Hydrotech Classic Series Stenner Basic Service Manual Bedienungsanleitung

Basic Service ManualClassic Series

9Section III Separating & Reconnecting SubassembliesRivet and Slot Identification

10 Separating & Reconnecting SubassembliesSeparating Subassemblies1. Turn the pump off and unplug the power cord.2. Hold the feed rate control sec

11Reconnecting Feed Rate to Motor1. Before reconnecting the feed rate control to the motor,confirm pressure spring is in place and place feed ratecont

12 Separating & Reconnecting Subassemblies1. Put the pump head (with main shaft) into the feed ratecontrol and turn it counterclockwise until the

13TUBE (wear part) How it worksThe tube is squeezed by two of the three rollers that movealong the tube. As the roller moves, the compressed sectionge

14 Maintenance Basics – TubeThe general cause of most tube failures is a lack of routinemaintenance. A tube failure is indicated by a leak or a lack o

15Determine cause of tube failure before installing new tube• Natural wear, end of service life.• Blockage, excessive pressure, worn/damaged parts: lo

16 Maintenance Basics – TubeExcessive back pressure at the point of injectionBlockage or restriction located inside the injection fittingportion of th

17Excessive back pressure at the point of injectionBlockage or restriction of the (check valve) duckbill due toinsoluble sediments or particulates fro

18 Maintenance Basics – TubeFrozen rollers in roller assembly (wear part)Chemical intrusion.A cracked pump head housingWear, chemical exposure, or inc

Basic Service ManualClassic SeriesINTRODUCTIONThe Stenner Classic Series chemical feed pumps are mechanical and will, during their servicelife, requir

19BEST PRACTICE Factory recommendedMount pump vertically and use spill recovery torun chemical back to tank in the event of tubefailure.Chemical drain

20 Maintenance Basics – TubeTube leaks around the fitting• Using pliers which can break internal seals and twist the tube.• Turning the fitting inside

21Tube fittings pulling out of the tube• Pulling excessively on the tube fitting when installing a replacement tube. Allow rollers to stretch tube int

22 Maintenance Basics – TubeOther tube failures• Using pump components not provided by Stenner can cause pump to malfunction.• Chemical incompatibilit

23Tube Replacement and CenteringRemoving the Old Pump Tube1. Turn pump off.2. Remove screws and then the cover by lifting the sideopposite the tube fi

24 Maintenance Basics – Tube5. Turn pump off.6. Without moving the roller assembly further, lift the tubefitting out of the housing slot and pull it t

25After Removing Old Tube1. Remove roller assembly, shaft, and housing.2. Use Fantastik®or similar (non-citrus) all purpose cleanerto clean all chemic

26 Maintenance Basics – Tube3. Turn dial ring to L setting.• While holding the threaded tube fitting, turn the pump onand allow it to jog the roller a

27IMPORTANT! Key for optimum performanceAvoid rotating wrist, whichcan result in a twisted tubethat will not center. Do notforce the tube and be caref

28 Maintenance Basics – Tube6. Grease (AquaShield®) the cover bushing ONLY and replacethe cover and the screws, leaving the front screw in-between the

2Hazardous Pressure/Chemical ExposureTo reduce risk of chemical exposure, the use of properpersonal protective equipment is mandatory whenworking on o

294. Turn the pump off, let go of fitting, and tighten the coverscrews. The cover is not on securely if there is a gapbetween the screw boss and the c

Feed Rate Control (FRC) How it worksNOTE Additional informationPin retracts when lifted.The feed rate control adjusts the output by utilizing acam/lif

31Feed Rate Wear DefinitionIndication of wear is apparent when the feed rate controlmakes a skipping or ratcheting sound. The pump output is lessthan

32 Maintenance Basics – FRCWorn lifter (wear part)Continuous repetition of the lifter riding on the cam can causea flat spot on the rounded point of t

33Feed Rate Parts Replacement1. Remove screws.2. Remove feed rate mounting plate and dial ring.3. Remove cam, spider assembly, and index plate.• If re

34 Maintenance Basics – FRCBEST PRACTICEFactory recommendedAdd grease (AquaShield®)to dial ring for easierturning.10.Place dial ring boss onto the cam

3514. To secure mounting plate, align its arrow with the FRChousing arrow and install the three screws.NOTE Additional informationThe dial ring will b

36 Maintenance Basics – FRCNOTE Additional informationAn arrow doesn’t exist onolder feed rate controlmounting plates. Place theplate so the “bump” is

Gear Case How it worksThe metal reduction gear and phenolic gear control the rpm ofthe feed rate and pumping head. The 45 series is 26 rpm andthe 85 s

38 Maintenance Basics – MotorGear Case Parts Replacement1. Replace gears that show visible wear or corrosion.2. Replace gear posts that are worn, rust

• #2 Phillips head screwdriver• Flat blade screwdriver• 3/8" open end wrench (to change index pin lifter)• Stenner grease (AquaShield®)• Fantasti

39Motor How it worksA cylindrical rotor with shaft is encased within a magneticcoil. When power is applied to the coil, the rotor rotates. Therotor’s

40 Maintenance Basics – MotorRotor Assembly Replacement1. Remove and set aside:• two motor housing screws (not shown)• motor housing (not shown)• plas

1. Disconnect power to pump.2. Remove the feed rate control with the pump head attachedand set on a flat surface to be used as a stand for themotor ca

5. Disconnect ground wire (with eyelet) and set screw aside.6. Cut the power cord and coil lead wires from motor cover atthe wire nut (four cuts total

General Information 439. Install new coil over rotor on the remaining amberbracket. The correct orientation is with two copperrods in the upper right

13. Crimp the stripped lead wires to each of the new coil lead wires.14. Tuck wire nuts into bottom of motor cover and secure coverback in place. (Bef

45Section VII Quick TipsThree Basic Subassemblies • Use subassemblies in field for quick replacement. Repair and refurbish parts at shop.• Use Stenner

46 Notes

www.stenner.comPhone: 904.641.1666US Toll Free: 800.683.2378Fax: 904.642.1012Hours of Operation (EST):Monday7 am - 5 pmTues.-Fri. 7 am - 5:30 pm3174 D

4 General InformationPart Identification Stenner Classic Series Chemical Feed PumpThree Basic Subassemblies

5Review Proper InstallationSection II Installation26-100 psi0-25 psi

6 InstallationSpill RecoveryIn case of tube rupture, chemical drains back into solution tank,preventing spillage on the ground/floor and keeps chemica

7Suction LineSuction line is 3" from tank bottom. This prevents picking upsediment, which can cause blockage in the check valve duckbilland disch

8 InstallationRain RoofRecommended in all outdoor or wet environments. Pump motoris ventilated, and water intrusion can cause motor damage.