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DB IO&M

B51131-002

Limited Warranty

Loren Cook Company warrants that your Loren Cook fan was manufactured free of defects in materials and workmanship, to the extent stated herein. 

For a period of one (1) year after date of shipment, we will replace any parts found to be defective without charge, except for shipping costs which will be 

paid by you. This warranty is granted only to the original purchaser placing the fan in service. This warranty is void if the fan or any part thereof has been 

altered or modified from its original design or has been abused, misused, damaged or is in worn condition or if the fan has been used other than for the 

uses described in the company manual. This warranty does not cover defects resulting from normal wear and tear. To make a warranty claim, notify Loren 

Cook Company, General Offices, 2015 East Dale Street, Springfield, Missouri 65803-4637, explaining in writing, in detail, your complaint and referring to 

the specific model and serial numbers of your fan. Upon receipt by Loren Cook Company of your written complaint, you will be notified, within thirty (30) 

days of our receipt of your complaint, in writing, as to the manner in which your claim will be handled. If you are entitled to warranty relief, a warranty ad-

justment will be completed within sixty (60) business days of the receipt of your written complaint by Loren Cook Company. This warranty gives only the 

original purchaser placing the fan in service specifically the right. You may have other legal rights which vary from state to state. For fans provided with 

motors, the motor manufacturer warrants motors for a designated period stated in the manufacturer’s warranty. Warranty periods vary from manufacturer 

to manufacturer. Should motors furnished by Loren Cook Company prove defective during the designated period, they should be returned to the nearest 

authorized motor service station. Loren Cook Company will not be responsible for any removal or installation costs.

Corporate Offices:   2015 E. Dale St. Springfield, MO 65803

Phone 417-869-6474  |  Fax 417-862-3820  |  lorencook.com

July 2017

SDB and DBX

2

1

3

4

5

8

9

10

AIRFLOW

11

12

13

7

6

Part No.

Description

SDB (Sizes 100–180)

SDB (Sizes 210–245)

DBX (Sizes 10–18)

1

Rubber Isolators (4)

Rubber Isolators (4)

Rubber Isolators (4)

2

Hanger Channel (2)

Hanger Channel (2)

Hanger Channel (2)

3

Driver Sheave

Driver Sheave

Driver Sheave

4

Motor

Motor

Motor

5

Pivoting Motor Base (shown)

Pivoting Motor Base (not shown)

Pivoting Motor Base (shown)

6

Belt Set

Belt Set

Belt Set

7

Driven Sheave

Driven Sheave

Driven Sheave

8

Blower

Blower

Blower

9

Blower Brackets (2)

Blower Brackets (2)

Blower Brackets (2)

10

Outlet Flange

Outlet Flange

Outlet Flange

11

Wheel

Wheel

Wheel

12

Shaft

Shaft

Shaft

13

Bearings (3)

Bearings (3)

Bearings (3)

Содержание SDB

Страница 1: ...n the impeller can rotate which is referred to as windmill ing Windmilling will cause hazardous conditions due to unexpected rotation of components Impellers should be blocked in position or air passages blocked to prevent draft when working on fans Friction and power loss inside rotating components will cause them to be a potential burn hazard All components should be approached with caution and ...

Страница 2: ...stallation Motor Installation To prevent damage to the fan during shipping motors 5HP and larger and extremely heavy motors cast iron or severe duty are shipped loose and must be field mounted by bolting the motor on the motor mounting plate in the ex isting mounting slots Wiring Installation NOTICE Lock off all power sources before unit is wired to power source Leave enough slack in the wiring to...

Страница 3: ...hrough 48 1 8 Over 48 1 4 Pulley Alignment Pulley alignment is adjusted by loosening the motor pulley set screw and by moving the motor pulley on the motor shaft Figure 2 indicates where to mea sure the allowable gap for the drive alignment tolerance All contact points indicated by WXYZ are to have a gap less than the tolerance shown in the table When the pul leys are not the same width the al low...

Страница 4: ...rews for tightness Tighten as necessary Inspect belt wear and alignment Replace worn belts with new belts and adjust alignment as needed See Belt and Pulley Installation page 3 Bearings should be inspected as recommended in the Conditions Chart Inspect for cleanliness Clean exterior surfaces only Re moving dust and grease on motor housing assures prop er motor cooling Fan Bearings The fan bearings...

Страница 5: ...20 2486 135 2281 150 2088 180 1727 210 1399 245 1284 TDB Size Maximum RPM 9 1469 10 1382 13 1094 15 1030 18 907 DB DBX Size Maximum RPM 8 1494 9 1594 10 1382 13 1094 15 973 18 906 Pulley and Belt Replacement 1 Clean the motor and fan shafts 2 Loosen the motor plate mounting bolts to relieve the belt tension Remove the belt 3 Loosen the pulley setscrews and remove the pulleys from the shaft If exce...

Страница 6: ...ole Location Troubleshooting Problem and Potential Cause Low Capacity or Pressure Incorrect direction of rotation Make sure the fan rotates in same direction as the arrows on the motor or belt drive assembly Poor fan inlet conditions There should be a straight clear duct at the inlet Improper wheel alignment Excessive Vibration and Noise Damaged or unbalanced wheel Belts too loose worn or oily bel...

Страница 7: ...ber Isolators 4 Rubber Isolators 8 3 Pivoting Motor Base Pivoting Motor Base 4 Hanger Channel 2 Hanger Channel 2 5 Blower Bracket 2 Blower Bracket 3 6 Bearings 2 Bearings 4 7 Blower Blower 2 8 Driven Sheave Driven Sheave 9 Shaft Shaft 10 Belt Set Belt Set 11 Driver Sheave Driver Sheave 12 Outlet Flange Outlet Flange 2 13 Wheel Wheel 2 ...

Страница 8: ...pleted within sixty 60 business days of the receipt of your written complaint by Loren Cook Company This warranty gives only the original purchaser placing the fan in service specifically the right You may have other legal rights which vary from state to state For fans provided with motors the motor manufacturer warrants motors for a designated period stated in the manufacturer s warranty Warranty...

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