Gardner Denver EBB BB-7.5 HP Service manual

GARDNER DENVER
ELECTRA–SCREWSTATIONARY
BASE–MOUNTED,
BASE–MOUNTED with
INTEGRATED DRYER and
TANK– MOUNTED COMPRESSORS
MODELS
EBB_BB – 7.5 HP (ES–7.5)
EBB_CB – 10 HP (ES–10.0)
EBB_DB – 15 HP (ESS–15.0)
PARTS LIST &
OPERATING AND
SERVICE MANUAL
13–8–612
2nd Edition
March, 1997
Manual Brought to You By:IndustrialAirPower.com

13–8–612 Page i
TOTAL PRODUCT SUPPORT – GARDNER DENVER’S
CONTINUING COMMITMENT
TO YOUR AIR COMPRESSOR PERFORMANCE
Commitment to total product support continues long after the purchase of your quality Gardner DenverR
rotary screw compressor.
Gardner Denver original parts incorporate years of experience and improvements in design, materials
and quality assurance. Maintaining your compressor investment with Gardner DenverRparts will insure
protection for the air compressor unit and long, dependable service life.
Your authorized Gardner DenverRcompressor distributor maintains a complete stock of all common
maintenance parts, factory approved AEONtlubricants, and Gardner DenverRfactory warranted ex-
change air ends. In addition, authorized distributor technicians are factory trained, and can provide com-
plete diagnostic, compressor maintenance and repair services.
This manual is designed to assist you in maintaining high performance and receiving many years of de-
pendable service you expect from your Gardner Denver compressor.
REMANUFACTURED AIR ENDS
Whenever an air end requires replacement or repair,
Gardner DenverRoffers an industry unique, factory re-
manufactured air end exchange program. From its
modern Remanufacturing Center in Indianapolis, IN,
Gardner Denver is committed to supplying you with the
highestquality,factoryremanufacturedairendsthatare
guaranteed to save you time, aggravation and money.
Immediately Available
Repair downtime costs you money, which is why there
are over 200 remanufactured units in inventory at all
times, ready for immediate delivery.
Skilled Craftsmen
Our Remanufacturing assembly technicians average
over 20 years experience with air compression products.
Precision Remanufacturing
All potentially usable parts are thoroughly cleaned, in-
spected and analyzed. Only those parts that can be
brought back to original factory specifications are re-
manufactured. Every remanufactured air end receives
anewoverhaulkit: bearings,gears,seals,sleevesand
gaskets.
Extensive Testing
Gardner DenverRperforms testing that repair houses
just don’t do. Magnaflux and ultrasonic inspection spot
cracked or stressed castings, monochromatic light
analysis exposes oil leaks, and coordinate measure-
ment machine inspects to +/– .0001”, insuring that all
remanufactured air ends meet factory performance
specifications.
Warranty
Gardner Denver backs up every remanufactured air
end with a new warranty . . . 18 months from purchase,
12 months from service.
Gardner Denver remanufactured air ends deliver
quali-
ty without question . . . year in and year out.
Call Gardner Denver for information on the air end ex-
change program and the name of your authorized dis-
tributor.
Phone Number: 800–245–4946 or
FAX: [phone]

13–8–612 Page ii
FOREWORD
Gardner DenverElectra–Screwcompressors are the result of advanced engineering and skilled manufacturing.
To be assured of receiving maximum service from this machine the owner must exercise care in its operation and
maintenance.Thisbookiswrittentogivetheoperatorandmaintenancedepartmentessentialinformationforday–to–
dayoperation,maintenanceandadjustment.Carefuladherencetotheseinstructionswillresultineconomicalopera-
tion and minimum downtime.
Dangerisused toindicatethepresenceofahazard whichwillcause severepersonal
injury, death, or substantial property damage if the warning is ignored.
Warning is used to indicate the presence of a hazard which can cause severe per-
sonal injury, death, or substantial property damage if the warning is ignored.
Caution is used to indicate the presence of a hazard which will or can cause minor
personal injury or property damage if the warning is ignored.
Notice is used to notify people of installation, operation or maintenance informa-
tion which is important but not hazard–related.
This book covers the following models:
HP PSI Air Cooled
EBBQBB
7.5 100, 125, 150, 175 EBBRBB
EBBSBB
EBBQCB
10 100, 125, 150, 175 EBBRCB
EBBSCB
EBBQDB
15 100, 125, 150, 175 EBBRDB
EBBSDB

13–8–612 Page iii
TABLE OF CONTENTS
PAGE
Total Product Support – Gardner Denver’s Continuing Commitment To Your Air Compressor Performance i. . . . .
Remanufactured Air Ends i. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreword ii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintain Compressor Reliability And Performance With Genuine Gardner DenverrCompressor
Parts and Support Services iv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instructions for Ordering Repair Parts iv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index v thru vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Illustrations viii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model EBB – 7.5, 10 & 15 HP Electra–ScrewrCompressors Matrix/Menu ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 1, General Information 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 2, Installation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 3, Starting & Operating Procedures 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 4, Controls & Instrumentation 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 5, Lubrication, Oil Cooler, Oil Filter & Separator 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 6, Air Filter 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 7, Belt Drive 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 8, Maintenance Schedule 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 9, Trouble Shooting 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 10, Parts List 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 11, Optional Integrated Dryer, Service Instructions and Parts List 60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty Last Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13–8–612 Page iv
MAINTAIN COMPRESSOR RELIABILITY AND PERFORMANCE WITH
GENUINE GARDNER DENVERRCOMPRESSOR
PARTS AND SUPPORT SERVICES
Gardner DenverRCompressor genuine parts, engine-
ered to original tolerances, are designed for optimum
dependability––specificallyforGardnerDenverRcom-
pressor systems. Design and material innovations are
theresultofyearsofexperiencewithhundredsofdiffer-
ent compressor applications. Reliability in materials
and quality assurance are incorporated in our genuine
replacement parts.
Your authorized Gardner DenverRCompressor distrib-
utor offers all the backup you’ll need. A worldwide net-
work of authorized distributors provides the finest
product support in the air compressor industry. Your
local authorized distributor maintains a large inventory
of genuine parts and is backed up for emergency parts
by direct access to the Gardner Denver Machinery Inc.
MasterDistributionCenter(MDC)inMemphis,Tennes-
see.
Your authorized distributor can support your Gardner
Denver air compressor with these services:
1. Trained parts specialists to assist you in select-
ing the correct replacement parts.
2. Factory warranted new and remanufactured
rotary screw air ends. Most popular model
remanufacturedair ends aremaintainedin stock
at MDC for purchase on an exchange basis with
liberal core credit available for the replacement
unit.
3. A full line of factory tested AEONtcompressor
lubricantsspecificallyformulatedforuseinGard-
ner Denver compressors.
4. Repair and maintenance kits designed with the
necessary parts to simplify servicing your com-
pressor.
Authorized distributor service technicians are factory–
trained and skilled in compressor maintenance and re-
pair. They are ready to respond and assist you by pro-
viding fast, expert maintenance and repair services.
For the location of your local authorized Gardner Denver Air Compressor distributor refer to the yellow
pages of your phone directory or contact:
Distribution Center: Factory:
Gardner Denver Machinery Inc. Gardner Denver Machinery Inc.
Master Distribution Center 1800 Gardner Expressway
5585 East Shelby Drive Quincy, IL 62301
Memphis, TN 38141 Phone: [phone]
Phone: [phone] Fax: [phone]
(800) 245–4946
Fax: [phone]
INSTRUCTIONS FOR ORDERING REPAIR PARTS
When ordering parts, specify Compressor MODEL,
Method of Cooling, HORSEPOWER and SERIAL
NUMBER (see nameplate on unit). The Serial Number
is also stamped on top of the cylinder flange to the right
of the inlet housing.
All orders for Parts should be placed with the nearest
authorized distributor.
Where NOT specified, quantity of parts required per
compressor or unit is one (1); where more than one is
required per unit, quantity is indicated in parenthesis.
SPECIFY EXACTLY THE NUMBER OF PARTS RE-
QUIRED.
DO NOT ORDER BY SETS OR GROUPS.
To determine the Right Hand and Left Hand side of a
compressor,standatthemotorendandlooktowardthe
compressor. Right Hand and Left Hand are indicated
inparenthesisfollowingthepartname, i.e. (RH) & (LH),
when appropriate.