User Manual

ManualsBrandsSpencer ManualsEquipment4BOB Multistage Centrifugal Blowers

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Summary of content (20 pages)

PAGE 1
Sp en c er ® SOH, 4B OH & 4B OB Mu l t i s t ag e Cen t r i f u g al B l o w er s Ser i al No : Mo d el No : Op er at i n g an d Mai n t en an c e Man u al 4BOB Four-Bearing Outboard SOH Standard Overhung 4BOH Four-Bearing Overhung Im p o r t an t Read an d b ec o m e f am i l i ar w i t h t h i s m an u al p r i o r t o i n s t al l i n g y o u r Sp en c er b l o w er.
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C o n t en t s I Page In t r o du c ti o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . .3 II L i m i t ed War r an t y . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 III Saf et y Pr ec au t i o n s & Op er at i n g Gu i d el i n es . . . . . . .3 IV Han d l i n g an d St or age . . . . . . . . . . . . . . . . . . . . . . . . .4 Lifting and Moving . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Il l . Saf et y Pr ec au t i o n s an d Op er at i n g Gu i d el i n es • Read and follow all instructions in this manual. If you have any questions, consult your Spencer Representative. • Use appropriately rated lifting equipment for installation, removal or disassembly of heavy components. Pr o d u c t Des c r i p t i o n Standard Overhung Design These Spencer blowers are multistage centrifugal units which handle air and other gases, working either as blowers or exhausters.
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IV. Han d l i n g an d St o r ag e Each Spencer blower is carefully balanced and tested at the factory. For optimum performance, it must be handled with care during unloading and installation. Check the shipment for damage upon arrival; file any claims with the shipper and notify Spencer. L i f t i n g an d Mo v i n g Moving of this equipment is the customerʼs responsibility and should be performed or directed by experienced riggers using accepted rigging practices and safety precautions.
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2. F l ex i b l e Co n n ec t o r s CA UTION: Co n n ec t ed p i p i n g m u s t n o t t o u c h t h e b l o w er. Use fl exi bl e co nn ect or s (exp ans io n j o in ts o r r ub b er sl eev es ) o n b o t h t h e in l et an d d i sc h ar g e t o cr eat e an i s ol at i n g g ap b et w een b l o w er an d p i p i n g . 3. B u t t er f l y Val v e To regulate (throttle) blower volume and/or pressure, a butterfly valve may be installed—preferably on the inlet.
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L as er A l i g n m en t Tec h n i q u e (Rec o m m en d ed ) Laser systems have significant advantages such as reduced maintenance costs and energy consumption; prolonged life for bearings, seals and couplings; decreased bearing temperatures and lower vibration levels. Many laser systems also identify and measure soft foot conditions. NOTE: Consult an alignment specialist if laser equipment is not available.
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8. Sh af t Seal s (4B OB B l o w er s & Gas B o o s t er s ) VI. Op er at i o n an d A d j u s t m en t s St ar t u p Pr ec au t i o n s Before operating a new blower for the first time, review its installation and setup to be sure that no steps have been overlooked. 1.
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Su r g e CA UTION: Do n o t o p er at e b l o w er i n s u r g e (u n s t ab l e l o w f l o w r a n g e) . Dam ag e t o b l o w er c au s e d b y o p er a t i n g i n s u r g e i s n o t c o v er ed b y Sp en c er w ar r an t y. A blower in surge produces a rush or pulsating rhythmic air sound caused when airflow into or out of the blower is restricted. In addition to its characteristic noise, surge may be detected by power or pressure fluctuations.
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L u b r i c at i o n Pr o c ed u r e CA UTION: K eep t h e g r eas e c l ean an d m ai n t ai n c l ean l i n es s t o av o i d b ear i n g c o n t am i n at i o n an d d am ag e. NOTE: More bearing failures are caused by overgreasing than lack of lubricant. Always add grease sparingly. CA UTION: Us e Chevr on SRI #2 g rease. In ter mi xin g in com pati bl e g r eas es or u s in g an y ot h er ty p e m ay r es ul t i n bear in g fail ure w hic h is no t c ov ered und er th e Spenc er warrant y.
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Ty p i c al Mu l t i s t ag e St an d ar d Ov er h u n g Ty p e (SOH) Di s c h ar g e I n t ak e No t es : 1. Although three impellers and two deflectors are shown in this typical drawing, the number in your machine may vary depending on its design criteria. 2. The impellers are equipped with tapered bushing hubs as illustrated or a split clamped hub. 3. When ordering replacement parts, refer to page 9.
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Di s as s em b l y an d Reas s em b l y In s t r u c t i o n s , SOH WA RNING: DISCONNECT A ND L OCK OUT EL ECTRICA L POWER B EFORE PERFORMING MA INTENA NCE. CA UTION: Par t s m u s t b e r eas s em b l ed i n ex ac t l y t h e s am e r el at i v e p o s i t i o n s . Th er ef o r e, i t Is r ec o m m en d ed t h at eac h p ar t b e m ar k ed as i t i s r em o v ed f r o m t h e m ac h i n e t o f ac i l i t at e l at er r eas s em b l y.
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Ty p i c al Fo u r -B ear i n g Ov er h u n g Ty p e (4B OH) Di s c h ar g e In t ak e No t es : 1. Although three impellers and two deflectors are shown in this typical drawing, the number in your machine may vary depending on its design criteria. 2. The impellers are equipped with a split clamped hub as illustrated, tapered bushing hubs or keyed hubs. 3. When ordering replacement parts, refer to page 9.
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Di s as s em b l y an d Reas s em b l y In s t r u c t i o n s , 4B OH WA RNING: DISCONNECT A ND L OCK OUT EL ECTRICA L POWER BEFORE PERFORMING MA INTENANCE. CAUTION: Par ts m u s t b e r eas s em b l ed i n ex act l y t h e sam e relativ e pos it ion . Th erefo re, i t i s recom mended that each part be tagged as i t is remov ed fr om t he mac hi ne to f ac ili tate l at er r eas s em b l y.
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Ty p i c al Fo u r -B ear i n g Ou t b o ar d Ty p e (4B OB ) I n t ak e Di s c h ar g e 1 2 3 4 6 7 8 8A 9 10 11 12 13 13A 14 15 16 No t es : 1. Although eight impellers and seven deflectors are shown in this typical drawing, the number in your machine may vary depending on its design criteria.
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Di s as s em b l y an d Reas s em b l y In s t r u c t i o n s , 4B OB WA RNING: DISCONNECT A ND L OCK OUT EL ECTRICA L POWER BEFORE PERFORMING MA INTENANCE. CAUTION: Part s m u s t b e r eas s em b led i n ex act l y t he s am e r el at i v e p o s i t i o n s . Th er ef o r e, i t i s r eco m m en d ed t h at eac h p ar t b e m ar k ed as i t i s r em o v ed f r o m t h e m ac h i n e t o f ac i l i t at e l at er r eas s em b l y.
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IX. Tr o u b l es h o o t i n g Gu i d e PROB L EM INSUFFICIENT A IR OR GA S THROUGH SYSTEM P o s s i b l e C au s e Co r r ec t i v e A c t i o n • Incorrect rotation. Change motor leads to correct rotation. • Machine reassembled incorrectly in field. Disassemble machine and reassemble correctly. • Inlet, discharge or piping system partially blocked. Remove obstructions, clean filter. • Machine not running at design speed.
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IX. Tr o u b l es h o o t i n g Gu i d e (cont.) PROB L EM MA CHINE NOISY P o s s i b l e C au s e Co r r ec t i v e A c t i o n • Impellers and/or deflectors worn due to age Correct abrasive conditions if present; replace impellers or abrasion from dirty air or gas.and/or deflectors. I n d i c at i o n : m ac h i n e m al f u n c t i o n – i n t er n al n o i s e • Impeller(s) hitting after customer reassembly and/or impeller(s) slipping shaft due to heat or excessive inlet pressure.
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IX. Tr o u b l es h o o t i n g Gu i d e (cont.) PROB L EM MA CHINE VIB RATING P o s s i b l e C au s e Co r r ec t i v e A c t i o n • Packing box(es) too tight, too loose, wrong packing, packing dried or worn out, out of alignment. Adjust, relubricate or replace packing; align box(es). • Solids or liquids passing through machine. Disassemble, inspect and clean machine; install inlet filter to prevent further contamination. I n d i c at i o n : m ec h an i c al f au l t ( c o n t .
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Cu s t o m er Mai n t en an c e L o g DATE PROCEDURE COMMENTS INITIALS 19
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Spencer Corporate Headquarters and Manufacturing Plant, Windsor, CT USA ® P r o d u c t s & S er v i c es In d u s t r i al l y r at ed p r o d u c t s o f f er i n g ef f ec t i v e s o l u t i o n s f o r ai r an d g as m o v i n g p r o b l em s : • Multistage centrifugal blowers • Single stage centrifugal blowers • Gas boosters & hermetic gas boosters • Regenerative blowers • Positive displacement blowers & packages • Dissolved oxygen control systems • Comprehensive selection of tubing, fittings