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FSSA-1252-0601.pmd
Page 1
Blower
Service & Operation Manual
To be filled in by Maintenance Personnel:
Blower Serial Number(s): _______________
IMPORTANT:
Operating and Maintenance personnel must be thoroughly familiar with the contents
of this manual prior to operating or servicing this piece of equipment. Injury to per-
sonnel or damage to equipment could occur from improper operation.
135 Vista Centre Dr • Forest, VA 24551 • (434) 316-5310 • (434) 316-5910 Fax
http://www.sterlingblower.com • sterling@sterlingblower.com
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Table of Contents
Summary of Contents for Sterling Systems Blower
- Page 1 Blower Service & Operation Manual To be filled in by Maintenance Personnel: Blower Serial Number(s): _______________ IMPORTANT: Operating and Maintenance personnel must be thoroughly familiar with the contents of this manual prior to operating or servicing this piece of equipment. Injury to per- sonnel or damage to equipment could occur from improper operation.
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Page 2: Table Of Contents
FSSA-1252-0601.pmd Page 2 Contents General Safety Rules Installation 2.0 ..Introduction 2.1 ..Description 2.2 ..Handling and Storage 2.3 ..Equipment Specifications A..Floor Space Requirements B..Lagging Requirements 2.4 ..Wiring Instructions 2.5 ..Electrical Interlock Interface (for EZ-AC models only) III. - Page 3 FSSA-1252-0601.pmd Page 3 4.3 ..Troubleshooting A..Introduction B..Safety C..Troubleshooting Table Spare Parts 5.1 ..Itemized Drawing w/recommended Spare Parts Dimensions...
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Page 4: General Safety Rules
For all repairs, replacements, or servicing, turn off power at all sources of electrical and pneu- matic supply before servicing unit. Special caution must be observed around blower inlets as the suction can pull items such as clothing, jewelry, and tools into the blower. Inlets and outlets that are not physically connected to pipe or tubing should be covered with a screen to prevent any foreign objects from entering the airstream. -
Page 5: Installation
Installation Introduction This section provides the instructions for the installation and setup of the equipment you have purchased from Sterling Blower Co. It does not include any provisions for any special accesso- ries or optional equipment. Description The equipment supplied by Sterling Blower Co. is a result of the customized engineering, manu- facturing know-how, and quality craftsmanship that have made Sterling the highly efficient, cost-effective solution to your material handling needs. -
Page 6: Wiring Instructions
Grounding and fusing should be done in accordance with the National Electrical Code. Jog the motor by turning the power to the blower ON and then immediately turning it OFF. This will start the motor for a few seconds. While the motor is still turning, look into the rear of the motor and verify that it is turning in the desired direction. -
Page 7: Electrical Interlock Interface (For Ez-Ac Models Only)
FSSA-1252-0601.pmd Page 7 Electrical Interlock Interface (for EZ-AC models only) IMPORTANT: This equipment contains electrical interlocks!! For your safety and the safety of those that will be operating the machinery which contains the interlocks, the following guide- lines must be adhered to: •... - Page 8 FSSA-1252-0601.pmd Page 8 INSTALLATION — MAINTENANCE INSTRUCTIONS AC INDUCTION MOTORS INSTALLATION After unpacking, check for damage. Be sure that the shaft rotates freely. MOUNTING Mount motors securely on a firm foundation. Ball bearing motors can be mounted in any position. CONNECTIONS Check line voltage frequency and phase, being sure that it agrees with the nameplate.
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Page 9: Operation
Section 4.3, Trouble-Shooting. Note: Shut the blower down immediately if any sudden increase in vibra- tion occurs. Allow the blower to run up to speed for at least 30 seconds on start-up prior to feeding material through the blower (if applicable). Operation Do not operate equipment at speeds higher than that for which the equipment is rated. -
Page 10: Shut-Down
FSSA-1252-0601.pmd Page 10 If material is being conveyed by the blower, caution must be used to insure that the blower is not conveying more throughput (lbs/hr) than that for which it has been sized. No inlet or outlet tubing should be removed while the blower is in operation as serious injury... -
Page 11: Maintenance
Maintenance Introduction A good maintenance program should consist of a systematic check of all blower parts on a regular basis. Maintenance intervals should be determined by the severity of the application and local conditions. Do not attempt any maintenance or servicing of equipment until electrical power supply has been disconnected and locked out. -
Page 12: Installing / Tensioning V-Drives
FSSA-1252-0601.pmd Page 12 belt, rendering it useless. Dirty or rusty sheaves impair the drive’s efficiency and cause excessive wear to the belts, which can result in premature failure. Worn sheaves shorten belt life by as much as 50%. If the grooves are worn to the point that the belt bottoms out, slippage may occur and burn the belts. -
Page 13: Tensioning A Drive
FSSA-1252-0601.pmd Page 13 Fig. 2 complete new matched set of belts. Never employ a used belt as a replacement for a unit of a set. Used belts, normally, are worn in cross-section and stretched. A new belt so applied will ride higher in the sheave, travel faster and operate at a much higher tension than the used belts. - Page 14 FSSA-1252-0601.pmd Page 14 large enough to delfect the belt ” for every inch of span length. For example, the deflection of a 100-inch span would be 100/64 or 1 inches. Compare the force you have applied with the valves given in Table 1. If the force is between the values for normal tension, and 1½...
- Page 15 FSSA-1252-0601.pmd Page 15 MORE POWER AND LIFE FROM V-BELTS Trouble Area and Observation Cause Remedy Belts stretch unequally. Mis-aligned drive, unequal work done by Realign and re-tension drive. belts. All belts stretch about equally. Belt tensile member broken from improper Replace all belts with new matched set, installation.
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Page 16: Bearings
Failure to observe these precautions could re- sult in bodily injury. Sterling uses Dodge® SC or SCM Bearings in its blowers. If the blower is to be exposed to wet or dusty conditions or to corrosive vapors, extra protection is necessary: Add grease until it shows at the seals;... -
Page 17: Wheel
Remove the inlet plate from the blower by removing the hardware from the studs that are welded to the housing. If you have a V-Belt drive blower, you must also remove the hardware that attaches the foot of the inlet plate to the base plate. The inlet plate may have to be gently pried loose because of the silicone sealant between plates. -
Page 18: Drive Belt Replacement
Excess tension shortens bearing life while insufficient tension shortens belt life and can reduce blower perfor- mance and efficiency. After proper tension is acquired, retighten the four bolts on the motor base, as some stretching may occur in the belts after installation. - Page 19 FSSA-1252-0601.pmd Page 19 ing to remove or replace bearings. Clean shaft and bearing bore thoroughly. File flats on shaft at setscrew locations to permit easy removal of bearing. Slip bearing into position. Be sure that bearing is not on a worn section of the shaft. For tighter fits tap inner ring face only with soft driver.
- Page 20 2. Loose components or guards on equipment Excessive Noise 3. Worn bearings 4. System resonance or pulsation 5. Blower operating near “stall” due to incorrect system design 6. Type of material being conveyed 1. Buildup of material on blower wheel 2.
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