Republic Manufacturing RB-SERIES Manual

CE Certification applies only to blower retro kits (motor not included)
R
MANUFACTURING
EPUBLIC
RB-SERIES
CENTRIFUGAL BLOWER
INSTALLATION & OPERATING INSTRUCTIONS
RB500 • RB800 • RB1200HC
RB2000 • RB2400 • RB4000 • RB4002
OM001 Rev.A

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Republic Centrifugal Blowers
RB500 • RB800 • RB1200HC • RB2000 • RB2400 • RB4000 • RB4002
Installation & Operating Instructions
Republic Manufacturing®
5131 Cash Road
Dallas, TX 75247
[phone]
www.republic-mfg.com
[e-mail]
Warning
Important
Service procedures beyond the scope of this manual should only be performed by trained service personnel
at Republic Manufacturing.
Read the following safety instructions carefully. Disconnect blower from electrical source using an approved
lockout/tagout procedure before attempting service

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Table of Contents
Safety Instructions ........................................................................................................................................5
Lockout/Tagout Procedures ........................................................................................................................6
Blower Description and Model Identication.......................................................................................... 6
Equipment Arrival and Inspection ............................................................................................................7
Storage Conditions ....................................................................................................................................... 7
Long Term Storage...........................................................................................................................................................7
Suitability & Environmental Conditions...................................................................................................7
Space Required for Installation................................................................................................................... 7
Installation .....................................................................................................................................................8
Frequency of Inspection .............................................................................................................................. 8
Specications and Dimensional Data........................................................................................................ 9
RB500 Dimensions ..........................................................................................................................................................9
RB800 Dimensions ........................................................................................................................................................10
RB1200HC Dimensions ................................................................................................................................................11
RB2000 Dimensions ......................................................................................................................................................12
RB2400 Dimensions ......................................................................................................................................................13
RB4000 Dimensions ......................................................................................................................................................14
RB4002 Dimensions ......................................................................................................................................................15
RB4000 Pulley Center Distances..................................................................................................................................16
Blower Positions.............................................................................................................................................................17
Motor Selection Guidelines.......................................................................................................................18
Motor Wiring and Start-Up ......................................................................................................................20
Exploded Parts Drawings ..........................................................................................................................21
RB500 Exploded View...................................................................................................................................................21
RB800 Exploded View...................................................................................................................................................22
RB1200HC Exploded View...........................................................................................................................................23
RB2000 Exploded View.................................................................................................................................................24
RB2400 Exploded View.................................................................................................................................................25
RB4000 Exploded View.................................................................................................................................................26
RB4002 Exploded View.................................................................................................................................................27
Balanced Bearing Housing Assembly..........................................................................................................................28
Water-Cooled Balanced Bearing Housing Assembly................................................................................................29
Tension Pulley Assembly...............................................................................................................................................30

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Drive Belt Information...............................................................................................................................31
RB500/RB4000/RB4002 Belt Information..................................................................................................................31
RB800/1200HC/RB2000 Belt Information.................................................................................................................32
RB2400 Belt Information ..............................................................................................................................................33
RB500 Belt Replacement Procedure............................................................................................................................34
RB800/RB1200HC/RB2000/RB2400 Belt Replacement Procedure ........................................................................35
RB4000/RB4002 Belt Replacement Procedure...........................................................................................................41
Tension Pulley Replacement Procedure......................................................................................................................42
Motor Pully Information ...........................................................................................................................43
Motor Pulley Installation ..............................................................................................................................................44
Motor Pulley Removal Procedure................................................................................................................................45
Air Filter Information ................................................................................................................................48
RB500 Filter Assembly ..................................................................................................................................................48
RB800/RB1200HC/RB2000/RB2400 Filters...............................................................................................................49
HEPA Filter Element .....................................................................................................................................................55
Enclosures ....................................................................................................................................................56
RB800/1200HC Low Prole Enclosure.......................................................................................................................56
RB800/1200HC High Prole Enclosure......................................................................................................................57
RB2400 Enclosure ..........................................................................................................................................................58
RB4000 Painted Aluminum Enclosure .......................................................................................................................59
RB4000 Stainless Steel Enclosure.................................................................................................................................60
Leveling Pad Assembly..................................................................................................................................................61
Recommended Maintenance Schedule for Republic Blowers .............................................................62
Filter Maintenance .........................................................................................................................................................62
HEPA Filter Maintenance .............................................................................................................................................62
Enclosure Filter Maintenance ......................................................................................................................................62
Bearing Maintenance.....................................................................................................................................................63
Belt Maintenance............................................................................................................................................................63
Motor Pulley and Bushing Maintenance ....................................................................................................................64
Troubleshooting Guidelines......................................................................................................................66
In the Event of a Breakdown.....................................................................................................................68
When to Ship the Blower Back to Republic............................................................................................68
Disabling, Dismantling, and Scrapping of Blower.................................................................................68
Warranty Terms and Conditions..............................................................................................................68

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Safety Instructions
1. Always use qualied electrical and mechanical personnel for installation and maintenance of Republic Blowers and
motors.
2. Disconnect the electrical power at the motor starter, fuse box or circuit breaker before working on the system. Take
special precautions to make sure the power cannot be turned on while you are working on the blower. Use an
approved lockout/tagout system.
3. Make sure the motor is electrically grounded, the mounting bolts are properly secured, and all guards are in place
before start-up.
4. Wear safety glasses and earplugs when working on the blower, air knife or discharge nozzles within
a Republic Blower system.
5. Do not operate blower/motor assembly with the belt guard removed.
6. Do not operate blower with the outlet open to atmosphere. Connect system piping or buttery valve to prevent
overloading the motor. Check the final installation for proper amp loads.
7. Keep all tools, loose clothing and hands away from rotating or moving parts while the unit is running. Never run the
blower unit without the belt guard installed.
8. Inspect the blower at regular intervals for damaged or worn parts. Replace damaged parts immediately! Do not
connect or turn on a damaged blower!
9. Inspect the inlet air lter at regular intervals and replace when necessary. A dirty air lter can cause improper blower
performance.
10. Flanged blower housing gasket must be installed. Check for leaks.
11. Ensure blower rotation is correct.
12. Use only genuine Republic Blower brand replacement parts.
13. Refer to Troubleshooting section of manual.
14. Make sure to install the inlet air lter or piping to blower inlet before starting the blower/motor.
15. Water, other liquids, aggressive or inammable gases and vapors may not be handled. Handling of inammable or
aggressive gases and vapors is only possible with special versions that have not been CE Certied.
PROTECT EYES & EARS
Moving parts can crush and
cut.
Do not operate with guard
removed.
Lock-out/tagout before
servicing.
WARNING

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Blower Description and Model Identication
Republic Manufacturing Centrifugal Blowers are industrial grade centrifugal blowers capable of producing high velocity air at low
operating costs. Six models are available:
RB500: Compact Model with or without Motor. 3-7.5 HP (2.2 kW- 5.6 kW) Motor Sizes
RB800: Compact Model with or without Motor. 3-10 HP (2.2 kW- 7.5 kW) Motor Sizes
RB1200HC: Standard Model with or without Motor. 5-25 HP (3.7 kW-18.6 kW) Motor Sizes
RB2000: Standard Model with or without Motor. 20-40 HP (14.9 kW- 29.8 kW) Motor Sizes
RB2400: Dual Headed Model with or without Motor. 20-50 HP (14.9 kW- 37.2 kW) Motor Sizes
RB4000: Standard Model with or without Motor. 40-75 HP (29.8 kW- 56.0 kW) Motor Sizes
RB4002: Standard Model with or without Motor. 40-75 HP (29.8 kW- 56.0 kW) Motor Sizes
Republic Blowers have a nameplate containing the serial and model number located on the blower head near the exhaust port.
The motor manufacturer’s nameplate is located on the motor. When placing a service call, please provide the Republic serial
number. Call us at [phone] or e-mail [e-mail].
 Models come with 2.5 inch (63.5 mm) or 4 inch (101.60 mm) vacuum ports, 3 inch (76.200 mm), 4 inch (101.60 mm), or 6 inch
(152.4 mm) exhaust ports, and can accommodate 3 inch (76.200 mm), 4 inch (101.60 mm), or 6 inch (152.44 mm) ID hose
connections.
All models come with mounting brackets and rubber vibration isolators.
All models have blower housings that can be rotated to almost any position with ease.
All models are capable of converting over to water-cooled systems (with optional purchased parts).
1. Notify all affected employees that a lockout or tagout is about to occur on a specific piece of equipment or machinery. The
authorized employee to use the lockout/tagout system shall know the type and magnitude of energy that the machine or
equipment utilizes and the hazards that exist with the energy source before preparing to shutdown.
2. If the machine or equipment is operating, please use normal stopping or rundown procedures for that machine.
3. Operate the switch, valve, or other energy isolating devices so that the equipment is isolated from its energy source. This
may include hydraulic pressure, residual mechanical energy, charged chemical lines, chemical drain lines, compressed gas lines,
electricity, and pressurized steam. Isolating the equipment from its energy source may involve turning off such items as the
operating control, a line valve, or an electrical circuit breaker.
4. Apply the lockout/tagout isolating device with assigned individual locks or tags.
5. Release any potentially-hazardous stored or residual energy. In order to do so, this may mean to return springs to a normal
position, bleeding down, or blocking hydraulic systems. Since the machine must be in a zero energy state, if there is any chance
the stored energy may reaccumulate, verification of isolation must be continued until the servicing or maintenance is complete.
6. The machine or equipment is now locked out or tagged out.
Lockout/Tagout Procedures
Moving parts can crush and
cut.
Do not operate with guard
removed.
Lock-out/tagout before
servicing.
WARNING

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Equipment Arrival and Inspection
Inspect the blower system at time of receipt to ensure that all components and accessories, as noted on the packing slip, were
received and in good condition. Verify that the serial number on the packing slip matches the serial number shown on the blower
head nameplate. Inspect the blower and motor assembly to ensure that the motor horsepower and voltage are correct.
Storage Conditions
1. Must store blower in a clean, dry place
2. The temperature during storage must be between -20 C (-4 F) and 40 C (104 F).
3. Rotate the bearing housing assembly at least 45 every three weeks during storage to prevent the bearings from seating in
the outer race.
Long Term Storage
Bearing housing assembly storage should not exceed twelve (12) months. The shaft of the bearing assembly must be in the
horizontal position during this period. If the unit is stored over twelve (12) months, please contact Republic Manufacturing at
[phone].
Suitability & Environmental Conditions
The units are suitable for the use in the industrial field.
Amounts of water vapor may be handled. Water, other liquids, aggressive or inflammable gases and vapors may not be
handled. Handling of inflammable or aggressive gases and vapors is only possible with special versions.
The ambient and suction temperatures must be between 5 F (15 C) and 104 F (40 C). For units utilizing a water-cooled
bearing housing assembly, the maximum inlet temperature is 350 F (176 C). For temperatures outside this range please contact
your supplier.
In all applications where an unplanned shut down of the blower could possibly cause harm to persons or installations, a
corresponding safety backup system must be installed.
If any equipment was damaged in transit, you will need to make a claim against the freight carrier immediately.
If you have any shortages, discrepancies, or damage, please call your Republic Manufacturing Distributor or Republic
Manufacturing at [phone]. No training required.
Space Required for Installation
1. Allow at least 8 inches (203 mm) to 10 inches (254 mm) of clearance for removal and venting at the belt guard.
2. Allow at least 2 inches (50 mm) to 3 inches (76 mm) of clearance around the rest of the blower for cooling.
3. Please refer to the blower dimensional drawings to determine the appropriate machine footprint.

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Installation
Lift the blower system by the lifting eye mounted on the top of the motor or by picking the blower up from underneath
the motor. Do not lift the blower by the belt guard. Vibration isolators are included with every blower. Bolt your Republic
Blower in place by the mounting brackets supplied with the blower. Use a minimum of four (4) mounting bolts. See the
Specications Section of the manual for equipment weights. No training required.
1. Have a qualied electrician congure the motor to your incoming voltage as noted in the Motor Wiring Section of the
manual. Refer to the nameplate on the motor for the correct power supply requirements.
2. The blower should be located in a place where the drive belt and intake air lter can be easily serviced and maintained.
3. Avoid any type of liquid over-spray or continuous washdown of the blower. Shield the blower if needed. Flooding the
blower can cause damage to the system.
4. Double check the pulley alignment and install the belt as shown in the Motor Pulley and Installation Belt diagrams. Be
sure to re-fasten the belt guard.
5. Install the inlet air lter – improper ltration will void warranty. Install system piping and check motor amperage draw.
High amperage draw may indicate too much ow. Contact Republic Manufacturing or the local distributor with any
questions.
6. Ensure unit has unobstructive surrounding space of 3 feet (0.91 m) with 10 inches (254 mm) space in front of belt guard.
Frequency of Inspection
Filter Weekly
Belt Monthly
Grease motor (if applicable) Quarterly
Keep blower free from contaminants Monthly

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RB500 Dimensions
HP Unit A B C D E F G H I J K L M N O P Q
3
(182T)
inch 17 1/16 8 1/8 4 1/2 20 1/8 7 1/2 11 1/4 5/8 7 1/2 10 3/8 7 1/8 3 2 1/2 9 1/2 4 1/2 2 8 3/4
mm 433 206 114 511 190 286 16 190 264 181 76 64 229 13 114 51 222
5
(184T)
inch 17 1/16 8 1/8 5 1/2 20 1/8 7 1/2 11 1/4 5/8 7 1/2 10 3/8 7 1/8 3 2 1/2 9 1/2 4 1/2 2 8 3/4
mm 433 206 140 511 190 286 16 190 264 181 76 64 229 13 114 51 222
7 1/2
(213T)
inch 20 9 5 1/2 20 7/8 8 1/2 12 7/8 1/8 8 1/4 10 3/8 7 1/8 3 2 1/2 9 1/2 4 1/2 2 8 3/4
mm 508 229 140 530 216 316 3 210 264 181 76 64 229 13 114 51 222
Retro Kit Est. WGT. (lbs) 50
Retro Kit Est. WGT. (kg) 22.6
HP Est. WGT. (lbs) Est. WGT. (kg)
3 (182T) 120 lbs 54 kg
5 (184T) 131 lbs 59 kg
7 1/2 (213T) 180 lbs 81 kg Noise Control With Enclosure No Enclosure
With Silencer 69 dB 76 dB
No Silencer 75 dB 82 dB
Specications and Dimensional Data

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HP Unit A B C D E F G H I J K L M N O P Q
3
(182T)
inch 17 1/16 8 1/8 4 1/2 23 1/8 7 1/2 11 7/8 1 1/4 7 1/2 12 1/8 8 1/8 3.96 3 5/8 10 1/4 4 1/2 6 1/2 3 10
mm 433 206 114 587 190 302 32 190 308 206 101 92 260 114 165 76 254
5
(184T)
inch 17 1/16 8 1/8 5 1/2 23 1/8 7 1/2 11 7/8 1 1/4 7 1/2 12 1/8 8 1/8 3.96 3 5/8 10 1/4 4 1/2 6 1/2 3 10
mm 433 206 140 587 190 302 32 190 308 206 101 92 260 114 165 76 254
7 1/2
(213T)
inch 20 9 5 1/2 23 7/8 8 1/2 13 1/16 3/4 8 1/4 12 1/8 8 1/8 3.96 3 5/8 10 1/4 4 1/2 6 1/2 3 10
mm 508 229 140 587 216 331 19 210 308 206 101 92 260 114 165 76 254
10
(215T)
inch 20 3/8 9 7 23 7/8 8 1/2 13 1/16 3/4 8 1/4 12 1/8 8 1/8 3.96 3 5/8 10 1/4 4 1/2 6 1/2 3 10
mm 517 229 178 587 216 332 19 210 308 206 101 92 260 114 165 76 254
Retro Kit Est. WGT. (lbs) 68
Retro Kit Est. WGT. (kg) 30.8
HP Est. WGT. (lbs) Est. WGT. (kg)
3 (182T) 138 lbs 62 kg
5 (184T) 149 lbs 67 kg
7 1/2 (213T) 198 lbs 89 kg
10 (215T) 226 lbs 102 kg
Noise Control With Enclosure No Enclosure
With Silencer 74-78 dB 88-90 dB
No Silencer 80-82 dB 92-96 dB
RB800 Dimensions