Cleveland RXT, RXTO, RXTM, RXTS, APD Installation, Operation & Maintenance Instructions Manual

INSTALLATION,
OPERATION &
MAINTENANCE
INSTRUCTIONS FOR
CLEVELAND MIXER
RXT & APD AGITATORS

Models: RXT, RXTO, RXTS,
RXTM, RXT - 2M
Models: APD, APDO, APDS,
APDM, APD-2M, SDM, SDS

RXT O&M 06/25/2015 JMN

PAGE INDEX

PAGE TOPIC
1 RECEIVING/UNPACKING
2 INSTALLATION PREP, PRE INSTALLATION CHECK LIST
3 FASTENERS, BOLT TORQUE VALUE CHART
4 REDUCER LUBRICATION DETAILS
5 PLUS, COMMISSIONING, LONG TERM STORAGE
6 SDM FILL QUANTITY
7 APD FILL QUANTITY
8 RXT FILL QUANTITY
9 LUBRICATION CHART
10 INSTALLATION NOTES­11-11b FIXING ELEMENT INSTALLATION
12 - 13 INSTALLATION NOTES
14 EXPANSION CHAMBER
15 AUTO LUBRICATOR
16 STEADY BEARING TRIPOD ASSEMBLY
17 PACKING GLAND/STUFFING BOX SEALS
18-19 IMPELLERS AND COUPLINGS
20 SIDE ENTRY MIXERS
21 SIDE ENTRY MIXER SHUT-OFF PLUG
22 TROUBLE SHOOTING

RXT O&M 06/25/2015 JMN

RXT & APD AGITATOR MANUAL_09-17-15_JN

RECEIVING AND UNPACKING YOUR MIXER

Be sure to use care when uncrating, unpacking, lifting and handling your mixer. Certain parts
such as impeller blades, hubs, couplings, steady bearings, seals, keys, hardware and other
mixer accessories may be packed in boxes inside of crates or bolted down to skids. Do not
discard any packing crates or materials until you've accounted for all the parts of your mixer
assembly.

Make sure to check the packing slip for your shipment to make sure you've received the
correct number of skids, crates and cartons. If any of the shipment was not delivered or
delivered with visible damage, please contact the carrier to report the missing pieces or
damage. Once you've contacted the carrier, please contact Cleveland Mixer so we can
document the issue.

The weight of the mixer will be indicated on
the mixer's assembly drawing and also in the
shipping documents. It's important that the
mixer be moved and installed by
professionals. Any attempt to lift or move the
mixer by an unqualified party can result in
serious injury and catastrophic damage to the
mixer.

The drive end of the mixer might be top
heavy. Never upright a mixer drive without the
proper bracing. Doing so might result in the
drive falling over and causing injury or
damage to equipment.

Never lift the drive end of the mixer by the
motor. Make sure when lifting shafting to keep
the ends level so not to bend the shafting.
After uncrating the mixer and parts, stage
them on a level surface preferably indoors or
in a clean dry location.

Some mixer parts such as shaft pullers are
supplied to perform future maintenance.
Cleveland Mixer suggest labeling these parts
and putting them into storage.

Cleveland Mixer suggests checking
your unpacked mixer assembly parts
against your packing slip and
assembly drawing to make sure
everything is accounted for before
assembling your mixer.

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RXT & APD AGITATOR MANUAL_09-17-15_JN

INSTALLATION SITE

Mixer drives must be properly installed if they are to produce the rated torque. Improper
installation may lead to oil leaks, reduced life or even catastrophic failure. Cleveland Mixers
are intended to be installed under the following conditions:

Unimpeded airflow to and around the mixer.•
Accessibility to oil drain, motor, seal and breather plugs.•
Mounting surfaces must be level, torsional rigid and dampened against vibration.•
Unless special measures are taken, the immediate vicinity around the mixer drive should•
not be exposed to any aggressive or corrosive substances or gases.
If the mixer has a steady bearing, the shaft and tripod must be properly aligned.•
All bolt connection surfaces must be clean and free from contamination or corrosion.•
Tank walls must be designed to withstand forces created by the mixer.•
Sufficient headroom over the mixer for installation and to be able to perform annual•
maintenance on the mixer.
Designed input voltage or air pressure to run motor. Access to flush materials for seals•
when required.

The responsibility for the design and construction of the support foundation and tank is with
end user. The foundation must be adequate to withstand normal operating loads and possible
overloads while maintaining alignment to attached system components under such loads.

An engineered structural steel foundation should be designed to provide adequate rigidity
and prevent loads from distorting the housing or cause misalignment of internal gears and
shafts.

When flange-mounting the mixer, the bulk head plate must be engineered to minimize
buckling distortions and support the cantilevered weight of the mixer.

If a concrete foundation is used, allow the concrete to set firmly before bolting down the
mixer. Grout structural steel mounting pads and bolts of sufficient size into the concrete to
adequately distribute the load stress onto the concrete foundation.

The mixer must be mounted in the designed position in order to stay properly lubricated.
Consult Cleveland Mixer before making any changes to the mixer or mounting position.

PRE INSTALLATION CHECK

Mixers are unpacked and all parts are accounted for•
The installation site meets requirements listed above•
A professional is onsite with the correct equipment to safely and securely lift the mixer•
and it's components into position
A professional electrician is onsite to wire the motor/drive•
You have all the necessary tools to install the mixer including a torque wrench (reducer•
hardware will be metric)
You've read through the O&M manual for the mixer, the manual for the motor and•
manuals for mechanical seal or speed drive (if applicable).
The tank is empty, clean and you have access to work inside to install impellers.•
(if your mixer was supplied with a steady bearing assembly) Your steady bearing tripod•
has been laser aligned with the mixer shaft and welded in it's designated location.

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RXT & APD AGITATOR MANUAL_09-17-15_JN

FASTENERS

Tighten all fasteners to the values shown unless specifically instructed to•
do otherwise.
Lubricate all fasteners at assembly with grease, oil or anti-seize material•
If fasteners cannot be lubricated, use dry torque spec provided on chart.•
Loose hardware can cause catastrophic damage. It is very important to•
check all fasteners at scheduled maintenance intervals.
If your process is corrosive or sanitary check the wetted hardware to•
make sure it is the correct grade before assembly.
Always use washers and lock washers if they were provided.•

USA

Standard

THREAD

SIZE

FT LB DRY

GRADE 5 GRADE 8 316 STAINLESS STEEL

FT LB

LUBED

FT LB DRY

FT LB

LUBED

FT LB DRY

FT LB

LUBED

1/4-20 8 6.3 12 9 6 5

5/16-18 17 13 24 18 11 10

3/8-16 30 23 45 35 20 17

7/16-14 50 35 70 50 33 28

1/2-13 75 55 110 80 45 38

9/16-12 110 80 150 110 59 50

5/8-11 150 110 210 160 96 82

3/4-10 260 200 380 280 131 111

7/8-9 430 320 600 450 202 172

1-8 640 480 910 680 299 254

Calculated tightening torques are based on conventional 60°F, clean and dry or lubricated
(as indicated above) thread. Standard fasteners will be supplied with a split lock washer.
Cleveland Mixer recommends a minimum of grade 5 (ASTM A449) for all hardware to 1-8 and
grade SAE 8 for larger sizes.

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RXT & APD AGITATOR MANUAL_09-17-15_JN

REDUCER LUBRICATION

Proper gearbox lubrication is essential in order to reducer friction, heat and moisture. Lubricants reduce heat and wear
by inserting a protective "fluid boundary" between mating parts and preventing direct metal to metal contact.
Lubricants also help prevent corrosion and oxidation, minimize foaming, improve heat transfer, optimize reducer
efficiency, absorb shock loads and reduce noise.

Most reducers used with Cleveland Mixers are shipped from the factory with a pre-determined oil fill level in
accordance to the specified reducer size and mounting position.

Cleveland Mixer recommends an oil change 3 months after startup to flush the gear case of any debris caused by the
reducer's wear-in period. Drain the oil from the reducer, take a look to make sure the oil looks clean and clear (If the

original oil is foamy and burnt looking or has chunks of metal in it, please contact the factory for assistance). Refill the
reducer with the specified measured amount of the specified oil (typical Mobil SHC 630 series). Once the original oil is

changed out, Cleveland Mixer recommends changing the oil and adding grease to the bearings once per year for the
life of the mixer.

Oil viscosity, or the oil's resistance to shear under load, is often considered the single most important property of any
gear oil. You might consider making a change to the oil viscosity to improve performance when operating the mixer in
an extremely low or high temperature. The oil supplied with the mixer from the factory is rated for use with an ambient

temperature range of 31°F-176°F. To prevent the reducer from overheating, the internal temperature of the reducer
should never exceed 220°F.

Routine oil analysis, sound lubrication practices and good tracking of oil performance trends will help extend the life of
your reducer and maximize the workload performance of your mixer. APD units size 4 and up will come with an oil
overflow canister which must be installed. The canister needs to be upright with the hose down toward the reducer. the
canister will have a rubber plug in the breather pin which must be removed before operating.

Lower bearing grease port

Horizontal shaft orientation

Oil expansion chamber vent
(rubber plug must be removed for vent to work)

Auto lubricator for motor adapter
(motor sizes 250 and up)

Oil expansion chamber
connection & oil fill port

Cap plate assembly

(under side)oil drain plug

Lower bearing grease port

Vertical shaft orientation

APD Reducer / M5
Position (top entry)

Oil Level - measured amount
Oil Grade - synthetic

Foot mount
connection

(under side)oil drain plug

Lower bearing grease port

Oil fill port Cap plate assembly

Auto lubricator for motor adapter

Oil fill port

Oil fill port

(motor sizes 250 and up)

Vertical shaft orientation

SDM Reducer / M4
Position (side entry)

Oil Level - measured amount
Oil Grade - synthetic

Cap plate assembly

RXT Reducer / M5
Position (top entry)

Oil Level

OIl Grade - synthetic

(under side)oil drain plug

- measured amount

RXT, APD & SDM STANDARD MOUNTING POSITIONS

consult factory for mounting positions not shown, for top/angle mounted units use M5

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RXT & APD AGITATOR MANUAL_09-17-15_JN

PLUGS

AUTO VENT DRAIN PLUG FILL LEVEL PLUG

(MUST BE OPENED BEFORE OPERATING)

COMMISSIONING

Prior to mixer start-up, complete the following:

Check the lubricant and be sure that the gear unit is filled with the•
proper oil type, to the proper level, as determined by the mounting
position (this info will also be indicated on the mixer's ID tag).
Check to make sure all breather vents are open•
Check to make sure the oil expansion chamber (if one was•
provided) is installed correctly.
All mounting hardware is torqued to the appropriate value (not•
torqueing the bolts can create an unbalance).
If a mechanical seal is required, the seal was installed/set according•
to the manufacturer's requirements, the shipping clips are removed,
the seal has lubrication (if it's not a dry running seal), the seal has
been pressure tested.
The motor is wired to run in the correct direction with the•
appropriate voltage and needed amperage to run the motor.
The shaft and impeller assemblies are properly installed. If a steady•
bearing was supplied, the SB was laser aligned with the reducer
output after the reducer was mounted on the tank. The shaft should
be straight to .001" per inch.
The mixer has been test bumped before entering into normal•
operation.

LONG TERM STORAGE

Store the reducer in its designed mounting position in accordance with•
the specified oil-fill level in a clean, dry environment. Avoid temperature
fluctuations within the range of 32°F - 104°F and relative humidity
conditions in excess of 60%.
Keep shaft sections level and flat, preferably crated to avoid warping•
and scoring the metal. Coat the shaft, impellers, hubs, keys, couplings
(any metal parts) etc. with grease to prevent rust and corrosion.

(continued on next page)

PAGE 5

RXT & APD AGITATOR MANUAL_09-17-15_JN

LONG TERM STORAGE

(continued from previous page)

Store the mixer in an area away from shock and vibration.•
Once every 2-3 months, rotate the output shaft 10-20 revolutions to keep•
the gears and bearings drying out and seizing up.
Avoid direct exposure to the sun or UV light and aggressive or corrosive•
materials in the environment.
Drain the oil and refill the reducer with fresh oil before putting the mixer•
back into operation.
Your mixers motor will come supplied with it's own set of operating and•
maintenance instructions. Please follow those instructions for long term
storage of the motor.
If your mixer requires a mechanical seal, drive unit or any other•
components supplied with a separate manufacturers operation and
maintenance manual, please follow those instructions for long term
storage of those components.

OIL FILL QUANTITY, MODEL SDM - SIDE ENTRY

MIXER MODEL UNIT OF MEASURE FILL QUANTITY

QUARTS 2.01

SDM-2

LITERS 1.90

QUARTS 3.44

SDM-3

LITERS 3.25

QUARTS 5.02

SDM-4

LITERS 4.75

QUARTS 7.93.

SDM-5

LITERS 7.50

QUARTS 12.68

SDM-6

LITERS 12.00

QUARTS 21.24

SDM-7

LITERS 20.00

QUARTS 31.71

SDM-8

LITERS 30.00

NOTE: SDM units do not require the use of an oil expansion chamber.
The breather plug must be positioned above the oil fill line. Cleveland
recommends changing the oil once per year.

PAGE 6