Ross CDA-10 Operating and maintenance manual

© 2017 CHARLES ROSS & SON COMPANY 1
CHARLES ROSS & SON COMPANY
CHARLES ROSS & SON COMPANY
710 OLD WILLETS PATH
HAUPPAUGE, NY 11788
PHONE: [phone]
FAX: [phone]
www.mixers.com
CDA
DUAL SHAFT MIXER
CDA-10
INSTALLATION, MAINTENANCE AND OPERATING MANUAL

© 2017 CHARLES ROSS & SON COMPANY 2
Table of Contents
CAUTION...............................................................................................................................3
INITIAL INSPECTION.........................................................................................................4
SAFETY FEATURES............................................................................................................5
RENTAL EQUIPMENT........................................................................................................6
INSTALLATION....................................................................................................................7
A. LOCATION...............................................................................................................7
B. LIFTING/RIGGING OF MIXER...............................................................................7
C. MECHANICAL INSTALLATION, LEVELING AND SHIMMING......................7
D. POWER REQUIREMENTS, ELECTRICAL INSTALLATION.............................8
E. LUBRICATION........................................................................................................8
F. MIX CAN...................................................................................................................9
G. THERMOCOUPLE, THERMOWELL.....................................................................9
H. GROUNDING CABLES...........................................................................................9
OPERATION.........................................................................................................................10
A. HYDRAULIC LIFT................................................................................................10
B. MIX CAN................................................................................................................10
C. VARIABLE SPEED CONTROL............................................................................10
D. MIXING..................................................................................................................10
E. VACUUM MIXING................................................................................................11
MAINTENANCE..................................................................................................................12
A. AGITATOR SHAFT SEALS, VACUUM RATED MIXERS................................12
B. BEARINGS.............................................................................................................13
C. GEAR REDUCER...................................................................................................13
D. HYDRAULIC LIFT PACKING...............................................................................14
E. LUBRICANTS LIST................................................................................................15
PARTS LIST - CDA-10........................................................................................................16
SIDE VIEW, CDA-10 ..........................................................................................................18
VACUUM COVER & BEARING HOUSING VIEW - CDA-10.....................................19
HSD BLADE VIEW - CDA-10............................................................................................20
MIX CAN VIEW - CDA-10.................................................................................................21
THERMOCOUPLE ASSEMBLY, LOW PROFILE 1/8”, FLUSH MOUNT................22
APPENDIX - VENDOR PRODUCT INFORMATION....................................................23

© 2017 CHARLES ROSS & SON COMPANY 3
CAUTION
1. All persons involved in the installation, maintenance or operation of this equipment must completely read
and understand the information contained in this and any associated manual(s) prior to installation,
maintenance or operation.
2. Improper use, operation, installation or maintenance of this equipment may result in personal injury or
damage to the equipment or other property.
3. The equipment must only be used for its intended purpose and in accordance with the procedures outlined
in this manual.
4. All federal, state and local codes apply to the installation, maintenance and operation of this equipment and
shall not be superseded or implied to not apply by instructions outlined in this manual.
5. Other codes or safety standards such as OSHA, ANSI or ISO may apply.
6. Guards, limit switches, safety controls or other safety devices provided with the equipment must be in
place and operational prior to operation of the equipment. All rotating and/or moving parts must be guarded
during operation. Do not override, tie back or manipulate any of the safety features.
7. It is the responsibility of the owner and operator to maintain all safety devices in the properly installed
positions and in proper working order at all times. DO NOT OPERATE THIS EQUIPMENT WITHOUT
ALL SAFETY DEVICES INSTALLED AND OPERATIONAL.
8. Other safety devices not provided with the equipment may be required by national, state, local or company
safety codes. These codes must be adhered to and all devices must be installed properly and operational
prior to use.
9. Regular inspection of all moving parts, electrical wiring and safety devices should be part of regularly
scheduled maintenance and daily operating procedures.
10. All state, local and national electric codes apply.
11. Lockout/disable all power to motors and controls prior to performing any maintenance.

© 2017 CHARLES ROSS & SON COMPANY 4
INITIAL INSPECTION
When your ROSS Mixer arrives, inspect the packaging/crating prior to accepting from the shipper for signs of
possible damage during transit. Inspect all packing slips and bills of lading to ensure that all listed parts
boxes or packages have been delivered with the shipment.
Since all shipments are normally shipped FOB the ROSS factory, any damage or loss is the responsibility of
the carrier and should be reported to them immediately. If the terms of the sale are FOB destination, and
there is damage, contact your ROSS representative or the factory immediately. E-Mail/Fax or Mail a copy of
the inspection report and the delivery receipt indicating the problem areas at the time of delivery to:
[email protected]
Charles Ross & Company
710 Old Willets Path
P.O. Box 12308
Hauppauge, NY 11788
Phone [phone]
Fax [phone]
www.mixers.com
Carefully uncrate the machinery. Do not discard the shipping crate or any packing materials until the contents
of the crate/box have been carefully compared with the shipping documents. If any material is unsatisfactory
or missing, notify Charles Ross and Son Company at the above address and phone/fax numbers.
Rental machinery must be returned in its original and reusable packaging or crating to avoid additional
charges. Mark/tag the original crating and store in a secure area.

© 2017 CHARLES ROSS & SON COMPANY 5
SAFETY FEATURES
1. Safety limit switches and/or proximity sensors. For all machines equipped with raise/lower devices,
removable mix cans or other similar features, safety limit switches or proximity sensors are provided. These
switches or sensors are required to be connected to the control systems in such a manner that will prevent
operation of the machine when the machine is in the raised (non-operational) position and/or the mix can is
removed and/or other safety features are not installed properly.
2. Guards and safety grating. All rotating parts or moving parts that may create the possibility of injury are
protected by guards and/or safety grating. These guards or safety gratings are usually bolted in place to
allow access for periodic maintenance. Guards and gratings may not always be installed with safety limit
switches or proximity sensors therefore, it is the responsibility of the owner and operator to ensure that these
devices are properly installed prior to operation.
3. Electrical Controls. All electrical control panels are built to meet the National Electrical Code at the time
of manufacture and are provided with disconnects that shut off power to the control circuits when the control
panel is open. Fuses and thermal overloads are provided to protect the control circuits, motors and other
components from overloads.
4. Raise/Lower Controls. Many machines are equipped with air/oil hydraulic pistons or electronic/motorized
hydraulic lift systems which will raise/lower the mixer shafts, drive systems, mix cans or discharge platens into
and out of the mixing, discharge or operational position. On machines where the operator may be allowed within
close proximity to the rotating shafts, discharge platens or pinch points, two (2) hand operator controls
(momentary spring return and/or push buttons) are provided to keep both of the operators hands away from the
dangerous areas during operation of the lift systems.
5. Emergency stop buttons. Emergency stop buttons (push/pull mushroom) are provided on all operator
control panels to allow for emergency shut down of the machinery. These buttons will stop the machinery in
its current position although shafts and drives will drift/coast to a stop.

© 2017 CHARLES ROSS & SON COMPANY 6
RENTAL EQUIPMENT
1. Crating.
All ROSS rental equipment is shipped in reusable crates or containers made up of heavy duty skids and slatted
crating. Smaller units are shipped in formed foam boxes. These crates/containers should be stored and used for the
return of the rented equipment. A "crate" charge will be assessed if the equipment is returned without the original
crating/container.
2. Cleaning.
All rental equipment is required to be returned completely cleaned and free of product. Since contamination is
always a possibility, an MSD sheet pertaining to the product(s) made on the equipment is required to accompany
the returned equipment.
To insure the safety of our personnel who will be cleaning and/or reconditioning the rented unit, the customer must
include the MSD sheet(s) of the material(s) that have been mixed in the rented unit. The MSD sheet(s) are to be
returned with the rented unit.
If the MSD sheet(s) is not returned with the rented unit the rental will continue until the MSD sheet(s) is received
by our plant.
3. Damaged or worn parts.
Damaged or worn parts will be replaced and billed for upon return of the equipment.
4. Returning process.
When ready to return rented equipment to ROSS:
- Use the original crate/container.
- Secure all loose parts in boxes and secure all boxes to the skid/crate/box.
- Include the operating and maintenance manual.
- Include all auxiliary equipment such as, inverters, heating/cooling units, controls ,etc.
- Include all MSDS sheets.
5. Freight.
All rental equipment is to be returned freight prepaid. The cost of freight on these units returned freight collect will
be billed to you with an additional $250.00 administrative charge.

© 2017 CHARLES ROSS & SON COMPANY 7
INSTALLATION
A. LOCATION.
This CDA mixer is normally supplied as a "floor mounted" design which must be bolted to any substantially level floor
in a location where the required services are available. The "rating" of the area is also of concern and should be
considered prior to installation. Since these machines are typically mounted on hydraulic lifts, the ceiling height and
overhead fixtures must be at an adequate distance off the floor. The floor must be of suitable strength to hold the
combined weights of the mixer, batch, auxiliary equipment, personnel, etc.
B. LIFTING/RIGGING OF MIXER.
1. This CDA dual shaft mixer has been shipped assembled.
2. All components should be handled carefully and protected to eliminate the possibility of damage, twisting or
deforming of the parts and their painted, machined or hard chromed surfaces. Some items may need cardboard or
other material used to protect them from lifting devices such as forks, hooks or straps.
3. The mixing shaft assemblies are especially vulnerable to damage or bending during handling. Contact with the
shafts and blades should be avoided.
4. Lifting of the mixer off of its shipping pallet can be done by wrapping a lifting strap around the upper flange and/or
under the anti-rotation tube support, of the hydraulic cylinder. To avoid damaging the hydraulic cylinder packing and
causing it to leak, do not extend the cylinder by pulling the cylinder rod out of the cylinder housing.
5. Lifting Straps should be used where possible.
6. Before lifting of the mixer can occur, the Mix Can must be removed. Do not lift the Mixer and the Mix Can
together. Connect temporary compressed air pressure to the inlet on the top of the air/oil hydraulic tank/reservoir.
Allow the tank to fill with air and actuate the hydraulic lift to raise the mixer and lift the agitator shafts/blades out of
the Mix Can. When fully raised, the Mix Can will be able to be removed from under the mixer. (See Operating
Instructions)
C. MECHANICAL INSTALLATION, LEVELING AND SHIMMING.
1. The CDA dual shaft mixer is typically supplied fully assembled. The mixer should be placed on a
substantially level, flat and smooth surface. Shim the mixer to level the hydraulic lift cylinder in two
directions at 90-degrees to each other, front (0-degrees) and side (90-degrees) of the hydraulic lift cylinder.
This should provide a relatively vertically leveled installation. Secure the base of the mixer to the floor using
a properly rated bolting system. Shim at all bolting points and at locations between bolts as required. Please
note, the Vacuum Cover may not be level or parallel to the floor or perpendicular to the hydraulic cylinder.
The mixer is designed to allow the front edge (0-degrees) of the Vacuum Cover to be slightly lower than the
rear edge. This is to allow the Vacuum Cover to contact the front (0-degrees) of the Mix Can first and settle
across the top surface of the Mix Can and crush the o-ring to create a seal.
2. The Mix Can will need to be shimmed between the top of the Casters and the bottom of the Caster Pads
(supports on the bottom of the Mix Can) to bring the Mix Can to match the “level” of the Vacuum Hood.
Shims are installed in this location when shipped and extra shims are shipped loose. Each floor and each Mix
Can is different and each will require different shims to bring the Mix Can to the correct and same height and
same orientation to the mixer to create the correct alignment and seal with the Vacuum Cover. Again, here as
with the Mixer installation, the top rim of the Mix Can will not be parallel to the Vacuum Cover when the
Vacuum Cover is raised. The top rim of the Mix Can should be “level” and therefore close to perpendicular
to the Hydraulic Cylinder. When the Mix Can is properly shimmed, the locating and locking pins should fit
easily into the receiving holes.
3. When the Mixer and Mix Can are properly shimmed, leveled and aligned, the Vacuum Cover will contact
the front edge of the upper rim of the Mix Can first, at 0-degrees (front). With the 0-degree location of the
Vacuum Cover and Mix Can just barely touching, the 180-degree location will be approximately 1/8”-3/16”
apart. Allowing the mixer to lower fully should produce a well mated Vacuum Cover to Mix Can crushing
the o-ring and creating the required seal. Also, the OD of the Vacuum Cover and the OD of the Mix Can
should be relatively concentric and the Anchor Blade OD should be relatively equally spaced from the side
walls of the Mix Can when positioned at 0, 90, 180 and 270-degrees and it should be centered in the Mix
Can.

© 2017 CHARLES ROSS & SON COMPANY 8
4. Rotating the Anchor Blade by hand will confirm the Anchor Blade is properly centered and no contact is
being made with the Mix Can ID.
5. Apply Vacuum pressure to the Mixer to test the seal, rotate the Anchor Blade again to reconfirm clearance.
D. POWER REQUIREMENTS, ELECTRICAL INSTALLATION.
1. The CDA is designed to operate on a power supply of either 230 volts or 460 volts, 3 phase, 60 Hertz.
Check all electrical components for the correct power supply before connecting any power source.
2. All electrical installations should be performed by a licensed electrician and conform to the national, state
and local electrical codes.
3. Refer to the electrical schematics specific to the control panel for detailed installation requirements.
4. A disconnect equipped with breakers or fuses should be installed between the power source and the control
panel.
5. Install all the required ground leads and/or grounding cables.
6. To avoid possible damage to the equipment or personal injury, the electrical installation and all electrical
systems must be checked and tested prior to starting the equipment.
a. With the emergency stop button depressed, apply power to the system.
b. Check the line voltage on each leg.
c. If the line voltage is within +/-10% of the rated voltage, apply power to the controls by turning the
disconnect to the "ON" position and/or pulling out the emergency stop button.
d. All systems should have power at this time.
e. DO NOT START THE DRIVES OR MOTORS AT THIS TIME!
f. Check the operation of all limit switches, proximity sensors and other electrically operated safety
devices.
g. Check the rotation of the shaft by "jogging" the drive/motor. Correct shaft rotation will be clock-
wise. If the direction is reversed, Lockout all power to the controls and reverse the connection of any
two of the three main (hot) power leads. Check the direction again before start-up.
h. Check all systems and drives for proper operation and rotation.
CAUTION:
Shafts with product lubricated bushings or single/double mechanical seals should not be run dry. Dry
running will cause premature failure of the bushing or mechanical seal.
E. LUBRICATION
1. Before starting the mixer, all oil/fluid levels for the mechanical seals, bearings, hydraulic lift system and
gear reducer must be checked and properly filled.
2. The oil level in the gear reducer must be checked and properly filled along with the vent plug removed and
reinstalled correctly. Follow the lubricating instructions on the nameplate of the reducer or in the
manufacturer’s literature. A suitable oil is AGMA Lubricant 7EP or 8EP, ISO-ASTM viscosity grade 460-
680. If the mixer is to operate in an unusually high temperature room, over 90 degrees F, a synthetic or heavy
duty oil must be used. Do not mix synthetic and petroleum based oils.
3. The fill plug is on the top of the gear reducer, the level plug is on the side and the drain plug in on the bottom
of the reducer. Refer to the gear reducer catalog in the Vendor Literature section.
4. Hydraulic Oil Reservoir (Air/oil tank).
a. The hydraulic oil reservoir is normally shipped “full” of oil but may require a small amount of oil to bring
it to the required level. If the reservoir is shipped empty it will have to be filled with the proper amount of a
non-foaming hydraulic oil prior to connecting compressed air and operating the hydraulic system. Fill the
reservoir to half way between the high/low marks on the dip stick.

© 2017 CHARLES ROSS & SON COMPANY 9
b. A clean dry source compressed air rated at 80-100psig @ 10cfm will need to be installed to the inlet of the
manual 3-way air control valve located on the top of the air/oil hydraulic reservoir. Hard piping the
compressed air line is recommended. Use the largest hose or pipe permitted. A small air line will cause an
extended time frame to pressurize the reservoir and time to raise the Mixer.
c. After filling the air/oil hydraulic reservoir and installing the compressed air line, the hydraulic cylinder will
need to be bled of all air by using the air bleed valve located on the upper cylinder wall, near the upper flange
of the cylinder. Apply compressed air to the cylinder by moving the 3-way control valve to the "pressure"
location. When the reservoir is pressurized, depress the hand valve to allow oil to flow into the cylinder.
Open the bleed valve on the top/side of the cylinder and allow the air to bleed out of the cylinder. All of the
air is bled when the oil comes out of the bleed valve in a clear stream without any air bubbles.
5. Shaft Seals.
a. As standard, the CDA Agitator Shafts are sealed with a Dry Running Double Flexi-Lip Seal. This Seal is
installed from below (underside of) the Vacuum Cover and requires no adjustment, lubrication or
maintenance. Keep the area around the seal clean and free of dirt/debris to protect the seal and provide a long
life for the seal.
b. As an option, the Agitator Shafts may be sealed at the Vacuum Cover with single mechanical seals. These
mechanical seals and the lower shaft bearings are lubricated with oil. NEVER ALLOW THESE SEALS AND
BEARINGS TO RUN DRY. Check the oil level at the oil gauge sight on the side of the bearing housing/tower and
add oil as necessary to keep this sight gauge full at the center line. Use any good quality multigrade automotive oil
suitable for 250 to 300 degrees F. The upper shaft bearing is lubricated via grease and a grease fitting located
adjacent to the upper bearing.
6. Shaft Bearings. For all CDA mixers with Flexi-Lip Shaft Seals installed or “Atmospheric” designs, the upper and
lower shaft bearings are lubricated via grease and the grease fitting located adjacent to the upper and lower bearings.
A breather is located between the bearings to allow heated air to escape.
7. Motor Bearings. These bearings have been greased at the factory and should be greased every 500 hours
minimum with a premium high temperature synthetic bearing grease if a grease fitting is installed on the motor. Smaller
HP motors will not have grease fittings and will have greased for life sealed bearings.
F. MIX CAN.
1. Before starting the mixing operation the mix can must be securely attached to the mixer can lock and
leveled to the vacuum cover/hood.
2. The can is positioned and held in place by two locking pins located at the back of the can.
G. THERMOCOUPLE, THERMOWELL.
The Thermocouple is located in the Vacuum Cover and/or in the sidewall of the Mix Can. Connect the
Thermocouple to the Control Panel as shown in the electrical wiring schematics. The typical Thermocouple is
a type "J". The Thermocouple wire must be matched with the type of Thermocouple.
H. GROUNDING CABLES.
Grounding cables are recommended to be installed between the Mixer and an earthen ground to dissipate any
potential static charges. Additional grounding cables should be attached from the Mixer to the Mix Can and
other associated/attached equipment.

© 2017 CHARLES ROSS & SON COMPANY 10
OPERATION
A. HYDRAULIC LIFT.
1. The standard hydraulic lift is an air/oil hydraulic system that is raised and lowered using manually
operated controls.
2. The air/oil hydraulic reservoir is normally shipped empty and will have to be filled with the proper amount
of a non-foaming hydraulic oil and a clean dry source of 80-100psig compressed air. Refer to the
"INSTALLATION" section of this manual for specific details.
3. The manual lift controls consist of a 3-Way Air Control Valve which has three (3) positions, pressure,
neutral and exhaust. To raise the Mixer, set the 3-Way Air Control Valve to the pressure side, allow the
air/oil reservoir to pressurize and then while holding the 3-Way Air Control Valve in the “pressure” position,
with your other hand, actuate the Hand Valve (Oil Control Valve) to raise the Mixer. To lower the Mixer, set
the 3-Way Air Control Valve to the exhaust position, allow the pressure to be released, then while holding it
in the “exhaust” position, actuate the Hand Valve (Oil Control Valve). You can regulate the rate of travel via
the Hand Valve (Oil Control Valve).
B. MIX CAN.
Before starting the mixing operation the Mix Can must be securely attached to the Can Lock. The Mix Can is
positioned and held in place by two Locating/Locking Pins. Depending on the locking system, these pins are
either located between the back of the Mix Can (180-degrees) and the Hydraulic Cylinder or on Base
Extensions which are at the floor level. Appropriate grounding cables should also be attached to the Mix Can.
C. VARIABLE SPEED CONTROL.
1. The speed of the agitators can be controlled by using variable frequency speed controllers installed in the
Operator Control Panel or supplied as individual VFD’s. The Control Panel typically includes a color Touch
Screen Control and Display system. Refer to the Operator Control Panel and HMI Manual for specific in-
structions.
D. MIXING.
The art of "Mixology" is not always as simple as just putting all of the materials into the mixer and turning it
on. To achieve the best quality and consistency, proper selection of materials, formulation and equipment
must be matched with proper mixing technique. There are typically 3 stages to the "wet" mixing operation:
- Incorporation.
- Wetting.
- Breakdown of particle clusters (aggregates and agglomerates).
The typical "wet" mixing method is as follows:
1. Add the appropriate amount of the fluid materials, enough to cover the mixing blade(s) that will be
used during the initial mixing process.
2. Turn on the appropriate mixing blade(s) and run at a speed sufficient to allow incorporation of the
next material.
3. If the next material is a powder, meter the powder into the fluid a rate that will allow proper "wet-
ting" of the powders into the fluids. Dumping large lumps into the batch may cause damage to mix-
ing blades and will increase the mixing time.
4. Increase the mixer speed as needed, usually to maintain a vortex.
- Be careful not to "over-vortex" the batch which may allow unwanted air to be incorporated.

© 2017 CHARLES ROSS & SON COMPANY 11
5. When all of the materials have been added, increase the shaft speed of the mixers to the appropri-
ate tip speeds to allow for de-agglomeration/dispersion, mixing/blending and agitation. Proper tip
speeds are as follows:
- Agitation = 400 - 1200fpm.
- Mixing/blending = 2500 - 3500fpm.
- Dispersion = 4800 - 5200fpm.
6. Tip speed formula: Blade dia/12 x 3.1415 x shaft speed = FPM.
E. VACUUM MIXING.
Mixing under vacuum is normally used to remove air from the batch but may also increase the evaporation
of other volatiles such as solvents or wetting agents. The reaction of each formula to vacuum is different and
should be closely monitored during trial runs. The horse power requirements may change when mixing un-
der a vacuum along with the product viscosity. Air attached to "dry" particles or between wet surfaces will
be removed which will effect the rheological aspects of the batch.
1. Induction of dry powders while operating under vacuum is only recommended when introduced
from below the fluid level and into a "shear zone" to prevent dusting and quick wetting of the pow-
ders. Normally this is done through a valve installed in the bottom of the mixing vessel.

© 2017 CHARLES ROSS & SON COMPANY 12
MAINTENANCE
A. AGITATOR SHAFT SEALS, VACUUM RATED MIXERS.
1. Dry Running Flexi-Lip Seals.
The Agitator Shafts, as standard, are sealed with a Dry Running Double Flexi-Lip Seal made from FDA
MF-Teflon with an o-ring installed on the seal OD. This seal is installed from below the Vacuum Cover and
requires no adjustment. Keep the area around the seal clean and free of dirt/debris to protect the seal and
provide a long life for the seal.
To replace the Agitator Shaft FlexiLip Seal, remove the Blades and Seal Retainer Plates (if any), clean the
shaft ** and pull the FlexiLip Seal from its housing. Clean the area where the seal contacts the shaft (See
**IMPORTANT NOTE** below) and the ID of the seal housing. Please use caution to not damage the shaft
surface since the shaft is polished to a 240-grit finish to provide the Lip of the seal with the “required”
smooth, 240-grit surface surface finish for the seal lip face to run on. A rough, scratched or damaged surface
will damage or destroy the seal (causing the seal to produce black “flakes”) and reduce the seals ability to
create/hold a proper seal.
**IMPORTANT**
When new, the FlexiLip Seal will “deposit/transfer” a thin layer of Teflon to the stainless
steel shaft surface. This will appear as a “witness” mark in the area where the lip directly
contacts the shaft. When replacing seals, it is important to remove this material and return
the shaft surface to its original 240-grit finish. This is done by using 240-grit sand paper
and then finish using a White Scotch-Brite Hand Pad 7445. The shaft surface should
appear as new with all scratches, damage and the Teflon “witness mark” layer completely
removed.
To install the new seal, using a thin piece of plastic shim stock, wrap the bottom of the Shaft with the plastic
shim stock to form a cone. Fit the new FlexiLip Seal over the cone and work it over the shaft OD. Move the
seal and the shim stock together up the shaft until the seal reaches its location. Slide the seal off the shim
stock and press the seal into the bore/housing. Please note that if there is no external seal retainer plate that
bolts to the Housing or Gearbox, the seal bore hole will have a .010” lip on its ID which the seal must be
pushed past. This lip helps maintain the seal location in the bore hole. DO NOT LUBRICATE THE SEAL.
Only the o-ring located on the OD of the FlexiLip Seal can be lubricated, if required.
** Please note*** When new, FlexiLip Seals can produce a minor amount of “flakes” during their “wear-
in” period. The wear-in time period depends on the shaft diameter, seal size and shaft speed. Typically the
time frame is less than 10-minutes at full speed. The flaking material should be removed by gently wiping
the area. Do not disturb the seal. If flaking persists, either the seal lip face(s) is damaged, the shaft surface is
damage or the seal lip faces have dirt, debris or lubrication on them. Repeat the above procedure with new
seals.
For additional questions or further guidance, please contact Ross directly.

© 2017 CHARLES ROSS & SON COMPANY 13
2. Mechanical Seals, single.
If Single Mechanical Seals are installed, the procedure is generally the same as above minus the plastic shim
stock. Refer to the Vendor Literature section for more specific details regarding the Mechanical Seals. Do not
lubricate the seal faces, only the o-rings.
1. Under normal conditions, the mechanical seals require no routine maintenance. Check the oil level in the bearing
tower prior to every use and add or replace as necessary.
2. If a seal starts to leak, it must be replaced.
3. Drain the oil from the housing by removing the threaded pipe plug located to one side of the shaft.
4. Remove the Seal Cap. The Stationary portion of the seal will be installed in the seal cap.
5. The Rotary portion of the seal is installed up and inside of the housing and is in contact with the lower bearing.
The seal may have “set screws” that hold the rotary portion of the seal to the shaft. These set screws must be
properly loosened to allow the rotary portion of the seal to be removed. Once free, pull the rotary seal down the
shaft, out of the housing and off the end of the shaft.
6. After removal, examine the seal for signs of corrosion. If corrosion is present, consult the factory as a
replacement seal will require special materials compatible with the your formulas components. Install the new seal
per manufacturer’s instructions. Do not lubricate the seal faces during installation, mechanical seals must
be installed "dry" otherwise they will not seal.
a. All O-Rings on the seal caps should be replaced whenever a new seal is installed.
B. BEARINGS.
1. The upper and lower bearings in the Standard Configuration for a VACUUM RATED MIXER with Dry
Running Flexi-Lip Seals and an ATMOSPHERIC RATED MIXER without seals, are lubricated by grease and
should be greased regularly or at least every 500 hours. If a bearing makes an unusual noise or runs unusually hot, it
must be replaced. Contact the factory for replacement.
a. Remove the belts, pulleys and bushings from the mixer shaft.
b. Loosen the set screws holding the outer race of the bearing.
c. Loosen the set screws on the locking collar/inner race of the bearing.
d. Remove the bearing.
e. Remove the mechanical seal cap and mechanical seal assembly.
f. Remove the internal snap ring.
g. Remove the bearing.
2. For VACUUM RATED MIXERS equipped with Single Mechanical Seals (Oil Lubricated), the bottom shaft
bearings used in the bearing housing/tower in the VACUUM RATED MIXER are lubricated by the same oil as
the mechanical seals in the tower assembly. If excessive noise or heat is detected, these bearings will most likely
require replacement. Refer to the tower assembly drawing for proper removal and replacement.
a. Remove the mechanical seal cap and mechanical seal assembly.
b. Remove the internal snap ring.
c. Remove the bearing.
3. The upper bearings in all MIXERS are lubricated by grease and should be greased regularly or at least every
500 hours. If a bearing makes an unusual noise or runs unusually hot, it must be replaced.
Contact the factory for replacement.
a Remove the belts, pulleys and bushings from the mixer shaft.
b. Loosen the set screws holding the outer race of the bearing.
c. Loosen the set screws on the locking collar/inner race of the bearing.
d. Remove the bearing.
C. GEAR REDUCER.
The gear oil in the Anchor Gear Reducer should be changed after the initial 100 hours of operation, and
thereafter, at regular intervals of 2500 hours or as recommended by the manufacturer. Refer to the gear
manufacturer’s manual for additional information, lubrication types and correct volume of oil.

© 2017 CHARLES ROSS & SON COMPANY 14
D. HYDRAULIC LIFT PACKING.
1. The chevron style main packing consists of seven (7) layers: one (1) split top binder, one (1) split chevron oil seal
layer, four (4) continuous individual chevron oil seals and one (1) split bottom binder.
2. Chevron packing is of the non-compression and self-adjusting type. Oil pressure against the inverted “v” forces
the packing to spread, sealing it against the piston and the inside of the cylinder wall.
3. To replace the Chevron packing:
a. Raise the machine to a convenient working height and support the drive bonnet using an appropriate
supporting system. This support system must be capable of holding the drive bonnets weight.
b. When the drive bonnet is securely supported, loosen the bolts that hold the drive bonnet to the hydraulic
cylinder and lower the cylinder from the drive bonnet.
c. If the cylinder fails to lower, the packing may be too tight and will need to be loosened.
d. After the cylinder has been completely lowered, release all pressure from the air/oil system and
disconnect the air pressure line from the oil reservoir.
e. Remove all of the screws from the packing gland located on the top of the cylinder and remove the
packing gland with the wiper ring attached.
f. Check the condition of the wiper ring visually. If it looks to be in good condition, invert the packing gland/
wiper ring assembly and slip it over the cylinder and slide it up and down. If the wiper appears to have a
sloppy fit, shows signs of wear or damage or is hard to fit, it should be replaced.
g. If the wiper needs to be replaced:
1. Pull out the old wiper and thoroughly clean the groove.
2. Gently tap the new wiper into the groove with a fiber hammer, a lap joint will result.
3. Pull out both ends of the joint, fit the ends together and reinsert into the groove.
4. A loop will appear on each side of the inlet.
5. Work out loops by tapping outward in each direction from the fitted joint. Continue until the
loops disappear.
6. NOTE: You must begin the composition wiper split joint 180 degrees (opposite) from the grease
fitting.
7. To ensure a smooth fit, invert the packing gland with the new wiper and fit it over the cylinder.
Tap the gland ring with a fiber hammer to smooth the wiper surface.
h. Remove the old packing using a packing puller one layer at a time until the bronze guide ring is exposed.
i. Thoroughly clean the packing box.
j. Coat all of the new packing rings with a film of hydraulic oil.
k. Begin to install the new packing by inserting the split bottom starter ring into the bottom of the packing
box and on top of the bronze bushing.
l. Use an appropriate tool to feather the edges of the chevron packing into the packing box and around the
cylinder.
m. Continue to replace the new packing pieces row by row until all rows are in place.
n. When installing split packing rings, rotate the split position to prevent the splits from lining up with each
other.
o. Install the packing gland/wiper assembly and bolt into position.
p. Lubricate the seals using a medium chassis grease.
q. Pressurize the system, bleed the air from the cylinder, raise the cylinder up to the bonnet and bolt the
cylinder to the bonnet.
r. Raise the cylinder and bonnet slightly off the supports and check for leaks. Tighten the packing as
required.
s. Remove the supports and operate the lift up and down several times.

© 2017 CHARLES ROSS & SON COMPANY 15
E. LUBRICANTS LIST.
Below is a specifications list of the lubricants used in this machine. Please note that specific brand names or
manufacturers are not mentioned. Your local grease/oil distributor will be able to provide a product based on these
specifications. Matching brand names is not important. Also, refer to the Vendor Literature for more specific
information.
1. Reducer - Synthetic AGMA lubricant 7EP or 8EP, ISO-ASTM viscosity grade 460-680.
2. Bearings - Any high temperature, solvent resistant, synthetic bearing grease could be used.
3. Hydraulic Lift System - Any non-foaming, hydraulic oil with an ISO-ASTM viscosity grade 46 (ISO-46,
AW-46) or equivalent.
4. Mechanical Seals - Non-abrasive oil with specific gravity greater than 0.8 with an ISO-ASTM viscosity grade
22 (ISO-22, AW-22) or a similar 10 weight oil.

© 2017 CHARLES ROSS & SON COMPANY 16
PARTS LIST - CDA-10
Part # Item # Description Quantity
1 Bonnet 1
2 Motor, 3HP, 1800rpm, Anchor Blade 1
3 Pulley, 3.15 Dia, Driver, Anchor Blade 1
4 Bushing, 1-1/8", Driver, Anchor Blade 1
5 Belt, V, Anchor Blade 2*
6 Pulley, 4.75, Driven, Anchor Blade 1
7 Bushing, 3/4", Driven, Anchor Blade 1
8 Reducer, Ratio 15.32:1, 1-7/16" Bore, Anchor Blade 1
9 Pulley, 4.12", Driven, Disperser Blade 1
10 Bushing, 1-3/16", Driven, Disperser Blade 1
11 Belt, V, Disperser Blade 2*
12 Pulley, 6.5", Driver, Disperser Blade 1
13 Bushing, 1-1/8", Driver, Disperser Blade 1
14 Motor, 5HP, 3600rpm, Disperser Blade 1
15 Cover, C/S, Bonnet 1
16 Non-rotation rod 1
17 Hydraulic oil reservoir, 10gal 1
18 Control Valve, 3-way 1
19 Hydraulic Control Valve, Hand 1
20 Exhaust Muffler 1*
21 Hydraulic Cylinder, 5" Dia x 20" Stroke, 42" OAH 1
22 Wiper, Hydraulic Cylinder 1*
23 Packing Gland, Hydraulic Cylinder 1
24 Packing, Chevron, Hydraulic Cylinder 1*
25 Safety Limit Switch & Lever Arm, Mix Can 1
26 Locking Pin, Can Lock & Mix Can 2
27 Can Lock 1
28 Mix can, 10 gallon 1
28A Thermocouple Assembly, Flush mount, Type J (Optional) 1
29 Shaft, Disperser, SS 1
30 Disperser Blade, 3-1/2" Dia x 1/2" Bore, SS 1*
31 Screw, SS 1/2-13 x 1" 1
32 Lock Washer, SS, 1/2" 1
33 Shaft, Anchor, SS 1
34 Cap, Anchor Shaft, SS 1
35 Key, Anchor Shaft, SS, 1/4" x 1/4" x 1-3/4"L 1
36 Screw, 1/2-13 x 1-3/8 1
37 Anchor Blade, SS 1
37A Teflon Scrapers (Optional) 1 set
38 Cover, Vacuum, SS, 10 gallon 1
38A Thermoprobe, type "J" (Optional) 1
39 Disperser Tower Assembly Housing, CS 1
40 Safety Limit Switch & Roller Arm, Height 1
41 Anchor Tower Assembly Housing, CS 1

© 2017 CHARLES ROSS & SON COMPANY 17
PARTS LIST - CDA-10
Part # Item # Description Quantity
42 Vent/Filter/Breather, Lubricating Oil, Tower Assemblies 2
43 Sight Port, Oil Level, Tower Assemblies 2
44 Bearing, Sealed, Upper, Disperser Shaft 1*
45 Bearing, Sealed, Upper, Anchor Shaft 1*
46 Grease Fitting 2
47 Snap Ring, External, Anchor Shaft Lower Bearing 1
48 Bearing, Spherical Roller, Lower, Anchor Shaft 1*
49 Snap Ring, Internal, Anchor Shaft Lower Bearing 1
50 Bearing Nut & Lock Washer, Anchor Shaft Lower Bearing 1ea.
51 Mechanical Seal, Anchor, Single Rotary (Complete w/51a) 1*
51a Mechanical Seal, Anchor, Single Stationary (Complete w/50) 1*
51b Lip Seal, Teflon. (Option) 1*
52 Cap, Mechanical Seal, Anchor Tower Assembly, SS 1
53 Misc. Nuts & Bolts -
54 O-Ring, Anchor Mechanical Seal Cap 1
55 O-Ring, Anchor Tower Assembly to Cover 1
56 Cap, Mechanical Seal, Disperser Tower Assembly, SS 1
57 O-Ring, Disperser Mechanical Seal Cap 1*
58 Mechanical Seal, Disperser, Single Rotary (Complete w/58a) 1*
58a Mechanical Seal, Disperser, Single Stationary (Complete w/58) 1*
58b Lip Seal, Teflon. (Option) 1*
59 Snap Ring, Internal, Disperser Shaft Lower Bearing 1
60 Bearing Nut & Lock Washer, Disperser Shaft Lower Bearing 1ea.
61 Bearing, Spherical Roller, Lower, Disperser Shaft 1*
62 Snap Ring, External, Disperser Shaft Lower Bearing 1
63 O-Ring, Cover, 3/8" Dia. 1*
64 O-Ring, Disperser Tower Assembly to Cover 1
65 Ball Valve, 1" FTBV, SS w/Teflon Seats 1
65a Ball Valve Repair Kit, 1" -*
65 Ball Valve, 2" FTBV, SS w/Teflon Seats 1
65a Ball Valve Repair Kit, 2" -*
66 Caster, Swivel, 4" w/Brake 2
67 Caster, Rigid, 4" 2
68 Shims, Casters, to level mix can to Vacuum Cover Set
69 Ports, Inlet/Outlet, Mix Can Cooling/Heating Jacket, 3/4" -
70 Frequency Inverter, 3HP, Nema 1, 230 or 460 volt (Optional) -
71 Frequency Inverter, 5HP, Nema 1, 230 or 460 volt (Optional) -
72 Operator Control Station, XP or Nema 12 (Optional) -
- Digital Temperature Readout or Controller (Optional)
- Digital Ammeter (Optional)
- Digital Tachometer (Optional)
73 Vacuum Pump (Optional) -
* Indicates Recommended Spare Parts

© 2017 CHARLES ROSS & SON COMPANY 18
SIDE VIEW, CDA-10

© 2017 CHARLES ROSS & SON COMPANY 19
VACUUM COVER & BEARING HOUSING VIEW - CDA-10

© 2017 CHARLES ROSS & SON COMPANY 20
HSD BLADE VIEW - CDA-10