water to slow the set in hot weather.
FINISHING:
Level with a screed and allow the bleed water to evap-
orate. Use a float to remove surface imperfections and
trowel to a smooth finish. For a rougher surface, use a
broom. Finishing cementitious materials too early, or
over-working the materials can cause dusting, cracking,
scaling and a weak surface.
CURING:
Curing means maintaining proper moisture and temper-
ature, Account for local environmental conditions when
selecting the curing method. High heat, low humidity or
wind will increase the evaporation of water. Keep the
surface damp, using a sprinkler, wet burlap, or cover with
plastic for several days as needed. In cold weather
adequately cover and keep from freezing for a minimum
of 24 hours.
PREPARED CONCRETE MIX
——————————————————
SAKRETE® Portland Cement Type I-II is used to make
concrete where 2-inch thickness or more is needed to
build or repair walks, floors, footings, patios, setting posts
and poles.
• You will need approximately seven (7) gallons of water
• 6-80 lb. Bags of pre-mix concrete
GENERAL PURPOSE CONCRETE
USING SAND & GRAVEL
——————————————————
Use the following mix proportions to make general pur-
pose concrete:
Mix together
• 1 part cement (This bag contains 94 lbs. or 1 cu. ft.).
• 2 parts concrete sand or general purpose sand (160-
180 lbs.).
• 3 parts gravel or stone (240-300 lbs., 3/4" recommend-
ed).
Add approximately 6 gallons of clean water. Mix until
uniform, workable consistency.
Concrete will remain workable for at least 1 hour.
To aid curing, spray surface lightly with water 2 or 3
times per day for 3 days.
One 94 lb. bag of Portland Cement makes 4.5 cubic feet
of concrete.
• Use an 8-1/2 x 12" square nose shovel
• Portland cement, gravel (or round stone), and masonry
sand
• Put five (5) gallons of water into the mixing drum
• Add 18 shovels full of gravel (or round stone) – 3/4” rec-
ommended
• Add six (6) shovels full of Portland cement
• Slowly add 12 shovels full of masonry sand
•NOTE: WATER WILL VARY ACCORDING TO MOIS-
TURE CONTENT OF SAND & GRAVEL
• Add water (if needed) slowly to obtain desired consis-
tency
WILL YIELD 4.5 CU. FT. OF CONCRETE
• Put five (5) gallons of water into the mixing drum
• Add four (4) 80 lb. Bags of pre-mix concrete
• NOTE: Mixture will be very sloppy
• Slowly add the two remaining bags of 80 lb. Pre-mix
concrete
• Add water slowly to obtain desired consistency
WILL YIELD 4.5 CU. FT. OF CONCRETE

16
TROUBLE-SHOOTING
PROBLEM: MIXER SHAKES EXCESSIVELY
POSSIBLE SOLUTIONS:
• Mix too dry and has formed a clump – add water.
• Material has large chunks – break up material before
putting in mixer drum.
PROBLEM: HYDRAULIC OIL OVERHEATS
POSSIBLE SOLUTIONS:
• Hydraulic oil level in skid steer reservoir may be low.
• Hydraulic oil or oil filter in skid steer may be dirty.
Change oil and filter according to manufacturer’s
recommendations.
• Hydraulic oil reservoir of skid steer may be small. Allow
time for oil to cool down.
PROBLEM: HYDRAULIC HOSE FAILURE
POSSIBLE SOLUTIONS:
• Hydraulic relief pressure setting is very high and may
cause hydraulic hose failure.
• Hoses are worn or frayed – replace hose.
• Hose rating may be too low for hydraulic system
pressure. Replace with higher rated hoses.
• Hose being pinched – reroute hose and refasten.
PROBLEM: MIXER STALLS
POSSIBLE SOLUTIONS:
• Hydraulic system may not be supplying rated pressure
(usually 1850 to 3000 PSI). Consult your dealer.
• Too much load for mixer – reduce amount of material.
PROBLEM: MIXER ROTATES TOO SLOW
POSSIBLE SOLUTIONS:
•Flow control valve needs adjusting.
• Hydraulic system may not be delivering its rated
volume of oil due to wear. Hydraulic pump may need to
be repaired.
• Pinched hydraulic hose.
• Hydraulic oil flow problems on skid steer.
PROBLEM: MIXER WILL NOT TURN
POSSIBLE SOLUTIONS:
•Remote quick-connect couplers not properly con-
nected. Mixer is designed to turn in only one direction.
Reverse hydraulic control lever or switch hoses.
• Flow control valve is in “off” position.
PROBLEM: GEARBOX OVERHEATING
POSSIBLE SOLUTIONS:
•Low on lubricant – fill to proper level.
• Improper type lubricant – replace with proper lubricant.

17
MODEL SS-590 MIXER PARTS LIST

18
MODEL SS-590 MIXER PARTS VIEW

19
HYDRAULIC
MIXER
GEARBOX
PARTS LIST