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Goff 2460 Operation And Maintenance Manual

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Goff, Inc.
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B
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OPERATIONS
AND
MAINTENANCE MANUAL
2460 SPINNER
MACHINE
07461-50-7220
SERIAL NUMBER
AUGUST2007
DATE SHIPPED
(liDFF:]
Ph: 405-382-6900 * Fax: 405-382-7013 * Toll Free: 800-654-4633
goff @ goff-inc.com * www.goff-inc.com

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Summary of Contents for Goff 2460

  • Page 1 - 7 4 - 8 - 1 8- - - 1 6 _ 0_ 7 ___ � OPERATIONS MAINTENANCE MANUAL 2460 SPINNER MACHINE 07461-50-7220 SERIAL NUMBER AUGUST2007 DATE SHIPPED (liDFF:] Ph: 405-382-6900 * Fax: 405-382-7013 * Toll Free: 800-654-4633 goff @ goff-inc.com * www.goff-inc.com...
  • Page 2 PARTS AND REPAIRS Congratulations, you have just purchased the finest blast cleaning equipment available. Goff equipment is designed to meet all national electrical and mechanical manufacturer codes. All electrical and mechanical components are U.L. or equivalent approved. Our goal -...
  • Page 3 Goff. Goff s sole obligation under this warranty is limited to making replacements at its factory location for equipment or parts which are returned to it with transportation charges prepaid and which, upon Goffs examination, have been found to be so defective.
  • Page 5 TABLE OF CONTENTS 2460 HEAVY DUTY SPINNER HANGER 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 GENERAL DESCRIPTION The Goff 2460 heavy duty spinner hanger cabinet contains a structurally reinforced dual blast chamber fabricated from 3" steel plate. The chamber is revolved at a speed of 3 rpm by an electric motor and gear reducer activating a low speed-high torque "HTD" type drive assembly. Adjustable stops on the chamber top working in conjunction with automatic electrical switching provides variable indexing.
  • Page 9 Set the blast pattern. (Refer to Adjusting and Checking the Blast Pattern in Section 2.) The 2460 heavy duty spinner hanger has been properly adjusted and tested prior to shipping. However all chains, belts and oil levels should be inspected prior to initial operation.

  • Page 10: Table Of Contents

    SECTION 2 - BLAST WHEEL ASSEMBLY General Description ......................2-1 Replacement Parts List - CW Blast Wheel Assembly ............. 2-2 Replacement Parts List - CW Blast Wheel Assembly ............. 2-3 Blast Wheel Drainage Position Detail ................2-4 CW Blast Wheel Assembly - Front View ................ 2-5 CCW Blast Wheel Assembly - Front View ..............

  • Page 11: General Description

    GENERAL DESCRIPTION The blast wheel assembly is the most vital part of any airless blast cleaning system, thus the operating efficiency depends entirely upon the proper inspection, assembly, and adjustment of the blast wheel components. Due to the abrasive nature of the material handled by the blast wheel, there will be constant wear on internal parts, making periodic inspection and replacement essential.
  • Page 12 CW BLAST WHEEL ASSEMBLY (0158201-001) Item Part Number Number Description 0143669 Cage retainer 0044560 0044559 Bare wheel 0002046 Blast housing cover liner 0143491 Housing mount 0143499 0043492 Motor pilot flange plate 5002103 Impeller 5000137 Centering plate 5000138 Control cage 5000294 Shear ring 5000302 Feed spout seal...
  • Page 13 CCW BLAST WHEEL ASSEMBLY (0158211-001) Item Part Number Number Q ty Description 0143669 Cage retainer 0044560 0044559 Bare wheel 0002046 Blast housing cover liner 0143491 Housing mount 0143499 0043492 Motor pilot flange plate 5002103 Impeller 5000137 Centering plate 5000138 Control cage 5000294 Shear ring 5000302...

  • Page 14: Blast Wheel Drainage Position Detail

    BLAST WHEEL DRAINAGE POSITION DETAIL The Goff C-Face blast wheel requires adjustment of a 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...
  • Page 15 M0I099 CW BLAST WHEEL FRONT VIEW (Refer to replacement parts list on page 2-2)

  • Page 16: Ccw Blast Wheel Assembly - Front View

    MOI!OO CCW BLAST WHEEL FRONT VIEW (Refer to replacement parts list on page 2-3) 2- 6...

  • Page 17: Blast Wheel Assembly - Side View

    M058 1B BLAST WHEEL SIDE VIEW (Refer to replacement parts list on page 2-2 & 2-3)

  • Page 18: Blast Wheel Assembly - Exploded View

    ® M058IC BLAST WHEEL EXPLODED VIEW (Refer to replacement parts list on page 2-2 & 2-3)

  • Page 20: Blast Wheel Housing Liners

    BLAST WHEEL HOUSING LINERS The blast housing liners are identified as follows: top liner, end liners and side liners. These liners are made of an extremely hard cast alloy. The blast wheel liners are positioned around the blast wheel to protect the blast wheel housing. Since these liners are in the path of abrasive, wear is to be expected.

  • Page 21: Blades

    BLADES The blades used i n Goff airless blast wheel have been weighed and matched at the factory to insure minimum vibration of the blast wheel assembly. The blades should always be replaced in matched sets. Partial replacement will result in excessive vibration.

  • Page 22: Checking The Rotating Assembly For Balance & Noise

    CHECKING THE ROTATING ASSEMBLY FOR BALANCE AND NOISE The blast wheel assembly should always run smooth with very little vibration or noise. Excessive vibration of the blast wheel or unusual noise during operation should be investigated immediately. Vibration is an indication of an "out of balance" wheel. An "out of balance" blast wheel is the result of worn or broken blades, blade blocks, impeller, and bare wheel or damaged internal parts.

  • Page 23: Blast Wheel Assembly

    C-FACE BLAST WHEEL MAINTENANCE WHEEL DISASSEMBLY Ensure power is disconnected following OSHA approved "LOCK-OUT TAG-OUT" procedure. Remove the blast housing cover (Item 6) (refer to ill u strations on page 2-4 and 2-5) by loosening the nuts (Item 30) on each end of the cover, swing the fasteners (Item 26) clear and remove the lid.
  • Page 24 This will allow access to the back side to remove the sixteen socket cap screws (Items 37 & 39) holding the blade blocks (Item 19). Hold one of the blade blocks (Item 19) from inside the housing and remove the socket head screw attaching it to the bare wheel.
  • Page 25 WHEEL ASSEMBLY The Goff C-Face blast wheel requires adjustment of a drainage slot. It is critical that this slot be positioned properly. (Refer to item #7 on the blast wheel assembly drawing showing correct rotation and drain position in the back of this manual) Replace the key in the motor shaft keyway.
  • Page 26 the blast wheel rotation with a wooden block and tighten the screw (Item 40) to 60 ft-lbs of torque. 1 2. The control cage (Item 10) can now be adjusted and bolted in place. The control cage is held in place by two 3/8-16 NC x l " hex head screws (Item 43) with flat and lock washers (Items 32 &...
  • Page 27 positioning of the blades, cage and impeller are correct. Following the jog test, run the wheel "no load" test (no abrasive) checking for noise or vibration. The unit should run quietly with little or no vibration. Always check the blast pattern after installation of a new set of blades. (Information on blast pattern test and adjustment are in this section) 2-17...

  • Page 28: Abrasive Control Valve

    ABRASIVE CONTROL VAL VE The Goff airless blast wheel assembly is equipped with a totally enclosed abrasive control valve. Correct adjustment of the control valve is essential for maximum cleaning efficiency and maximum blast motor life. The abrasive flow adj ustment is determined by the blast wheel motor. (To determine the full load rating of the motor, check the motor manufacturer's nameplate.) To obtain maximum blast...
  • Page 29 ABRASIVE VAL VE (0105763) Item Part Number Number Q ty Description 7002832 Hex Nut UNC 1/4-20 5002058-001 Butterfly disc - Heat treated 5000121 Insert 5000152 Lever 0003943 Shaft 5 100103 Valve Body 6000136 Air cylinder 5 1 00190 Cylinder mount bracket 6000142 Clevis rod 6000936...

  • Page 30: Adjusting And Checking The Blast Pattern

    Goff recommends, as a good preventive maintenance measure, that the blast pattern be tested on regular basis. Only the blast wheel and abrasive recycling system should be operating during a pattern test.
  • Page 31 adjustment will usually be less than l " from this point. The blast pattern is always set during factory testing prior to shipment, but testing is not always done with the same type and size of abrasive 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.

  • Page 32: Control Cage Diagram

    M0718 D O NOT LOOSEN BLAST p A TTERN ADJUSTMENT NOTCH CONTROL CAGE BOLT FEED SPOUT BOLT CONTROL CAGE BOLT � FEED SPOUT FEED SP OUT CLAMP DO NOT LO O S E :'-J M071 9 2-23...
  • Page 33 FORM # DATE FORM # DATE FORM # FORM # FORM # FORM # FORM # FORM # DATE DISA GOFF INC. TITLIE W. ASSEM STD. HSG. "c" MNT. 0GB 10H.P. SCALE SHEET FTSMAN PPROVED B Y: DWG NO CARE2596...
  • Page 34 01 5 8 2 1 1 - 003 PART 01 5821 1 - 002 PART 01 5 8 21 1 - 001 PART 01 5821 1 1HIS MAWING " ™' DESGN SHO'ON THEREIN IS THE PROPERTY DF GOFF - · - -,-:; :-:: ,...
  • Page 35 SECTION 3 - CABINET ASSEMBLY Replacement Parts 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 .....................
  • Page 36 CABINET ASSEMBLY (0158382) Item Part Number Number Description 6000729 B ushing, - Idler Belt assembly - Elevator/Hopper 0 154789 0154788 Belt assembly - Elevator/Separator 0109714 Seal, front right 0105763 Abrasive valve assembly 0 158201-001 Blast wheel assembly CW 0 158211-001 Blast wheel assembly CCW Cast liner 5001000...
  • Page 37 CABINET ASSEMBLY (0 1 58382) Item Part Number Number Q ty Description 6001075 Oil seal 60006 1 2 Bearing 4 bolt 2" 6001285 Bushing, TLB 1-7/16" 6001366 Reducer, 40: 1 6 1 0 1 39 1 Set collar 1 -7/16" dia. 8000521 Motor, ½...
  • Page 38 M011 59A FRONT VIEW DETAIL (Refer to replacement part list on page 3 - 1 )
  • Page 39 MO! 159B SIDE VIEW DETAIL (Refer to replacement part list on page 3-1)
  • Page 40 L _ _ _ L _ _ _ _ .J MOl 159C PLAN VIEW DETAIL (Refer to replacement pa1t list on page 3-1)
  • Page 41 MOl 159D SP AN/SPINNER DETAIL (Refer to replacement part list on page 3- 1 )
  • Page 42 �= C H M H BER - - - ---�@ E , : ' =-=-=-=-�==:, · ;-- , MOl 159E THRUST BEARING DETAIL (Refer to replacement part list on page 3- 1 )
  • Page 43 M01 159F SPAN DETAIL (Refer to replacement part list on page 3-1)
  • Page 44 M0 1 159G CHAMBER DRIVE ASSEMBLY DETAIL (Refer to replacement part list on page 3-1)
  • Page 45 SECTION 4 - ABRASIVE RECYCLING SYSTEM Replacement Parts List - FES Assembly ..................4-1 Elevator Top Section ........................4-2 Replacement Parts List - Elevator Separator Assembly .............. 4-3 Elevator Separator Assembly - Front View ................. 4-4 Elevator Separator Assembly ....................... 4-5 Adjustment of the Abrasive Separator ..................
  • Page 46 ,.-----. ,., > \ 6 j ... _.., ... ,... 8 - --tt- - -------- M01 161 FES ASSEMBLY (01 54720) Item Part Number Number Q ty Description 0 1 54722 Elevator bottom assembly 0 1 54721 Elevator separator assembly 0 154723 Elevator top assembly Adder hopper...

  • Page 47: Elevator Top Section

    . 1 ) • �- � \..:J � MDI 164 ELEV A TOR TOP SECTION ASSEMBLY (01 54723) Item Part Number Number Q ty Description 0054787 Elevator head section shaft 0 1 54726 Weldment 600 1 824 Pulley 6000606 Bushing, 1-7/16" w/keyway 0 1 54790 Belt take-up 0002489...

  • Page 48: Elevator Separator Assembly

    ELEVATOR SEPARATOR ASSEMBLY (0 1 54721) Item Part Number Number Q ty Description 0 1 54757 Elevator/Separator weldment 0 102935 Baffle weldment 0 1 06 1 49 Refuse gate Spreader gate 000293 1 0 1 03 1 44 Swinging gate weldment 0 1 50076 Rotary screen weldment 0003767...
  • Page 49 -------1------L=::'.:'.: = ::'.'.L - -----1 � ® MO! 162a 2-20 FES ELEV A TOR/SEP ARA TOR ASSEMBLY (Refer to replacement parts list on page 4-3)
  • Page 50 - - --- _.,,,,,..- ® < [ ::-I 1---i f-­ (/') M01 162B 2-20 FES ELEV A TOR/SEP ARA TOR ASSEMBLY (Refer to replacement parts list on page 4-3)

  • Page 51: Adjustment Of The Abrasive Separator

    ADJUSTMENT OF THE ABRASIVE SEPARATOR To function properly, the abrasive separator must have an adequate air flow. The double lip separator on this unit will require a minimum air flow of 400 CFM in order to c� I ' -;? function efficiently.
  • Page 52 As the abrasive falls down to the next separator section, air is being pulled through the curtain of abrasive by the dust collector. This air flow removes the sand and fi n e contaminants from the abrasive. The size and amount of contaminant removed is determined by the adj ustment of the refuse gate (Item D) and the air baffle (Item E).
  • Page 53 BOTTOM SECTION ASSEMBLY (01 54722) Item Part Number Number Q ty Description 0 1 54705 Elevator Bottom Weldment 0 1 54776 Bottom trough 6000563 Bearing, 2" Bore 0054779 Shaft 0003742 Seal, Retainer, 2" 5000 1 33 Seal, 4"OD x ½" Thick 00240 1 8 Bearing seal 6001824...
  • Page 54 <., M0I I 63A ELEVATOR BOTTOM ASSEMBLY (Refer to replacement parts list on page 4-9)
  • Page 55 M01163B ELEVATOR BOTTOM ASSEMBLY (Refer to replacement parts list on page 4-9) 4-10...
  • Page 56 M0311E ABRASIVE VAL VE (01 1481 1) Item Part Q ty Description Number Number 7002832 Hex nut UNC 1/4-20 5002058-001 Butterfly disc - Heat treated 500012 1 Valve body insert 5000152 Lever 0003943 Shaft 5 1 00 103 Valve body 6000221 Air cylinder 5100190...

  • Page 57: Abrasive Storage Hopper

    ABRASIVE STORAGE HOPPER The storage hopper abrasive level should be full at the start up of machine. After the end of each shift allow the abrasive to recycle back into the hopper. While the abrasive is re-cycling back keep the blast wheels off and the abrasive control valves to the blast wheel closed. After a few minutes stop recycling abrasive.

  • Page 58: Elevator Belt Maintenance

    ELEVATOR BELT MAINTENANCE Belt tension should be checked regularly to insure proper operation of the recycling system. The following information should be considered when checking belt tension. The pulley in the elevator bottom section should rotate constantly without slippage or hesitation.

  • Page 59: Abrasive

    ABRASIVE The abrasive has a major influence on the efficiency of cleaning and on the profitability of the blast cleaning system. We recommend the use of tough cast steel abrasive or cut wire shot. We strongly advise against using chilled iron shot. It is less durable and its sharp edges and particular texture will cause premature wear of blast wheels and liners OPERATING MIX In most cases, the operating mix consists of rounded grains of various sizes.

  • Page 60: Steel Abrasive Sizes And General Applications

    angular in shape presenting numerous sharp cutting edges especially adaptable for matte or etched finishes. Shot is spherical in shape which produces peening to provide a smooth, more attractive finish. Many different sizes and types of shot and grit are available in today's market to meet various requirements and applications.
  • 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 BUTTON/SWITCH DESCRIPTIONS EMERGENCY STOP - Stops the entire system, including abrasive recycling system and optional dust collector. ABRASIVE RECLAIM START - Starts the abrasive recycling system and optional dust collector. SPINNER START - Starts the spinner drive. SPINNER STOP - Stops the spinner drive. BLAST WHEEL #1 START - Starts blast wheel # I .
  • Page 63 OPERATING PROCEDURES NOTE: Operator should wear eye protection during operation of this equipment. Press "Abrasive Reclaim Start" button to start the abrasive recycling system and optional d ust collector. Press "Spinner Start" button to start the spinner drive. Select "Chamber On". Select "Abrasive On".
  • Page 64 ELECTRICAL COMPONENTS (8300099-005) Part Number Description 600 1 1 7 1 Adapter 8002820 Amp meter O-l 5A 8000970 Amp meter 0-30A Aux contact block 8001342 8005556 Aux contact NC-NO 8007110 Circuit breaker 60A 8000344 Contact block NC 8000 1 1 9 Contact block NO 8007077 Disc mechanism...
  • Page 65 Terminal end anchor 8001958 Terminal end barrier 8001961 Terminal section 8000329 Timer 8003467 Timer 8001715 Timer 8001669 Timer OFF 10 sec 8000758 Timer strap 8002027 Transformer .250 KV A * REPLACEMENT PARTS LIST IS SUBJECT TO CHANGE WITHOUT NOTICE. sec5/10-2460/3672 SP2BW...
  • Page 66 SECTION 6 - GENERAL MAINTENANCE 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 ...........................
  • Page 67 ELECTRIC MOTOR MAINTENANCE In the lubrication of shot blast equipment the problem of contamination is forever present and must always be considered as a prime factor of motor bearing failure. Keep motors free of oil, dust, dirt, water and chemicals as much as possible. On non-explosive TEFC motors, a removable plug in the bottom center of the motor frame permits removal of any accumulated moisture.
  • Page 68 Longer motor bearing life is assured by proper alignment, proper belt and chain tension and proper lubrication. Please follow all instructions given in this manual when attempting any replacements or repairs. High external thrust from the driven unit is usually carried by the top bearing or thrust bearing.

  • Page 69: Gear Reducers

    GEAR REDUCERS All Goff equipment uses high quality wonn gear speed reducers. The lubricant should be changed after the first 100 hours of operation. Drain out initial oil and flush out the gear case with an approved non-flammable, non-toxic solvent and refill.
  • Page 70 Very few Goff machines do not have an abrasive separator. These machines only have a primary screen that is under the blast chamber. However, most Goff machines have an abrasive separator. These machines have different screen systems in the abrasive separator that may vary from machine to machine.

  • Page 71: Chambers

    Both refuse spouts should be inspected periodically for accumulation and cleaned if necessary. CHAMBERS There are a variety of chambers that Goff uses in its machines. Spinner Hanger Machines have a chamber drum that is divided into 2 or 3 equal sections.

  • Page 72: Roller Chain Drives

    Not every Goff machine has liners. Goff liners come in different varieties. Some Goff machines will have more than one type of liner. These varieties include cast alloy liners, plate liners, hanging liners, table liners, ban-el head liners, and abrasive resistant rubber.
  • Page 73 Proper lubrication of the bearing surfaces of the chain is of major importance in retarding wear. Installation of a new chain or badly worn sprockets will result in excessive chain wear and serious shortening of the life of the drive. Careful and accurate installation is essential for trouble free operation.

  • Page 74: Air Cylinders

    AIR CYLINDERS The most common use for an air cylinder on a Goff machine is on the abrasive valve assembly. Most machines use them on their door locking mechanism. If a significant decrease in air pressure is noted or full cylinder extension is not being achieved, the cylinder may require replacement.

  • Page 75: Belt Drives For Spinner Hangers And Conveyors

    Replace belts when worn or cracked. Always release the belt tension before removing the belt. HTD rubber belts are usually on Goff's heave spinner hanger machines. An HTD rubber belt drives the chamber drum. Both urethane and HTD belts will be used on heavy spinner hangers.
  • Page 76 V-belts are used on older model heavy spinner hangers. The proper installation procedures, alignment, inspection and general maintenance of these drives are vitally impo11ant to efficient performance of the machine. Always use matched belts. V-belts are manufactured either by molding or are cut to specified shape.

  • Page 77: Rollers

    ROLLERS Rollers are a slow wear item so only periodic inspection will be necessary. When a roller's shell becomes worn down to 20% of its shell thickness, the roller must be replaced. If the roller will not freely roll, inspect and replace if necessary. p ��...
  • Page 78 SECTION 7 - SAFETY AND PREVENTIVE MAINTENANCE Preventive Maintenance Check List ..................7-1 Suggested Preventive Maintenance ..................7-2 Safety ............................. 7-6 Instructions for Welding and Cutting Work on Descaling Machines and Blast Cleaning Systems ........... 7-14 Safety Tips ........................... 7- 15 Lock-out/Tag-out .........................

  • Page 79: Preventive Maintenance Check List

    PREVENTIVE MAINTENANCE Routine inspection is the key to preventive maintenance. This assures that needed repairs are discovered while they are still minor. Here is a suggested maintenance check list: PREVENTIVE MAINTENANCE CHECK LIST AFTER 1 HOURS OF OPERATION DAILY WEEKLY MONTHLY YEARLY ITEM...
  • Page 80 SUGGESTED MAINTENANCE SCHEDULE Blast Wheel Wear Parts - Inspect Daily Replace when wear parts are deeply grooved or worn to half original thickness. Blast Wheel - Balance & Noise - Daily Testing for balance is done by running the blast wheel with the blades in position and then without blades.
  • Page 81 Gear Reducers - Inspect Monthly Replace gear oil every 2500 hours or annually. Check the manufactures nameplate attached to each reducer for the correct lubricant to use. Check for oil leaks. Check for end play in shafts and all bolts retaining hardware. Noticeable movement might indicate service or part replacement is necessary.
  • Page 82 Adjusting the belt tracking In the first operating phase of belt conveyors, care must be taken that the belt tracking is perfect even under varying operating conditions. Incorrect belt tracking will invariably cause major damage. To adjust the tracking and the tension of the belt, tensioning spindles are provided on the tensioning station.
  • Page 83 Belt Conveyor Maintenance - Everyday: Check belt tracking. In the first operating phase you must check the belt once a day for straight tracking. Incorrect belt tracking increases wear and causes damage to the belt conveyor. After every 1 60 operating hours: Check belt tracking.
  • Page 84 SAFETY There are several advantages to an effective safety program which include: lower operating costs, lower worker compensation, less work time lost, high employee moral and less problems. No one can work safely without knowing what precautions one must take to ensure one's personal safety.
  • Page 85 Should any defects within the protection system occur, eliminate them immediately and report them to the supervisors or to the plant manager. Before adjusting, servicing or repairing the blast cleaning system, you must follow the shut-off procedures explained in the Operating Instructions and put the blast cleaning system into "lock out/tag out".

  • Page 86: Safety

    SAFETY RECOGNIZE SAFETY INFORMATION This is the safety-alert symbol. When you see this symbol, become alert! Your safety is involved. UNDERSTAND SIGNAL WORDS A signal word - DANGER, WARNING or CAUTION is usually near specific hazards. DANGER - Indicates an imminently hazardous situation DANGER which, if not avoided, will result in death or serious injury.
  • Page 87 READ OPERA TING INSTRUCTIONS AND WARNING SIGNS CAREFULLY Read all warning messages in this manual and warning signs on your machine. Keep warning signs in good condition. Replace missing or unreadable warning signs. LEARN MACHINE SAFETY Carefully read this manual. Learn how to operate blast machine and how to use controls properly.
  • Page 88 PREPARE FOR EMERGENCIES Be prepared if a fi r e starts. Keep first aid kit and fire extinguisher handy. Keep emergency number for doctors, ambulance service, hospital, and fire department near your telephone. WEAR PROTECTIVE CLOTHING Always wear fairly tight clothing and proper safety equipment. AVOID HIGH-PRESSURE FLUIDS Escaping fl u id under pressure can penetrate the skin causing serious injury.
  • Page 89 ® 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 of the cabinet is equipped with an electrical protective device.
  • Page 90 If a protective guard has an interlock that interrupts the automatic cycle, it then comes under the defi n ition 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"...
  • Page 91 PROTECTIVE SYSTEM COMPONENT LOCATIONS A maintenance access door is located on the blast machine. This door must be closed to allow machine operation. The service access door and its protective circuit must be inspected and tested at the beginning of each shift. ELECTRIC POWER TO CONTROL PANEL AND BLAST CLEANING MACHINE Lock switch in the off position with padlock when it is necessary to enter machine.

  • Page 92: Instructions For Welding And Cutting Work On

    INSTRUCTIONS FOR WELDING AND CUTTING WORK ON DESCALING MACHINES AND BLAST CLEANING SYSTEMS FOR ALUMINU M WORK PIECES Descaling machines and blast cleaning systems for aluminum work pieces always involve an increased risk of fire and explosion. The plant management has the obligation to make the maintenance and service personnel aware of these dangers and to point out the hazards of fire and explosion posed by mixtures of dust and air generated inside the blast cleaning cabin, the fi l ters and the piping and tubing system.

  • Page 93: Safety Tips

    SAFETY TIPS The first step before any maintenance or inspection takes place should be to disconnect the power. This includes removing all electric, pneumatic and hydraulic power sources. Then LOCK-OUT and TAG-OUT the machine. Wear proper eye protection at all times. Practice good preventive maintenance.

  • Page 94: Lock-Out/Tag-Out

    LOCK-OUT/TAG-OUT As described in the Safety M anual, the lock-out/tag-out is to prevent unexpected movement of parts of the blast cleaning system and thus to provide maximal protection during maintenance and repair work. If protective devices are removed or work is carried out on the blast cleaning system without protective devices, the blast cleaning system must be in lock-out/tag-out.
  • Page 95 PUTTING THE BLAST CLEANING SYSTEM INTO LOCK-OUT/TAG-OUT Before performing periodic maintenance work, you must unload the blast cleaning system and stop it as described in the Operating Instructions. The cabinet door must be open and there must not be any parts inside the blast cabinet. To prevent inadvertent movement of individual components while the blast cleaning system is in lock-out/tag-out, you will have to evacuate the abrasive from the blast cleaning system.
  • Page 96 LOCK-OUT/TAG-OUT AFTER A FAULT If the blast cleaning system stops after a fault, there might still be parts inside the blast cabinet. To move the parts out of the blast cabinet, proceed as described below: • Switch off all drives. •...
  • Page 97 TESTING THE BLAST CLEANING SYSTEM FOR L0CK-OUT/f AG-0UT To make sure that the blast cleaning system is in lock-out/tag-out, check the following: Control system - it must not be possible to switch on the control system. Pressure in the pneumatic system - the pressure gauge for compressed air must indicate 0 bar, (0 psi).
  • Page 98 RESTARTING THE BLAST CLEANING SYSTEM AFTER LOCK-OUT/TAG-OUT After lock-out/tag-out, you must restart the blast cleaning system as follows: Check that repair or other work is completed and that nobody is within or in the immediate vicinity of the blast cleaning system. Check that all tools which were used have been removed from the blast cleaning system.

  • Page 99: Trouble Shooting

    TROUBLE SHOOTING MALFUNCTION CAUSE SUGGESTED REMEDY CABINET AND BLAST WHEEL EXCESSIVE Unevenly worn blades Replace blades with a new complete VIBRATION set. Check separator adjustment. Inadequate contaminant removal could cause blades to wear faster Usually caused by abrasive rebound Chipped or broken blades. action.
  • Page 100 TROUBLE SHOOTING MALFUNCTION CAUSE SUGGESTED REMEDY - denotes a Check abrasive for dirt or other malfunction which contaminants which should have even though it permits been removed by the separator. production to continue Check separator adjustment. it might eventually cause serious machine Check feed lines for obstructions that could reduce flow through the damage...

  • Page 101: Abrasive Recycling System

    TROUBLE SHOOTING MALFUNCTION CAUSE SUGGESTED REMEDY INSUFFICIENT AIR Faulty air cylinder Check and replace air cylinder if PRESSURE necessary. Faulty valve. Check and repair or replace. Faulty air lines Air hoses could become clogged causing air flow to be obstructed. Blow hoses and clean lines.
  • Page 102 TROUBLE SHOOTING MALFUNCTION CAUSE SUGGESTED REMEDY operation, do not overload elevator by adding large quantities of abrasive in a short period of time. ELEVATOR BELT Belt tension is too tight, Check belt for proper alignment and BREAKAGE break could occur at the tension.

  • Page 103: Electrical System

    TROUBLE SHOOTING MALFUNCTION CAUSE SUGGESTED REMEDY ELECTRICAL SYSTEM FUSES BLOW OUT Could be loose in fuse Check the fuse connections. Check for holder, slightly undersize grounded circuit, bare wire or poorly or overloaded. taped joints. PUSH BUTTON Abrasive dust or dirt. Remove button cover and blow out.

  • Page 104: Hydraulic System

    TROUBLE SHOOTING MALFUNCTION CAUSE SUGGESTED REMEDY POOR Refuse hoppers full. A daily schedule of inspection should VENTILATION be set up to empty the dust collector refuse hoppers. Locate and replace or repair. Faulty valve. A hole in the dust cartridge could be Hole in dust cmiridge caused by trapped metal or debris entering the ca1iridge.

  • Page 105: Crd Mechanics System

    PARTS NOT CRD tilt position is zero. Increase tilt position above zero. EXITING DRUM Parts too big. Use smaller parts. Contact Goff for ONTO VIBRATORY possible larger machine. CONVEYOR Fast feed rate of parts into Lower the feed rate of parts into drum.

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