Spencer 4BOB Multistage Centrifugal Blowers - Manual (Page 2)

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II IInnttrroodduuccttiioonn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . .3
IIII LLiim miitteedd W Waarrrraannttyy . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
IIIIII SSaaffeettyy PPrreeccaauuttiioonnss && O Oppeerraattiinngg G Guuiiddeelliinneess . . . . . . .3
IIVV HHaannddlliinngg aanndd SSttoorraaggee . . . . . . . . . . . . . . . . . . . . . . . . .4
Lifting and Moving . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
VV IInnssttaallllaattiioonn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Foundation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Blower Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1. Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2. Flexible Connectors . . . . . . . . . . . . . . . . . . . . . . .4
3. Butterfly Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
4. Filters, Silencers and Filter Silencers . . . . . . . . . .5
5. Check Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6. Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
7. Coupling Alignment . . . . . . . . . . . . . . . . . . . . . . . .5
8. Shaft Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
9. Motor Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . .7
VVII O Oppeerraattiioonn aanndd AAddjjuussttm meennttss . . . . . . . . . . . . . . . . . . . .7
Startup Precautions . . . . . . . . . . . . . . . . . . . . . . . . . .7
Blower Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Surge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Normal Operating Limits . . . . . . . . . . . . . . . . . . . . . .8
Periodic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Parallel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .8
VVIIII LLuubbrriiccaattiioonn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Motor Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Blower Bearings, 4BOH & 4BOB . . . . . . . . . . . . . . . .8
Flexible Couplings, 4BOH & 4BOB . . . . . . . . . . . . . .9
VVIIIIII M Maaiinntteennaannccee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Equipment Service . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Material Safety Data Sheets . . . . . . . . . . . . . . . . . . .9
Emergency Service . . . . . . . . . . . . . . . . . . . . . . . . . .9
Service and Operating Assistance . . . . . . . . . . . . . . .9
SOH Diagram and Recommended Spare Parts . . .10
SOH Disassembly/Reassembly Instructions . . . . . .11
4BOH Diagram and Recommended Spare Parts . .12
4BOH Disassembly/Reassembly Instructions . . . . .13
4BOB Diagram and Recommended Spare Parts . . .14
4BOB Disassembly/Reassembly Instructions . . . . .15
IIXX TTrroouubblleesshhoooottiinngg G Guuiiddee . . . . . . . . . . . . . . . . . . . . . . .16
Insufficient Air or Gas . . . . . . . . . . . . . . . . . . . . . . . .16
Machine Noisy . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Machine Vibrating . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Motor Hot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
II.. IInnttrroodduuccttiioonn
Welcome as a Spencer customer and owner of a new centrifugal
blower. Your blower incorporates exclusive Spencer engineering
technology, based on more than a century of leadership in blower
design and manufacture.
This manual contains the information you need for handling,
installing, operating and maintaining your new equipment correctly,
to ensure trouble-free operation and long service life. Please
read it thoroughly. Illustrations and instructions contained here
apply to three series of blowers; Standard Overhung (SOH),
Four Bearing Overhung (4BOH) and Four Bearing Outboard
(4BOB). If you need assistance in determining which model you
have, please consult your Spencer Representative.
Your Spencer Representative will also answer any questions you
may have about the procedures or recommendations presented
in this manual. The Spencer Service and Engineering Departments
can provide assistance as well.
Be sure the machine model number and serial number are cor-
rectly recorded in the boxes on the front cover of this manual.
These numbers may be found on the nameplate (see samples
below) located on the machine housing.
Having this information easily accessible will expedite parts
orders and other communication with the factory. To serve your
maintenance and repair needs promptly, Spencer maintains a
large inventory of parts for all blower models.
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