Zero Bnp-160 User manual

NOTICE TO PURCHASERS AND USERS OF OUR

PRODUCTS AND THIS INFORMATIONAL MATERIAL

Clemco proudly provides products for the abrasive blast industry

and is confident that industry professionals will use their knowledge

and expertise for the safe and efficient use of these products.

The products described in this material, and the information

relating to these products, are intended for knowledgeable,

experienced users. It is the responsibility of the user to insure that

proper training of operators has been performed and a safe work

environment is provided.

No representation is intended or made as to: the suitability of the

products described here for any purpose or application, or to the

efficiency, production rate, or useful life of these products. All

estimates regarding production rates or finishes are the

responsibility of the user and must be derived solely from the user’s

experience and expertise, not from information contained in this

material.

It is possible that the products described in this material may be

combined with other products by the user for purposes determined

solely by the user. No representations are intended or made as to

the suitability of or engineering balance of or compliance with

regulations or standard practice of any such combination of products

or components the user may employ.

This equipment is only one component of a cabinet blasting

operation. Other products, such as air compressors, air filters and

receivers, abrasives, equipment for ventilating, dehumidifying, or

other equipment, even if offered by Clemco, may have been

manufactured or supplied by others. The information Clemco

provides is intended to support the products Clemco manufactures.

Users must contact each manufacturer and supplier of products

used in the blast operation for warnings, information, training, and

instruction relating to the proper and safe use of their equipment.

BNP-160 TUMBLE BASKET

SUCTION BLAST CABINET

O. M. 25993

DATE OF ISSUE: 03/13

REVISION: Rev. B, 05/18

One Cable Car Dr.

Washington, MO 63090

Phone (636) 239-4300

Fax (800) 726-7559

Email: [email protected]

www.clemcoindustries.com

BNP-160 TUMBLE BASKET BLAST CABINET Page 1

1.0 INTRODUCTION

1.1 Scope of Manual

1.1.1 These instructions cover setup, operation,

maintenance, troubleshooting, optional accessories, and

replacement parts for the BNP-160 Tumble Basket Blast

Cabinet.

1.1.2 These instructions contain important information

required for safe operation of the cabinet. Before using

this equipment, all personnel associated with the blast

cabinet operation must read this entire manual and all

accessory manuals to become familiar with the

operation, parts, and terminology.

1.2 Safety Alerts

1.2.1 Clemco uses safety alert signal words, based on

ANSI Z535.4-2011, to alert the user of a potentially

hazardous situation that may be encountered while

operating this equipment. ANSI's definitions of the signal

words are as follows:

This is the safety alert symbol. It is used

to alert you to potential physical injury

hazards. Obey all safety messages that

follow this symbol to avoid possible

injury or death.

NOTICE

Notice indicates information that is considered

important, but not hazard-related, if not

avoided, could result in property damage.

CAUTION

Caution indicates a hazardous situation that, if

not avoided, could result in minor or moderate

injury.

WARNING

Warning indicates a hazardous situation that, if

not avoided, could result in death or serious

injury.

DANGER

Danger indicates a hazardous situation that, if

not avoided, will result in death or serious

injury.

1.3 Table of Contents

SUBJECT SECTION LOCATION

INTRODUCTION ........................................................1.0

Scope of Manual .........................................................1.1

Safety Alerts ...............................................................1.2

Table of Contents .......................................................1.3

General Description ....................................................1.4

Theory of Operation ....................................................1.5

Dust Collector .............................................................1.6

Nozzle Options ...........................................................1.7

Tumble Basket Options ..............................................1.8

Media ..........................................................................1.9

Compressed Air Requirements ................................1.10

Electrical Requirements ............................................1.11

INSTALLATION ......................................................... 2.0

General Installation Notes .......................................... 2.1

Connect Compressed Air-Supply Line ....................... 2.2

Ground Cabinet .......................................................... 2.3

Plug Power Cord into 115-VAC Outlet ........................ 2.4

OPERATION .............................................................. 3.0

Control Functions ........................................................ 3.1

Media Loading and Unloading .................................... 3.2

Loading and Unloading Parts ..................................... 3.3

Blasting Operation ...................................................... 3.4

Stop Blasting ............................................................... 3.5

ADJUSTMENTS ......................................................... 4.0

Blasting Pressure ........................................................ 4.1

Pulse Pressure ........................................................... 4.2

Timer, Blast Duration .................................................. 4.3

Door Interlock ............................................................. 4.4

Inlet Damper ............................................................... 4.5

Adjustable Door Slide, Reclaimer................................ 4.6

Dust Collector Pulse, Pulse Valve/Cam Follower ....... 4.7

Preventive Maintenance ........................................... 5.0

Daily Maintenance ...................................................... 5.1

Weekly Maintenance .................................................. 5.2

Monthly Maintenance ................................................. 5.3

Additional Cartridge Pulsing ....................................... 5.4

Service Maintenance ................................................ 6.0

Gun and Nozzle Assembly ......................................... 6.1

Tumble Basket ............................................................ 6.2

Filter Cartridge Replacement ...................................... 6.3

Seasoning Cartridge ................................................... 6.4

Inline Filter, Differential Pressure Gauge ................... 6.5

Tube-Lock Fittings ....................................................... 6.6

Replace Reclaimer Wear Plate .................................. 6.7

BNP-160 TUMBLE BASKET BLAST CABINET Page 2

Troubleshooting ........................................................7.0

Dust Leaking from Cabinet Enclosure .........................7.1

Abnormally High Media Consumption .........................7.2

Reduction in Blast Cleaning Rate ...............................7.3

Plugged Nozzle ...........................................................7.4

Media Bridging ............................................................7.5

Neither Media Nor Air Comes Out the Nozzle

During Blast Cycle ....................................................7.6

Blockage in Media Hose ..............................................7.7

Poor Suction in Media Hose ........................................7.8

Air Only (no media) from Nozzle .................................7.9

Blowback through Media Hose .................................7.10

Media Buildup in Cabinet Hopper, Media Does

Not Convey to Reclaimer .......................................7.11

Static Shocks .............................................................7.12

Dust Leaking from Dust Collector Door......................7.13

Dust Leaking from Exhaust Muffler ...........................7.14

Dust Collector Not Pulsing ........................................7.15

Pulse is Steady Stream of Air

Instead of Quick Pulse ...........................................7.16

Exhauster Not Running .............................................7.17

High Reading on Differential Pressure Gauge ..........7.18

No or Low Reading on Differential Pressure Gauge 7.19

Accessories and Replacement Parts ......................8.0

Optional Accessories ...................................................8.1

Electrical Components ............Refer to Elect. Schematic

Cabinet and Exhauster Assembly ...............................8.2

Basket and Drive Assembly ........................................8.3

Gun, Media Feed, and Plumbing Assembly ................8.4

Reclaimer Assembly ....................................................8.5

Dust Collector Assembly .............................................8.6

Dust Collector Pulse and Plumbing .............................8.7

1.4 General Description

1.4.1 The BNP-160 tumble cabinet blasts small

batches of parts using a fixed nozzle and rotating

basket. Refer to Figure 1 for arrangement and callouts of

primary components. The cabinet consists of three major

segments:

1. Cabinet enclosure

2. Reclaimer

3. Reverse-pulse dust collector

1.4.2 The maximum capacity of the basket is 25 lbs.

1.4.3 The cabinet requires approximately 33 cfm of

compressed air at a maximum of 80 psi.

1.5 Theory of Operation

1.5.1 After parts are loaded into the basket, the air

supply and exhauster are turned ON, and the cabinet door

is closed, the cabinet is then ready for operation by setting

the timer located in the control box atop the cabinet

enclosure. Turn the dial to set the blast duration between

1 minute and 60 minutes. Blasting begins once the timer

is set. Air moving through the gun draws media into the

blast gun mixing chamber. The media mixes with the air

and is propelled out the nozzle. As the basket rotates, the

parts tumble in the blast stream, ensuring that all parts

and surfaces are uniformly blasted. The blast media

flows through the perforated drum and into the cabinet

hopper. These particles are drawn into the reclaimer for

separation. First dust and fines are separated from the

reusable blast media. Reusable media is retained in the

reclaimer hopper for reuse. Then dust and fines are drawn

out of the reclaimer and through the filter cartridge in the

reverse-pulse dust collector. The filter cartridge traps dust

on the outer surface and discharges clean air through the

outlet damper atop the collector. The filter cartridge is

cleaned by a pulse of high-velocity compressed air

expanding against the inner surface of the cartridge at

regular intervals. The expanding air momentarily reverses

airflow through the cartridge to release dust accumulated

on the outer surface. The dust particles fall away from the

cartridge and into the hopper and dust container for

removal. Blasting automatically stops when the timed cycle

is completed.

1.6 Dust Collector

1.6.1 The BNP-160 cartridge dust collector is not

suitable for use in applications that generate dust from

lead coatings, heavy metals, or any other toxic materials.

WARNING

Prolonged exposure to any dust can result in

serious lung disease and death. Short-term

ingestion of toxic materials, such as lead dust

or dust from other heavy metals and

corrosives, can cause serious respiratory injury

or death. This machine is not to be used in

applications which generate dust from lead

coatings, heavy metals or any other toxic

materials. Identify all materials that are to be

removed by blasting and obtain a safety data

sheet (SDS) for the blast media.

1.7 Nozzle Options

1.7.1 Ventilation requirements limit standard cabinets

to No. 5 (5/16" orifice) nozzle and No. 5 (5/32" orifice) air

jet. Unless otherwise specified at the time of order,

cabinets are supplied with a tungsten carbide lined

nozzle. Ceramic nozzle are available but should be

limited to occasional blasting and with mild media. More

durable boron carbide nozzles should be used when

blasting with aggressive media such as those listed in

Section 1.9.4. Nozzle options are shown under Gun,

Media Feed, and Plumbing Assembly in Section 8.4.

BNP-160 TUMBLE BASKET BLAST CABINET Page 3

Figure 1

Some items are removed

or rotated for clarity.

Motor Cove

Adjustable Door Slide

Blast Gun Assembl

Media Hose

Exhauste

Filter Cartridge

Com

ressed Air Filte

Door Interlock Switch

Timer Control

Metering Valve

Blast Gun Air Hose

Media Drain Plug

Exhaust Muffle

Compressed Air Inlet

(Air hose attachment point)

Filter Cartridge Access Door

Differential Pressure Gauge

(For dust collector filter cartridge)

Media Vent Hose

Dust Container

Reclaimer Storage Access Door,

Media Fill Doo

Debris Screen

Inlet-Solenoid Valve

Blast-Pressure Regulator

Grounding Bolt

Pulse Reservoir

Pulse Valve

120-Volt U-Ground Plug

Inlet Damper

Pulse-Pressure Regulator

Reclaimer Inlet

Reclaimer Media Storage Section

Reclaimer Outlet

Motor Mount Bracket

Drain Petcock

BNP-160 TUMBLE BASKET BLAST CABINET Page 4

1.8 Tumble Basket Options

1.8.1 Standard baskets are perforated with 3/16"

holes. An optional basket with 1/16" holes is offered for

use with fine abrasive or applications that produce small

chips or other byproducts that could plug the blast

nozzle. Refer to basket and drive assembly replacement

parts om Section 8.3.

1.9 Media

1.9.1 The BNP-160 utilizes most common reusable

media 60 mesh to 180 mesh that is specifically

manufactured for dry blasting. Media finer than those

recommended may carry over to the dust collector.

Media coarser than those recommended may not

convey through the media hose or recovery hose.

1.9.2 Steel: Steel grit 50 mesh to 120 grit or S70 to

S170 shot may be used.

1.9.3 Sand and slag media These are not suitable for

cabinet use. Sand should NEVER be used for abrasive

blasting because of the respiratory hazards associated

with media containing free silica. Slags are not

recommended because they rapidly break down and are

not recyclable.

1.9.4 Aluminum Oxide, Silicon Carbide, and

Garnet: These are the most aggressive of the commonly

used media. Aggressive media such as these between

60 mesh and 180 mesh may be used, but the service life

of any components exposed to the media will be

reduced. To avoid unscheduled downtime and maximize

cabinet life, periodically inspect all parts of the cabinet,

basket, nozzle, and hoses, that come in contact with the

media. Boron carbide lined nozzles are recommended

when using aggressive media.

1.9.5 Glass Bead Recommended range is #6 thru

#13: Most beads are treated to ensure free-flow

operation even under moderately high humidity

conditions. Glass beads subjected to excessive moisture

may be reused after thorough drying and breaking up of

any clumps.

1.9.6 Fine-Mesh Media: In most cases media finer

than 180 will carry over to the dust collector.

1.9.7 Lightweight Media: Plastic and similar

lightweight and/or nonaggressive media are generally

not recommended for suction-style cabinets because the

lower blast velocity of suction blasting combined with the

softer and lighter weight media do not provide the media

impact for productive blasting.

1.10 Compressed Air Requirements

1.10.1 The cabinet requires approximately 33 cfm of

compressed air at a maximum of 80 psi.

1.10.2 The filter at the air inlet connection reduces

condensed water from the compressed air. Its use is

especially important in areas of high humidity, or when

fine-mesh media are used. Moisture causes media to

clot and inhibits free flow through the feed assembly. If

the filter does not remove enough moisture to keep

media dry and flowing, it may be necessary to install an

air dryer or aftercooler in the air-supply line.

1.11 Electrical Requirements

1.11.1 The system requires 115 VAC, 1 PH, 60 Hz,

with 15 amps service. A 7-foot power cord is supplied.

No additional wiring is required.

WARNING

Do not use electrical adaptors that eliminate the

ground prong on 115-volt plugs. Doing so can

cause injury from electric shock and damage

equipment.

2.0 INSTALLATION

2.1 General Installation Notes

2.1.1 Place the cabinet in a convenient location where

compressed air and electrical service are available.

Allow full access to the doors and service areas.

2.2 Connect Compressed Air-Supply Line

WARNING

Failure to observe the following before

connecting the equipment to the compressed

air source could cause serious injury or death

from the sudden release of compressed air:

Lockout and tagout the compressed air

supply.

Bleed the compressed air-supply line.

2.2.1 Refer to Figure 2 and apply thread sealant to the

male threads of an air fitting that is compatible with the

air-supply hose fitting, and install it onto the 1/2" NPT

BNP-160 TUMBLE BASKET BLAST CABINET Page 5

inlet solenoid located on the side of the cabinet. The

style of connection shown in Figure 2 is for reference

only. The air line may also be hard piped.

2.2.2 Connect a 1/2" ID or larger air line from the air

source to the air fitting, as shown in Figure 2.

WARNING

To avoid the risk of injury from compressed air,

install an isolation valve and bleed-off valve

where the air supply is tapped into the

compressed air source. This enables

depressurization of the compressed-air line

before performing maintenance.

Figure 2

WARNING

Hose disconnection while under pressure could

cause serious injury or death. Use safety lock

pins or safety wire to lock twist-on couplings

together and prevent accidental separation, and

also use safety cables to prevent hose from

whipping should separation occur. Safety lock

pins and safety cables are listed in Section 8.1:

Optional Accessories.

2.3 Ground Cabinet

2.3.1 To prevent static electricity buildup, attach an

external grounded wire from an earth ground to the

grounding bolt on the rear of the cabinet.

2.4 Plug the cabinet power cord into a grounded,

115-volt outlet.

WARNING

Do not use electrical adaptors that eliminate the

ground prong on 115-volt plugs. Doing so can

cause injury from electric shock and damage

equipment.

3.0 OPERATION

3.1 Control Functions

3.1.1 Timer: Sets duration of the blast cycle up to 60

minutes. Blasting begins as soon as the timer is set.

Blasting automatically stops when the timed cycle is

complete.

3.1.2 Door Interlock: When the door is open, the

blast gun is disengaged, preventing blasting.

3.2 Media Loading and Unloading

3.2.1 Media Loading: With the timer off, add clean

dry media by pouring it through the reclaimer access

door. Do not fill above the storage section’s cone.

3.2.2 Media Unloading: To empty the cabinet and

reclaimer of spent media, allow all media to be

recovered from the cabinet, turn off the exhauster, and

place an empty container under the media-metering

valve located under the reclaimer storage section.

Unscrew the plastic plug, permitting media to flow into

the container. If media does not flow, it has caked. Open

the fill door and stir media until it starts to flow. Replace

the drain plug when the storage section is empty.

3.2.3 When changing media type, use a vacuum and

thoroughly purge the cabinet of media, especially when

changing from coarse media to fine or when changing

from hard media to soft.

3.3 Loading and Unloading Parts

3.3.1 Parts must be free of oil, water, grease, or other

contaminants that will cause media to clump or

contaminate parts.

3.3.2 Unlatch and open the front door and load parts

directly into the tumble basket. Do not overload the

basket; maximum load should not exceed 25 lb or the

bottom edge of the retainer, as shown in Figure 3.

Safety Lock Pin

Safet

Cable

Air-Supply Hose

Air Fitting

Inlet Solenoid

BNP-160 TUMBLE BASKET BLAST CABINET Page 6

Figure 3

3.3.3 Do not underload with parts; underloading will

result in rapid wear to the tumble basket. When blasting

small loads, to prevent the blast stream from blasting the

basket, add filler material (dunnage), as shown in Figure

4, such as an abrasive-resistant tumble media that is

compatible with the parts being blasted.

Figure 4

3.3.4 Close door and latch securely.

3.4 Blasting Operation

WARNING

To avoid hazardous dust leakage and

equipment malfunction:

Keep door closed during blasting.

Stop blasting immediately if dust leaks

are detected.

3.4.1 Slowly open the air valve on the air-supply hose

to the cabinet. Check for air leaks on the initial start up,

and periodically thereafter.

3.4.2 Adjust the blast-pressure regulator located on

the side of the cabinet to the required blast pressure per

Section 4.1.

3.4.3 Adjust the pulse-pressure regulator located on

the side of the cabinet to the required pulse pressure per

Section 4.2.

NOTICE

Do not pulse new dust collectors or

replacement cartridges until the cartridge is

properly seasoned. Refer to Section 6.4.

Pulsing unseasoned cartridges can cause

premature cartridge failure or decrease the

efficiency of the dust collector.

3.4.4 Load media and parts. Note load limit in Figure 3.

3.4.5 Close the cabinet door. Make sure the door is

latched securely, or door interlock system will prevent

blasting.

3.4.6 Start the blast cycle by turning the timer for the for

the blast duration, between 1 and 60 minutes. Blasting

begins as soon as the timer is set.

WARNING

Shut down the cabinet immediately if dust

discharges from the cabinet or dust collector.

Prolonged breathing of any dust can result in

serious lung disease. Short-term ingestion of

toxic dust such as lead poses an immediate

danger to health. Toxicity and health risk vary

with type of media and dust generated by

blasting. Identify all material being removed by

blasting and obtain a safety data sheet (SDS)

for the blast media.

3.5 Stop Blasting

3.5.1 Blasting, basket rotation, and the exhauster stop

when the timer cycle is completed.

3.5.2 Open the door only enough to disengage the

door interlock, and turn the timer ON to start the

exhauster. Let it run for several seconds to clear

airborne dust, then turn the switch OFF.

Load Limit

Do not load parts

above bottom edge

of retainer.

Retainer

Tumble Basket

Parts

Filler Material

Parts

BNP-160 TUMBLE BASKET BLAST CABINET Page 7

3.5.3 Remove parts and check blast coverage.

3.5.4 Reload additional parts, or when finished

blasting, shut off the air-supply valve and drain the air

filter and dust collector pulse reservoir.

4.0 ADJUSTMENTS

4.1 Blasting Pressure ‒Figure 5

4.1.1 The blast-pressure regulator located in the

piping on the side of the cabinet is used to adjust

blasting pressure to suit the application. The maximum

recommended pressure is 80 psi. Lower pressure may

be used for delicate work. Higher pressure may cause

dust or media to escape from the cabinet.

4.1.2 To adjust, unlock the knob by pulling it out and

turn it clockwise to increase pressure or counter-

clockwise to decrease pressure. Pressure will usually

drop from closed-line pressure when blasting begins.

Once operating pressure is set, push the knob in to lock

it and maintain the setting.

Figure 5

4.2 Pulse Pressure ‒Figure 6

NOTICE

Do not pulse new dust collectors or

replacement cartridges until the cartridge is

properly seasoned. Refer to Section 6.4.

Pulsing unseasoned cartridges can cause

premature cartridge failure or decrease the

efficiency of dust collector.

4.2.1 The pulse-pressure regulator, located in the

piping below the blast-pressure regulator, is used to

adjust pressure of the dust collector pulse. After the

cartridge is seasoned, set the pulse pressure to 40 psi.

When differential pressure reaches 8 inches (as noted

on the differential pressure gauge), do additional pulsing

as noted in Section 5.4 and increase pulse pressure by

10 psi. Continue to do additional pulsing and increase

pressure by 10 psi when differential pressure reaches 8

inches until the maximum of 80 psi is reached. Replace

the cartridge when 80 psi does not lower pressure below

8 inches or sooner if media recovery is impaired.

4.2.2 To adjust, unlock the knob by pulling it out, as

shown in Figure 6 and turn it clockwise to increase

pressure or counterclockwise to decrease pressure.

Once pressure is set, push the knob in to lock it and

maintain the setting.

Figure 6

4.3 Timer, Blast Duration

4.3.1 Turn the timer dial to set the timer for the

duration of the blast cycle. Blasting begins when the

timer is set and automatically stops when the timed cycle

ends. Trial and error will determine the timer setting for

the most favorable results. After the part is correctly

processed, make a note of the total blast time for future

runs of similar parts.

Blast-Pressure Regulator

Turn counterclockwise

to decrease pressure.

Turn clockwise to

increase pressure.

Push Knob in to lock it.

Pull knob out to unlock

and ad

ust

ressure.

Blast-Pressure

Regulator Knob

Turn counterclockwise

to decrease pressure.

Turn clockwise to

increase pressure.

Push Knob

in to lock it.

Pull knob out to

unlock and

adjust pressure.

BNP-160 TUMBLE BASKET BLAST CABINET Page 8

4.4 Door Interlock, Refer to Figure 7

WARNING

Never attempt to override the interlock system.

Doing so can result in injury from unexpected

blasting.

Figure 7

4.4.1 The door interlock disables the blasting control

circuit when the door is open. To enable blasting, the

door interlock switch must be engaged when the door is

closed. The interlock is set at the factory and does not

usually require field adjustment unless parts are

replaced. When adjustment is required, proceed as

follows:

4.4.1.1 Close cabinet door.

4.4.1.2 Loosen the adjusting screw nut.

4.4.1.3 Center the adjusting screw on the switch and

turn it in or out as required to engage the switch without

applying excessive pressure. Tighten the adjusting

screw nut to secure.

4.4.1.4 Test the operation with the door open only

enough to disengage the interlock switch, and then

again with the door closed. The interlock should stop the

blasting when the door is opened and permit blasting

when the door is closed.

4.5 Inlet Damper ‒Figure 8

4.5.1 Operate with the damper fully open. A closed or

partially closed damper will reduce air movement

through the cabinet and can cause dust leaks from

cabinet or media buildup in cabinet.

Figure 8

4.6 Adjustable Door Slide, Reclaimer Storage

Section ‒Figure 9

4.6.1 The door slide is adjustable from fully closed to

various degrees of open. The adjustment controls the

amount of fines that are retained or removed from

recycled media. When the slide is closed, no ambient air

enters the reclaimer and finer media is retained. As the

slide is gradually opened ambient air is drawn in,

drawing out fines into the dust collector. The further the

slide is opened, the more air is drawn in, which pulls out

larger particles of spent media.

4.6.2 Begin with the slide closed.

Figure 9

4.6.3 To Remove More Fines: (Too much dust in

media.) Loosen the wing nuts and lower the door by no

more than 1/16" increments. It may take a few cycles to

remove the fines; allow the media to go through several

cycles before further adjustment. Lower the door to

remove more fines; raise the door to retain more media.

Door Slide

Opening for

ambient air flow

Wing Nut

Interlock Switch

Cabinet Door

Adjusting Screw

(Adjust the screw to engage the

switch when door is closed.)

Nut

Inlet Damper’

(Shown fully open.)

BNP-160 TUMBLE BASKET BLAST CABINET Page 9

The following are examples of the door slide setting

during factory tests:

1) #13 glass beads – slotted door shut

2) #8 glass beads – slotted door open about 3/16"

3) #11 glass beads – slotted door open about 3/32"

4) 180 mesh aluminum oxide – slotted door open

about 3/32"

5) 80 mesh aluminum oxide – slotted door open about

1/8"

4.6.4 To Remove Less Fines: (Too much good

media carried over to the dust collector.) Loosen the

wing nuts and raise the door by no more than 1/16"

increments.

4.7 Dust Collector Pulse,

Pulse Valve/Cam Follower ‒Figure 10

4.7.1 The pulse activating mechanism is located

within the motor mount bracket.

4.7.2 The dust collector pulses once with each

revolution of the basket. When the screw on the split

collar rotates over the cam follower, it pushes in the

plunger on the 3-way pulse valve and triggers the pulse.

4.7.3 Loosen the collar setscrews and rotate the split

collar so the cam screw is riding on the cam follower.

Tighten the setscrews to secure the collar.

Some items are removed for clarity.

Figure 10

4.7.4 Loosen the mounting bracket screws and adjust

the height so the cam follower depresses the plunger on

the 3-way pulse valve. Snug the screws to hold the

bracket in place.

4.7.5 Set the blast-pressure regulator to zero psi and

set the pulse-pressure regulator to 40 psi.

4.7.6 Turn the timer dial to start the basket rotation.

4.7.7 The collector should pulse each time the cam

screw rides onto the cam follower and stop when the

screw rides off the follower.

4.7.8 Adjust the mounting bracket up or down until the

pulse functions accordingly. Tighten the mounting

screws to secure.

5.0 PREVENTIVE MAINTENANCE

WARNING

This machine is not to be used for applications

that generate dust from lead coatings, heavy

metals, or any other toxic materials. Failure to

wear approved respirators and eye protection

when servicing dust-laden areas of the cabinet

and dust collector, and when emptying the

container, can result in serious eye irritation and

lung disease. Toxicity and health risk vary with

type of media and dust generated by blasting.

The respirator must be approved for the type of

dust generated. Identify all material being

removed by blasting and obtain a safety data

sheet (SDS) for the blast media.

To avoid unscheduled downtime, establish a weekly

inspection schedule. Inspect all parts subjected to media

contact, including; nozzle, media hose, flex hose, wear

plate, and all items covered in this section.

5.1 Daily Maintenance

5.1.1 Check media level and condition of media: Refill

or change media as necessary.

5.1.2 Check reclaimer screen for debris: The screen is

accessible through the reclaimer door. With the

exhauster OFF, remove the screen and empty it daily

and when loading media. Empty the screen more often if

part blasted causes excessive debris. Do not operate the

machine without the screen in place, oversized

byproduct from blasting could plug the nozzle.

5.1.3 Drain compressed air filter ‒Figure 11: The

cabinet is equipped with a manual-drain air filter. Open

the drain at least daily; if water is present, open

periodically during operation. Moist air inhibits the flow of

media; if the filter does not remove enough moisture to

Screws

Setscrews

Mounting Bracket

Motor Mount

(Shown for reference.)

Basket Drive Shaft

(Shown for reference.)

Split Colla

3-Wa

Pulse Valve

Cam Scre

Cam Followe

BNP-160 TUMBLE BASKET BLAST CABINET Page 10

keep media dry and flowing, it may be necessary to

install an air dryer or aftercooler in the air-supply line.

Figure 11

5.1.4 Drain pulse reservoir ‒Figure 12. Open the

petcock to drain water from the pulse reservoir after

each use. If water is present, open periodically during

operation.

Figure 12

5.1.5 Inspect Dust Level and Empty Dust Container

NOTICE

Inspect dust level in the dust container each

time the collector is shut off and when adding

new media to the cabinet. Empty the dust

container when it is no more than half-full.

Failure to monitor the dust level will overfill the

collector, requiring extensive cleaning.

NOTE: Blast media is usually nontoxic, however,

materials removed by the blast process may be

toxic. Check with local authorities for disposal

restrictions.

5.1.5.1 Empty dust level and empty the dust container

regularly. Start by checking the container at least daily

and when adding media, then adjust frequency based on

usage, contamination, and friability of the media.

5.1.5.2 Turn off the exhauster and release the lid lock

ring from the dust container, as shown in Figure 13.

5.1.5.3 Pry off the lid from the container (the lid's flexible

inlet hose allows easy removal) and remove the

container.

Figure 13

5.1.5.4 Tie off or otherwise seal the top of the liner and

remove it from the container. Dispose of the sealed liner

into a suitable disposal receptacle.

5.1.5.5 Place a new liner inside the container and drape

it over the top edge. Reattach the container to the lid and

latch the lock ring, making sure the lid and clamp are

secure. Replacement liners are shown in Section 8.6,

Figure 23, Item 28.

Pulse Reservoi

Drain Petcock

Inlet Solenoid

Compressed Air Filte

Manual Drain

Drum Liner

Latch

Latch Catch

Swing the catch

up to unlock the

lock-ring latch.

Pull the latch

away from the

ring and remove

the ring.

BNP-160 TUMBLE BASKET BLAST CABINET Page 11

5.2 Weekly Maintenance

5.2.1 Inspect nozzles and gun bodies for wear as

noted in Section 6.1, Replace nozzle when orifice

diameter is worn 1/16" larger than original size or when

suction diminishes noticeably.

5.2.2 During operation, inspect cabinet door seals for

media leaks.

5.2.3 Inspect flex hoses for wear.

5.2.4 Inspect the media hose for thin spots by

pinching it every 6 to 12 inches. Replace the hose when

it becomes soft.

5.3 Monthly Maintenance

5.3.1 Inspect reclaimer wear plate for wear. Replace

as necessary.

5.3.2 Inspect reclaimer door gasket for wear or

damage.

5.3.3 Inspect the tumble basket’s bottom liner for

wear. Replace the liner per Section 6.2 as soon as the

liner is worn thin and before wearing through to the

bottom plate.

5.4 Additional Cartridge Pulsing

5.4.1 The cartridge is pulsed with each revolution of

the basket. Additional pulsing should be performed as

noted below before adjusting the pulse pressure:

5.4.1.1 Turn blast pressure to 0 psi.

5.4.1.2 Turn exhauster ON.

5.4.1.3 Set timer to five minutes.

5.4.1.4 After the five minute cycle is complete, check

the differential pressure gauge. If differential pressure

stays at around 8 inches, increase pulse pressure by 10

psi increments as noted on Section 4.2.

5.4.1.5 Repeat the process once or twice.

6.0 SERVICE MAINTENANCE

WARNING

This machine is not to be used for applications

that generate dust from lead coatings, heavy

metals, or any other toxic materials. Failure to

wear approved respirators and eye protection

when servicing dust-laden areas of the cabinet

and when emptying the dust container can

result in serious eye irritation and lung disease.

Toxicity and health risk vary with type of media

and dust generated by blasting. The respirator

must be approved for the type of dust

generated. Identify all material being removed

by blasting and obtain a safety data sheet (SDS)

for the blast media.

6.1 Gun and Nozzle Assembly

6.1.1 Open the cabinet door, unscrew the holding nut

from the gun end, and pull the nozzle from the gun.

6.1.2 Inspect the gun body, nozzle, orifice, and 1/4"

NPT nipple for wear. Replace any that are worn or

damaged. Replace the nozzle when its orifice diameter

has increased to 3/8" (increased by 1/16" larger than

when new), or when suction diminishes noticeably.

6.1.3 When installing the nozzle, insert the tapered

end into the gun placing the tapered end toward the jet.

Screw the holding nut onto the gun.

6.2 Tumble Basket

6.2.1 Periodically inspect the basket and bottom liner

for wear.

6.2.2 The bottom liner is held to the bottom of the

basket by the two support ribs; remove the liner by

peeling it from the bottom and from under the ribs.

6.2.3 Replace the liner in reverse order, tucking the

edge under the support ribs.

6.2.4 Replace the basket as soon as it is worn thin.

BNP-160 TUMBLE BASKET BLAST CABINET Page 12

6.3 Filter Cartridge Replacement

Figures 14 and 15

WARNING

Failure to wear approved respirators and eye

protection when servicing dust-laden areas of

the cabinet and dust collector, and when

changing the filter cartridge, can result in

serious eye irritation and lung disease or death.

6.3.1 Close the air-supply valve and bleed all air from

the pulse reservoir.

6.3.2 Remove the four wing nuts and washers

securing the cover plate and remove the cover plate.

Figure 14

6.3.3 Remove the nut, lock washer, flat washer, and

rubber gasket from the cartridge support, as shown in

Figure 15. Remove the cartridge through the opening,

sliding it off the support. NOTE: Contain dust by

sliding a durable plastic bag over the cartridge as it

is removed.

Figure 15

6.3.4 After the cartridge is removed, clean the inside

of the collector to remove loose dust or hardened dust

clumps, particularly from the cartridge sealing surface

(front side of the cartridge sheet).

6.3.5 A new rubber gasket comes with the new

cartridge. Use the new gasket, reuse the fasters, and

install the cartridge in reverse order.

6.3.6 Inspect the cover gasket for any condition that

will prevent the gasket from sealing. Replace the gasket

if necessary.

6.3.7 Install the cover plate and secure.

6.3.8 Season cartridge per Section 6.4.

6.4 Seasoning Cartridge

6.4.1 New cartridge must be seasoned. Cartridges are

seasoned by not pulsing them until a dust cake develops

on the filter media.

6.4.2 To prevent cartridge pulsing, turn the pulse

regulator off (to 0 psi).

6.4.3 Operate the cabinet without pulsing until the

differential pressure gauge reaches 2 inches. At that time,

turn the pulse regulator to 40 psi to start the pulsing cycle.

Refer to Section 4.2 to adjust pulse pressure.

6.5 Inline Filter, Differential Pressure Gauge

Figure 16

6.5.1 Periodically inspect the inline filter for dust. Dust

collects on the outer surface of the element.

6.5.2 To remove the dust and clean the element, turn

the inlet end cap toward O, as stamped on the cap, and

then pull the cap from the clear housing. NOTE: Only

the inlet cap opens. Refer to Section 6.6 if the tubing

needs to be removed.

Figure 16

Filter Cartridge

Flat Washer

Wing Nut

Cover Plate

Lock Washer

Gasket

Dust Collector

Rubber Gasket

Filter Cartridge

Nut

Lock Washer

Flat Washer

Some items removed

for clarity.

Differential Pressure Gauge

Lo (-) Pressure Port

Filter Element

Hi (+) Pressure Port

Turn toward

L to lock.

Turn toward

O to o

en.

Directional arrow points

toward differential pressure

gauge.

BNP-160 TUMBLE BASKET BLAST CABINET Page 13

6.5.3 Remove the element and empty dust from the

housing.

6.5.4 Shake the cap and tubing to see if dust is in the

tubing. If dust is present, remove the tubing from the cap

and shake the tubing until all dust is removed.

NOTICE

If the inline filter is removed from the tubing,

reinstall it with the directional arrow pointing

toward the Hi (+) pressure port on the differential

pressure gauge, as shown in Figure 16.

6.5.5 Before attaching the inlet cap, be sure the filter

is correctly positioned. Align the tabs on the cap with the

recesses on the housing. Make sure the end of the cap

enters the ID of the element as it is pushed into position.

Turn the cap toward L to lock it in place.

6.6 Tube-Lock Fittings – Figure 17

WARNING

Failure to observe the following procedure

before performing any maintenance can cause

injury from the sudden release of trapped

compressed air.

Lock out and tag out the compressed air

supply.

Bleed all compressed air-supply lines.

6.6.1 To remove the tubing, push the retaining collar

toward the fitting, releasing the tubing so it can be easily

removed by pulling it out. Do not force it; only a slight

pull on the tubing is required if the collar is pushed in

correctly.

Figure 17

6.6.2 Reconnect the tubing by inserting it into the

retaining collar until it seats. Tug on the tubing to make

sure it is secured.

6.7 Replace Reclaimer Wear Plate – Figure 18

6.7.1 Remove the fasteners holding the reclaimer top

to the body and remove the top.

6.7.2 The gasket should adhere to the reclaimer when

the top is removed. Inspect the gasket and replace it if

damaged.

6.7.3 Remove the screws that hold the wear plate to

the body and remove the old wear plate.

6.7.4 Press or clamp the new wear plate into position

and use self-drilling screws inserting through the existing

screw holes to secure the wear plate.

6.7.5 Replace the top and secure with fasteners.

Figure 18

Retaining Collar

Push collar in to release tubing.

Pull tubing straight out.

To reconnect the tubing, push it into the

fitting until it bottoms out. Pull on the

tubing to make sure it is securely fastened.

Wear Plate

Gasket

Self-Drilling Screws

Reclaimer Top

Clamp

Shown for reference.

BNP-160 TUMBLE BASKET BLAST CABINET Page 14

7.0 TROUBLESHOOTING

WARNING

To avoid serious injury from the sudden release

of trapped compressed air, observe the

following when troubleshooting:

Turn off the air, and lockout and tagout the

air supply.

Bleed all compressed air supply lines.

7.1 Dust Leaking from the Cabinet Enclosure

7.1.1 Dirty filter cartridge reducing air flow through

cabinet. Check differential pressure gauge. Refer to

Sections 4.2 to adjust pulse pressure and Section 5.4 for

additional pulsing.

7.1.2 Damaged door gaskets. Inspect and replace

damaged gaskets.

7.1.3 Blast pressure too high. Maximum blast

pressure is 80 psi.

7.1.4 Blockage in flex hose between cabinet sump

and reclaimer inlet. Inspect hose for blockage.

7.1.5 Exhauster not operating. Make sure exhauster

motor is in operation. If it is not, have the motor and

circuit checked by a qualified electrician.

7.1.6 Inlet damper closed or partially closed. Damper

should be fully open.

7.2 Abnormally High Media Consumption

7.2.1 Door on reclaimer open or improper fit, or worn

door gasket. Air entering the reclaimer at this point will

cause media to be carried into the dust collector. DO

NOT operate unless all doors are closed.

7.2.2 Reclaimer slide door open. Refer to Section 4.6

to adjust slide door.

7.2.3 Media may be too fine or worn-out. Refer to

Section 1.9 for recommended media size.

7.2.4 Using friable media that rapidly breaks down.

7.2.5 Nozzle pressure too high for the media, causing

media to break down.

7.3 Reduction in Blast Cleaning Rate

7.3.1 Low media level reducing media flow. Check

media level; add or replace media as needed.

7.3.2 Reduced air pressure, which could be caused by

a malfunctioning pressure regulator, a dirty filter element

in the air filter, a partially closed air valve, a leaking air

line, or other air tools in use.

7.3.3 Blockage in media hose or gun. Refer to Section

7.4 and 7.7.

7.3.4 Kink or blockage in vent hose between metering

valve and reclaimer. Make sure hose is clear.

7.3.5 Worn gun parts such as nozzle or air jet. Inspect

and replace all worn parts.

7.3.6 Worn media hose. Check hose for leaks and soft

spots. Replace worn or damaged hose.

7.3.7 Moist media. Frequent bridges or blockage in

the area of the metering valve can be caused by

moisture. Refer to Section 7.6.

7.4 Plugged Nozzle

7.4.1 Remove nozzle and check for blockage from

foreign material. If the standard tumble basket allows

large particles to pass and block the nozzle, use the

optional basket with 1/16" diameter holes. Refer to

Section 8.1. If nozzle is blocked by hardened or caked

media, moisture is present. Refer to Section 7.6

7.5 Media Bridging

7.5.1 Frequent bridging or blockage in the media-

metering valve can be caused by damp media. Media

becomes damp by blasting parts that are slightly oily

because of moisture in the compressed-air line or from

absorption from ambient air.

7.5.2 To avoid contaminating media from the

workpiece, all parts put into the cabinet should be clean

and dry. If parts are oily or greasy, degrease and dry

them prior to blasting.

7.5.3 Moist compressed air may be due to a faulty

compressor that overheats, or pumps oil or moisture into

the air line; too long of an air line permitting moisture to

condense on the inside; and from high humidity. Drain

BNP-160 TUMBLE BASKET BLAST CABINET Page 15

the air filter and receiver tank regularly. If the problem

persists, it may be necessary to change media more

often, or install an aftercooler or air dryer.

7.5.4 Absorption. Some media tends to absorb

moisture from the air, especially fine-mesh media in high

humidity-areas. Empty the media and store it in an

airtight container when cabinet is not in use.

7.5.5 Using lightweight or low-density media as noted

in Section 1.9.7.

7.6 Neither Media Nor Air Comes Out the Nozzle

During the Blast Cycle.

7.6.1 Door interlocks not engaging. Check adjustment

per Section 4.4.

7.6.2 Pressure regulator may be turned down or off.

Check pressure on regulator gauge.

7.6.3 Make sure that the air compressor is on and air-

supply valves are open.

7.6.4 Plugged nozzle. Refer to Section 7.4

7.6.5 Timer or inlet-solenoid valve malfunction.

Inspect by qualified electrician.

7.7 Blockage in Media Hose

7.7.1 Wet or damp media. Refer to Section 7.6.

7.7.2 Kink or blockage in vent hose between metering

valve and reclaimer. Make sure hose is clear.

7.8 Poor Suction in Media Hose

7.8.1 Nozzle is worn. Replace if worn 1/16" or more.

7.8.2 Blockage in media hose or nozzle. Refer to

Sections 7.4 and 7.5.

7.8.3 Air pressure too high. Reduce pressure to 80 psi

maximum.

7.9 Air Only (no media) from Nozzle

7.9.1 Nozzle pressure too high for the media, causing

media to break down.

7.9.2 Reduced air pressure decreases vacuum in

media hose, which could be caused by a malfunctioning

pressure regulator, a dirty filter element in the air filter, a

partially closed air valve, a leaking air line, other air tools

in use, or regulator pressure set too low.

7.9.3 Blockage in media hose or gun. Refer to Section

7.4 and 7.7.

7.9.4 Worn gun parts such as nozzle or air jet. Inspect

and replace all worn parts.

7.9.5 Worn media hose. Check hose for leaks and soft

spots. Replace worn or damaged hose.

7.9.6 Moist media. Frequent bridges or blockage in

the area of the metering valve can be caused by

moisture. Refer to Section 7.5.

7.10 Blowback Through Media Hose

7.10.1 Blockage in nozzle. Remove the nozzle and

check for blockage.

7.10.2 Air jet washer (Figure 21, Item 5) not tightly

sealed against air jet. Tighten the bushing into the gun

body.

7.10.3 Air pressure too high. Reduce pressure to 80 psi

maximum.

7.11 Media Buildup in Cabinet Hopper; Media

Does Not Convey to Reclaimer

7.11.1 Inlet damper closed or partially closed restricting

air movement through cabinet. Open damper per

Section 4.5.

7.11.2 Dirty filter cartridge reducing air flow through

cabinet. Inspect differential pressure gauge. Refer to

Sections 4.2 and 5.4.

7.11.3 Damaged door gaskets. Inspect and replace

damaged gaskets.

7.11.4 Blockage in flex hose between cabinet hopper

and reclaimer inlet. Inspect hose for blockage.

BNP-160 TUMBLE BASKET BLAST CABINET Page 16

7.11.5 Hole worn in flex hose between cabinet hopper

and reclaimer inlet. Replace hose as needed.

7.11.6 Reclaimer door open. DO NOT operate unless

door is closed.

7.11.7 Exhauster not operating. Make sure exhauster

motor is in operation. If it is not, have the motor and

circuit checked by a qualified electrician.

7.12 Static Shocks

7.12.1 Cabinet not grounded. Abrasive blasting

generates static electricity. The cabinet must be

grounded to prevent static buildup. Refer to Section 2.3.

7.13 Dust Leaking from Dust Collector Door

7.13.1 Dust collector door loose. Tighten door wing

nuts.

7.13.2 Inspect gasket on dust collector door. Replace if

damaged

7.14 Dust Leaking from Exhaust Muffler

7.14.1 Damaged or loose cartridge. Inspect filter

cartridge.

7.14.2 Cartridge not seasoned. Refer to Section 6.4 to

season cartridge.

7.15 Dust Collector Not Pulsing

7.15.1 Check the pulse-pressure regulator. Make sure

it is not too low or turned down to OFF position. Adjust

pulse pressure per Section 4.2. If regulator is correctly

adjusted and pressure on gauge remains low, check the

compressed air supply for a restriction such as a partially

closed supply valve.

7.15.2 Make sure the pulse valve and cam follower are

operational. Refer to Section 4.7

7.15.3 Inspect the diaphragm in diaphragm pulse

valves for damage.

7.15.4 Check for blockage in the tubing between the

diaphragm valve and 3-way pulse valve.

7.16 Pulse Is a Steady Stream of Air Instead of a

Quick Pulse

7.16.1 Check for a leak or split in the tubing between

the diaphragm valve and 3-way pulse valve.

7.16.2 3-way pulse valve or cam follower remains in

open position. Refer to Section 4.7.

7.17 Exhauster Not Running

7.17.1 Motor faulty. Have a qualified electrician check for

electrical malfunction.

7.17.2 Timer or inlet-solenoid valve malfunctioning.

Have a qualified electrician check for electrical

malfunction.

7.18 High Reading on Differential Pressure Gauge

7.18.1 Valves may not be pulsing properly. Refer to

Section 7.15.

7.18.2 The differential pressure gauge lines or inline

dust filter may be plugged with dust. Inspect and clean

per Section 6.5.

7.18.3 Pulse pressure may need to be increased. Refer

to Sections 4.2 and 5.4.

7.18.4 The filter cartridge may need to be replaced.

Refer to Sections 4.2, 5.4, and 6.4.

7.19 No or Low Reading on Differential Pressure

Gauge

7.19.1 Make sure low and high-pressure lines are not

reversed. Refer to Section 6.5, Figure 16.

BNP-160 TUMBLE BASKET BLAST CABINET Page 17

8.0 ACCESSORIES AND REPLACEMENT PARTS

(-) BNP-160 Tumble Blast Cabinet ................... 25861

8.1 Optional Accessories

Tumble basket w/ 1/16" holes ................................ 18254

Lock pins (pkg. of 25)

for twist-on air hose couplings ......................... 11203

Safety cable, for 1/2" to 1-1/4" OD hose ................ 15012

8.2 Cabinet and Exhauster Assembly ‒Figure 19

Item Description Stock No.

1. Gasket, door, 5/8" x 1-1/4" adhesive backed

4-feet required .......................................... 27464

2. Latch, spring, each ....................................... 12263

3. Gasket, 3/32" x 3/4" adhesive backed

specify feet required ................................. 00192

4. Adaptor, sump pipe, 2-1/4" flex .................... 25844

5. Clamp, 2-1/2" ............................................... 02817

6. Hose, 2-1/4" light lined flex, 3-ft required ..... 24977

7. Switch, push button (door interlock) ............ 12119

8. Dust seal, push button switch ...................... 25872

9. Timer, 60 minute .......................................... 12180

10. Gasket, gun mount back plate ..................... 11782

11. Plate, gun mount back ................................. 12811

12. Connector, strain relief, aluminum

0.50″- 0.625″cord .................................... 11629

13. Strain relief, Nylon snap-in............................ 13936

14. Damper, inlet ................................................ 25860

15. Cord w/plug, 120-v ....................................... 11669

16. Screw, self-drill ............................................. 12974

17. Connector, strain relief, aluminum

0.25″- 0.375″cord .................................... 11631

Some items removed or rotated for clarity.

Figure 19

7, 8

To reclaimer inlet, refer

to Section 8.5.

BNP-160 TUMBLE BASKET BLAST CABINET Page 18

8.3 Basket and Drive Assembly ‒Figure 20

Item Description Stock No.

1. Basket assembly, includes item 19

Standard, with 3/16" diameter holes ..........12230

Optional, with 1/16" diameter holes............18254

2. Shaft, basket drive, includes items 13 & 14 ..25732

3. Grommet, rubber ..........................................11798

4. Bearing, 3/4" bore, each ................................11521

5. Bracket, drive motor mount ...........................25842

6. Motor, speed reduced, 3/8" shaft ..................25864

7. Bolt and nut, 1/4" NC x 3/4" elevator ............03119

8. Washer, #10 flat (between motor and brkt) ...03303

9. Cap screw, 1/4" NC x 1" ...............................03053

10. Washer 1/4" lock ...........................................03117

11. Nut, 1/4" NC hex ...........................................03111

12. Screw, #10 x 1/2" truss .................................12062

13. Roll pin, 1/4" x 1" ..........................................12815

14. Screw, 1/4" NC x 3/16" set, each (2-req.) ....25871

15. Cover, motor .................................................25879

16. Strain relief, Nylon snap-in ...........................13936

17. Screw, 10 x 3/4" self-drilling .........................12722

18. Collar, split, shown for reference

Refer to Section 8.7 for pulse parts ..............25866

19. Liner, 1/4" blue urethane bottom (current)

for use with baskets with 5" opening .........28158

** Liner, 1/8" black Neoprene bottom

for use with baskets with 7" opening .........24972

**For replacement only; cannot be used with current

basket design with 5" dimeter opening.

Figure 20

7 10

* All of Item 9 are installed from inside the cabinet.

BNP-160 TUMBLE BASKET BLAST CABINET Page 19

8.4 Gun, Media Feed, and Plumbing Assembly

Figure 21

Item Description Stock No.

1. Nut, nozzle-holding ...................................... 11914

2. Body, gun ..................................................... 12267

3. Air jet No. 5 .................................................. 11952

4. Nozzle

ceramic No. 5 ............................................ 11930

tungsten carbide, No. 5 (standard) ........... 13118

boron carbide, No. 5 ................................. 11935

5. Washer ......................................................... 04396

6. Nut, 3/4" lock ................................................ 12807

7. Bushing, 3/4" x 3/8" ...................................... 12748

8. Adaptor, 3/8" male NPT x 1/2" male flare .... 11726

9. Fitting, hose, 1/2" barb x 1/2" fem. swivel .... 15002

10. Hose, 1/2" clear media, 6-ft. required .......... 12476

11. Bracket, gun mount ...................................... 12806

12. Valve 1/2" NPT 2- way w/115-v solenoid ..... 12191

13. Filter, 3/8" NPT, manual drain ..................... 25870

14. Gauge, 1/8" cbm (replacement) ................... 01908

15. Fitting, hose, 3/8" NPT male x 1/2" barb ..... 06369

16. Hose, 1/2" air, 4-ft. required ......................... 12472

17. Fitting, straight, 1/8" NPT x 1/8" barb .......... 11732

18. Regulator, 1/4" NPT pressure w/gauge ....... 12050

19. Fitting, straight 1/4" NPT x 3/8" tube ............ 11736

20. Regulator, 3/8" NPT pressure w/gauge ....... 25869

21. Metering valve body ..................................... 11532

22. Plug, metering valve .................................... 12011

23. Connector, strain relief, alum. ...................... 11631

24. Nipple, 1/4" NPT brass hex ......................... 02808

25. Bushing 1/4" NPT x 1/8" NPT brass ............ 02010

26. Elbow, 3/8" NPT x 90oSt., brass ................. 03595

27. Screw, #10 x 1/2" truss ................................ 12062

28. Nut, 10-24 lock ............................................. 12731

29. Bushing, 3/8" NPT x 1/4" NPT ..................... 12818

30. Nipple, 1/4" NPT x 1-1/2" galv. .................... 11911

Some items removed or rotated for clarity.

Figure 21

25 24

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