Goff 2460 Operation And Maintenance Manual Download Page 90

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If a protective guard has an interlock that interrupts the automatic cycle, it then comes

under the definition of an "Interlocked Barrier Guard", and the operator " ... SHALL INSPECT

THE INTERLOCK AT THE BEGINNING OF EACH SHIFT OF OPERATION AND
IMMEDIATELY REPORT ANY DAMAGE OR MALFUNCTION OF THE DEVICE TO HIS
SUPERVISOR" (See ANSI Z241 .3, para 5.2.1.4)

DANGER!

Do not rely only on protective circuits during service
and repair. Bring the blast machine into Zero

Mechanical State (ZMS

7-12

Summary of Contents for 2460

Page 1: ...0 _ 7 _ _S_e_m_in ol e O K 74 8 18 16_0_7 ___ OPERATIONS AND MAINTENANCE MANUAL liDFF 2460 SPINNER MACHINE 07461 50 7220 SERIAL NUMBER AUGUST2007 DATE SHIPPED Ph 405 382 6900 Fax 405 382 7013 Toll Free 800 654 4633 goff goff inc com www goff inc com ...

Page 2: ...ctrical and mechanical components are U L or equivalent approved Our goal 11 Customer Satisfaction11 Our customer service department is here to help you with any questions you may have about your Goff equipment from replacement parts to trouble shooting Please feel free to contact us at 1 800 654 4633 We look forward to serving you with all your blast cleaning needs liDFF Ph 405 382 6900 Fax 405 3...

Page 3: ... shall not be liable for consequential damages or special damages The foregoing warranty shall not apply if the equipment has been subject to abuse misuse negligence or accident or if the equipment is used with other than Goff parts THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION OF THIS EQUIPMENT CONTAINED IN THE MANUAL OTHER THAN THE FOREGOING WARRANTY USER RESPONSIBILITIES This equi...

Page 4: ...nd maintenance of this machine and for orderingreplacement parts The Goff2460 Heavy Duty Spinner Hanger hasbeen designed to give years ofefficient and trouble free performance with the proper maintenance A careful study ofthe infonnation given will help assure that this equipment is operated in the most efficient manner and maintained properly ...

Page 5: ...SECTION 1 General Information SECTION 2 Blast Wheel Assembly SECTION 3 Cabinet Assembly SECTION 4 Abrasive Recycling System SECTION 5 Electrical System and Operating Procedures SECTION 6 General Maintenance SECTION 7 Safety and Preventive Maintenance ...

Page 6: ...SECTION 1 GENERAL INFORMATION General Description 1 1 Installation Procedures 1 2 ...

Page 7: ... two direct drive blast wheels The blast wheels throw a controlled pattern of abrasive at the rotating parts at a high velocity The used abrasive falls through specially designed drain holes in the bottom ofthe chamber and into the primary abrasive screen below The abrasive is moved by screw conveyor from the cabinet to the elevator where it is picked up and transported to the abrasive separator b...

Page 8: ...ion Loosen all thread take ups and lower elevator belt through the top lid Remove the access cover on the elevator bottom section and adjust the belt splice 4 Adjust the elevator belt to proper tension by adjusting the all threadtake ups The unloaded belt should run generally in the center ofthe elevator casing with minimum movement from side to side Elevator buckets should not strike the sides of...

Page 9: ... operation it may be necessary to add more abrasive to the system The storage hopper should always be full Abrasive separator adjustments can be made while initial abrasive is recycling to the hopper 11 Test the automatic indexing for proper operation The chamber should always rotate in a clockwise direction 12 Before loading parts test to check proper operation ofthe blast wheels 13 Start abrasiv...

Page 10: ... Assembly Side View 2 7 Blast Wheel Assembly Exploded View 2 8 Inspection of the Wearing Parts 2 9 Blast Wheel Housing Liners 2 10 Blades 2 11 Blade Wear Detail 2 11 Checking the Rotating Assembly for Balance Noise 2 12 Blast Wheel Disassembly 2 13 Blast Wheel Assembly 2 15 Abrasive Control Valve 2 18 Replacement Parts List Abrasive Valve 2 19 Abrasive Valve Assembly Detail 2 20 Adjusting and Chec...

Page 11: ...y also result from accidentally or carelessly knocking hardened parts together When working with blast wheel components always wear gloves andsafetyglasses The efficiency ofthis equipment the blast cycle time and the production requirements will all depend largely on the conditions under which the blast wheel is operated and maintained Compliance with the instructions and suggestions given in this...

Page 12: ...37 1 5000129 Description Cage retainer Hub Bare wheel Blast housing cover liner Housing mount Lid Motor pilot flange plate Impeller Centering plate Control cage Shear ring Feed spout seal Feed spout weldment Top liner Long end liner Rear side liner Access Seal 3 O D 1 7 16 d c5 Blade block set CW g 151 Cage adapter Blade set 13 1 2 Roll pin Bushing 1 3 8 Lock washer Special 5 8 Bushing adaptor Thr...

Page 13: ...3 6000857 1 Bushing 1 3 8 24 6000962 1 Lock washer Special 5 8 25 6001204 1 Bushing adaptor 26 6101159 2 Threaded clevis 27 7001520 6 Hex bolt 1 2 13 28 7002707 2 Hex nut 29 7002751 2 Nut extra heavy 3 8 16 30 7002752 2 Nut extra heavy 1 2 13 31 7002806 2 Locknut 32 7003006 6 Flat washer 3 8 33 7003008 16 Flat washer 1 2 34 7003009 6 Flat washer 1 2 35 7003106 8 Lock washer 3 8 36 7003108 22 Lock ...

Page 14: ...F 0158201 001 IS 1so DR J PO I TIO J FOF 01582 1 1 001 1 210 BLAST WHEEL DRAINAGE POSITION DETAIL The GoffC Face blast wheel requires adjustment ofa drainage slot It is very critical that this slot be positioned properly refer to item 7 on the blast wheel assembly drawings in the back of this section 2 4 ...

Page 15: ...M0I099 CW BLAST WHEEL FRONT VIEW Refer to replacement parts list on page 2 2 2 5 ...

Page 16: ...MOI OO 0 I CCW BLAST WHEEL FRONT VIEW Refer to replacement parts list on page 2 3 2 6 ...

Page 17: ...M0581B BLAST WHEEL SIDE VIEW Refer to replacement parts list on page 2 2 2 3 2 7 ...

Page 18: ...M058IC BLAST WHEEL EXPLODED VIEW Refer to replacement parts list on page 2 2 2 3 2 8 ...

Page 19: ...n rotating by hand the blade blocks may be excessively worn and shouldbe replaced 5 Visually inspect the control cage opening Ifthe bevel on the sides ofthe opening is worn to halfofits original width the control cage should be replaced 6 While rotating the blades by hand it is possible to see the leading edge of the impeller fingers Ifthe fingers are grooved or worn to halftheir original size the...

Page 20: ...dbe inspected on a regular basis Ifthe liners are allowedto wear through the housing itself will quickly develop wear holes causing abrasive leakage on and around the machine ALWAYS TURN THE POWER OFF PRIOR TO LINER INSPECTION Lock out and tag out before proceeding The top liner is located in the uppermost section ofthe housing and is held in place by the housing cover The side liners are locatedi...

Page 21: ...reakage Although a set of blades may be wearing evenly and may not be causing any abnormal vibrations they should not be allowed to wear all the way through Holes in the blades will allowabrasive to enter the area inback oftheblades causing wear on internal blastwheelparts This will cause the blastwheelto vibrate as well as disrupt the quality ofblast Ifa new set ofblades will not remain on the bl...

Page 22: ...ofbalance wheel the blades should be inspected first followed by impeller blade blocks and the bare wheel Damage to the internal rotating parts of the blast wheel usually occurs when blades are allowed to be worn through or broken and abrasive enters the area behind the blade To inspect and replace the blades and other parts of the rotating assembly it will be necessary to partially or completelyd...

Page 23: ...ed I thru 8 in aclockwise direction before removal To remove a blade push it toward the center of wheel and rotate bottom free of the block Item 19 then lift it out 8 Inspect all the parts which have been removed to determine whether they are worn or damaged to the extent that replacement is necessary 9 Replace the top liner Item 14 and housing cover Bolt cover in place and run blast wheel assembl...

Page 24: ...the taper lockbushing Ifthe hub does not release tap the face ofthe hub using a bronze drift and tighten the screw again When the hub is loose on the bushing slide the taper lock assembly offthe end ofthe motor shaft 17 Remove the hub and key from the motor shaft 18 Cleanthe motor shaft and allblast wheel components Inspectthe keyway in the motor shaft and the key for wear Check the motor shaft fo...

Page 25: ...em 46 with the key properly aligned with the keyway in the bushing 5 Lightly oil the two set screw threads Start the set screws in the holes which are diametrically opposite each other Position the face ofthe bare wheel 1 4 from the face of the rear side liner 6 Install the front side liner makingsure it is aligned with the rear side liner This alignment is essential for the top liner and end line...

Page 26: ... of this section for correct orientation due to clockwise or counter clockwise rotation When end liners are in place tap lightly with a plastic mallet to insure proper fit against the top liner Tighten the compression cap screws to hold end liners in place 16 Install the two support studs Item 45 into cage retainer Make sure the studs do not extend past the cage retainer into the blast wheel area ...

Page 27: ...est run the wheel no load test no abrasive checking for noise or vibration The unit should run quietly with little or no vibration 21 Always check the blast pattern after installation ofa new set ofblades Informationon blast pattern test and adjustment are in this section 2 17 ...

Page 28: ...uctuations can be interpreted as an indication of bearing trouble drag in some moving parts of the blast wheel motor trouble or electrical supply variances While the machine is in actual operation any fluctuations in the ammeter reading shouldbe investigated Changes could indicate shortage of abrasive stalled elevator clogged screen or foreign objects in the impeller The ammeter serves as a prime ...

Page 29: ...I Insert 4 5000152 1 Lever 5 0003943 1 Shaft 6 5 100103 1 Valve Body 7 6000136 1 Air cylinder 8 5100190 1 Cylinder mount bracket 9 6000142 1 Clevis rod 10 6000936 2 Ring retainer 11 6001165 2 Fitting 12 7008878 2 Screw 10 24 13 7000912 1 Hex bolt 1 4 20 1 4 7003004 2 Flat washer 1 4 REPLACEMENT PARTS LIST IS SUBJECT TO CHANGE WITHOUT NOTICE L 2 19 ...

Page 30: ...f 6 lOFPM and then visually locate the hottest spot Gloves should always be worn during the pattern test The plate after blasting will be very hot and care should be taken when handling The abrasive pattern is delivered in a clockwise and counter clockwise motion covering the top and bottom ofthe plate Never attempt to operate a clockwise blast wheel or a counter clockwise blast wheel in the oppos...

Page 31: ...s set during factory testing prior to shipment but testing is not always done with the same type and size ofabrasive which will be used at the customer s facility Therefore the pattern must always be checked at initial set up under the condition the equipment will be operating 2 22 ...

Page 32: ...M0718 BLAST p ADJUSTMENT ATTERN NOTCH CONTROL CAGE BOLT FEED SPOUT BOLT FEED SPOUT M0719 Ql DO NOT LOOSE J 2 23 DO NOT LOOSEN CONTROL CAGE BOLT FEED SPOUT CLAMP ...

Page 33: ... 36 46 6 36 46 6 36 46 6 36 46 6 36 46 6 36 46 6 36 46 6 36 208 230 380 JO 1800 2850 460 575 3600 i 2 STD END i LIN ERS f 21 3 1 6 8 1 8 25 1 8 2 LONG END LINERS 26 5 8 2 STD 2 EXTENSIONS TOL RANC S ON DIMENSlc IS UNLESS OTHER MSE NOTED AA PL US t lNUS j MAOIINING 010 SlRUCT JRAL OVERALL 1 115 All OTHER 1 32 HOH ACCUMULA11 E P A RT cc T 0 1 5 8 2 0 1_ 0 0 9 t P AR T c c r 0 1 5 8 2 c 0 1 r 0 0 8 P...

Page 34: ... QTY REV FORM DATE BY E D 36 C B A NW ORIGINATION XXXXXXX 1111m l 7 1 1 1 6 STD E L 111TH LINER EXTENSION 1 7 8 STD END LINER 1 3 19 1 8 t 21 3 1 6 8 1 8 23 1 2 STD END _______ LIN ERS 25 1 8 2 LONG END LINERS 26 5 8 2 STD 2 EXTENSIONS 10l RANCES ON DIMENSlc 1S U NlESS 01HERWl5 NOTED ARE PWS OR MINUS MACHINING 010 STRUCTURAL CMRALL 1 115 AU On R 1 32 NON ACOJMULATI fE PART 01 5821 1 009 PART 01 58...

Page 35: ...rts List Cabinet Assembly 3 1 Cabinet Front View Detail 3 3 Cabinet Side View Detail 3 4 Cabinet Plan View Detail 3 5 Span Assen1bly Detail 3 6 Spinner Thrust Bearing Detail 3 7 Span Detail 3 8 Spinner Chamber Drive Assembly Exploded View 3 9 ...

Page 36: ... 4 Seal 18 6001333 8 Hose 3 dia 19 0110895 4 Flange adapter 20 6001869 1 Bushing 21 6001495 1 Sprocket HTD 22 6001496 1 Sprocket HTD 23 6001497 1 Belt HTD 24 6001756 1 Bushing 2 25 6001868 1 Reducer 100 1 26 0109196 2 Seal back 28 0014075 2 Liner side 29 0015436 001 2 Drive shaft 30 6100554 1 Belt 5 8 Urethane x 72 lg 31 0109058 001 2 Seal ring heat treat 32 0113084 2 Chamber liner weldment 33 011...

Page 37: ...on 45 6001075 1 Oil seal 46 6000612 1 Bearing 4 bolt 2 47 6001285 2 Bushing TLB 1 7 16 48 6001366 1 Reducer 40 1 49 6101391 2 Set collar 1 7 16 dia 50 8000521 1 Motor Hp 51 0113290 2 Top liner weldment REPLACEMENT PARTS LIST IS SUBJECT TO CHANGE WITHOUT NOTICE 3 2 ...

Page 38: ...M01159A 0 0 I 0 FRONT VIEW DETAIL Refer to replacement part list on page 3 1 3 3 ...

Page 39: ...MO 159B L SIDE VIEW DETAIL Refer to replacement part list on page 3 1 3 4 ...

Page 40: ...MOl 159C I I PLAN VIEW DETAIL 0 I I I I I I I L _ _ _ L_ _ _ _ J Refer to replacement pa1t list on page 3 1 3 5 ...

Page 41: ...MOl 159D I I G SPAN SPINNER DETAIL Refer to replacement part list on page 3 1 3 6 ...

Page 42: ...MOl 159E l I CHMHBER E THRUST BEARING DETAIL Refer to replacement part list on page 3 1 3 7 ...

Page 43: ...M01 159F SPAN DETAIL l Refer to replacement part list on page 3 1 3 8 ...

Page 44: ... G M01 159G CHAMBER DRIVE ASSEMBLY DETAIL Refer to replacement part list on page 3 1 3 9 ...

Page 45: ...nt View 4 4 Elevator Separator Assembly 4 5 Adjustment of the Abrasive Separator 4 6 Abrasive Separator and Air Flow Detail 4 6 Replacement Parts List Elevator Bottom Section 4 8 Replacement Parts List Abrasive Valve Assembly 4 1 1 Abrasive Storage Hopper 4 12 Auto Abrasive Adder Hopper 4 12 Elevator Belt Maintenance 4 13 Abrasive 4 14 Steel Abrasive Sizes and General Applications 4 15 ...

Page 46: ... 10 10 6001799 1 1 6003642 FES ASSEMBLY 0154720 Qty Description 1 Elevator bottom assembly 1 Elevator separator assembly 1 Elevator top assembly 1 Adder hopper 14 Hex nut 1 2 13 14 Lock washer 1 2 1 Separator belt 1 Hopper belt 2 Rubber neoprene 1 16 x 3 x 36 4 Clamp 1 Duct REPLACEMENT PARTS LIST IS SUBJECT TO CHANGE WITHOUT NOTICE 4 1 l ...

Page 47: ...3 6001824 4 6000606 5 01 54790 6 0002489 7 0011288 001 8 7002712 9 7003012 Qty 1 1 1 I 2 4 2 8 8 Description Elevator head section shaft Weldment Pulley Bushing 1 7 16 w keyway Belt take up Clamp plate All thread 3 4 10 UNC x 10 1 4 Hex nut 10 Flat washer 3 4 REPLACEMENT PARTS LIST IS SUBJECT TO CHANGE WITHOUT NOTICE 4 2 ...

Page 48: ...ring 1 7 16 21 7005924 8 Hex bolt 1 2 13 x 2 1 2 22 7003008 8 Flat washer 1 2 23 0102833 1 Screen weldment 24 0002936 1 Rotary screen curtain 25 0002509 1 Retainer curtain 26 7003 106 12 Lock washer 3 8 27 7002707 4 Hex nut 3 8 16 28 6001295 4 Ball spring plunger 29 7002807 8 Lock nut 1 2 13 30 0102905 1 Bearing hanger weldment 3 1 0054772 1 Reducer mount 32 6001381 1 Reducer 50 1 33 8001032 1 Mot...

Page 49: ...l MO 162a ffi 1 L L 1 0 0 0 0 0 2 20 FES ELEVATOR SEPARATOR ASSEMBLY Refer to replacement parts list on page 4 3 4 4 ...

Page 50: ... l _ 1 0 M01 162B 0 2 20 FES ELEVATOR SEPARATOR ASSEMBLY Refer to replacement parts list on page 4 3 4 5 I I L_ C 1 i f LJ w ...

Page 51: ...lls down in the upper portion ofthe separator against an adjustable spreader gate Item B This gate should be adjusted up or down to cause the abrasive to spread out the entire 20 width of the separator This adjustment should be made with the swinging gate removed Item C If the area around the rotary screen should fill with abrasive the spreader gate should be raised slightly to permit free abrasiv...

Page 52: ...ust be set in combination in order to function properly Size and type ofabrasive used will determine correct setting Adjusting the refuse gate toward the falling curtain ofabrasive will adjust the size and quantity ofparticle removed from the abrasive Moving the refuse gate away decreases the size and quantity ofparticle removed Adjust the air baffle and refuse gate until as much sand and unusable...

Page 53: ...eal 8 6001824 2 Pulley 9 6001843 2 Bushing 1 7 16 Bore 10 0003862 005 2 Keystock 1 2 x 1 2 x 3 1 2 1 1 0003862 006 l Keystock 1 2 x 1 2 x 8 12 7006124 4 Hex bolt 5 8 1 1 x 2 1 2 13 700271 1 4 Hex nut 5 8 1 1 14 700301 1 8 Flat washer 5 8 x 1 3 4 15 7003109 4 Lock washer 5 8 16 7003008 8 Flat washer 1 2 17 7003108 8 Lock washer 1 2 1 8 7002709 8 Hex nut 1 2 13 19 0154780 1 Elevator drive assembly R...

Page 54: ...M0I I 63A 0 0 0 0 0 16 17 1 8 ELEVATOR BOTTOM ASSEMBLY Refer to replacement parts list on page 4 9 4 9 ...

Page 55: ...M01163B 0 9 ELEVATOR BOTTOM ASSEMBLY Refer to replacement parts list on page 4 9 4 10 4 ...

Page 56: ... Valve body insert 4 5000152 1 Lever 5 0003943 1 Shaft 6 5100103 1 Valve body 7 6000221 1 Air cylinder 8 5100190 1 Cylinder mount bracket 9 6000142 1 Clevis rod 10 6000936 2 Ring retainer 11 6001171 2 Fitting 12 7008878 2 Screw 10 24 13 7000914 1 Hex bolt 1 4 20 x 1 1 2 14 003004 2 Flat washer 1 4 REPLACEMENT PARTS LIST IS SUBJECT TO CHANGE WITHOUT NOTICE 4 1 1 ...

Page 57: ...ate accumulation ofabrasive in the hopper will not only ensure a steady flow to the blast wheels but will also prevent wear on the hopper by keeping the sides of the hopper protected against the abrading action of cascading abrasive particles The correct abrasive level in the hopper should be maintained by periodic additions ofnew abrasive to compensate for abrasive breakdown AUTO ABRASIVE ADDER H...

Page 58: ...rjammed for several reasons 1 Ifthe blasting operation is started without the elevator running 2 Ifthe elevator belt slips because of improper tension adjustment 3 If abrasive is added without the elevator system operating 4 If abrasive is added to the machine at a rate faster than the elevator is capable of handling Ifa stalled elevator condition exists the abrasive feed to the blast wheels and a...

Page 59: ...r the first filling ofthe blastcleaning system a simulated operating mix must be composed In order to do so the following grain sizes should be used approx 30 nominal size and 70 ofthe nexttwo sizes smaller than the nominal size Thereafter the refill carried out at regular intervals consists only ofthe nominal grain size The quality of the abrasive should be checked at regular intervals as poor ab...

Page 60: ...matte or satin finish nonferrous work and machined parts Removal of very light scale Removal of light rust S 70 G 80 007 Fine Medium etch S 1 10 G 50 01 smooth shot Blasting relatively small S 170 G 40 017 finish feITous and nonferrous castings Removal oflight scale from forgings and heat treated parts Blasting of machined parts Removal of mill scale rust and other deposits S 230 023 Medium Sharp ...

Page 61: ...SECTION 5 ELECTRICAL SYSTEM AND OPERATING PROCEDURES Button Switch Descriptions 5 1 Operating Procedures 5 2 Replacement Parts List 5 3 ...

Page 62: ...last wheel 2 7 BLAST WHEEL STOP Stops both blast wheels 8 ABRASIVE ON OFF To blastparts set to ABRASIVE ON To indexparts through the blast chamber without blastingthem set to ABRASIVE OFF 9 CHAMBERINDEX Starts rotation ofthe chamber until all chambers are advanced forward one position The previous blast sequence must have finished 10 CYCLE OVERRIDE Starts rotation of the chambers forward for as lo...

Page 63: ... 7 Set blast cycle timer to desired blast time 8 Press Chamber Index button to start the blast cycle 9 Parts may be unloaded and loaded to the next chamber when it comes to the loading station The chamber will rotate short distances as the blast cycle advances through the blast positions 10 After the blast cycle timer times out at the last blasting position the chamber will advance a short distanc...

Page 64: ...9 8000496 3 Heater W 31 8001303 3 Heater W 40 8000484 6 Heater W 53 8006098 1 Hour meter 8002000 002 1 Mac valve 8001211 2 Muffler 8001344 4 Overload relay 3 Ph 8001354 2 Pilot light 8001352 1 Pilot light lens Amber 8001364 1 Pilot light lens Blue 8000729 2 Proximity switch 8003150 1 Proximity switch 8003586 1 Proximity well mount 8001577 4 Pushbutton Flush green 1NO 8000112 1 Pushbutton Flush yel...

Page 65: ...1 8001287 2 Starter size 2 8004126 1 Tape switch 8005836 1 Terminal Fused 8005837 1 Terminal Fused end block 8001959 3 5 Terminal channel 8001960 8 Terminal end anchor 8001958 3 Terminal end barrier 8001961 68 Terminal section 8000329 1 Timer 8003467 1 Timer 8001715 1 Timer 8001669 1 Timer OFF 10 sec 8000758 3 Timer strap 8002027 1 Transformer 250 KVA REPLACEMENT PARTS LIST IS SUBJECT TO CHANGE WI...

Page 66: ...TENANCE Electric Motors 6 1 Gear Reducers 6 3 Screen Systems 6 3 Chambers 6 5 Roller Chain Drives 6 6 Air Cylinders 6 8 Pulleys Sheaves and HTD Sprockets 6 8 Belt Drives for Spinner Hangers and Conveyors 6 9 Rollers 6 1 1 l ...

Page 67: ...tor bearing failure is over greasing rather than under greasing Electric motors are basically dependable and require little maintenance Too much attention may be worse than none Motor bearings are packed with grease by the manufacturer and should operate at least one year without needing lubrication however should re lubrication become necessary the grease most commonly used by motor manufacturers...

Page 68: ... was intended to drive and become overloaded resulting in premature failure Operating voltages that are too high or too low can cause problems for motors of all kinds but operating a three phase motor on an unbalanced or open delta distribution system can also cause serious overheating that will shorten motor life dramatically A motor operating with a 3 5 voltage unbalance for example will experie...

Page 69: ...a 3 650 Cylinder Oil 196L Cylinder Oil Senate 186 Cylesso TK 190 Valvata J82 Super Cylinder 600W Gear Comp 240 Calumet SH Cylinder Oil Sohicyl 650 Keep shafts and vent plug clean to prevent foreign particles from entering the seals or the gear case Inspect periodically for oil leaks Check couplings set screws and reducer mounting bolts for tightness loose fasteners can cause alignment problems and...

Page 70: ...y vary from machine to machine Some models have a stationary screen above the separator other models have a combination rotary screen above the separator and a stationary screen below the separator while other machines just have a stationary screen below the separator ST TIONMRY SCREEN ROTr8Y SCREEN M02035 NOTE The stationary screen is made ofperfplate or wire mesh The rotary screen cage is made o...

Page 71: ...perator to unload and load one section of the drum while the other section s with parts are being blasted with abrasive While being blasted parts are spun in a circle in each section while resting on spinning hanger fixtures Table Blast Machines have only one chamber This chamber has a table that spins around while the parts are being blasted with abrasive Most tables are driven by an electric mot...

Page 72: ... If liners are allowed to wear through damage could occur to internal chamber components Note All cast alloy liners and some plate liners are fastened to the wall and or ceiling of the chamber with cast nuts Barrel head liners are fastened with counter sunk bolts to the barrel head Abrasive resistant rubber is held in place with bar retainers and nuts Some abrasive resistant rubber is held in plac...

Page 73: ...s This finally results in failure of the chain to mesh with the sprocket teeth Premature chain failure may be caused by excessive wear due to lack of lubrication This allows entrance of abrasive matter into the chain joints causing corrosion Chains must be properly lubricated for the existing conditions of load and speed Chain drives should be protected against dirt and moisture and the oil supply...

Page 74: ...n Check the air line for leaks and repair or replace if necessary PULLEYS SHEAVES and HOT SPROCKETS Goffmachines will have either a v belt or flat belt drive elevator belt Check your machine to see which belt drive you have before reading the rest ofthis section I BELT DRI 1 E SHU VE BELT M02034 FLHT BELT DRIVE 4 uLL v FlnT BELT Pulleys sheaves are a slow wear item so only periodic inspection will...

Page 75: ... Keep sheaves HTD sprockets and belt free from dirt oil and grease Rust nicks and burrs should be removed from the sheave HTD sprocket grooves and worn sheaves HTD sprockets should be replaced The locking devices on the sheaves HTD sprockets should be checked to assure and maintain proper tightness on the shaft Vibration or improper alignment could cause set screws taperlock bushings or locking ca...

Page 76: ...breakdown may occur To properly install or remove v belts release pressure on the air cylinder or release tension on the drive chain This should allow the belt to be easily removed Always use a full set ofv belts The efficiency and durability of a multiple v belt drive can only be assured if the drive is operated with a full set of belts as originally designed Operating a drive with less than a fu...

Page 77: ...ly periodic inspection will be necessary When a roller s shell becomes worn down to 20 of its shell thickness the roller must be replaced Ifthe roller will not freely roll inspect and replace ifnecessary M02037 p __ ______ S _ H _ E LL 9 p i 6 11 ...

Page 78: ...or Welding and Cutting Work on Descaling Machines and Blast Cleaning Systems 7 14 Safety Tips 7 15 Lock out Tag out 7 16 Trouble Shooting Cabinet and Blast Wheel 7 21 Abrasive Recycling System 7 23 Electrical System 7 25 Dust Collection System 7 25 Hydraulic System 7 26 Air Blast Machines 7 26 CRD Mechanics System 7 27 WM Mechanics System 7 27 ...

Page 79: ...V Blast Wheel Liners V Blast Wheel Blades V Blast Wheel Control Cage V Blast Wheel Impeller V Blast Pattern V Fans Motors V Screens Hopper V Screens Cabinet V Gear Drives Reducers Chain Belts V Check Empty Separator Refuse V Elevator Sheaves Belts Bearings V Electrical Components V Dust Collector Check Empty V Hopper Refuse Drum Table Liners Alloy or Neoprene V Cabinet Liners Cast Alloy or Neo V M...

Page 80: ...ns Daily A hole in the abrasive screen could allow large materials to re circulate and reach the blast wheel causing severe damage 6 Roller Chain and Sprockets Inspect Monthly Maintain light film of oil Replace when stretched beyond take up Replace sprockets when teeth are worn 7 Separator Air Flow Daily This is done by inspecting the abrasive If it is dirty or dusty increase the air Dirt and dust...

Page 81: ...n the bearing and result in premature bearing failure 13 Hydraulics Weekly Inspect filter and replace when necessary Check and replace fluid annually or as conditions warrant Keep area as clean as possible 14 Pneumatic Components Monthly Air cylinders and lines should be checked for proper operation and wear and leaks 15 Cabinet and Barrel Head Liner Inspect Daily Replace when worn to halforiginal...

Page 82: ...the belt will swerve to the right If the belt tracking is perfect when the belt is unloaded but the belt swerves to the left when loaded seen in the direction of the belt travel the support rollers have to be adjusted as follows adjust the support rollers on the left in the direction ofthe belt travel Adjust the suppo1i rollers on the right in the opposite direction of the belt travel Ifthe belt s...

Page 83: ...k the wipers for wear The wipers are equipped with adjustable rubber lips which must have full contact with the belt Do not allow any abrasive to drop on the floor After every 500 operating hours Lubricate the bearings on the drive drum and on the tensioning drum Lubricate the tensioning spindles with dry lubricant After every 10 000 operatinghours Clean the bearings and change lubricant in the ge...

Page 84: ...st have carefully read this Safety Section supplied by the plant management the supervisors ofthe blast cleaning system the operating maintenance and repair personnel Make sure this manual is kept in a place close to the blast cleaning system always available a complete and in good condition as this manual is an essential part ofthe protection system No responsibility can be assumed for damage cau...

Page 85: ...onents ofthe protection system are installed and operate properly CAUTION Always keep afireextinguisheron handwhen perfonning cutting grinding orwelding work Always keep the dust collector switched offwhile cutting grinding or welding within the blast cleaning system WARNING Modifications and constructional changes on the blast cleaning system without consulting us can cause impairment ofthe opera...

Page 86: ...n which ifnot avoided will result in death or serious injury WARNING Indicates a potentially hazardous situation which ifnot avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which ifnot avoided may result in minor or moderate injury It may also be used to alert against unsafe practices SAFETY INSTRUCTIONS Instructions on proper safety procedures o...

Page 87: ...ized modifications to the blast machine will impair the function and or safety and affect machine ife INSPECT MACHINE Inspect your machine carefully each day before you start it See Pre Start Inspection section in this manual OPERATE MACHINE SAFELY Persons not trained to operate or repair the blast machine should not be in the area of operation and machine movement DANGER Only one person must use ...

Page 88: ...high pressure Use a piece ofcardboard to search for leaks If ANY fluid is injected into the skin see a doctor immediately SERVICE MACHINE SAFELY Never operate the machine ifan unsafe condition exists Be sure you understand the service procedure before working on the machine Put blast machine in Zero Mechanical State ZMS 0 before doing maintenance See Putting Blast Machine in ZMS in this manual DAN...

Page 89: ...y may result DANGER Do not rely only on protective circuits during service and repair Put blast machine into Zero Mechanical States ZMS During operation maintenance access panels guard gates and guard fences must be in place and securely closed Put machine in ZMS before doing maintenance If guards are missing contact Disa Goff Inc PROTECTIVE CIRCUITS The maintenance access door located on the rear...

Page 90: ...Guard and the operator SHALL INSPECT THE INTERLOCK AT THE BEGINNING OF EACH SHIFT OF OPERATION AND IMMEDIATELY REPORT ANY DAMAGE OR MALFUNCTION OF THE DEVICE TO HIS SUPERVISOR See ANSI Z241 3 para 5 2 1 4 DANGER Do not rely only on protective circuits during service and repair Bring the blast machine into Zero Mechanical State ZMS 7 12 ...

Page 91: ...in air supply valve is located on the back of the cabinet Pull valve handle to shut air off Lock valve in off closed position when it is necessary to enter machine for maintenance or troubleshooting SLACKLINE MONITOR Monitors skip bucket hoist If cable is slack or breaks drum will not operate FLASHING LAMP Amber light on top of control cabinet lights when machine power is turned on when emergency ...

Page 92: ...int out the hazards offire and explosion posed by mixtures of dust and air generated inside the blast cleaning cabin the filters and the piping and tubing system Before starting any welding work it is absolutely necessary to thoroughly dedust the blast cleaning system Always keep the cabinet doors open and the dust collector switched off during ongoing welding work Also proceed with great caution ...

Page 93: ...re attempting any operation or repairs to this equipment Use a scoop or scraper when removing abrasive from ajammed elevator DO NOT USE YOUR HANDS Ifa jammed elevator belt is stretched tight the tension in the belt will release when excess abrasive is removed causing the pulley to rotate rapidly in the reverse direction Serious personal injury could result if a hand or forearm is in the path of th...

Page 94: ...ful when working on the blast cleaning system While the blast cleaning system is in lock out tag out personal safety tags and padlocks must be attached to the following locations on the blast cleaning system personal safety tags stating that work on the blast cleaning system is in progress on the three way tap ofthe pneumatic and hydraulic systems and the electric main switch personal safety tags ...

Page 95: ...nd secure the main switch with a personal padlock to prevent actuation by unauthorized persons Close the shut offtap on the service unit ofthe pneumatic system and secure it with a personal padlock By closing the shut off tap the pneumatic system is vented simultaneously Disconnect pneumatic lines at quick release connections Place personal warning tags on the control cabinet and on the shut off t...

Page 96: ...ltaneously Disconnect pneumatic lines at the quick release connections Place personal warning tags on the control cabinet and on the shut off tap of the pneumatic system stating that maintenance work is in progress Close the shut off tap on the service unit ofthe hydraulic system and secure it with a personal padlock Discc f irnect hydraulic lines at quick release connections Place personal warnin...

Page 97: ...stem the pressure gauge for compressed fluid must indicate 0 bar 0 psi 4 Cabinet door the cabinet door must be open It must be possible to move it by hand 5 Bucket elevator the buckets ofthe bucket elevator must be empty WARNING Even when the blast cleaning system is 111 lock out tag out working on the blast cleaning system still involves certain risks For example it is dangerous to remove heavy e...

Page 98: ...padlock from the main switch ofthe electric system 5 Turn the main switch ofthe electric system to on 6 Remove the safety tag and the padlock from the shut offtap ofthe pneumatic system 7 Reconnect the pneumatic lines Open the shut offtap ofthe pneumatic system 8 Remove the safety tag and the padlock from the shut offtap ofthe hydraulic system 9 Reconnect the hydraulic lines Open the shut offtap o...

Page 99: ... replacement EXCESSIVE NOISE I Improper clearance 1 Check alignment and mounting of between the rotating parts rotating parts Patis should not be allowed to knock against each other during rotation 2 Abrasive size 2 Be sure to use the abrasive mixture that best meets your needs provides good blast coverage quieter operation and more efficient cleaning or shot peening 3 Loose bolts or set screws 3 ...

Page 100: ... blast wheel rotation for proper operation g Make sure wheel is not overloaded with more abrasive than it can handle Check and adjust the abrasive valve accordingly h Check screens for any accumulation ofobjects or debris that could disrupt the cycle of abrasive flow Conduct an accurate blast pattern test Check the hot spot location and adjust control cage accordingly The hot spot should be direct...

Page 101: ... STALLED 1 Clogged screens 1 Clean screens regularly When screens ELEVATOR become clogged abrasive backs up into the elevator causing a jammed condition Inspect and replace screens when worn 2 Worn elevator buckets 2 Ifbuckets are worn they will no longer carry their pre determined load Replace buckets when necessary If belts show considerable wear replace complete assembly 3 Storage hopper overfl...

Page 102: ...y ELEVATOR BELT I Loose belt I Check belt alignment and tension SLIPPAGE Tighten ifnecessary 2 Worn sheaves or pulleys 2 Inspect and replace sheaves when worn ELEVATOR I Elevator is overloaded by I Make abrasive additions slowly Be MOTOR too great an abrasive load sure elevator is running before adding MALFUNCTION causing motor to overload abrasive or starting blast operation Do not load equipment...

Page 103: ...ced DUST COLLECTION SYSTEM 1 Binding 1 Ifexcessive dust or dirt becomes trapped in the cartridge fibers and the air pulse system is unable to dislodge it cartridge should be removed and 2 Caking a formation of cleaned carefully mud on the dirty side of 2 a Check outside vents and piping for the bags The mud later moisture Ifmoisture is present dries into a hard cake that place a protective coverin...

Page 104: ...t ofthe cycling abrasive Check refuse gate and air baffle adjustment HYDRAULIC SYSTEM 1 Improper rotation 1 Reverse rotation 2 Insufficient oil 2 Top up to level 3 Reliefsetting too low 3 Re set 4 Suction blocked 4 Check and clean suction strainer 5 Pump faulty 5 Repair or replace 6 Drive sheared 6 Check and repair 7 Pipe failure 7 Check pressure pipes for leaks and repair if necessary 8 Flow cont...

Page 105: ...tion above zero Use smaller parts Contact Gofffor possible larger machine 3 Lower the feed rate ofparts into drum 4 a Review section six and make sure everything is in its proper position b Check the hydraulic system Make sure all hoses valves and fittings are not leaking Make sure the torque hub torque drive and hydraulic pump are functioning properly and replace any components ifneeded c Make su...

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Goff 2460, Operation And Maintenance Manual

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