Republic Manufacturing RB800 Istruzioni per l’uso

CENTRIFUGAL BLOWER MAINTENANCE SCHEDULE

RB800, RB1200HC, RB2400

MANUFACTURING

EPUBLIC

RB800

RB1200HC

RB2400

COMBINED FLUID PRODUCTS COMPANY

www.cfpco.com ●[email protected] ●+1 (847) 540-0054

REPUBLIC NOTES

Service procedures should only be performed by trained service personnel.

CONTENTS

Read the following safety instructions carefully. Disconnect blower from electrical source before

attempting service.

WARNING

IMPORTANT

COMBINED FLUID PRODUCTS COMPANY

www.cfpco.com ●[email protected] ●+1 (847) 540-0054

REPUBLIC NOTES CONTENTS

Filter Maintenance...............................................15

Bearing Maintenance...........................................16

Tension Pulley Maintenance................................17

Motor Pulley and Bushing Maintenance.............18

Bore Part Number............................................... 19

Replacement Parts..........................................20-22

Trouble Shooting Guidelines..........................23-24

Warranty Terms and Conditions.........................25

Warning and Important Note................................2

Safety Instructions.................................................4

Drive Belt Information..........................................5

Belt Sizing Information.........................................5

Belt Removal and Installation............................6-8

Spring Replacement Installation...........................9

RB2400 Replacement Parts Reference.................10

Belt Maintenance..................................................11

Motor Pulley Information...................................12

Motor Pulley Installation.....................................13

Blower Pulley Removal........................................14

COMBINED FLUID PRODUCTS COMPANY

www.cfpco.com ●[email protected] ●+1 (847) 540-0054

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 Lock Out/Tag Out 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. Make sure to install the inlet air lter

or piping to blower inlet, before starting the blower/motor.

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 nal 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. Use only genuine Republic Manufacturing brand replacement parts.

REPUBLIC CENTRIFUGAL BLOWER MAINTENANCE SCHEDULE

RB800, RB1200HC, RB2400

COMBINED FLUID PRODUCTS COMPANY

www.cfpco.com ●[email protected] ●+1 (847) 540-0054

DRIVE BELT INFORMATION

Republic utilizes a 16-groove belt on all its centrifugal blowers and has the part number stamped on the at

side of the belt. Republic recommends that you keep spare belts in stock. It is also recommended that replace-

ment belts be purchased from a Republic distributor, to ensure that belt quality and blower performance are maintained.

Belts do vary from manufacturer to manufacturer, and all Republic belts are inspected for belt thickness and

imperfections prior to shipment.

BELT SIZING INFORMATION

Please nd the part number stamped on the face of the small stainless steel blower pulley, and then refer to the

following chart for the correct belt size.

RB800/ RB1200HC REPLACEMENT PARTS REFERENCE

Blower Pulley Part No. Belt Part No. Tension Pulley Part No.

RB800 RB1200HC RB800 RB800-STB RB1200HC RB800 RB1200HC

230-0145 N/A 230-3800K 230-5925 N/A 200-0214 N/A

230-0155 231-0155 230-3800K 230-5925 230-4600K 200-0214 200-0206

230-0165 231-0165 230-3800K 230-5925 230-4600K 200-0214 200-0206

230-0175 231-0175 230-3800K 230-5925 230-4700K 200-0214 200-0206

230-0185 231-0185 230-3800K 230-5925 230-4700K 200-0214 200-0206

230-0195 231-0195 230-3800K 230-5925 230-4700K 200-0214 200-0206

230-0205 231-0205 230-3800K 230-5925 230-4700K 200-0214 200-0206

230-0215 231-0215 230-3900K 230-5925 230-4700K 200-0214 200-0206

230-0225 231-0225 230-3900K 230-5925 230-4700K 200-0214 200-0206

230-0235 231-0235 230-3900K N/A 230-4700K 200-0214 200-0206

230-0245 231-0245 230-3900K N/A 230-4700K 200-0214 200-0206

230-0255 231-0255 230-3900K N/A 230-4800K 200-0214 200-0206

230-0265 231-0265 230-3900K N/A 230-4800K 200-0214 200-0206

230-0275 231-0275 230-3950K N/A 230-4800K 200-0214 200-0206

230-0285 231-0285 230-3950K N/A 230-4900K 200-0214 200-0206

230-0295 231-0295 230-3950K N/A 230-4900K 200-0214 200-0206

Important: Replace spring with every belt replacement to ensure proper tension on your new belt. e follow-

ing pages should show the proper procedures for belt installation and removal and for spring replacement.

REPUBLIC CENTRIFUGAL BLOWER MAINTENANCE SCHEDULE

RB800, RB1200HC, RB2400

COMBINED FLUID PRODUCTS COMPANY

www.cfpco.com ●[email protected] ●+1 (847) 540-0054

BELT REMOVAL AND INSTALLATION

FIGURE 1

e same belt removal and installation procedure ap-

plies for the RB2400 model with one exception– there

are two (2) belts.

NOTE:

Tension Block rotated

counterclockwise (CCW)

(Tension Pulley removed

for clarity)

In order to remove or replace the Belt, the Tension

Block Assembly must be rotated out of the way to

allow for the Tension Arm to swing (CW). Loosen

the 5/16-18 SHCS as shown in Figure 1, the screw is

located on the backside of the Mounting Plate. Use a

1/4” allen wrench (not shown) on the 5/16-18 SHCS.

FIGURE 2

Once the 5/16-18 SHCS is removed, rotate the Tension

Block (CCW) to allow for the Tension Arm to swing

(CW) as shown in Detail B.

Tension Arm

DETAIL B

REPUBLIC CENTRIFUGAL BLOWER MAINTENANCE SCHEDULE

RB800, RB1200HC, RB2400

COMBINED FLUID PRODUCTS COMPANY

www.cfpco.com ●[email protected] ●+1 (847) 540-0054

DETAIL B

Using a 1” open-end wrench, as shown in Figures 3 and 4, rotate the Tension Arm Assembly clockwise (CW)

and remove the Belt. You may release the pressure on the wrench and allow the Tension Arm to swing back

into position once the Belt has been removed.

BELT REMOVAL AND INSTALLATION

1” Open End

Wrench

Tension Block

rotated away

Tension Pulley rotated

away from belt

Set Screws

Tension Pulley

Belt

FIGURE 3 FIGURE 4

Blower Pulley

Motor Pulley

FIGURE 5 FIGURE 6

Using a 1” open-end wrench, rotate the Tension Arm Assembly clockwise (CW). Wrap the new or replacement

Belt around the Blower Pulley and then onto the Motor Pulley as shown in Figures 5 and 6. Once the Belt is in

place and the wrench is removed, verify that the Belt is seated into all the grooves on both pulleys by manually

rotating the Motor Pulley (large pulley), and checking the alignment of the Belt on the groves.

e same belt removal and installation procedure applies for the

RB2400 Model with one exception– there are two (2) belts.

NOTE:

REPUBLIC CENTRIFUGAL BLOWER MAINTENANCE SCHEDULE

RB800, RB1200HC, RB2400

COMBINED FLUID PRODUCTS COMPANY

www.cfpco.com ●[email protected] ●+1 (847) 540-0054

BELT REMOVAL AND INSTALLATION

FIGURE 7

FIGURE 8

Serial No. Location

Tension Arm

5/16-18 SHCS for

Tension Block

DETAIL B

Rubber Block

5/16-18 Hex Nut

5/16-18 SS Hex

HD Screw

Tension Block

(Tension Pulley removed for clarity)

Rotate the Tension Block (CW) back into position

and reinstall 5/16-18 SHCS through the back side of

the Mounting Plate using a 1/4” allen wrench.

e Tension Block is not to be used for tensioning the belt. e purpose of the Tension

Block is to help control the Tension Arm “backlash” on motors with high starting torque.

NOTE:

Using a at blade screwdriver, adjust the

slotted 5/16-18 SS Hex Head screw on

the Tension Block until the Hex Head

just touches the Rubber Block on the

Tension Arm assembly. Tighten jam nut

with a 1/4” wrench and reinstall the belt

guard cover.

e hex head screw is not designed to put additional pressure on the Tension Arm or Belt, it is intended to pre-

vent the backward movement of high torque motors.

NOTES:

e same belt removal and installation procedure applies for the RB2400 Model with one exception– there are

two (2) belts.

REPUBLIC CENTRIFUGAL BLOWER MAINTENANCE SCHEDULE

RB800, RB1200HC, RB2400

COMBINED FLUID PRODUCTS COMPANY

www.cfpco.com ●[email protected] ●+1 (847) 540-0054

SPRING REPLACEMENT INSTALLATION

Important–Replace spring when replacing belt to insure proper tension on you new belt.

1. Remove spring from 1/4 shoulder bolt on blower mounting plate.

2. Remove the tension pulley assemply from mounting plate by removing pivot pin (Item 11).

3. Remove the tension pulley sha (Item 3). THis sha has le-handed threads, so you will need to turn

clockwise to loosen. Items 4, 5, 6, 13, and 14 will remain attached to Item 3.

4. Remove shoulder bolt (Item 12).

5. Replace spring and reinstall shoulder bolt (Item 12).

6. Reinstall tension pulley assembly to mounting plate by tightening pivot pin (Item 11). Use Loctite 242

(removable strength) and torque to 25 /lbs.

7. Apply Loctite 242 (removable strength) to tension pulley sha threads (Item 3) and install to tension arm

(Item 2). Twist tension pulley sha counterclockwise to tighten.

8. Reinstall spring to 1/4 shoulder bolt on blower back plate.

Mounting Plate

1/4 Shoulder Bolt

Item No. Part No. Qty. Description

1 210-0701 1 Spring Ext. .080 Tension Pulley

2 290-0107 1 Tension Arm

3 250-0406 1 Bearing 6301-2RS

4 250-0701 2 Shaft TP Double Brg.

5 230-0707 1 5” Double Bearing Tension Pulley

6 210-0502 1 Retaining Ring N5000-145

7 290-0201 1 Rubber Block

8 210-1504 2 Screw, SS 1/4-20 x 5/8 Button Soc. Hd.

9 250-0703 2 Flanged Nylon Bearing 10L7-F

10 210-0310 1 Washer, SS 1-3/16 x 5/16 x .058

11 250-0402 1 Pivot Pin Tension Pulley

12 210-0603 1 Shoulder Bolt, SS 3/16 x 5/16

13 250-1007 1 Seal TP CR6767

14 250-1008 1 Seal CR13514

Spring replacement procedure is the

same for both the 4” and 5” Tension

Pulley Assemblies.

NOTES:

REPUBLIC CENTRIFUGAL BLOWER MAINTENANCE SCHEDULE

RB800, RB1200HC, RB2400

COMBINED FLUID PRODUCTS COMPANY

www.cfpco.com ●[email protected] ●+1 (847) 540-0054

e RB2400 model comes equipped with two (2) blower heads and may require a combination of Tension

Pulley Assemblies. When looking at the belt side or the belt guard side of this blower, the le side head is

called and engraved with the letters “H1” and the right side head is called and engraved with the letters “H2”.

e center distance of the motor pulley and blower pulley sha on the “H1” side is slightly shorter than the

“H2” side.

In order for the proper belt sizes to function on this blower, the combination of 4” and 5” Tension Pulley

assemblies were incorporated. Use the chart below to nd which Tension Pulley is required on either the

“H1” side or “H2” side of the blower.

RB2400 REPLACEMENT PARTS REFERENCE

REPUBLIC CENTRIFUGAL BLOWER MAINTENANCE SCHEDULE

RB800, RB1200HC, RB2400

RB2400 REPLACEMENT PARTS REFERENCE

Blower Pulley Part No. Belt Part No. Tension Pulley Part No.

RB2400 H1 Side RB2400 H2 Side RB2400 H1 Side RB2400 H2 Side

231-0175 230-5200K 230-5500K 200-0206 200-0214

231-0185 230-5200K 230-5500K 200-0206 200-0214

231-0195 230-5200K 230-5600K 200-0206 200-0206

231-0205 230-5200K 230-5600K 200-0206 200-0206

231-0215 230-5200K 230-5600K 200-0214 200-0206

231-0225 230-5200K 230-5600K 200-0214 200-0214

231-0235 230-5200K 230-5600K 200-0214 200-0214

231-0245 230-5300K 230-5600K 200-0206 200-0214

231-0255 230-5300K 230-5600K 200-0206 200-0214

231-0265 230-5300K 230-5600K 200-0206 200-0214

231-0275 230-5300K 230-5600K 200-0206 200-0214

231-0285 230-5300K 230-5800K 200-0206 200-0206

231-0295 230-5300K 230-5800K 200-0206 200-0206

200-0206 = 5”Tension Pulley Assembly

200-0214 = 4”Tension Pulley Assembly

COMBINED FLUID PRODUCTS COMPANY

www.cfpco.com ●[email protected] ●+1 (847) 540-0054

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