Powder Conditioning Systememanuals.nordson.com/finishing/files/ChinaManufacturing/... · 2013-05-06 · Nordson China, China Sourcing Operation 828 Xin Jin Qiao Road Pudong New District

Powder Conditioning System

Manual P/N 779168 --English--

Keep for Future Reference

Nordson China Sourcing - Shanghai

Table I

P/N 779168 Powder Conditioning System © 2001 Nordson Corporation

Issued 10/01 All rights reserved

Trademarks

AccuJet, Aquaguard, Asymtek, Automotive, Autotech, Blue Box, CF, Can Works, Century, Clean Coat, CleanSleeve, CleanSpray, COLORMAX, Compumelt, Control Coat, Cross-Cut, Cyclo-Kinetic, Dispensejet, DispenseMate, Durafiber, Durasystem, Easy Coat, Easymove Plus, Econo-Coat, EPREG, ETI, Excel 2000,

Flex-O-Coat, Flexi-Spray, Flow Sentry, Fluidshooter, FoamMelt, FoamMix, Helix, Horizon, Hose Mole, Hot Shot, Hot Stitch, Isocoil, Isocore, Iso-Flo, KB30, Little Squirt, Magnastatic, MEG, Meltex, MicroSet, Millenium, Mini Squirt, Moist-Cure, MultiScan, Nordson, OmniScan, Opticoat, Package of Values,

PluraFoam, Porous Coat, Powderware, Pro-Flo, ProLink, PRX, Rhino, S.design stylized, SC5, SCF, Select Coat, Select Cure, Slautterback, Smart-Coat, Spray

Squirt, Spraymelt, Super Squirt, Sure-Bond, Sure Coat, System Sentry, Tela-Therm, Trends, Tribomatic, UniScan, UpTime, Versa-Coat, Versa-Screen, Versa-Spray, Watermark, When you expect more are registered trademarks-®- of Nordson Corporation.

ATS, Auto-Flo, AutoScan, BetterBook, Chameleon, CanNeck, Check Mate, CPX, Control Weave, Controlled Fiberization, EasyClean, Ebraid, Eclipse, Equi=Bead, Fillmaster, FlexiCoat, Gluie, Ink-Dot, JR, Maxima, MicroFin, Minimeter, Mountaingate, Multifil, OptiMix, Pattern View, PluraMix, Primarc, Prism,

Pro-Meter, Pro-Stream, Process Sentry, PurTech, Pulse Spray, Saturn, Seal Sentry, Select Charge, Select Series, Sensomatic, Shaftshield, Spectral, Spectrum, Sure

Brand, Sure Coat, Swirl Coat, Vista, Walcom, 2 Rings (Design) are trademarks -™- of Nordson Corporation.

Designations and trademarks stated in this document may be brands that, when used by third parties for their own purposes,

could lead to violation of the owners’ rights

Table I



Your Safety is Important to Nordson 0-1

Manufacturer of Equipment 0-1

Congratulations on the Purchase of Your Nordson Product

Nordson Asia Sales Offices 0-2

Section 1 Safety 1. Introduction 1-1

2. Qualified Personnel 1-1

3. Intended Use 1-1

4. Regulations and Approvals 1-1

5. Personal Safety 1-2

6. Fire Safety 1-3

7. Action in the Event of a Malfunction 1-3

8. Disposal 1-3

Section 2 Description 1. Introduction 2-1

2. Intended Use 2-1

3. System Equipment 2-1

Section 3 Operation 1. General 3-1

2. System Start-Up 3-1

3. System Shut-Down 3-3

4. Periodic Maintenance 3-4

Table I



Section 4 Part List Part List – 780301 PCS80/AZO Rotary Sieve 4 - 1

Part List – 780338 PCS120/AZO Rotary Sieve 4 - 2

Part List – 780339 PCS120/AZO Rotary Sieve (Frit) 4 - 3

Part List – 780264 PCS200/AZO Rotary Sieve 4 - 4

Part List – 780305 PCS80/V, 240V Vibrator 4 - 5

Part List – 780266 PCS200/AZO Rotary Sieve (Frit) 4 - 6

Part List – 780343 PCS120/V, 240V Vibrator 4 - 7

Part List – 780298 Powder Hopper CH-80kg 4 - 8

Part List – 780081 Powder Hopper CH-120kg 4 - 9

Part List – 780277 Powder Hopper CH-200kg 4 - 1 0

Part List – 780167 Cyclone, 6 Inlet for AZO Rotary Sieve 4 - 1 1

Part List – 780290 Vent Assist Assembly 4 - 1 2

Part List – 780360 PCS80/450E 4 - 1 3

Part List – 780362 PCS200/450E 4 - 1 4

Section 5 Appendix 1. General 5 - 1

2. Operation 5 - 1

3. Troubleshooting 5 - 1

Introduction 0-1



Congratulations on the Purchase of Your Nordson Product

Nordson equipment is engineered and manufactured in accordance with strict specifications, using high quality components and state-of-the-art technologies that assure reliable, long –term performance. Your Product was thoroughly tested for proper operation prior to shipment. Before unpacking and installing your new equipment, please read this manual. It is your guide to safe installation, productive operation and effective maintenance. We recommend that you keep the manual available for future reference. Carefully read the Safety section. Your product is designed for safe operation when used according to the published instructions. Potential hazards exist when operating instructions are not followed. Nordson China, China Sourcing Operation 828 Xin Jin Qiao Road Pudong New District Shanghai 201206 China Telephone: 86-21-58568855 Fax: 86-21-58565777

For a list of local Nordson organizations, see Nordson international.

Your Safety is Important to

Nordson

Manufacturer of Equipment

Introduction 0-2



Nordson Asia For your nearest Nordson office contact. The Nordson offices below for detail information.

Contact Nordson Phone Fax

China (North) Nordson China 86-21-5854 2345 86-21 5854 9150

China (South) Solar Pike 86-20-8544 0092 86-20-8552 0707

Hong Kong Nordson Application Equipment 852-2687 2828 852-2687 4748

Taiwan Nordson Da 8862 8209 7066 8862 8209 7022

Korea Nordson Sang San 82-347-766 8321 82-347-7668320

Philippines Thailand Indonesia Vietnam

Nordson South East Asia 65-778 2511 65-778 3151

Australia Nordson Australia 61-2-9838 7144 61-2-9838 7394

New Zealand Nordson New Zealand 61-2-9838 7144

Malaysia Nordson Malaysia 603-5637 6281 603-5635 2977

Japan Nordson Japan 81-3-5762 2700 81-3-5762 2701

India Nordson India

91-80-783 4915 to 783 4920

91-80-783 4922

South America Latin America

Nordson PSD 1-440-988 9411 1-440-985 3710

Nordson America USA 1-440-988 9411 1-440-985 1417



Section 1

Safety

Safety 1-1



Section 1 Safety

Read and follow these safety instructions. Task and equipment specific warning, cautions, and instructions are included in equipment documentation where appropriate, Make sure all equipment documentation, including these instructions, is accessible to all persons operating or servicing equipment. Equipment owners are responsible for making sure that Nordson equipment is installed, operated, and serviced by qualified personnel. Qualified personnel are those employees or contractors who are trained to safely perform their assigned tasks. They are familiar with all relevant safety rules and regulations and are physically capable or performing their assigned tasks. Use of Nordson equipment in ways other than described in the documentation supplied with the equipment may result in injury to persons or damage to property.

• some example of unintended use equipment include

• using incompatible materials

• making unauthorized modifications

• removing or bypassing safety guards or interlocks

• using incompatible or damaged parts

• operating equipment in excess of maximum ratings Make sure all equipment is rated and approved for the environment in which it is used. Any approvals obtained for Nordson equipment will be voided if instructions for installation, operation, and service are not followed.

Warning: When using the gun mover for liquid paint application, it must be equipped with an E.X.E. (explosion proof) motor. The motor gland, wiring and plug must meet local electrical regulations for a CLASS 1 ZONE 1 environment.

4. Regulations and

Approvals

3. Intended Use

2. Qualified Personnel

1. Introduction

Safety 1-2



To prevent follow these instructions.

• Do not operate or service equipment unless you are qualified.

• Do not operate equipment unless safety guards, doors, or covers are intact and automatic interlocks are operating properly. Do not bypass or disarm any safety services.

• Keep clear of moving equipment. Before adjusting or servicing any moving equipment, shut off the power supply and wait until the equipment comes to a complete stop. Lock out power and secure the equipment to prevent unexpected movement.

• Relieve (bleed off) hydraulic and pneumatic pressure before adjusting or servicing pressurized systems or components. Disconnect, lock out, and tag switches before servicing electrical equipment.

• While operating manual electrostatic spray guns, make sure you are grounded. Wear electrically conductive gloves or a grounding strap connected to the gun handle or other true earth ground. Do not wear or carry metallic objects such as jewelry or tools.

• If you receive even a slight electrical shock, shut down all electrical or electrostatic equipment immediately. Do not restart the equipment until the problem has been identified and corrected.

• Obtain and read Material Safety Data Sheets (MSDS) for all materials used. Follow the manufacturer’s instructions for safe handling and use of materials, and use recommended personal protection devices.

• To prevent injury, be aware of less-obvious dangers in the workplace that often cannot be completely eliminated, such as hot surfaces, sharp edges, energized electrical circuits, and moving parts that cannot be enclosed or otherwise guarded for practical reasons.

5. Personal Safety

Safety 1-3



To avoid a fire or explosion, follow these instructions.

• Ground all conductive equipment in the spray area. Clerk equipment and workpiece grounding devices regularly. Resistance to ground must not exceed one mega-ohm.

• Shut down all equipment immediately if you notice static sparking or arcing. Do not restart the equipment until the cause has been identified and corrected.

• Do not smoke, weld, grind, or use open flames where flammable materials are being used or stored.

• Provide adequate ventilation to prevent dangerous concentrations of volatile materials or vapors. Refer to local codes or your material MSDS for guidance.

• Do not disconnect live electrical circuits while working with flammable materials. Shut off power at a disconnect switch first to prevent sparking.

• Know where emergency stop buttons, shutoff valves, and fire extinguishers are located. If a fire starts in a spray booth, immediately shut off the spray system and exhaust fans.

• Shut off electrostatic power and ground the charging system before adjusting, cleaning, or repairing electrostatic equipment.

• Clean, maintain, test, and repair equipment according to the instructions in your equipment documentation.

• Use only replacement parts that are designed for use with original equipment. Contact your Nordson representative for parts information and advice.

If a system or any equipment in a system malfunctions, shut off the system immediately and perform the following steps.

• Disconnect and lock out electrical power. Close pneumatic shutoff valves and relieve pressures.

• Identify the reason for the malfunction and correct it before restarting the equipment.

Dispose of equipment and materials used in operation and servicing according to local codes.

6. Fire Safety

7. Action in the Event of a

Malfunction

8. Disposal



Section 2

Description

Description 2-1



Section 2 Description

This manual covers the Nordson Powder Conditioning System (PCS) which is designed to be used in conjunction with Nordson Powder Coating Installation. The way in which the PCS is integrated with a typical installation is shown in Figure 1 (for cartridge-based systems) and Figure 2 (for cyclone-based systems). The Booth, Reclaim Section, New Powder Feeders and other components of your system are described in separate manuals. The PCS receives new and reclaimed powdered paint, sieves out any impurities which may affect the paint finish and stores the powder in a feed hopper. A porous fluidizing plate in the bottom of the feed hopper diffuses low pressure air into the powder supply. The air fluidizes (or aerates) the powder so that it can be pumped to the spray guns. The gun pumps, mounted on the lid of the feed hopper, draw powder out of the hopper through pickup tubes, mix it with a high velocity stream of air and force it through the feed hoses to the powder spray guns. The guns electrostatically charge the powder and spray it onto grounded workpieces, conveyed through the Powder Booth Canopy. To maintain a slight negative pressure, a vent duct connects the feed hopper with the Colour Changeable Module (Figure 1) or the Afterfilter Unit (Figure 2). A typical PCS system consists of two main parts, the powder sieve and the feed hopper. These are shown in Figures 1 and 2, for cartridge reclaim systems and cyclone reclaim systems, respectively. The hopper and the sieve are selected according to the required powder throughput, the number of spray guns, the expected powder properties and environmental factors specific to the place of installation. Additionally, the PCS may be specially modified and/or fitted with accessories designed to suit specific requirements. These may include simpler powder handling (eg. Powder Bulk Feed System), automated control (eg. Powder Level Control System), provision for adverse climates (eg. Air Drier) and close coupling the PCS unit with the cartridge module. Where applicable, these are described in separate manuals.

1. Introduction

2. Intended Use

3. System Equipment

Description 2-2



The following table describes the standard feel hopper and sieve combinations:

UNIT No DESIGNATION DESCRIPTION

780301 PCS 80/AZO 80Kg Hopper with AZO Rotary Sieve


780339 PCS 120/AZO 120Kg Hopper with AZO Rotary Sieve (Frit System)


780305 PCS 80/V 80Kg Hopper with Box Vibratory Sieve, 240V

780266 PCS 200/AZO 200Kg Hopper with AZO Rotary Sieve (Frit System)

780343 PCS 120/V 120Kg Hopper with Box Vibratory Sieve, 240V



Section 3

Operation

Operation 3-1



Section 3 Operation

Use these procedures to prepare your PCS unit for use with other new or existing components of your Powder Coating installation. The setup and operational procedures for the associated Nordson powder application equipment are covered in separate manuals. 1. To ensure that the various components of the PCS Unit supplied

operate correctly and efficiently the following system air and electrical supply requirements need to be provided.

Component

Air Flow Max’m (cfm)

Air Pressure Normal (psi / kPa)

Voltage (AC)

Phase

Power (kW)

Feed Hopper (80 Kg) 12 15 / 103 N/A N/A N/A



Rotary Sieve – AZO 7 60 / 414 380 to 460 or 110 to 240

3 1

0.37 0.37

Rotary Sieve – Nordson 7 60 / 414 230 to 460 or 110 to 240

3 1

0.18 0.18

Pancake or Box Sieve N/A N/A 110 or 240 1 0.022

Easy-Screen Sieve N/A N/A 415 3 0.15

Vent Assist 3 40 / 280 N/A N/A N/A

2. Before starting up, ensure that all tube fittings, hose clamps and

electrical plugs are securely fitted. Connections should follow the general format shown in Figure 3,4, and 5.

3. Ensure that all the installation guidelines have been completed for the

other sub-systems in your power system such as the powder booth reclaim section, new powder feeders and other accessories. Follow the instructions shown in the corresponding manuals supplied separately.

1. General

2. System Start-Up

Operation 3-2



4. Set all air pressure regulators, supplying lines to the main PCS components, to zero.

5. Turn ON the system compressed air supply. Adjust supply pressure to

700 kPa (100psi). 6. Turn ON the system electrical power.

7. Press the START push button to start the exhaust fan.

8. Ensure that the hopper is correctly grounded to earth

Fill the feed hopper with powder to approximately 2/3 full.

9. Calibrate the powder level sensor (if fitted) on the feed hopper following the instructions supplied separately.

10. Set the feed hopper fluidizing air pressure to 0.15 – 0.2kPa (10 – 15

psi). Adjust the pressure until it appears to be gently ‘boiling’.

Allow 10-15 minutes before spraying, to ensure the application of properly conditioned powder.

11. Set up the powder sieve following the guidelines shown in the

respective manual included in the appendix section of this manual. Generally the sieve will start up with the exhaust fan.

12. For the transfer pump, which draws powder from the colour

changeable module to the sieve, set the air pressure to 70kPa (10 psi). Adjust the pressure to a higher level if necessary.

Systems with more than one reclaim hopper may be fitted with timed module pumpout. Ensure that the necessary adjustments are carried out in accordance with the instructions shown in the relevant manual.

13. If Vent assist is fitted to the vent spigot of the feed hopper carry out

the following adjustment after a few minutes with the system on and the sieve running.

Lift the access lid on the top of the feed hopper. If the top surface of the fluidized layer of powder is not visible then adjust the air flow control valve to increase the air flow to the vent assist nozzle. The vent assist nozzle. The vent assist will create a slight negative pressure within the hopper, thereby clearing away the cloud of suspended powder from the upper region of the hopper.

14. After following the guidelines in this manual as well as those for associated sub-systems, the conveyor packs switched ON and the gun movers switched ON.

Operation 3-3



1. Turn OFF the gun power packs, gun movers and unload the conveyor hangers, ensuring clear access inside the booth.

2. Start the transfer pumps and sieves. Clean the booth interior

completely and pump the reclaimed powder back from the hopper(s) of the reclaim section into the PCS hopper.

Note: It is important that the reclaimed powder be stored in the hopper when the system is left in a shutdown condition. This will ensure that the powder can be effectively conditioned before startup.

3. Remove the powder transfer hoses from the powder transfer pumps

and clean through with compressed air. Never blow the hoses towards the transfer pumps.

Replace the hoses if they are clogged with impact fused powder.

4. Remove the powder transfer pumps and clean them using compressed air. Inspect any parts for damage and replace if necessary.

Refit pumps and hoses.

5. Clean rotary sieves by turning off the sieve, emptying the scrap bucket and, by opening the sieve housing, cleaning the rotor and filter screen with a soft brush. Inspect the screen for damage and replace if necessary.

For vibratory sieves, unclamp and withdraw the upper section, clean and inspect the screen and replace if damaged.

6. Carry out cleaning tasks on the powder room, booth, reclaim section, powder guns etc.

7. Turn OFF the exhaust fan. Shut OFF the system electrical powder and

the compressed air supply.

Note: Turn OFF the exhaust fan. Shut OFF the system electrical power and the compressed air supply.

3. System Shut-Down

Operation 3-4



Refer to the cleaning, inspection and replacement items listed in the system shutdown section. Empty the hopper completely. Vacuum all interior surfaces and inspect the tile for damage or staining. If damaged or stained, then replace. If stained, then check the air drier and air filter and rectify before restarting. Rotary sieves: refer to the appended manual for instructions. Lubricate all wheels and castors with two shots of lithium grease every six months.

4. Periodic Maintenance

Daily

Weekly

Periodic



Section 4

Part List

Part List 4-1



Part List – 780301 PCS80/AZO Rotary Sieve

CSO Part Number

Item Description Qty

780165 Scrap Bucket, Suit AZO Rotary Sieve 1

780167 Cyclone, 6 inlet, Suit AZO Rotary Sieve 1

780171 Mounting Kit, Suit AZO Rotary Sieve 1

780298 Powder Hopper CH-80 kg 1

779133 Flexible Duct, 55mm, Blue 0.5

777330 Plug/socket – Military spec, 5 pin, AZO 1

779008 Fabn, Spigot, AZO waste 1

779261 Sieve, Rotary, AZO – Siemens 380v motor 1

249467 Regulator, inline, air 1

778981 Mounting plate, waste bucket, mk3 1

779138 Flexible Duct, 75mm, Blue 2

779142 Clamp, Hose, 75-90mm, steel, zinc plated 4

777015 Circuit Breaker, Three Pole, 16Amp 1

777298 Motor Circuit Breaker, Three Pole, 0.40 – 0.63A 1

777080 Contactor, Three Pole, 240V/50, Rated 415V/9.0 1

777461 Switch, Surface Mount, Three Pole, 500V, 10A 1

777333 Socket Extension, Appliance Inlet, Five Pin, 250 1

777381 Socket, Appliance Inlet, Five Pin, 500V, 15Amp 1

777225 Mounting Enclosure, PVC, Three Gang 1

778857 Cable, Three Core & Earth, 2.5sq.mm, Flexible 6

Part List 4-2




CSO Part Number


780081 Powder Hopper CH-120 kg 1





779133 Flexible Duct, 55mm, Blue 0.5

777330 Plug/socket – Military spec, 5pin, AZO 1


779261 Sieve, rotary, AZO – Siemens 380V motor 1


779138 Flexible Duct, 75mm Blue 1

779142 Clamp, Hose, 75-90 mm, steel, zinc plated 4









Part List 4-3



Part List – 780339 PCS120/AZO Rotary Sieve (Frit)

CSO Part Number


780081 Powder Hopper CH -120 kg 1

780163 PCS frit milk can for AZO 10 inlet 1



780800 Magnetic Drawer Assembly, for Frit PCS 1

779261 Sieve, rotary, AZO – Siemens 380v motor 1

778996 VENT, spigot, single 45 deg 2











778867 Cable, Two Core & Earth, 2.5sq.mm, Circular, O 6

777329 Multipin Connector Straight Coupling, Panel Mou 1

777334 Multipin Connector Hood, Seven Way, Side Entr 1

777336 Multipin Connector Plug Insert, Seven Way 1

779199 Powder Coat Painting, External 2

Part List 4-4




CSO Part Number





780277 Powder Hopper CH-200kg 1

779133 Flexible Duct, 55mm, Blue 5

777330 Plug/socket – Military spec, 5 pin, AZO 1








777298 Motor Circuit Breaker, Three Pole, 0.40 – 0.63 A 1







Part List 4-5



Part List – 780305 PCS80/V, 240V Vibrator

CSO Part Number


780168 Sieve, Vibratory box, bare 240v 1



451312 Plug, Straight, Three Pin, 250V, 10Amp 1

Part List 4-6



Part List – 780266 PCS200/AZO Rotary Sieve (Frit)

CSO Part Number


780163 PCS frit milk can for AZO 10 inlet 1




780800 Magnetic Drawer Assembly, for Frit PCS 1


778996 VENT, spigot, single, 45 deg 1

778997 VENT, spigot, single, 90deg 2











778867 Cable, Two Core & Earth, 2.5sq.mm, Circular, O 6

777329 Multipin Connector Straight Coupling, Panel Mou 1

777334 Multipin Connector Hood, Seven Way, Side Entr 1

777336 Multipin Connector Plug Insert, Seven Way 1


Part List 4-7



Part List – 780343 PCS120/V, 240V Vibrator

CSO Part Number



780168 Sieve, Vibratory box, bare 240V 1


778996 Vent, spigot, single 45deg 1

777339 Plug, Straight, Three Pin, 250V, 10Amp 1

Part List 4-8



Part List – 780298 Powder Hopper CH-80kg

CSO Part Number


779072 Wire, ground, 2mm, SS 1.5

779089 Aligator clamp, ground wire 1

779248 Gasket, Rubber, EDPM, 5×19mm 2.5

778805 Latch, undercentre, zinc plated 4

779064 Fluid Tile, ½", CH80 Hopper, 575sq.refer 7807 1

779037 OJOP Fastner extra length 1

f780298 Fabrication, 80kg hopper 1

779295 Wheel, castor, Nylon, PCS 3

779291 Wheel, Castor, cast iron, fixed, PCS 1

778804 Clamp, OJOP style large w/ hook 8


779237 Gasket, 2mm×20, CH80/120/200 hoppers 8

778005 Coupling, Female, ¼"F w plug 1

Part List 4-9




CSO Part Number




779248 Gasket, Rubber, EDPM, 5×19mm 3


779065 Fluidizing Tile, ½", CH120 Hopper, 570×830 1


f780081 Fabrication, Hopper, 120kg 1

778005 Coupling, Female, ¼" F w plug 1



779248 Gasket, Rubber, EDPM, 5×19mm 5



Part List 4-10




CSO Part Number





779248 Gasket, Rubber, EDPM, 5×19mm 3.5

779063 Fluidzing tile, ½", CH200 Hopper, 775×775 1



f780277 Fabrication, CH 200 Hopper 1





779237 Gasket, 2mm×20, CH80/120/200 hoppers 5


778005 Coupling, Female, ¼"F w plug 1

Part List 4-11



Part List – 780167 Cyclone, 6 Inlet for AZO Rotary Sieve

CSO Part Number


778798 Clamp, OJOP Style small, with hook 3

778801 Hook, OJOP small 3

778979 Fabn, Minicyclone, 6 Inlet, AZO rotary sieve 1



Part List 4-12



Part List – 780290 Vent Assist Assembly

CSO Part Number


778250 Pneumatic, speed controller, vent assist 1

778923 Nozzle, machined, vent assist 1

779135 Tubing, Nylon 6mm×Metre 5

Part List 4-13



Part List – 780360 PCS80/450E

CSO Part Number



780363 Sieve, Easyscreen (450mm) assembly, 1 Phase 1

Part List 4-14



Part List – 780362 PCS200/450E

CSO Part Number



780363 Sieve, Easyscreen (450mm) assembly, 1 phase 1



Section 5

Appendix

Appendix 6-1



Nordson Vibratory Sieves consist of a powder collection chamber with a sieve screen element as the lowermost surface. The whole assembly is agitated by an electrically driven vibrator. Incoming powder passes through the moving screen retaining contaminates which may otherwise adversely affect the paint finish. These contaminates need to be manually cleaned from the sieve screen on a regular basis. Your units may be specified as the Box Sieve, the Easy-Screen sieve or the Pancake sieve, the choice depending on a number of factors including the number of guns use in the system, the type of powder, etc. Refer to Section 3 of this manual as specific instructions need to be followed within the general context of the PCS system. For easy screen units, a separate manual is supplied. 1. Check that the sieve screen is clean. (The frequency of this check will

depend on a number of factors unique to your system.)

DO NOT clean contaminants into the booth or any other subsystem in the Powder Coating installation.

2. Ensure the sieve screen is properly earthed. 3. Ensure the vibrator is correctly mounted and the motor is operating

with the correct direction of rotation. If the rotation is correct, the powder will travel downwards through the internal surfaces of the sieve.

4. Check that the hopper venting is correctly fitted with no hose

blockages and that, if fitted, the vent assist is adjusted in accordance with section 3 of this manual.

5. Carry out a Powder Test on your powder as outlined in Figure 6.

There are numerous solutions to the problem of sieving waxy powder with a vibratory sieve. These include: (a) Checking the operation of air drier. (b) Placing a small solid object on the screen such as a coin or a

golf ball to help break up the powder.

(c) Consider fitting a screen with a coarser mesh, such as 890 micro (contact your local sales outlet for information on this)

(d) Contact your powder supplier to ascertain the suitability of the

supplied powder to your operation.

1. General

2. Operation

3. Troubleshooting

Appendix 6-2



1. TEST EQUIPMENT

2. TEST PROCEDURE

Documents

Powder Conditioning Systememanuals.nordson.com/finishing/files/ChinaManufacturing/... · 2013-05-06 · Nordson China, China Sourcing Operation 828 Xin Jin Qiao Road Pudong New District