Schmidt AmphiBlast 120 Operation And Maintenance Manual Download

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109

12.5

Surface Preparation Information Sources

The Society for Protective Coatings (SSPC)

consists of research and testing committees,

conducts seminars and establishes industry standards on surface preparation methods, abrasive
and coatings.

Phone: 1-412-281-2331
Website: www.sspc.org

The Society for Protective Coatings
40 24th Street
Pittsburg, PA 15222-4643

National Association of Corrosion Engineers (NACE)

develops test methods and

recommended practices on surface preparation techniques and coatings.

Phone: 1-281-228-6200
Website: www.nace.org

National Association of Corrosion Engineers
1440 South Creek Drive
Houston, TX 77084

12.6

Table of Blast Abrasive Characteristics

Abrasive

Type

Hardness

(Mohs)

Grain
Shape

Density

Lbs/ft3

Color

Free Silica

Content

No. of

Recycles

Initial

Cost

Typical Use

Corn Cobs

angular

35-45

tan

none

4-5

low

stripping paint from

delicate substrates

Sodium

Bicarbonate

2.8

crystal

white

none

4-5

medium

cleaning and stripping paint

from delicate substrates

Walnut Shell

angular

lt. brown

none

4.5

low

stripping paint from

delicate substrates

Plastic

3.2

angular

45-60

white

none

8-10

medium

Paint stripping,

deburring, and cleaning

Glass Beads

4.5

spherical

crystal

none

8-10

low

cleaning

finishing

Starblast XL

6.5

spherical

128

lt. brown

<1%

4-5

medium

outdoor blasting

Coal Slag

angular

black

none

1-2

medium

outdoor blasting

Copper Slag

angular

112

black

none

1-2

medium

outdoor blasting

Garnet

angular

147

pink

<2%

4-5

medium

outdoor blasting

Steel Shot

spherical

295

steel grey

none

200

low

cleaning and peening

Steel Grit

angular

250

steel grey

none

200

medium

removing heavy scale

Aluminum

Oxide

angular

120

brown

<1%

6-8

medium

cleaning and finishing,

deburring and etching

Summary of Contents for AmphiBlast 120

Page 1: ...LE TO ALL USERS OF THIS EQUIPMENT Manual Part Number 7200 335 01 Available for downloading from SchmidtAbrasiveBlasting com Copyright 2019 AXXIOM Manufacturing Inc 11927 S Highway 6 Fresno Texas 77545 800 231 2085 281 431 0581 fax 281 431 1717 Website Visit us at www SchmidtAbrasiveBlasting com Manual ...

Page 2: ...blaster vessel before loading abrasive or performing any maintenance 6 Do Not use abrasives containing free silica Silica can cause silicosis or other related respiratory damage All operators must wear personal protective equipment for all abrasive blasting operations Observe all applicable local state and federal safety regulations in conjunction with airline filters and respiratory protection Re...

Page 3: ... as needed while reading this manual Term Definition Pressure Vessel A fabricated tank or reservoir that is part of the abrasive blaster which is filled with compressed air and abrasive Also referred to as blast vessel or vessel Pressurize To manually or automatically fill the abrasive blast vessel with compressed air Depressurize To manually or automatically release all the compressed air from in...

Page 4: ...coupling Replacing the full port threaded coupling on the Thompson Valve with another type will result in equipment malfunction Use the correct part or the adapter hose provided with the equipment 6 1 7031 082 Danger Pressurized vessel Handway components Propelled objects will cause serious injury or death Incorrect or damaged handway or manway cover components can result in failure See Section 6 ...

Page 5: ...Copyright 2019 Axxiom Manufacturing Inc 3 7031 007A 4 7031 057 5 7031 090 6 7031 082 7 7034 001 welded 7 7031 084 decal Units manufactured after September 2017 Figure 0 1 b Warning Decal Summary continued ...

Page 8: ...ctive Equipment 22 4 0 Abrasive Blast System General Operation 28 5 0 AmphiBlast System General Operation 29 6 0 Pre operation Procedures 38 7 0 Operating Instructions 48 8 0 Maintenance and Inspection Instructions 57 9 0 Drawings and Parts Lists 67 10 0 Recommended Spare Parts Lists 95 11 0 Troubleshooting 97 12 0 Warranty and Reference Information 106 13 0 Blasting Data Tables 110 14 0 Water Pum...

Page 9: ...ULT IN SERIOUS INJURY OR DEATH TO OPERATING PERSONNEL OR PERSONS IN THE OPERATING VICINITY 1 2 KNOW YOUR EQUIPMENT Do Not operate this equipment in a manner other than its intended application see Section 4 0 Do Not operate this equipment or any other Schmidt equipment without following the Rules for Safer Operation and all the operating procedures and instructions Learn the applications and limit...

Page 10: ...FR 1910 134 Abrasive blasting produces dust which may contain silica and other toxic substances that can cause severe and permanent lung damage cancer and other serious diseases if inhaled All operators and personnel in the vicinity must wear OSHA approved respiratory protection during the operation of this equipment See Sections 3 9 3 10 and OSHA 29 CFR 1910 134 1 7 BREATHING AIR QUALITY Do Not u...

Page 11: ...ment when you are tired or fatigued Use caution and common sense while operating and or performing maintenance on this equipment 1 12 DO NOT USE DRUGS ALCOHOL or MEDICATION Do Not operate this equipment while under the influence of drugs alcohol or any medication 1 13 PROTECT BYSTANDERS Do Not allow blast equipment operators and other personnel to enter the vicinity of the blast operation without ...

Page 12: ...Do Not operate this equipment in a condition that may cause failure of the pressure vessel See Sections 1 22 through 1 32 below An abrasive blaster is a Pressurized Vessel Alterations damage or misuse of the pressure vessel can result in rupturing Damaged or incorrect components used on the abrasive blaster can result in rupturing The compressed air inside a pressurized vessel contains a dangerous...

Page 13: ...iately and have it inspected and or repaired by a qualified facility Contact Axxiom Manufacturing Inc for technical support See Section 8 0 1 30 CHECK FOR LEAKS IN VESSEL Do Not operate this equipment if there is a leak in the pressure vessel If leaking take out of service immediately and have it inspected and or repaired by a qualified facility Contact Axxiom Manufacturing Inc for technical suppo...

Page 14: ...the air hose can plug the bleed hole in the deadman valve and cause the blast outlet to turn on 1 37 CHECK FOR DAMAGED PARTS Do Not use this equipment with damaged components Periodically check all valves hoses fittings pipe and pipe fittings internal and external to confirm that they are in good condition Repair or replace any component that shows any sign of wear leakage or any other damage See ...

Page 15: ... cause equipment malfunction Screen recycled abrasive to remove trash 1 44 STOP OPERATION IMMEDIATELY IF ANY ABNORMALITY IS DETECTED Do Not operate this equipment if anything abnormal is seen during operation Stop operation immediately for inspection Refer to Section 8 0 for maintenance and inspection details 1 45 DO NOT OVERLOAD THE LIFT EYES Do Not load the lifting eyes above the rated capacity ...

Page 16: ... at low speeds only 15 mph 1 54 DO NOT EXCEED 65 MPH TRAILER SPEED Do Not tow highway trailer mounted bulk abrasive blasters at speeds exceeding the 65 mph tire rating Replacement tires must be of equivalent speed and load ratings See Section 9 3 1 55 DO NOT TRANSPORT BLAST EQUIPMENT LOADED WITH ABRASIVE Portable abrasive blasters are not intended to be moved or transported loaded with abrasive Do...

Page 17: ...ualified personnel should load and unload this equipment for shipping Slings or other lifting devices must only be attached to the designated lifting points See the lifting diagrams shown in Section 2 6 2 1 6 For further information on options and accessories available for Schmidt abrasive blasters visit the Axxiom website or contact us Axxiom Manufacturing Inc 11927 South Highway 6 Fresno Texas 7...

Page 18: ...e provisions of the ASME Code Section VIII Div 1 and are registered with the National Board of Boiler Pressure Vessel Inspectors 1055 Crupper Avenue Columbus Ohio 43229 Should Manufacturer s Data Reports be required they may be obtained from the National Board for a small fee 2 4 2 In order to maintain the high level of quality and quality control used in the manufacture of this vessel it is requi...

Page 19: ...nsional Specifications An abrasive blaster is a Pressurized Vessel The compressed air inside a pressurized vessel contains a dangerously high level of energy which can propel objects and cause serious injury or death Depressurize vessel before lifting moving or transporting See Section 6 2 ...

Page 22: ...vided with mounting holes in the bottom leg foot pad These holes can be used for securing the blaster to the floor or mounting structure 3 2 Compressed Air Requirements blast nozzle The blast nozzle size and blast pressure determine the compressed air requirements Available air flow capacity and or air compressor size must be considered before selecting the blast nozzle size An air source dedicate...

Page 23: ...sure backflow only use a non relieving air regulator Air pressure backflow will carry abrasive from the blast vessel and contaminate the blast control system CRITICAL A regulator with sufficient air flow capacity must be selected for proper operation of the blast system Insufficient air flow capacity will cause pressure drop in the blast system resulting in equipment malfunction abrasive backflow ...

Page 24: ...perating personnel Always use abrasives containing less than 1 of crystalline silica Always use a NIOSH approved respirator when handling loading and cleaning up abrasives Organic substances which are combustible may only be used in automated blast systems with ventilation that meets OSHA 29 CFR 1910 94 3 9 Breathing Air Quality All blast operators must be supplied with and required to use NIOSH a...

Page 25: ...to each operator Reference 29 CFR 1910 Subpart I OSHA requires that this equipment meet or be equivalent to standards developed by the American National Standards Institute ANSI Figure 3 10 below identifies the minimum personal protective equipment required for each abrasive blast operator Also identified are the OSHA references for each and the ANSI standard each PPE item must meet All PPE clothi...

Page 26: ...ve that meets all applicable regulations The pressure relief device must be set at the maximum allowable working pressure of the abrasive blaster pressure vessel See the ASME vessel nameplates attached to the pressure vessel Rupture Hazard Operating the pressure vessel above the maximum allowable working pressure can result in rupturing the pressure vessel Install an air pressure relief valve to p...

Page 27: ...ecord here See Sections 3 2 3 3 and 3 5 for information on determining air requirements Air supply connection install air supply piping or connect an air supply hose that is the same size as the air inlet size or larger See Section 3 4 for details Air quality install moisture separator or AirPrep System to remove moisture from blast air supply to protect against abrasive flow problems See Section ...

Page 28: ...blast operation it is common for the compressed air to be fed through a moisture removal device such as a Schmidt AirPrep System The air pressure in the abrasive blast vessel is equal to the air pressure in the blast hose where it connects at the metering valve This equal pressure is needed to allow the blast abrasive to flow downward by gravity The abrasive flow is controlled by the metering valv...

Page 29: ...multaneously opens the automatic air valve 9 the Thompson Valve 14 and the water shut off valve 52 Compressed air will pressurize the blast hose 10 when the automatic air valve 9 is opened At the same time the Thompson Valve 14 and water shut off valve 52 will open allowing abrasive to fall through and water to be injected into the blast air stream The abrasive flow can be increased or decreased b...

Page 31: ...the air inlet ball valve is opened the air flow will pressurize the blast vessel 1 7 Note Units manufactured after November 2013 include a lockout feature on the inlet ball valve to stop air flow into the bulk abrasive blaster Then depressurize per Section 6 2 to disable 5 4 Moisture Separator optional Air flow into the blaster passes through the moisture separator 7 which removes moisture oil and...

Page 32: ...tering valve The Thompson Valve 14 is a normally closed valve that opens to supply abrasive into the blast air stream The Thompson Valve opens when it receives air to its signal port see Section 9 4 This happens when the deadman lever 12 is pressed down which opens the blast abrasive control valve 64 sending an air signal to the Thompson Valve When the deadman lever is released the air signal from...

Page 33: ... Abrasive Cutoff There are three uses for the abrasive cutoff feature The first is to allow blasting air and water without abrasive wash down This is useful for washing off abrasive from item that has been wet blasted See Section 7 7 for instructions on the wash down procedure The second is to allow blasting air without water and abrasive blow off This is useful for blowing off abrasive from an it...

Page 34: ...e The blast nozzle 11 is an important part of the blast operation since the size of it determines the air flow and abrasive requirement The amount of air flow and abrasive determine how quick blasting can be done The larger the nozzle the more air and abrasive will be needed The larger the nozzle size the greater the blast productivity However for a fixed amount of air supply increasing the nozzle...

Page 35: ... The spring clamp 65 can then be removed to separate the Thompson Valve from blast vessel 1 See Figure 5 5 The Abrasive blaster is a Pressurized Vessel Propelled objects will cause serious injury or death Depressurize vessel before performing any maintenance See Section 6 2 Figure 5 5 Abrasive Shut Off Valve 5 16 Mode Selector The mode selector 47 allows you to quickly switch back and forth betwee...

Page 36: ...blast pressure will make it impossible to maintain consistent water differential pressure There are three ways to correct the problem 1 change to a larger air compressor 2 change to a smaller nozzle or 3 reduce the blast pressure until no pressure drop is observed on the inlet pressure gauge 45 See Section 7 4 for procedure 5 20 Water Pump The water pump 58 uses compressed air to create a pressuri...

Page 37: ...which opens the blast control valve 20 sending an air signal to the water shut off valve 52 When the deadman lever is released the air signal from the blast control valve 20 vents and the water shut off valve 52 spring closes to stop the flow of water See drawing in Section 9 7 5 24 Injection Module The injection module 32 is where water is introduced into the blast stream The injection module hol...

Page 38: ... vessel above the maximum allowable working pressure can result in rupturing the pressure vessel Install an air pressure relief valve to protect against over pressurization of the blast vessel See Section 3 11 6 1 4 Make certain that the abrasive blaster is not pressurized Follow the depressurizing procedure given in Section 6 2 Airborne particles and loud noise hazards from blowdown exhaust air c...

Page 39: ...es or electric deadman extension cords so not to cross connect them Each must be connected to the matching blast outlet control Cross connecting will result in unintentional blast startup and could result in serious injury or death 6 1 12 Connect a 150 psi rated minimum air supply hose to the air inlet valve 3 and install safety pins 39 and a hose whip check 40 to protect against accidental discon...

Page 40: ...ry 2010 Airborne particles and loud noise hazards from blowdown exhaust air can cause serious injury and loss of hearing Wear approved eye and ear protection Stay clear of blowdown air path DO NOT place hands or other body parts in the blowdown air path Make sure no personnel are in the blowdown air path 6 2 3 The blowdown ball valve 4 should be inspected for proper operation before each use of th...

Page 41: ...ng any swing bolts out of the holding lugs Hold the swing bolt within the holding lug with one hand and swing each camlock handle down with the other hand Note The Halok Assembly 26 prevents the swing bolts from swinging out of the holding lugs until all camlock handles are in open position See Figure 6 3 1 The closure assembly is part of a Pressurized Vessel Component failure will propel objects ...

Page 42: ...e closure assembly opening procedure per the steps below 6 3 5 With all the camlock handles 29 in the open position the Halok can be rotated counter clockwise to allow access to the swing bolts see Figure 6 3 2 Manually swing each swing bolt out over the holding lug The closure assembly is part of a Pressurized Vessel Component failure will propel objects causing serious injury or death DO NOT use...

Page 43: ...h closure head handle or hinges and to insure proper operation of the closure Halok 6 The torque on the camlock assembly nuts must be properly adjusted See Sections 8 4 and 8 5 for closure assembly maintenance instructions and adjustment procedures The closure assembly is part of a Pressurized Vessel Component failure will propel objects causing serious injury or death DO NOT operate the bulk abra...

Page 44: ...ear Each camlock assembly and hinge must be tested for ease of operation Any camlock swing bolt nut or hinge that show signs of damage corrosion wear or does not swing freely must be repaired or replaced before re pressurizing the blast vessel The camlock handles must be installed into the cam lugs as shown in Figure 6 4 1 b so there is no interference with closure head handle or hinges and to ins...

Page 45: ...ks Periodically check the closure for leaks thereafter The closure assembly is part of a Pressurized Vessel Component failure will propel objects causing serious injury or death If the closure assembly is leaking air depressurize the bulk abrasive blaster per Section 6 2 and inspect per Section 8 4 Do Not use the bulk abrasive blaster with the closure assembly leaking air Note Bulk abrasive blaste...

Page 46: ...must be smooth 6 5 4 Preassemble the bolts through each crab and thread on each nut a couple of turns 6 5 5 Securely place the gasket on the manway cover fitting it under the Manway Stay Bracket tabs The gasket is held in place by the tabs Refer to Figure 6 5 b 6 5 6 Fit the cover with gasket through the manway opening 6 5 7 Place the cover and gasket in position against the inside edge of the man...

Page 47: ...17 5 8 14 3 4 18 3 8 16 3 4 20 3 8 Manway Gasket 14 17 3 4 14 3 4 18 3 8 16 1 2 20 3 8 Manway Crab 2 12 1 4 2 1 4 13 1 4 2 3 4 14 7 16 Square Head Bolt 1 UNC 5 1 2 1 UNC 5 1 2 1 UNC 5 1 2 11 x 15 Manway was used on bulk abrasive blasters manufactured prior to October 1994 12 x 16 Manway is the standard size on bulk abrasive blasters manufactured since October 1994 14 x 18 Manway is an uncommon opt...

Page 48: ...on and maintenance manual 7200 275 for operating instructions See Section 9 11 for diagram 7 1 4 When the level begins to approach to the bottom of the closure be prepared to stop the abrasive flow Close the slide valve to stop abrasive flow 7 1 5 Inspect the closure assembly per the instructions given in Section 8 4 The closure assembly is part of a Pressurized Vessel Component failure will prope...

Page 49: ... 56 It is located on the water pump mount panel below the control panel 7 3 8 Turn the knob of the water differential pressure regulator 50 counter clockwise until the water pump air supply pressure gauge 66 reads 0 psi 7 3 9 Open the water pump air supply ball valve 60 7 3 10 Slowly turn the water differential pressure regulator knob 50 clockwise until the water pump air supply pressure gauge 66 ...

Page 50: ...st nozzle towards yourself or any person A system malfunction or a blocked blast nozzle that clears can trigger accidental start up resulting in injury to personnel 7 4 11 Turn the blast pressure regulator knob 44 to set the blast pressure gauge 49 to the desired blasting pressure See Section 5 17 for procedure 7 4 12 Observe the inlet pressure gauge 45 and blast pressure gauge 49 to make sure the...

Page 52: ...palm button control valve 48 7 5 7 Turn the abrasive cutoff valve switch 62 to the ON position See Figure 5 3 7 5 8 For initial startup the Thompson Valve 14 should only be partially open Turn the valve knob clockwise to completely close then turn counterclockwise about four turns to partially open The best setting for the valve varies depending on abrasive type blast pressure and nozzle size ther...

Page 53: ...w the knob position relative to the abrasive flow The markings relative to the knob can be used as reference when changing nozzle size or abrasive for different applications 7 5 19 Re test the blast air and abrasive mixture again on a test piece to determine if further adjustment is needed Release the deadman lever 12 to stop blasting 7 6 Beginning the Wet Blasting Operation 7 6 1 The abrasive bla...

Page 54: ...irator is still required during blast operation All operators and personnel in the vicinity must wear OSHA approved respiratory protection during the operation of this equipment See Sections 3 9 3 10 and OSHA 29 CFR 1910 134 7 6 14 With one hand grip the blast hose assembly 10 and with the other hand press in the deadman safety button To begin blasting aim the blast nozzle 11 at the object to be b...

Page 55: ...urther adjustment is needed Release the deadman lever 12 to stop blasting 7 6 24 It may be necessary to make further adjustments to the water flow after final abrasive flow adjustments are complete 7 6 25 After blasting is finished for the day it is a good idea to purge the wet abrasive from the blast hose 10 Turn the abrasive cutoff valve or switch 62 to the off position See Figure 5 3 Continue t...

Page 56: ... not turn off the air compressor and allow the abrasive blaster air pressure to back flow through the air supply system Back flow will carry abrasive into the moisture trap 7 and contaminate the controls 7 9 2 Completely open the drain ball valve 8 at the bottom of the moisture trap 7 to allow all the accumulated moisture to be drained out Close the ball valve after draining 7 9 3 Completely depre...

Page 57: ...xiom Manufacturing Inc for technical support Refer to the ASME Data Report for the vessel minimum thickness Check the pressure vessel internal piping for corrosion cracks wear holes or any other damage Repair or replace damaged components Remove and clean out y strainer element See sections 9 1 b and 9 2 b 8 4 Closure Assembly Before pressurizing the bulk abrasive blaster the camlock handle assemb...

Page 58: ...s that show any signs of wear or damage Damaged hoses piping pipe fittings or wires can cause system malfunctions and can result in serious injury or death to operating personnel Blast hoses are a high wear component of the abrasive blast system Sharp bends in the blast hose create high wear points resulting in soft spots where the blast hose wall has thinned These areas can rupture while blasting...

Page 59: ...re the same brand See the drawings and part lists in Section 9 0 Figure 8 3 Hose End Fit up 8 9 Blast Nozzle s Remove the blast nozzle daily and check the jacket and thread condition Check nozzle throat diameter An over sized throat diameter reduces blast efficiency Replace the blast nozzle if worn or damaged 8 10 Valves Thompson Valves Automatic air valves control valves and deadman valves should...

Page 61: ...ace the pipe fittings upstream of the valve These fittings are the 1 x 3 nipple 1 tee and the 1 plug see Figure 8 4 Inspect the downstream fittings for wear and replace as necessary These fittings include the CEN nozzle bell reducer nipple muffler and rain cap Inspect the abrasive blaster pressure vessel coupling prior to re installing the blowdown ball valve and fittings Check for thread damage c...

Page 62: ...e Determine the model number of the bulk abrasive blaster and torque the wheel lug nuts to the specifications shown in Table 8 4 Torque the wheel lug nuts in the sequence shown in Figure 8 5 Model Bolt Pattern Wheel Type Thread Size Lug Nut Type Torque ft lb 12 000 lb 6 on 5 5 circle Single 1 2 20 60 Degree cone 80 90 16 000 lb 8 on 6 5 circle Single 9 16 18 90 Degree cone 175 200 20 000 lb 8 on 6...

Page 63: ...r pin hole Wheel should turn freely Insert new cotter pin through nut and spindle If necessary loosen never tighten nut to align the slot with the hole in the spindle Bend one leg of the cotter pin over the end of the spindle and the other leg over the nut Tap legs slightly to set Cotter pin must be tight 3 Torque Wrench Method Make sure nut is loose Tighten nut with torque wrench to an initial to...

Page 64: ...t wiring for bare spots fraying cuts or cracks See Section 8 6 X Blast Air Hose Couplings Check for safety pins and whip checks See Section 8 7 X Hose Coupling Gaskets Check for leaks at the air blast coupling and threaded hose coupling gaskets See Section 8 8 X Blast Nozzle Check blast nozzle threads and jacket for wear damage or air leaks See Section 8 9 X Valves With valves off and blast vessel...

Page 65: ...X Trailer Brake Wiring Inspect wiring for bare spots fraying etc X Breakaway Systems Check battery charge and switch operation Before every use Hub Drum Check for abnormal wear or scoring See Section 8 18 X Wheel Bearings Cups Inspect for corrosion or wear clean and repack See Section 8 18 X Seals Inspect for oil leakage replaced if removed See Section 8 18 X Springs Inspect for wear or loss of ar...

Page 67: ... the abrasive blast system is equipped with pneumatic or electric controls then reference the appropriate drawing and parts list to determine the required parts To insure the proper operation of the blast system only use Schmidt original factory replacement parts furnished by an authorized Schmidt distributor See Section 1 39 and Section 12 2 12 9 0 Drawings and Parts Lists ...

Page 90: ...90 Copyright 2019 Axxiom Manufacturing Inc 9 9 Deadman Switches Electric Electric shock hazard To minimize shock hazard use electric deadman in low voltage applications only 12 24 volts ...

Page 95: ...rts Kit 3 29 5 7007 519 02 Camlock Handle Assembly 5 lug 29 5 8408 000 80 Camlock Handle Extension 32 1 XPD 0059 110 Injection Module 34 2 7000 004 06 Manway Gasket 12 x 16 35 1 2013 402 Dust Eliminator 1 4 36 2 4205 108 Hose Insert 1 1 2 36 10 4205 108 99 Insert Gasket 1 1 2 37 2 4235 008 Hose Clamp Double Bolt 1 1 2 for field installation 38 10ft 4102 008 Air Hose 1 1 2 39 20 7119 002 Safety Pin...

Page 97: ... the way down hand tighten only 7 Control valve 64 stuck in the ON position 11 1 2 Abrasive stops but blast air will not shut off 1 Defective or broken spring in automatic air valve 75 2 Defective seat in automatic air valve 3 Blocked signal air hose to automatic air valve 4 Defective o ring in automatic air valve around shaft 5 Control valve 20 stuck in the ON position 11 1 3 Both blast air and a...

Page 99: ...low 1 Low air compressor output CFM See Section 3 0 to determine air requirements 2 Air supply hose to blaster is too small See Section 3 0 3 Thompson Valve abrasive adjustment knob 14 is open too far 4 Check for leaks in blast vessel closure or manway or control piping 5 Choke valve 13 is partially closed 6 Trash may be partially plugging the nozzle orifice 11 7 Blocked automatic air valve 9 brea...

Page 100: ...is can cause cracks that may lead to pressure vessel rupture 11 3 2 Choking the blast outlet The choke valve 13 is used to clear any trash that may get into the blast vessel and block the Thompson abrasive valve orifice Whenever trash paint chip cigarette butt etc blocks the abrasive valve orifice the procedure is to fully open the valve by turning the knob counterclockwise then press down the dea...

Page 101: ...rt of the pressure vessel to improve abrasive flow This can cause cracks that may lead to pressure vessel rupture 11 3 5 Recycled Abrasives Used recycled abrasives can contain trash coating particles removed from previously blasted items particularly sticky coatings that can cause abrasive to clump together and block the metering valve orifice and stop flow Prior to use recycled abrasive must be p...

Page 102: ... bearing 11 4 3 Locking Brakes 1 Check for improper brake adjustment 2 Check for broken or loose brake parts 3 Check for damaged or out of round brake drums 11 4 4 No Brakes 1 Low brake fluid level 2 Broken brake line 3 Loose brake line connection 4 Air in the brake lines 5 Master cylinder not working 6 Excessive weight on tow bar 11 4 5 Weak Brakes 1 Trailer is overloaded 2 Not enough brakes on t...

Page 103: ... duty fluid is recommended 2 Fill the master cylinder with fluid Install bleeder hose on first wheel cylinder to be bled If tandem trailer bleed rear axle first Have loose end of the hose submerged in brake fluid in glass container to observe bubbling 3 Loosen the wheel cylinder bleeder screw one turn This will open the system to the atmosphere due to the passage drilled through the bleeder screw ...

Page 104: ...r supply circuit 3 If brakes are locked when 4 way flashers are operated check for pulse preventor installed in circuit 11 5 4 LED Light Comes On Dim Gets Brighter as Brakes Applied 1 If trailer is connected this indicates normal operation 2 If trailer is not connected check for short in electro magnet circuit between controller and trailer connector at rear of vehicle 11 5 5 LED Light Comes On Br...

Page 105: ...n 2 0 2 Check for loose or corroded connections 3 Check for properly wired system 4 Check for a shorted circuit 5 Check variable resistor for correct resistance to trailer 6 Check for worn or defective magnet 7 Check brake adjustment 8 Check for bent backing plate 9 Check for contaminated brake linings 10 Check brake system wiring 11 Check for worn damaged brake linings 12 Check for weak or broken...

Page 106: ...isuse negligence corrosion erosion normal wear and tear alterations or modifications made to the machine without express written consent of Axxiom Manufacturing Inc 4 Warranty requests must be submitted in writing within thirty 30 days after failure 5 Written authorization to return merchandise under warranty must first be obtained from Axxiom Manufacturing Inc In no case is merchandise to be retu...

Page 107: ...IAL DAMAGES RESULTING FROM THE USE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF ANY WARRANTY OR FOR ANY SPECIAL OR CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING WITHOUT LIMITATIONS DAMAGES FOR ANY LOSS OF GOODWILL WORK STOPPAGE OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES 15 AXXIOM MANUFACTURING INC MAKES NO OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED W...

Page 108: ...he following contact information Answers to most any safety related questions can be found at the OSHA website shown below Phone 1 800 321 6742 Website www osha gov U S Department of Labor Occupational Safety and Health Administration 200 Constitution Avenue Washington D C 20210 National Institute of Occupational Safety and Health NIOSH is a federal agency responsible for conducting research and r...

Page 109: ...ica Content No of Recycles Initial Cost Typical Use Corn Cobs 2 angular 35 45 tan none 4 5 low stripping paint from delicate substrates Sodium Bicarbonate 2 8 crystal 60 white none 4 5 medium cleaning and stripping paint from delicate substrates Walnut Shell 3 angular 45 lt brown none 4 5 low stripping paint from delicate substrates Plastic 3 2 angular 45 60 white none 8 10 medium Paint stripping ...

Page 110: ...8 No 7 7 16 No 8 1 2 CFM 100psi 90 140 200 270 350 AIR HOSE 1 1 4 1 1 4 1 1 2 1 1 2 2 BLAST HOSE 1 1 1 4 1 1 4 1 1 2 1 1 2 ABRASIVE lbs per hr 560 900 1260 1750 2250 13 4 Additional Information on Blasting Productivity Air volume and pressure are very important The blasting production rate will increase with higher blasting pressures and decrease with lower blasting pressures The National Associat...

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