Clarke CSB20B User Manual

SHOT BLAST CABINET

SHOT BLAST CABINET

MODEL No. CSB20B

Part No. 7640110

OPERATING & MAINTENANCE

INSTRUCTIONS

1001

Item Description Part No.

Item Description Part No.

SPARE PARTS AND SERVICING

Please contact your nearest dealer, or

CLARKE International, on one of the following numbers.

PARTS & SERVICE TEL: [phone]

PARTS & SERVICE FAX: [phone]

or e-mail as follows:

PARTS: [e-mail]

SERVICE: [e-mail]

Please note that the details and specifications contained herein, are correct at the time of going to print. However,

CLARKE International reserve the right to change specifications at any time without prior notice.

1

1 Grid HTCSB2001

2 Flourescent Tube 12V HTCSB2002
3 End Connector HTCSB2003
4 Plastic cover HTCSB2004
5 Input Cable Assy*
6 Cable Gland assembly HTCSB2006
7 Power Cable Assembly*2HTCSB2007
8 Main Filter HTCSB2008

9 Secondary Filter HTCSB2009
10 Retaining disc. HTCSB2010
11 Rubber Gloves (pair) HTCSB2011
12 Worm Drive Clip HTCSB2012
13 Clear Plastic Lid HTCSB2013
14 Knob HTCSB2014
15 Lid Retaining Chain HTCSB2015
16 Clear Plastic Window HTCSB2016
17 Window Retaining Strip HTCSB2017
18 Lid Hinge HTCSB2018
19 Florescent Tube Clip HTCSB2019
20 Air Vent Foam Packing HTCSB2020
21 Lid Swivel Clamp HTCSB2021
22 Cable Connection Box HTCSB2022
23 Cabinet only (minus lid) HTCSB2023

1 - comprising; wiring, plastic end cover and reflector.

*

- comprising; cable, transformer with 3-pin plug and connector.

*2

- includes items 24 and 26

*3

1

HTCSB2005

24 End Cap HTCSB2024
25 Abrasive Nozzle 4mm HTCSB2025A

Abrasive Nozzle 5mm HTCSB2025B
Abrasive Nozzle 6mm HTCSB2025C

Abrasive Nozzle 7mm HTCSB2025D

26 Air Nozzle N/A
27 O-Ring HTCSB2027
28 Push Rod HTCSB2028
29 Return Spring HTCSB2029
30 Abrasive Intake Hose HTCSB2030
31 Air Hose Adapter HTCSB2031
32 Worm Drive Clip HTCSB2032
33 Air Hose HTCSB2033
34 Flat Washer HTCSB2034
35 Adapter Nut HTCSB2035
36 Gun*
37 O-Ring HTCSB2037
38 Plug HTCSB2038
39 Adapter HTCSB2039
40 Abrasive Pickup HTCSB2040
41 Worm Drive Clip HTCSB2041
42 Grid Foot HTCSB2042

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3

HTCSB2036

PARTS DIAGRAM

Thank you for purchasing this CLARKE Shot Blast Cabinet which is designed
for professional, workshop use.

Please read this booklet thoroughly and follow the instructions carefully, in
doing so you will ensure the safety of yourself and that of others around
you, and you can look forward to the Shot Blast Cabinet giving you long
and satisfactory service.

GUARANTEE

This CLARKE product is guaranteed against faulty manufacture for a period
of 12 months from the date of purchase. Please keep your receipt as proof
of purchase. This guarantee is invalid if the product is found to have been
abused or tampered with in any way, or not used for the purpose for which
it was intended.

Faulty goods should be returned to their place of purchase, no product
can be returned to us without prior permission.

This guarantee does not affect your statutory rights.

CONTENTS Page

Spare Parts & Service Contents ............................... 1

Features ...................................................................... 3

Safety Precautions .................................................... 3

Assembly .................................................................... 4

Changing Nozzles...................................................... 4 - 5

Operation ................................................................... 6

Maintenance ............................................................. 7

Changing the Fluorescent Tube .............................. 7

Troubleshooting ......................................................... 8

Parts Diagrams ........................................................... 9-10

Parts list ....................................................................... 10

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2

FEATURES

The 3 cu ft cabinet is lit by a low voltage (12 volt) fluorescent tube. A transformer
is provided which should be plugged directly into the mains supply. The attached
cable is then plugged into the switchbox, mountred on the left side of the cabinet.
The switchbox contains the ON/OFF rocker switch.

We strongly recommend that this unit be used with a vacuum extraction device.

Air is extracted via a double filtration system from the facility at the right hand
side of the cabinet.

Please note that when vacuum extraction is used, air will be drawn into the cabinet
through the hole on the back panel of the unit. The hole is covered on the outside
with a filter plate, and housed within the plate is a foam filter, which must always
be in place. This is to prevent grit from being blown out, if/when the vacuum
extraction is NOT used.

The lid is provided with a double clear plastic window, the inner of which may be
renewed quickly and easily if it should become damaged by the sand blasting
action.

A variety of abrasive nozzles is supplied with the unit to produce a useful range of
power and grit densities to satisfy all requirements. The cabinet is designed for use
with dry abrasives ONLY. We recommend Aluminium Oxide (for cleaning steel)
and Glass Beads (for cleaning Aluminium).

It is necessary to provide a clean, dry air supply, capable of delivering a minimum
of 10 cuft/min at 100 lbf/in
you comply with all safety precautions regarding the use of air compressors, and
observe all necessary precautions when using compressed air.

2

. Please consult your air compressor manual, ensuring

TROUBLESHOOTING

PROBLEM

Excessive dust
in cabinet

Uneven blasting
action

Inadequate
speed or
inefficient blast

Air vent or airflow is
blocked

Abrasive media worn

Too much abrasive media
in the cabinet

Loose air line or fitting
connections

Too much abrasive media
inside cabinet

Abrasive damp

Moisture present inside
cabinet

Abrasive media worn

Pressure too low

CAUSE

REMEDY

Clean rear vent, and keep
vent away from any wall.

Replace abrasive media

Remove excessive media

Tighten fittings and make
sure air lines are secure.

Remove excessive media

Renew abrasive, or dry
thoroughly before use.

Check air line to ensure it is
free from moisture

Replace abrasive media

Increase inlet pressure and
ensure control valve is fully
opened

SAFETY PRECAUTIONS

• Ensure you comply with all precautions concerning the use of air compressors

and compressed air.

• Ensure all air connections are secure.

• Do Not use the machine if the rubber gloves are ripped or otherwise

unserviceable.

• Ensure the clear plastic lid is firmly secured before pressing the trigger.

• Keep the jet well away from the air inlet hose (from side panel to gun).

• ALWAYS wear safety glasses. (Normal eye glasses are NOT safety glasses).

3

Static electricity
present.

Excessive Media
blown into
surrounding
atmosphere
when no vacuum
extraction is
being used.

Dry weather conditions

Lid not secure

Air vent filter missing.

8

Leave the item to be
cleaned on the grid.

Secure lid with swivel clips,
and adjust them if
necessary.

Replace filter, or blank off
hole in rear panel
temporarily with masking
tape. (Remember to
remove masking tape when
using vacuum extraction.

MAINTENANCE

ASSEMBLY (ref. Fig 1)

Before use, check to ensure that all parts are serviceable, including the air inlet
hose, rubber gloves and abrasive pick-up.

Ensure the air vent foam filter is in place.

The swivel clamps, securing the lid, must be secure so as not to allow the lid to
open during operation. The build up of air pressure within the cabinet could force
the lid open, allowing abrasive to escape. This is not only wasteful, but could be a
health hazard.

Ensure the filters are serviceable and seated correctly.

Ensure you comply with all precautions regarding the use of compressed air, and
air compressor operation.

Changing the Fluorescent Tube

Ensure the transformer is disconnected from the power supply before opening
the lid and cutting the two ties securing the lamp to its retaining clips.

Carefully pull the lamp from its retaining clips then hold the clear plastic protective
outer tube firmly and ease off the plastic end cover from the non-wired end. (This
may take a little persuasion and perseverance).

Once the end cover has been removed, hold the end cover at the opposite end
(the cable input end), and pull off the outer protective clear plastic tube.

The fluorescent tube is now fully revealed.

Pull off the end connector, which secures a wire to one of the pins, taking care
not to distort the aluminium reflector. Then pull off the wire secured by a plastic
sheath to one of the pins at the cable input end.

Assemble in reverse order, ensuring the wires are correctly held by the plastic
sheath at one end and the end connector at the other, with the reflector correctly
in position.

Replace the assembly into its retaining clips and test its operation by plugging the
transformer in to the mains.

Carefully unpack the unit, and check to ensure that no damage was caused in
transit. Should any damage be apparent, please contact your Clarke dealer
immediately. Remove all components from inside the cabinet, and check them
against the following list.

Fig.1

A - Foam Vent Filter
B - Air Vent Cover
C - Ceramic Nozzles 4, 5, 6 & 7mm

(One nozzle is fitted)

The unit is shipped completely assembled, except for the air vent filter and the
gun with attached hoses. These should be connected as follows:

First, remove the grid, and all the various components, from within the cabinet.

Fig.2

D - Gun c/w air and Pick up hoses
E - 12V transformer w/cable
F - Abrasive pick up
G - PTFE Tape.

The end of the air inlet hose, connected to the
gun, is inserted through the 16mm dia. hole in
the cabinet, from the inside, as shown in Fig. 2.
Ensure a flat washer is threaded on to the
adapter, as shown.

Thread a flat washer, followed by the
extended nut, on to the adapter, from the
outside of the cabinet, and tighten.

Fig.3

Connect the grit pick up hose to the pick­up and tighten the worm drive clip securely.
Locate the pick up on the floor of the
cabinet. It is secured with the two spring
clips as shown in Fig 3.

7

4

Replace the grid, ensuring the feet face
downwards with the cut away section at
the right hand rear of the cabinet. The
pick up hose should be routed throught
the gap made by the cut away portion
of the grid.

Insert the circular foam filter into the recess
in the Air Vent Cover, and attach the cover
to the rear of the cabinet as shown in Fig.4,
having first prised out the plastic bung from
the vent hole.

Finally, connect the air supply to the extended
nut shown in Fig.5. Use of the PTFE tape supplied
with ensure an airtight seal.

The air supply should be dry, and capable of
delivering a minimum of 10 cuft/min at 100 lbf/in

2

Fig.4

Fig.5

OPERATION

Plug the transformer into the power supply and switch the power ON. Switch the
lamp ON by pushing the rocker switch on the switch box ‘I’. Switch OFF by pushing
‘O’.

Ensure all air connections are secure, and the pick up is correctly located beneath
the grid, before filling the cabinet with abrasive media. Do not fill higher than the
level of the grid.

NOTES:

T

here are no hard or fast rules governing nozzle sizes and air pressures used with
different abrasives. With experience and experimentation you will quickly learn
the best combinations for the required result.

On more delicate parts, start with minimal air pressure to avoid unnecessary
peening or excessive abrasion, and work up to a setting to produce the desired
finish.

Should any abrasive be spilled, ensure it is cleaned up immediately, as its slippery
properties can be extremely hazardous.

Replacing the Abrasive Nozzle

Fig.6

NOTE:
PTFE tape is provided which may be used on the threads of the various connectors

to ensure an airtight connection.

Select the ceramic abrasive nozzle to produce the jet required for the abrasive
media being used, and assemble according to the instructions given below.

Place the object to be cleaned in the cabinet, and close the lid, securing with the
two swivel clips.

If you are using a vacuum extraction device, turn it on before turning on the air
supply. Set the pressure to the required value, but not higher than 100lbf/in2, and
check to ensure there are no air leaks. Should there be any, turn off the air supply
and repair where necessary, before turning the supply back on. Pull the trigger on
the gun and proceed to blast the object to be cleaned.

Keep the jet facing the object and away from the clear plastic lid. Do not allow
the jet to train on the rubber gloves, the air hose within the cabinet or the fluorescent
lamp.

When completed, turn off the air supply first, and, as a precautionary measure,
pull the trigger before opening the lid.

5

Ensure the air supply is disconnected before performing this operation.

1. Pull the trigger of the gun as a precautionary measure.

2. Unscrew the End Cap and withdraw the ceramic nozzle.

3. Replace with the nozzle of your choice and carefully thread the end cap

back on to the gun, taking great care NOT to cross thread the fine thread.

NOTE:
Should it be necessary to change the Air Nozzle, first remove the abrasive nozzle
as described above. An box spanner will be required to unscrew and withdraw
the air nozzle.

6