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Steel Grease Fan

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Installation, Operation and Maintenance Manual

Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, 
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure 
to comply with these instructions will result in voiding of the product warranty and may result in personal injury 
and/or property damage.

Document 470311 

Model XRUBS

Steel Grease Fan

Steel Grease Fan

These belt drive upblast centrifugal exhaust fans are specifically 
designed for high grease applications. 

The maximum continuous operating temperature is 400°F 

(204.4°C)

Fan is available in nine sizes, 140-200 HP with nominal wheel diameter 
ranging from 14 to 20 inches 

(356 to 508 mm)

. Each fan shall bear 

a permanently affixed manufacturer’s embossed metal nameplate 
containing the model number and individual serial number.

Only qualified personnel should install this fan. 
Personnel should have a clear understanding of these 
instructions and should be aware of general safety 
precautions. Improper installation can result in electric 
shock, possible injury due to coming in contact with 
moving parts, as well as other potential hazards. Other 
considerations may be required if high winds or seismic 
activity is present. If more information is needed, 
contact a licensed professional engineer before moving 
forward.

1.  Follow all local electrical and safety codes, as well as 

the National Electrical Code (NEC) and the National 
Fire Protection Agency (NFPA), where applicable. 
Follow the Canadian Electric Code (CEC) in Canada.

2.  The rotation of the wheel is critical. It must be free 

to rotate without striking or rubbing any stationary 
objects.

3.  Motor must be securely and adequately grounded.

4.  Do not spin fan wheel faster than max cataloged fan 

RPM. Adjustments to fan speed significantly affects 
motor load. If the fan RPM is changed, the motor 
current should be checked to make sure it is not 
exceeding the motor nameplate amps.

5.  Do not allow the power cable to kink or come in 

contact with oil, grease, hot surfaces or chemicals. 
Replace cord immediately if damaged.

6.  Verify that the power source is compatible with the 

equipment.

7.  Never open access doors to a duct while the fan is 

running.

DANGER

Always disconnect, lock and tag power source before 
installing or servicing. Failure to disconnect power 
source can result in fire, shock or serious injury.

CAUTION

When servicing the fan, motor may be hot enough 
to cause pain or injury. Allow motor to cool before 
servicing.

CAUTION

Precaution should be taken in explosive atmospheres.

DANGER

Pour écarter les risques d’incendie, de choc électrique 
ou de blessure grave, veiller à toujours débrancher, 
verrouiller et étiqueter la source de courant avant 
l’installation ou l’entretien.

ATTENTION

Lors de toute intervention sur la soufflante, le moteur 
peut être suffisamment chaud pour provoquer une 
douleur voire une blessure. Laisser le moteur refroidir 
avant toute maintenance.

ATTENTION

Faire preuve de précaution dans les atmosphères 
explosives.

General Safety Information

Summary of Contents for XRUBS-140

Page 1: ...des as well as the National Electrical Code NEC and the National Fire Protection Agency NFPA where applicable Follow the Canadian Electric Code CEC in Canada 2 The rotation of the wheel is critical It must be free to rotate without striking or rubbing any stationary objects 3 Motor must be securely and adequately grounded 4 Do not spin fan wheel faster than max cataloged fan RPM Adjustments to fan...

Page 2: ...ocal code authorities for specific requirements Storage Fans are protected against damage during shipment If the unit cannot be installed and operated immediately precautions need to be taken to prevent deterioration of the unit during storage The user assumes responsibility of the fan and accessories while in storage The manufacturer will not be responsible for damage during storage These suggesti...

Page 3: ...heel by hand ten to fifteen revolutions to distribute lubricant in motor If paint deterioration begins consideration should be given to touch up or repainting Fans with special coatings may require special techniques for touch up or repair Machined parts coated with rust preventive should be restored to good condition promptly if signs of rust occur Immediately remove the original rust preventive c...

Page 4: ...motor compartment through the breather tube For other non flammable applications the electrical supply should also be routed through the breather tube 7 Connect power supply wiring to the motor as indicated on the motor nameplate or terminal box cover Check the power source for compatibility with the requirements of your equipment 8 Check fan wheel for free rotation recenter if necessary Check set ...

Page 5: ...iances label Grease Trap Installation The polypropylene grease trap is designed to collect grease residue and avoid drainage onto roof surface Follow all local codes as well as the National Fire Protection Agency NFPA where applicable NFPA 96 Upblast fans shall have a drain directed to a readily accessible and visible grease receptacle not to exceed 1 gal 3 8L Refer to Document 476370 Grease Trap ...

Page 6: ... arms and drive frame angles in the same manner Four 4 fasteners in total Identical fasteners on opposing side must also be loosened 9 If adjustments are made it is very important to check the pulleys for proper alignment Misaligned pulleys lead to excessive belt wear vibration noise and power loss See Figure 11 CORRECT WRONG WRONG WRONG Figure 11 Figure 12 11 Belt tension should be adjusted to al...

Page 7: ...nt See Figure 9 on page 6 4 When the fan is started observe the operation and check for any unusual noises 5 With the system in full operation and all ductwork attached measure current input to the motor and compare with the nameplate rating to determine if the motor is operating under safe load conditions 6 Keep inlets and approaches to fan clean and free from obstruction Inspection Inspection of...

Page 8: ...enance are to be performed only by qualified personnel who are familiar with local codes and regulations and who are experienced with this type of equipment Motor maintenance is generally limited to cleaning and lubrication where applicable Cleaning should be limited to exterior surfaces only Removing dust buildup on motor housing ensures proper motor cooling Greasing of motors is only intended whe...

Page 9: ...requent lubrication is required A good quality lithium base grease conforming to NLGI Grade 2 consistency such as those listed in Table 3 may be used Dampers must open fully Use motorized dampers in low airflow applications to reduce losses Avoid sharp turns or entrance conditions which cause uneven flow Use turning vanes in elbows to reduce adverse effects Provide uniform airflow at fan inlet to ...

Page 10: ...tage Drive Check for broken belts Tighten loose pulley or belts Motor Ensure motor is correct horsepower and not tripping overload protector Motor overloads or overheats Lubrication Check for excessive or insufficient grease in the bearing Mechanical Replace damaged bearing Relieve excessive belt tension Align bearings Check for bent shaft Belt slippage Adjust tension or replace bad belts see page ...

Page 11: ...meplate with model number and serial number embossed This information will assist the local representative and the factory in providing service and replacement parts Before taking any corrective action make certain unit is not capable of operation during repairs NOTE For replacement the windband vertical supports drain trough and curb cap with mounting holes comes as one complete assembly Vertical...

Page 12: ...eserves the right to change specifications without notice Product warranties can be found online at accurex com either on the specific product page or in the Warranty section of the website at Accurex com Resources Warranty Our Commitment P O Box 410 Schofield WI 54476 Phone 800 333 1400 Fax 715 241 6191 Parts 800 355 5354 accurex com ...

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