CDS-JOHN BLUE COMPANY DP-74.1 User manual

REV 02/2019
165 Electronics Blvd., Huntsville, AL 35824
Telephone: [phone] •FAX [phone] •Call Toll Free: 1-800-253-2583
DP-74.1, DP-74.1-GRI, DP-90.1 & DP-90.1-GRI
DIAPHRAGM PUMP
Parts & Instruction Manual
DP-74.1
DP-90.1
CDS-JOHN BLUE COMPANY
DIVISION OF ADVANCED SYSTEMS TECHNOLOGY, INC.
Printed in U.S.A. 7-M-41

SAFETY PRECAUTIONS
• Equipment should be operated only by trained, responsible people.
• A careful operator is the best insurance against an accident.
• FillsystemwithWATERrstandcheckoutput.
• Checkallvalves,ttings,hoseclamps,etc.fortightnessandsoundnessbeforeadmittinguidtosystem.
• Replacehoseswhenworn,crackedorifleaking.
TO THE OWNER
This manual has been prepared and illustrated to assist you in the maintenance of
your CDS-JOHN BLUE PUMP.
Enteryourserialnumberanddateofpurchaseinthespaceprovidedbelowforfuture
referenceinserviceinformationorfororderingparts.
Becauseourengineeringdepartmentisconstantlyimprovingproducts,wereserve
therighttomakedesignandspecicationchangeswithoutnotice.
Serial No. Purchase Date
1
BE CAREFUL! REMEMBER, SAFETY IS NO ACCIDENT
WARNING: USE OF THIS PRODUCT FOR ANY PURPOSES OTHER THAN ITS ORIGINAL INTENT,
ABUSE OF THE PRODUCT, AND/OR MODIFICATION TO THE ORIGINAL PRODUCT IS STRICTLY
PROHIBITED BY CDS-JOHN BLUE COMPANY. CDS-JOHN BLUE COMPANY RESERVES THE RIGHT
TO DENY WARRANTY OR LIABILITY CLAIMS IN ANY/ALL SITUATIONS INVOLVING MISUSE, ABUSE
OR MODIFICATION.
THE ORIGINAL INTENT OF THIS PRODUCT DOES NOT INCLUDE USE WHERE THE MAXIMUM
ALLOWED SPEED, PRESSURE, OR TEMPERATURE IS EXCEEDED, AND IT DOES NOT INCLUDE
APPLICATION UTILIZING FLUIDS THAT ARE NOT COMPATIBLE WITH THE PRODUCT’S COMPONENT
MATERIALS. DO NOT USE THIS PRODUCT WITH FLAMMABLE OR COMBUSTIBLE FLUIDS SUCH AS
GASOLINE, KEROSENE, DIESEL, ETC.…, AND DO NOT USE IN EXPLOSIVE ATMOSPHERES. FAILURE
TO FOLLOW THIS NOTICE MAY RESULT IN SERIOUS INJURY AND/OR PROPERTY DAMAGE AND
WILL VOICE THE PRODUCT WARRANTY. IF IN DOUBT ABOUT YOUR APPLICATION, CONTACT YOUR
STOCKING DEALER OR THE CDS-JOHN BLUE TECHNICAL STAFF AT 1-800-253-2583.
WARNING: This product can expose you to certain chemicals, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov.

INSTALLATION AND GENERAL SAFETY INFORMATION
1) Always mount pump with oil sight tube in upright position.
 2) Properselectionoftypeandsizehoseisvitaltogoodperformance:
- Diameter of inlet hose should be at least that of the pump inlet hose barb or greater.
- Use only hoses rated for maximum pressure rating of the pump.
 3) Useofapressurereliefdeviceonthedischargesideofpumpisrequiredtopreventdamagefrompressure
  buildupifthedischargeisclosedorblockedwhilethepowersourceisstillrunning.
 4) Installoneormoresuitablysizedstrainers(atleastoneandahalftimesowrate)onthepumpsupply.
  Thelteringserviceshouldbedimensionedasrequired.
 5) Donotoperatepumpabove145ºF(62ºC)liquidtemperature.
 6) Provideadequateprotectionbyplacingguardsaroundthemovingpartssuchastheshaftandpulleys.
 7) Attachthepumptoastrongbaseplateandanchoritwithboltssufcientlystrongtoholditinplace.
8) Periodically inspect the pump and the system components. Perform routine maintenance as required (see
Maintenance section).
 9) Wiringanelectricallydrivenpump,followallelectricalandsafetyregulations.
10) Ifthepumpisdrivenbyagasolineengine,makesurethattheareaiswellventilated.
Checks to make before using the pump
-Withthepumpnotrunning,checktomakesurethattheoilleveliscorrect.Repeatwiththepumprunning.
INSTALLATION DIAGRAMS OF THE PUMP
2
OIL LEVEL USED ON 2 DIAPHRAGM PUMPS OIL LEVEL USED ON 2 DIAPHRAGM PUMPS
DISCHARGE
t&~m
~STOP

-Checktomakesurethattheinlet,dischargeandby-passhoseshavethecorrectdiameter,i.e.neversmallerthan
the union on the pump. The hoses should not be crimped and the hose clamps should be sized for hose diameter.
-Preventanyhoserestrictionsandbesureconnectionsaretighttopreventairentering,sincetheseconditionswill
compromise pump performance.
-Ifpumpingfromatank,checktomakesurethatthecontrolunitby-passlineisnottooclosetotheinletline.Make
surethatitdoesnotcreateturbulenceinsidethetank.
-Checkairpressureinthepulsationdamper.ItshouldbekeptwithinspecsgivenintheChartontheServiceManual.
-Thepressureregulatorlevershouldbeturneddownward.Whenevertheby-passjetisused,thepressure
adjustmentlevermustbeturnedinthedownpositionsothatthepressureiszero.
-Checktomakesurethestrainerisclean.Besurethecartridgeisreinstalledandtightenedtoassurenosuction
leak.
-Checkforleaks.
Suction Head
Donotusesuctionheadforllingthetank.Avoidsuctionheadhigherthan10feet.
In this case, some troubles may occur in the pump parts.
Operation Instructions
- Start pump and let run for approximately one minute at zero pressure to facilitate priming. Once primed, the pump
isreadyandcanbesettorunatthedesiredpressurebymovingtheleverdownwardsandturningtheadjustment
knobclockwise.
-Operatingpumpaboverecommendedrpmwillnotimproveperformancebutrathermaydamagethepump.
Operationatrpmhigherthanspecicationsvoidsallwarranties.
-Workingpressureshouldbeselectedwiththedischargelineclosedandallliquidinby-pass.
-Whilethepumpisrunning,checktheoillevelinsightglass.Thisacts as an emergency indicator to signal
malfunction, e.g.ifthediaphragmbreaks,theoilwillbecomewhite.Stopthepumpimmediately.
- Do not rotate the shaft for long periods without liquid in the cylinders or in the suction line.
-IfthepumpisdrivenbyaPTOshaftandsprayermakesasharpturn,disconnectthetractorPTOtopreventdamage
totheshaftsupportsandtothecrankcase.
-Ifoilvolumeincreasesduetohighoperatingtemperatureandtheoilreachestheleveloftheplug,stopthepumpto
preventdamagefrominternaloverpressure.
After Use
Afteruse,inordertopreventdamage,ushpumpandletoperateforafewminutesatworkingpressurewith
a solution that will neutralize the liquid last pumped (refer to that manufacturer’s instructions). Afterward empty the
pump, so that the pressure drops to zero (“0”), and then let the pump run without liquids for two minutes.
To protect pump from freezing, flushpumpperinstructionsabove(afteruse)andthenflushwithstraight
RV-antifreeze.Emptythepumppertheinstructionsabove.
Ordinary Maintenance
Changeoilevery500hoursasfollows:
-Removecapfromoilsighttubeanddrainplug.
-Turnpumpupsidedownandrotatetheshaftbyhanduntiloilstopsowingout.
-Itisrecommendedtomakeaninsidewashingwithgasolineordieseloil.
-Putthedrainplugbackandpouroilintosighttubewhileturningthepumpshaft.Besureoilisattheindicatedlevel
and care not to exceed it.
-Startthepumpatpressure“0”forafewminutestoallowthecorrectlubricationofinsideparts,thencheckoillevel.
3

Coupling to Agricultural Machinery
 1) CheckthatthePTOofthemachinedoesnotexceedthemaxrpmshownonthepumpplate.
 2) IfthePTOissynchronizedwiththemotorspeed,consulttheservicemanualtogetgearnumberandrpm
corresponding to the max pump rotation speed.
3) When the rpm of the PTO is higher than the max speed, use the suggested reduction gear.
 4) DisconnectthePTOwhenmovingwithpumpoutofservice;ifthatisimpossible,thendisengagementshould
beprovided.
5) Disconnect the PTO when changing direction.
Coupling to electric motors and gasoline engines
1) For direct coupling always use the suggested reduction gear.
 2) Forcouplingwithpulley,checkalignmentofthetwopulleys.
Maximum Transmission Ratio: = K
Pump RPM
After determining K, you can establish the motor or pump pulley diam.:
Motor Pulley Pitch Diam.: m.p.ø = = K
K
Pump Pulley Pitch Diam. - p.o.ø = Motor Pulley Pitch ø x K
MAINTENANCE FOR DIAPHRAGM PUMPS
Routinemaintenanceonthepumpincludeschangingthediaphragms,oil,valveassembly,o-rings,allofwhichare
normal wear parts.
1) Valve assembly and O-Rings Replacement
Occasionallydebriscancausethevalvestonotseatproperlyordamageo-rings.Tocheckforthisproblemplease
followthesesteps:
 - Removethevalvecover(consulttheexplodeddrawingofthepump),removethevalves,checkfordebrisand
wear as well as o-rings.
- Replace necessary parts and reassemble.
 - Repeatforallvalves.Consultthepartslistforthevalvekitoro-ringkitpartnumbers.
4
Motor RPM
Pump Pulley Pitch Diameter
I
c::::::,

2) Diaphragm Replacement
- Draintheoilfromthepumpbyremovingcapunderthecrankcase.Rotatetheshafttoremoveexcessoil.
- Removethepumpheadsonebyone.
- Useahexwrenchtoremovethediaphragmlocknut:removethenut,retainingwasher,diaphragmandsupport
washer.
- Ifyouremovedthepistonsleeves,replacethemoneatatimeintheirpreviousposition(bestmarkthemwhen
removing).
- Insert the new diaphragm on the piston and install it with its nut. Use these tightening torques.
• 10mm.=36ft.-lbs.
• 12 mm.=50 ft.-lbs.
• 12 mm.=72 ft.-lbs.
ThediaphragmsshouldbereplacedwiththepistonatitsbottomDPandtheedgesinsertedperfectlyintothegroove
all the way around.
- Replace the heads and attach them with their bolts.
- Rellpumpwithoilthroughtheglassandrotatetheshafttodistributeoilandlltoproperlevel.Repeatallthe
checksdescribedaboveinthesection“Checkstomakebeforeusingthepump.”
- Checkoillevelwiththepumprunningwithnopressureuntilallairbubbleshavebeenvented.
- When the air has been bled off, close the cap on the oil sight tube.
- Aftertherstinspectionoftheoillevelasabove,checkoncemoretheoillevelwiththepumprunningwithpres-
sure.
3) Oil Change
Normallytheoilischangedwheneverthediaphragmischanged.Dependingonworkconditions,oilshouldbe
changedevery500hours.
Theoilchangeprocedureisdescribedinnumber2above.
✮ FOR TROUBLESHOOTING CHART, SEE BACK COVER ✮
5

DP-74.1 And DP-74.1-GRI
PUMP DIMENSIONS
6
239 [9.4"]
[1. //
51 [2,0"]
219 [8,6"]
201 [7,9"]
2 [2,8" 29 [5.1"
25 [4,9"
145 [5,7"]
-
l[)
L...J r,
::::
(J\ '°
(\J CX)
L...J
:::: (\J
'° (\J
(Y)
L...J
74 [2 ,9"]

15
21
40
61
DP-74.1
7
OPTIONAL
47 48 49
OPTIONAL
46
16
J
~9 10 1t
I~ I

POS PART NO. DESCRIPTION QTY POS PART NO. DESCRIPTION QTY
 1 DP-03004031 PISTONDIAPHRAGM 3 27 DP-03001161 SPACER 1
 1 DP-03004000 DESMOPANPISTONDIAPHRAGM 3 28 DP-94004776 CONRODRING 2
 1 DP-03004036 HPSPISTONDIAPHRAGM 3 29 DP-03001261 SPACER 1
■ 2 DP-03982197 VALVEASSY. 6 30 DP-80133100 SHAFTRINGD.45 1
3 DP-03020209 HEAD 3 31 DP-03000509 CONROD 3
■*4 DP-03002936 VALVESEAL 6 32 DP-03000609 PISTON 3
 5 DP-80321800 O-RING3.0X22 1 33 DP-81850250 PISTONRING 6
 6 DP-31151509 OUTLETFLANGEG.1/2 1 34 DP-85200600 PISTONPIN 3
 7 DP-31151761 FLANGE 1 35 DP-80000300 RINGDIA.10 6
 8 DP-03000309 SUCTIONCOVER 1 36 DP-86318500 SCREWM10X16 4
 9 DP-86213100 SCREWM6X18 3 37 DP-17001361 COVER 1
 *10 DP-80321066 O-RING2,62X101,27 1 *38 DP-80226410 OILSEAL 1
 *11 DP-80320830 O-RING2,62X36,14 1 39 DP-03001561 SPACER 1
 12 DP-03000109 CRANKCASE 1 40 DP-03001726 CRANKSHAFT“VF”VERSION 1
 13 DP-86290000 SCREWM8X55 4 40 DP-03003826 CRANKSHAFT“RT2”VERSION 1
 14 DP-03001461 MOUNTING RAIL 2 41 DP-81293300 BALLBEARINGDIA.45X75X16 1
 15 DP-80320000 O-Ring2,62X22,22 1 42 DP-03000701 PISTONSLEEVEVERS.“VF”&“VC” 3
 16 DP-84054200 90DEG.ELBOW CONNECTOR 1 42 DP-03003601 PISTONSLEEVEVERS.“RT2” 3
 17 DP-82004900 WINGNUTM34 1 43 DP-86289300 SCREWM8X50 11
 18 DP-83506210 NIPPLESG.3/4-M34 1 44 DP-03002197 KITDIAPHRAGMWASHER/SCREW 3
 19 DP-03001631 VALVESEAL 1 46 DP-24304097 SAFETYVALVE40BAR(OPT) 1
 20 DP-86273000 SCREWM8X30 2 47 DP-31148232 PLAINSAFETYCONE(OPT) 2
 21 DP-84368500 WASHERDIA.8,4X15X1,5 2 48 DP-84381000 WASHER(OPT) 4
 22 DP-23000832 OILFILLER 1 49 DP-86321200 SCREWM10X20(OPT) 4
 23 DP-80318000 O-RING2,62X15,08 1 61 DP-84358500 WASHER 2
 24 DP-85275000 OILFILLERCAP 1 62 DP-86210800 SCREWM6X16 2
 25 DP-82412000 GASKETDIA.45X9X1.5 1 63 DP-31891697 KIT 1
 26 DP-81264600 BALLBEARINGDIA.20X52X15 1
*PUMP KIT ORDER DP-03987497
■ VALVE KIT ORDER DP-03987597
DP-74.1 & DP-74.1-GRI
8

9
DP-74.1-GRI
PARTS LIST
FOR DP-74.1-GRI
PART
ITEM NUMBER DESCRIPTION QTY.
2 DP-80212600 O-RING 30X60X10 1
3 DP-80643600 KEY 1
4 DP-31079542 PINION GEAR 1
5 DP-81264600 BALL BEARING 1
6 DP-85350500 OIL SIGHT GLASS 1
7 DP-86256600 SCREW 5/1
64
8 DP-85351100 FILLER PLUG 1
9 DP-86321200 SCREW M10X20 4
11 DP-31128409 GEAR BOX 1
12 DP-86256900 SELF LOCKING SCREW 3
14 DP-31072942 GEAR 1
15 DP-80308090 O-RING 1,78X82, 27 1
16 DP-80318700 GASKET 1
17 DP-85263200 PLUG G 1/
21
18 DP-31128509 CENTERING FLANGE ENGINE/GEAR BOX 1
DP-80212650
PP-85351100
DP-31191409
DP-82414100
DP-85262953 PLUG

DP-90.1 And DP-90.1-GRI
PUMP DIMENSIONS
10
238 [9.4"] 72 [2,8"] 201 [7,9"]
29 [5.1"
"] 9 0, "]
lf)
LJ
o I cu
IUH[4,0~ I

61
15
11
DP-90.1
OPTIONAL
46
OPTIONAL
47 48 49
31~
29 30
sl
~ 7 55:1~
62 \ \~~ ... ~
"\, •.~
8 c;P ~ r--. · I ·~---
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w i\~____,-.
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9 10 11 14 13
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. 41 40
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c&-

DP-90.1 & DP-90.1-GRI
POS PART NO. DESCRIPTION QTY POS PART NO. DESCRIPTION QTY
 1 DP-03004031 PISTONDIAPHRAGM 3 26 DP-81264600 BALLBEARING 1
 1 DP-03004000 DESMOPANPISTONDIAPHRAGM 3 27 DP-03001161 SPACER 1
 1 DP-03004036 HPSPISTONDIAPHRAGM 3 28 DP-94004776 CONRODRING 2
■ 2 DP-03982197 VALVEASSY. 6 29 DP-03001261 SPACER 1
3 DP-03020209 HEAD 3 30 DP-80133100 SHAFT RING 1
■*4 DP-03002936 VALVESEAL 6 31 DP-03000509 CONNECTINGROD 3
 5 DP-80321800 O-RING3,0X22 1 32 DP-03000609 PISTON 3
 6 DP-31151509 OUTLETFLANGEG.1/2 1 33 DP-81850250 PISTONRING 6
 7 DP-31151761 FLANGE 1 34 DP-85200600 PISTONPIN 3
 8 DP-03000309 SUCTIONCOVER 1 35 DP-80000300 RING 6
 9 DP-86213100 SCREWM6X18 3 36 DP-86318500 SCREWM10X16 4
 *10 DP-80321066 O-RING 1 37 DP-17001361 COVER 1
 *11 DP-80320830 O-RING 1 *38 DP-80226410 OILSEAL 1
 12 DP-03000109 CRANKCASE 1 39 DP-03001561 SPACER 1
 13 DP-86290000 SCREWV8X55 4 40 DP-03001826 CRANKSHAFT“VF”VERSION 1
 14 DP-03003361 MOUNTING RAIL 2 41 DP-81293300 BALL BEARING 1
15 DP-80320000 O-RING 1 42 DP-03000801 PISTON SLEEVE 3
 16 DP-84054200 90DEG.ELBOW CONNECTOR 1 43 DP-86289300 SCREWM8X50 11
 17 DP-82004900 WINGNUTM34 1 44 DP-03002197 DIAPHRAGMWASHER/SCREWKIT 3
 18 DP-83506210 NIPPLES 1 46 DP-24304097 SAFETYVALVE(OPT) 1
 19 DP-03001631 VALVESEAL 1 47 DP-31148232 PLAINSAFETYCONE(OPT) 1
 20 DP-86273000 SCREWM8X30 2 48 DP-84381000 WASHER(OPT) 4
 21 DP-84368500 WASHER 2 49 DP-86321200 SCREW(OPT) 4
 22 DP-23000832 OILFILLER 1 61 DP-84358500 WASHER 2
 23 DP-80318000 O-RING 1 62 DP-86210800 SCREWM6X16 2
 24 DP-85275000 OILFILLERCAP 1 63 DP-31891697 KIT 1
25 DP-82412000 GASKET 1
*PUMP KIT ORDER DP-03987497
■ VALVE KIT ORDER DP-03987597
12

13
DP-90.1-GRI
PARTS LIST
FOR DP-90.1-GRI
PART
ITEM NUMBER DESCRIPTION QTY.
2 DP-80212600 O-RING 30X60X10 1
3 DP-80643600 KEY 1
4 DP-31079542 PINION GEAR 1
5 DP-81261600 BALL BEARING 1
6 DP-85350500 OIL SIGHT GLASS 1
7 DP-86256600 SCREW 5/1
64
8 DP-85351100 FILLER PLUG 1
9 DP-86321200 SCREW M10X20 4
11 DP-31128409 GEAR BOX 1
12 DP-86256900 SELF LOCKING SCREW 3
14 DP-31072942 GEAR 1
15 DP-80308090 O-RING 1,78X82, 27 1
16 DP-80318700 GASKET 1
17 DP-85263200 PLUG G 1/
21
18 DP-31128509 CENTERING FLANGE ENGINE/GEAR BOX 1
DP-80212650
PP-85351100
DP-31191409
DP-82414100
DP-85262953 PLUG

ITEM PART NUMBER DESCRIPTION QTY
1 SC-24031032 VALVE HOUSING 1
2 SC-83008000 PRESSURE GAUGE 0-100 BAR 1
2 SC-83001000 PRESSURE GAUGE 0-24 BAR 1
3 SC-80306000 O-RING 1
4 SC-84052100 90 DEGREE ELBOW CONN. 1
5 SC-82004210 WING NUT 1
6 DP-84554410 LEFT TAP 1
7 SC-84154400 OUTLET STRAIGHT PORT 2
8 DP-82001000 WING NUT 2
9 DP-84554400 RIGHT TAP 1
10 DP-85258500 CAP 1
11 DP-84358500 WASHER 2
12 SC-85242600 SCREW 2
13 SC-81152500 NUT 4
14 DP-80321800 O-RING 1
15 SC-80305900 O-RING 1
16 SC-24032051 VALVE SEAT 1
17 SC-86184150 SCREW 1
18 SC-24031951 POPPET 1
19 SC-24031336 HPS DIAPHRAGM 1
20 DP-84353900 WASHER 4
21 SC-86194420 SCREW 4
22 SC-24031132 FLANGE 1
23 SC-80307500 O-RING 1
24 SC-80317500 O-RING 1
25 SC-85114800 PIN 1
26 SC-24031453 GUIDING PISTON 1
27 SC-24031232 LEVER 1
28 SC-24031648 SPRING 40 BAR 1
28 SC-24055048 SPRING 15 BAR 1
29 SC-24032132 KNOB 1
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14
SC-1132-2 Pressure Regulator, 2 Outlets
SC-86241400
SC-81452500
27
28 fl-
26 25 24 23 22
2
11 10 .rr
8

15
DIVISION OF ADVANCED SYSTEMS TECHNOLOGY, INC.
290PinehurstDrive•Huntsville,Alabama35806
P.O.Box1607•Huntsville,Alabama35807
Telephone:(256)721-9090•Fax(256)721-9091
CallTollFree:1-800-253-2583
TROUBLES AND CURES
TROUBLES CAUSES CURES
The pump doesn’t reach the
required pressure
• valveshavewornseats
• suctionhosewithairpocketsorirregularelbows
• worn nozzles or with wrong diameter
(see chart)
• Clogged strainer
• checkvalves
• checkhoses
• checknozzles
• clean strainer
Thepressuregaugeuctuates • pumpissuckingair,orairhasn’tbeenevacuatedcompletely
• valvesblocked
• startpumpwiththegunopen,toevacuate
the air and commutate
• cleanandchangevalves
Oil is changing color into white • Diaphragm failures. Stop pump immediately. • Drain the pump of oil. Dismantle the head
and change diaphragms. Fill to the correct
oillevel.
Output drops and the pump is
noisy
• oillevelistoolow • topupwithoiltocorrectlevel(halfwayof
the sump), when pump is operating
Oil comes out of the discharge
pipe
• oneormorediaphragmsarebroken • Drain the pump of oil. Dismantle the head
and change diaphragms. Fill to the correct
oillevel.
Thepressuregaugeuctuates
Theliquidowisirregular • the air in the pulsation-damper is incorrectly set • checkpressureinpulsationdamper(see
chart)
THIS WARRANTY IS IN LIEU OF ALL OTHER WRITTEN OR EXPRESS WARRANTIES AND REPRESENTA-
TIONS. ANY IMPLIED WARRANTIES INCLUDING MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR
PURPOSE ARE EXPRESSLY LIMITED TO THIS WRITTEN WARRANTY. CDS-JOHN BLUE COMPANY SHALL
NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES.
Use of this product for any purpose other than its original intent, abuse of the product, and/or any modication to the
original product is strictly prohibited by the manufacturer, CDS-John Blue Company. Any modication to the product
should be approved by CDS-John Blue Company prior to use. CDS-John Blue Company will deny Warranty claims and
liability in any situation involving misuse, abuse or modication.
Each new machine or component manufactured by CDS-John Blue Company through original buyer is warranted by
CDS-John Blue Company to buyer and to any party or parties to whom buyer may resell, lease or lend the equipment to be
free from defects in material and workmanship under normal use and service. This obligation of CDS-John Blue Company
under this warranty is limited to the repair or replacement of defective parts or correction of improper workmanship of
any parts of such equipment which shall within one year from the date of CDS-John Blue’s original delivery thereof, be
returned to CDS-John Blue’s factory, transportation charges prepaid and which CDS-John Blue Company shall determine
to its satisfaction upon examination thereof to have been thus defective. When it is impractical to return the defective parts
of such equipment to CDS-John Blue’s factory, then CDS-John Blue shall have no liability for the labor cost involved in
repairing or replacing any such parts and shall be liable solely for supplying the material necessary to replace or repair the
defective parts, provided that prior thereto CDS-John Blue Company shall have determined to its satisfaction that any such
parts are thus defective.
This warranty shall not apply to any equipment which shall have been repaired or altered outside CDS-John Blue’s factory
in any way so as to affect its durability, nor which has been subjected to misuse, abuse, negligence or accident, or operated
in any manner other than in accordance with operating instructions provided by CDS-John Blue Company. This warranty
does not extend to repairs made necessary by the use of inferior or unsuitable parts or accessories, or parts or accessories not
recommended by CDS-John Blue Company.
CDS-John Blue Company makes no warranties in respect to parts, accessories or components not manufactured by
CDS-John Blue Company, same ordinarily being warranted separately by their respective manufacturers.
DIVISION OF ADVANCED SYSTEMS TECHNOLOGIES HUNTSVILLE, AL(256) 721-9090
165 Electronics Blvd., Huntsville, AL 35824
DIVISION OF ADVANCED SYSTEMS TECHNOLOGY, INC.
LIMITED WARRANTY