9
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
