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4.1.3.17 V-Belt Alignment

Although alignment is not as critical in V-belt drives as in others, proper alignment is essential for long
belt and sheave life. First, make sure that drive shafts are parallel. The most common causes of mis-
alignment are non-parallel shafts and improperly located sheaves. Where shafts are not parallel, belts on
one side are drawn tighter and pull more than their share of the load. As a result, these belts wear out
faster requiring the entire set to be replaced before it has give maximum service. If misalignment is in the
sheave, belts will enter and leave the grooves at an angle, causing excessive belt cover and sheave
wear.

1

2

2

3

Figure 13: V-belt alignment

4.1.3.18 Check Sheave Mounting and Alignment

"V"-Belt drives do not require alignment to as close tolerances as most other types of drives-but unless
the belts enter and leave the sheaves in a relatively straight line, wear is accelerated.

The two most common causes of misalignment are shown: (a) the shafts of the driver and driven ma-
chines are not parallel, and (b) the sheaves are not located properly on the shafts. To check alignment,
all you need is a straight-edge or, for drives with longer centers, a steel tape. If these aren't available,
you can, as a last resort, even use heavy string. Just line the straight edge or tape along the outside face
of both sheaves as shown in the illustration. Misalignment will show up as a gap in between the sheave
face and straight edge, or perhaps as a "break" in the tape or string. Make sure that the width of the out-
side land is equal on both sheaves, when using this method.

4.1.3.19 V-Belt Drive Tensioning Method

Before attempting to tension any drive it is important that the sheaves be properly installed and aligned.
The V-belts should be placed over the sheaves and in the grooves without forcing them over the sides of
the grooves

1.

With all belts in their proper groove adjust the centers to take up all slack and until the belts are
fairly tight.

2.

Start the drive and continue to adjust until the belts have only a slight bow on the slack side of the
drive while operating under load. See sketch.

3.

After a few days operation the belts will seat themselves in the sheave grooves and it may become
necessary to readjust so that the drive again shows a slight "bow" in the slack side.

4.1 Pre-installation

Model Trash Hog II Installation, Operation, and Maintenance Manual

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Содержание Goulds Pumps Trash Hog II

Страница 1: ...Installation Operation and Maintenance Manual Model Trash Hog II ...

Страница 2: ......

Страница 3: ...on guidelines 14 4 1 2 Foundation requirements 14 4 1 3 Baseplate mounting procedures 14 4 1 4 Grout the baseplate 26 4 1 5 Bypass piping considerations 26 4 1 6 Suction Piping 26 4 1 7 Discharge Piping 28 4 1 8 Piping checklists 28 4 2 Air Release Line 30 5 Commissioning Startup Operation and Shutdown 31 5 1 Starting 31 5 2 Warnings 31 5 3 Install the coupling guard 32 5 4 Lubrication 34 5 5 Impe...

Страница 4: ...assembly 41 6 8 Impeller Nut Installation Torque 41 6 9 Winter Storage 41 7 Troubleshooting 43 7 1 Troubleshooting Guide 43 8 Pump Spare Parts List 45 8 1 Trash Hog II Type EL Long Coupled 46 8 2 Pump Spare Parts List 47 8 3 Trash Hog II Type EL Long Coupled 48 Table of Contents 2 Model Trash Hog II Installation Operation and Maintenance Manual ...

Страница 5: ...t physical injury Risk of serious injury or death If any pressure containing device is over pressurized it can explode rupture or discharge its contents It is critical to take all necessary meas ures to avoid over pressurization Risk of death serious personal injury and property damage Installing operating or maintaining the unit using any method not prescribed in this manual is prohibited Prohib ...

Страница 6: ...application can cause over pressurization overheating and or unstable operation Do not change the service application without the approval of an authorized ITT representative 1 1 2 1 Safety terminology and symbols About safety messages It is extremely important that you read understand and follow the safety messages and regulations carefully before handling the product They are published to help p...

Страница 7: ... or parts are not accepted by an authorized recycling company then return them to the nearest ITT representative Waste and emissions regulations Observe these safety regulations regarding waste and emissions Dispose appropriately of all waste Handle and dispose of the pumped fluid in compliance with applicable environmental regulations Clean up all spills in accordance with safety and environmenta...

Страница 8: ...losing equipment to reduce noise Local law may provide specific guidance regarding expo sure of personnel to noise and when noise exposure reduction is required Temperature WARNING Equipment and piping surfaces may exceed 130ºF 54ºC in operating process plants Clear visual warnings or other indicators should alert personnel to surfaces that may reach a poten tially unsafe temperature Do not touch ...

Страница 9: ...e of the risk of a sudden start if the product is used with an automatic level control Beware of the starting jerk which can be powerful Rinse the components in water after you disassemble the pump 1 1 2 6 Hazardous liquids The product is designed for use in liquids that can be hazardous to your health Observe these rules when you work with the product Make sure that all personnel who work with bi...

Страница 10: ...roved spare parts and accessories authorized by ITT are used in Ex approved prod ucts Limitations The warranty does not cover faults caused by these situations Deficient maintenance Improper installation Modifications or changes to the product and installation made without consulting ITT Incorrectly executed repair work Normal wear and tear ITT assumes no liability for these situations Bodily inju...

Страница 11: ...our personal safety be careful when you handle nails and straps 4 Contact your sales representative if anything is out of order 2 2 Transportation guidelines 2 2 1 Precautions WARNING Stay clear of suspended loads Observe accident prevention regulations in force 2 2 2 Pump handling WARNING Dropping rolling or tipping units or applying other shock loads can cause property damage and or personal inj...

Страница 12: ... all times Seek assistance if necessary Do not attach sling ropes to shaft ends Table 1 Methods Pump type Lifting method A bare pump without lifting handles Use a suitable sling attached properly to solid points like the casing the flanges or the frames A bare pump with lifting lugs Use a suitable sling attached to the lifting lugs in the casing and bearing cartridge A base mounted pump Use slings...

Страница 13: ...Protect the product against humidity heat sources and mechanical damage Do not place heavy weights on the packed product 2 3 2 Pump storage requirements Storage requirements depend on the amount of time that you store the unit The normal packaging is designed only to protect the unit during shipping 2 3 Storage guidelines Model Trash Hog II Installation Operation and Maintenance Manual 11 ...

Страница 14: ...e from heat dirt and vibrations 2 3 3 Frostproofing This table shows to what degree the pump is frostproof When the pump is Then Operating The pump is frostproof Immersed in a liquid The pump is frostproof Lifted out of a liquid into a temperature below freezing The impeller might freeze Sitting idle The pump might freeze 2 3 Storage guidelines 12 Model Trash Hog II Installation Operation and Main...

Страница 15: ...3 Product Description 3 Product Description Model Trash Hog II Installation Operation and Maintenance Manual 13 ...

Страница 16: ... Provide a flat substantial concrete foundation in order to prevent strain and distortion when you tighten the foundation bolts 4 1 3 Baseplate mounting procedures 4 1 3 1 Prepare the baseplate for mounting 1 Remove all the attached equipment from the baseplate 2 Clean the underside of the baseplate completely 3 If applicable coat the underside of the baseplate with an epoxy primer Use an epoxy pr...

Страница 17: ...en you take the readings 6 Hand tighten the nuts for the foundation 4 1 3 3 Install the baseplate using jackscrews Tools required Anti seize compound Jackscrews Bar stock Two machinist s levels 1 Apply an anti seize compound on the jackscrews The compound makes it easier to remove the screws after you grout 2 Lower the baseplate carefully onto the foundation bolts and perform these steps a Cut the...

Страница 18: ...kscrews down so that they rest on their plates on the foundation surface 5 Level the pump mounting pads NOTICE Remove all dirt from the mounting pads in order to ensure that the correct leveling is achieved Failure to do so can result in equipment damage or decreased performance a Put one machinist s level lengthwise on one of the two pads b Put the other level across the center of the two pads c ...

Страница 19: ..._____________ 7 ____________________ 8 ____________________ 9 ____________________ 10 ___________________ 11 ___________________ 12 ___________________ 13 ___________________ 14 ___________________ 15 ___________________ 16 ___________________ 17 ___________________ 18 ___________________ Level measurements 4 1 Pre installation Model Trash Hog II Installation Operation and Maintenance Manual 17 ...

Страница 20: ...n This ensures correct alignment when both the pump and the driver are at op erating temperature Periodically This follows the plant operating procedures 4 1 3 7 Alignment measurement guidelines Guideline Explanation Rotate the pump coupling half and the driver coupling half together so that the indicator rods have contact with the same points on the driver coupling half This prevents incorrect me...

Страница 21: ... 4 1 3 10 Perform angular alignment for a vertical correction 1 Set the angular alignment indicator to zero at the top center position 12 o clock of the driver cou pling half Y 2 Rotate the indicator to the bottom center position 6 o clock 3 Record the indicator reading When the reading val ue is Then Negative The coupling halves are farther apart at the bottom than at the top Perform one of these...

Страница 22: ... 3 o clock 3 Record the indicator reading When the reading value is Then Negative The coupling halves are farther apart on the right side than the left Perform one of these steps Slide the shaft end of the driver to the left Slide the opposite end to the right Positive The coupling halves are closer together on the right side than the left Perform one of these steps Slide the shaft end of the driv...

Страница 23: ...ed at four points 90 apart at the operating temperature 1 Set the parallel alignment indicator P to zero at the top center position 12 o clock of the driver coupling half Y 2 Rotate the indicator to the bottom center position 6 o clock 3 Record the indicator reading When the read ing value is Then Negative The pump coupling half X is lower than the driver coupling half Y Remove shims of a thicknes...

Страница 24: ...n parallel alignment when the parallel indicator P does not vary by more than as measured at four points 90 apart at the operating temperature 1 Set the parallel alignment indicator P to zero on the left side of the driver coupling half Y 90 from the top center position 9 o clock 2 Rotate the indicator through the top center position to the right side 180 from the start position 3 o clock 3 Record...

Страница 25: ...through the top center position to the right side 180 from the start position 3 o clock 3 Record the indicator readings 4 Make corrections according to the separate instructions for angular and parallel alignment until you obtain the permitted reading values 4 1 3 16 V Belt Drive Installation Checks Use the following steps and guidelines to make sure that the v belt drive is properly installed and...

Страница 26: ...eave grooves Observe the operation of the drive under its highest load condition usually starting A slight bowing of the slack side of the drive indicates proper tension If the slack side remains taut during the peak load the drive is too tight Excessive bowing or slippage indicates insufficient tension If the belts squeal as the motor comes on or at some subsequent peak load they are not tight en...

Страница 27: ...s To check alignment all you need is a straight edge or for drives with longer centers a steel tape If these aren t available you can as a last resort even use heavy string Just line the straight edge or tape along the outside face of both sheaves as shown in the illustration Misalignment will show up as a gap in between the sheave face and straight edge or perhaps as a break in the tape or string...

Страница 28: ...e before any valves to the source of suction When to install a minimum flow orifice You can size and install a minimum flow orifice in a bypass line in order to prevent bypassing excessive flows Consult your ITT representative for assistance in sizing a minimum flow orifice When a minimum flow orifice is unavailable Consider an automatic recirculation control valve or solenoid operated valve if a ...

Страница 29: ...on lift To prevent leaks make sure all piping con nections are tightly sealed The piping gasket sealant used should be compatible with the liquid being pumped 12 If a single suction line is installed into a sump it should be installed away from the sump wall at a minimum distance equal to 1Y z times the diameter of the suction line If more than one suction line is installed in the same sump separa...

Страница 30: ...g out the liquid from pump casing 4 1 8 Piping checklists 4 1 8 1 Suction piping checklist Suction piping checks Check Explanation comment Checked This minimizes the risk of cavitation in the suction in let of the pump due to turbulence Check that elbows in general do not have sharp bends Check that the suction piping is one or two sizes larger than the suction inlet of the pump Install an eccentr...

Страница 31: ...oiding the warranty Make sure that the suction piping is free from air pockets This helps to prevent the occurrence of air and cavita tion in the pump inlet Check that the piping is level or slopes downward from the liquid source Make sure that no part of the suction pip ing extends below the suction flange of the pump Make sure that the suction piping is ade quately submerged below the surface of...

Страница 32: ...se to the discharge check valve as possible We recommend the following line sizes for the following ITT pumps 3DTH 4DTH 3 4 Line 6ETH 1 Line BGTH 10GTH 1 1 4 Line NOTICE 1 This line size may be increased or decreased depending on application 2 Direct the air release line back into the sump not into the pump suction line Leave the end of the line open to atmosphere Do not submerge into the liquid b...

Страница 33: ... level Check drive coupling and V belt alignment Refer coupling alignment for instructions Check motor wiring 5 2 Warnings WARNING 1 All electrical work must be done by a licensed electrician 2 Before working on pump and or motor be certain that the electrical power is off at the main junc tion box 3 Disconnect the fuse or circuit breaker and have the main switch tagged DO NOT ENERGIZE THIS SWITCH...

Страница 34: ... in serious physical injury or death Always disconnect and lock out power to the driver before performing any installa tion or maintenance tasks Electrical connections must be made by certified electricians in compliance with all international national state and local rules Refer to driver coupling gear manufacturer s installation and operation manuals IOM for specific instructions and recommendat...

Страница 35: ...coupling guard half must fit around the end plate 1 2 3 Item Description 1 Annular groove 2 End plate pump end 2 Guard half Figure 16 Annular groove in coupling guard 4 Use a bolt a nut and two washers to secure the coupling guard half to the end plate Tighten se curely 5 3 Install the coupling guard Model Trash Hog II Installation Operation and Maintenance Manual 33 ...

Страница 36: ...ighten all nuts on the guard assembly 5 4 Lubrication A BEARING LUBRICATION Refer to drawing Use good grade SAE 30 non detergent motor oil Units are shipped 30TH 40TH 6ETH 8GTH 10GTH 20 fl oz minimum 20 fl oz minimum 20 fl oz minimum 20 fl oz minimum 20 fl oz mini mum without oil and must be filled before starting Fill bearing housing oil cavity with oil through filter provided on top of bearing h...

Страница 37: ...40TH 20 fl oz minimum 6ETH 20 fl oz minimum 8GTH 20 fl oz minimum 10GTH 20 fl oz minimum C MOTOR BEARING LUBRICATION Follow motor manufacturer s specification 5 5 Impeller Running Clearance The impeller running clearance the distance between the impeller vanes and wear plate is adjusted at the factory prior to shipment to 020 030 To adjust this clearance in the field shut down the pump disconnect ...

Страница 38: ...t 111 NOTICE Maximum allowable bearing carrier 110 pull back movement is 1 8 i e from the condition when impeller is just touching the wearplate you can push back the bearing carrier assembly by 1 8 5 5 Impeller Running Clearance 36 Model Trash Hog II Installation Operation and Maintenance Manual ...

Страница 39: ...g drain plugs 2 Access to suction check valve can be made by removing the check valve cover plate 76 from the top of the suction chamber of pump casing 2 Reaching through the check valve cover plate hole remove the two shoulder screws 118 and check valve keeper plate 53 Now slide off check valve 51 Pull the check valve assembly out of the pump casing through the cover plate hole Inspect the sealin...

Страница 40: ...expand and result in a violent explosion This manual clearly identifies accepted methods for disassembling units These methods must be adhered to Never apply heat to aid in their removal unless explicitly stated in this manual Handling heavy equipment poses a crush hazard Use caution during handling and wear appropriate Personal Protective Equipment PPE such as steel toed shoes gloves etc at all t...

Страница 41: ...ce it Refer to impeller nut torque value before reinstalling impeller nut 9 Remove wear plate 89 by removing locknut 116 through the clean out cover 83 hole Check wear plate for wear Replace if required 10 Remove seal assy 17 from seal well as follows a Remove spring and rotating element of the seal b Pry out the stationary element gently from the seal cavity by using screw driver OR if seal plate...

Страница 42: ...is necessary 2 Make a heavy bead of GASKET ELIMINATOR loctite 518 or equivalent all around the outer edge inner edge and around the mounting holes on the wear plate 89 be fore reinstalling wear plate onto the pump casing 1 for sealing Inspect all gasket o ring sealing surfaces before reassembly 6 6 Preassembly inspections 6 6 1 Replacement guidelines Casing check and replacement WARNING Risk of de...

Страница 43: ...ut 150 175 ft lbs NOTICE Before installing impeller 91 onto the shaft 38 apply coat of loctite grade 242 into the impel ler bore to help prevent corrosion 6 9 Winter Storage 1 Wash off exterior of pump 2 Flush suction line discharge line pump casing and impeller of all solids by pumping clear liquid for a short time 3 Drain pump casing suction line discharge line 4 If complete draining is impossib...

Страница 44: ...10 Once a month rotate the pump shaft during the storage period to avoid freeze up and to lubricate the bearings 6 9 Winter Storage 42 Model Trash Hog II Installation Operation and Maintenance Manual ...

Страница 45: ...ogged suction line or suction strain er if used Clean suction line strainer Stops pumping until motor is stopped and re started Collapsing suction hose lining Replace suction line strainer Slowly stops pumping 1 Clogged impeller volute suction line or check valve 2 Loose clean out cover 83 1 Clean out debris from impel ler eye area suction check valve Follow instructions on other pages 2 Clean sea...

Страница 46: ...r bearings 2 Low discharge head 3 Impeller clogged 4 Worn coupling or misalign ment 5 Units operating at extreme left or right end of perform ance curve capacity too high or too low 1 Replace 2 Throttle discharge 3 Remove clean out cover and clean impeller 4 Replace or realign coupling 5 Adjust for best performance point of operation 7 1 Troubleshooting Guide 44 Model Trash Hog II Installation Ope...

Страница 47: ...Lockwasher 101 Pin Roll 33 Capscrew 102 Capscrew 34 Capscrew 104 Gasket Molded 35 Foot Mounting 105 Gasket Diecut 36 Bearing 106 Ring Retaining 37 Key Impeller 107 Shim Beraing 38 Shaft 108 Ring Retaining 39 Key Coupling 109 Gasket Molded 42 Retainer 110 Carrier Bearing 44 Lockwasher 111 Hexnut Jam 45 Capscrew 112 Capscrew 49 Gasket Diecut 114 Vent Filler 50 Inlet Suction 116 Locknut 51 117 Bearin...

Страница 48: ...ing 8 Gasket Diecut 45 Capscrew 106 Retaining Shim 10 Cover Stuffing Box 49 Gasket Diecut 107 Shim bearing 11 Stud 50 Inlet Suction 108 Ring Retaining 17 Seal Single Mech 51 Valve Check 109 Gasket Molded 24 Sleeve Shaft 60 Bushing 110 Carrier Bearing 27 Pipe Plug 76 Cover Check Valve 111 Hexnut Jam 28 Pipe Plug 77 Gasket Diecut 112 Capscrew 29 Oiler Optional 81 Handknob 114 Vent Filler 30 Vent Fil...

Страница 49: ...g Wing 30 Vent Filter 99 Gasket Molded 31 Housing Bearing 100 Elbow 32 Lockwasher 101 Pin Roll 33 Capscrew 102 Capscrew 34 Capscrew 104 Gasket Molded 35 Foot Mounting 105 Gasket Diecut 36 Bearing 106 Ring Retaining 37 Key Impeller 107 Shim Beraing 38 Shaft 108 Ring Retaining 39 Key Coupling 109 Gasket Molded 42 Retainer 110 Carrier Bearing 44 Lockwasher 111 Hexnut Jam 45 Capscrew 112 Capscrew 49 G...

Страница 50: ...8 3 Trash Hog II Type EL Long Coupled 8 3 Trash Hog II Type EL Long Coupled 48 Model Trash Hog II Installation Operation and Maintenance Manual ...

Страница 51: ...ps 240 Fall Street Seneca Falls NY 13148 USA 2022 ITT Corporation The original instruction is in English All non English instructions are translations of the original instruction Form IOM TrashHogII en US 2022 03 ...

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