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OBSOLETE

Model SCF-M1 Handgun

1997 Nordson Corporation

108 236B

Issued 1/97

Manual 4-26

See Table 1. Check the labels on your solvent containers.
Halogenated hydrocarbon solvents can be recognized if any of the
following elements are listed in the name of the product or as an
ingredient:

Element

Symbol

Prefix

Flourine

“Flouro-”

Chlorine

“Chloro-”

Bromine

“Bromo-”

Iodine

“Iodo-”

If you are now using halogenated hydrocarbon solvents in pressurized
systems with aluminum components, perform the following steps:

Pump the system empty, shut off the pumps, and relieve the system
pressure.

Disassemble and inspect the system components. Replace any
damaged or corroded parts.

Thoroughly clean all noncorroded parts with nonhalogenated
hydrocarbon.

Contact your coatings, solvent, or adhesive supplier for a
nonhalogenated solvent to thoroughly flush the entire system before
operating it.

If you must continue to use halogenated hydrocarbon solvents,
consult your Nordson representative about compatible Nordson
components.

Table 1 Solvents Containing Halogenated Fluids

Chlorinated Solvents

Iodinated Solvents

Brominated Solvents

Fluorocarbon Solvents

Carbon Tetrachloride

Ethyl Iodide

Ethylene Dibromide

Dichlorofluoromethane

Chloroform

Methyl Iodide

Methyl Bromide

Trichlorofluoromethane

Ethylene Dichloride

N-butyl Iodide

Methylene Chlorobromide

Freon

Methylene Chloride

Propyl Iodide

1-1-1 Trichloroethane

Monochlorobenzene

Orthodichlorobenzene

Perchloroethylene

Trichloroethylene

Material and Solvent
Precautions

(contd)

Summary of Contents for SCF-M1

Page 1: ...O B S O L E T E SCF M1 Handgun Part 108 236B NORDSON CORPORATION AMHERST OHIO USA ...

Page 2: ...or written consent of Nordson Corporation The information contained in this publication is subject to change without notice Trademarks 100 Plus Blue Box ChromaFlex CleanSleeve CleanSpray Control Coat Cross Cut Easy Coat Econo Coat Excel 2000 Flow Sentry Isocoil Isocore Iso Flo Nordson the Nordson logo PRX Pro Flo RBX Ready Coat Rhino SCF Select Coat Select Cure Shur Lok Smart Spray System Sentry T...

Page 3: ...tem or Component Malfunction 8 Maintenance and Repair 8 Material and Solvent Precautions 10 Disposal 13 2 Description 13 The UNICARB System 14 Theory of Operation 14 3 Installation 15 4 Operation 16 Safety 16 Startup 16 Shutdown 17 5 Maintenance 17 Daily 17 Periodically 18 6 Troubleshooting 18 7 Repair 18 Handgun Disassembly 18 Handgun Reassembly 23 8 Parts 27 Using the Illustrated Parts List 27 S...

Page 5: ...this manual for performing specific tasks and working with specific equipment S store this manual within easy reach of personnel installing operating maintaining or repairing this equipment S follow all applicable safety procedures required by your company industry standards and government or other regulatory agencies Refer to the National Fire Protection Association NFPA standard 33 and to federa...

Page 6: ...ire open flames and smoking prohibited WARNING Wear protective clothing safety goggles and approved respiratory protection Failure to observe may result in serious injury WARNING Hot Risk of burns Wear heat protective clothing safety goggles with side shields and or heat protective gloves depending on the symbol shown WARNING System or material pressurized Relieve pressure Failure to observe this ...

Page 7: ...death or property and equipment damage Use this equipment only as described in this manual Nordson Corporation cannot be responsible for injuries or damages resulting from nonstandard unintended applications of its equipment This equipment is designed and intended only for the purpose described in this manual Uses not described in this manual are considered unintended uses and may result in seriou...

Page 8: ... locking manual shutoff valves in the air supply lines to the system This allows you to relieve air pressure and lock out the pneumatic system before undertaking maintenance and repairs S Install a locking disconnect switch or breaker in the service line ahead of any electrical equipment S Use only electrical wire of sufficient gauge and insulation to handle the rated current demand All wiring mus...

Page 9: ...lations S If safety devices must be removed for installation install them immediately after the work is completed and check them for proper functioning Only qualified personnel physically capable of operating the equipment and with no impairments to their judgement or reaction times should operate this equipment Read all component manuals before operating this equipment A thorough understanding of...

Page 10: ...ts temperatures pressures and material composition for all equipment that you are working with Recognize potential hazards associated with these and exercise appropriate caution S Wear shoes with conductive soles such as leather or use grounding straps to maintain a connection to ground when working with or around electrostatic equipment S Do not wear or carry metallic objects jewelry or tools whi...

Page 11: ...High pressure compressed air can be injected under the skin and cause serious injury or death S Do not use materials that will corrode the equipment S Do not attempt to operate electrical equipment if standing water is present S Wash exposed skin frequently with soap and water especially before eating or drinking Do not use solvents to remove coating materials from your skin Operators should also ...

Page 12: ... manuals S Do not service or adjust any equipment unless another person trained in first aid and CPR is present S Disconnect lock out and tag electrical power at a disconnect or breaker in the service line ahead of electrical equipment before servicing S Relieve air and fluid pressures before servicing equipment Follow the specific instructions in this manual S Use only genuine Nordson replacement...

Page 13: ...aintenance program S Check all ground connections periodically with a megohm meter Resistance to ground must not exceed one megohm If sparks or arcing occur shut down the system immediately S Connect all disconnected equipment ground cables and wires after servicing the equipment Ground all conductive equipment WARNING Service lines connected to panel disconnect switches will still be energized un...

Page 14: ...l immediately cool the affected skin with lots of cool clean water Do not try to remove hot melted material from the skin Seek immediate medical attention High pressure fluids unless they are safely contained are extremely hazardous A jet of high pressure fluid can act like a knife or needle penetrate skin and muscle and inject itself into your body Injected fluids can cause toxic poisoning Do not...

Page 15: ...ection and can lead to an injection injury S Always relieve system pressure before servicing equipment Trigger all applicators and bleed off system pressure Halogenated hydrocarbon solvents can cause an explosion when used with aluminum components in a pressurized fluid pumping system pumps heaters filters valves spray guns and tanks The explosion could cause serious bodily injury death or substan...

Page 16: ... damaged or corroded parts S Thoroughly clean all noncorroded parts with nonhalogenated hydrocarbon S Contact your coatings solvent or adhesive supplier for a nonhalogenated solvent to thoroughly flush the entire system before operating it S If you must continue to use halogenated hydrocarbon solvents consult your Nordson representative about compatible Nordson components Table 1 Solvents Containi...

Page 17: ...andgun non circulating The Nordson Model SCF M1 airless handgun is used with the Nordson UNICARB Systems The handgun sprays a mixture of super critical carbon dioxide CO2 and heated pressurized coating materials resins There are two versions of the gun S Non circulating hose with a rigid hydraulic inlet fitting 475 g S Circulating hose with rigid hydraulic inlet and outlet fittings 540 g All versi...

Page 18: ... percent The system supplies the mixture to the handgun s at a pressure of 82 7 172 3 bar 1200 2500 psi and a temperature of 38 82 _C 100 180 _F See the documentation supplied with your Nordson UNICARB system for further information NOTE The coating materials must be specially formulated for use with the UNICARB systems Contact your Nordson representative the Union Carbide Corporation or your coat...

Page 19: ...o respond properly to certain conditions can result in equipment damage and personal injury WARNING High pressures are present in this system High pressure fluids and air are injection hazards Do not place any part of your body in front of the gun nozzle drain ports or any leak in the system Do not disconnect any air or hydraulic fittings without first relieving air or hydraulic pressure WARNING T...

Page 20: ...ARNING The material contains carbon dioxide CO2 and must be sprayed in a well ventilated area While CO2 is not toxic large concentrations of it can be hazardous 1 Check all connections for tightness Fill the pump solvent chambers if necessary Refer to the Nordson UNICARB System manual 2 Make sure the trigger is locked 3 Supply compressed air to the system 4 Start up the UNICARB system according to...

Page 21: ...anifold ball valves 7 Trigger the gun s to relieve the line pressure and open close the filter drain off valve 8 Disconnect and lock out all electrical power to the system 9 Remove the gun s from the system and clean Inspect the guns for wear or damage Daily and periodic maintenance procedures are described below 1 Follow the system maintenance checks outlined in the Nordson UNICARB System manual ...

Page 22: ...below lists the common troubleshooting procedures for the SCF M1 handgun Problem Possible Cause Corrective Action 1 Leaking around the nozzle or ball and seat Dirty or damaged sealing surfaces Remove and clean the nozzle or ball and seat Replace if necessary 2 Spitting Dirty or worn ball and seat Clean or replace the ball and seat Dirty nozzle Clean the nozzle 3 Leaking around the packing cartridg...

Page 23: ...verheated coating materials b Turn OFF the power to the heaters if used with your system Do not turn off the circulating pump until the material in the system has cooled c Reduce the pump air supply pressure to zero and shut OFF the system air supply d Shut OFF the CO2 booster pump if used e Close the outlet and inlet manifold ball valves f Disconnect and lock out all electrical power to the syste...

Page 24: ...idge wire fits into the slot on the trigger so it can be correctly reinstalled 5 See Figure 4 Remove the pan head screw 5 and pivot 1 that secure the trigger 2 to the gun handle 3 Carefully slide the trigger free from the packing cartridge wire 4 0426004A 1 5 3 2 4 Fig 4 Trigger removal 1 Pivot 2 Trigger 3 Handle 4 Packing cartridge wire 5 Pan head screw Handgun Disassembly contd ...

Page 25: ...e extension 1 to the handle 5 0426005A 1 2 3 4 7 8 6 5 Fig 5 Extention removal 1 Extension 2 Insulating gasket 3 Insulating sleeve 4 Stop sleeve 5 Handle 6 Screw insulator 7 Washer 8 Screw 7 Remove the extension 1 insulating gasket 2 insulating sleeve 3 screw insulators 6 and stop sleeve 4 from the handle 5 Inspect all the components and replace if necessary Handgun Disassembly contd ...

Page 26: ...tridge 9 Unscrew and remove the packing cartridge 4 from the extension 2 10 Unscrew the ball tip assembly 3 from the packing cartridge 4 Clasp the hex nut on the packing cartridge with a wrench Use a second wrench to clasp the flats on the ball tip assembly and unscrew the ball tip assembly from the packing cartridge Inspect and replace if necessary 11 Clean all the parts before reassembly Use the...

Page 27: ...w the ball tip assembly 2 into the packing cartridge 3 and tighten securely 0426007A 1 2 3 Fig 7 Installing the packing cartridge 1 Extension 2 Ball tip assembly 3 Packing cartridge 2 Carefully insert the packing cartridge 3 into the extension 1 to avoid damaging the cartridge seal Tighten the cartridge until it stops Handgun Reassembly ...

Page 28: ...ion 1 Extension 2 Insulating gasket 3 Insulating sleeve 4 Stop sleeve 5 Screw insulator 6 Washer 7 Screw 8 Handle 4 Install the insulating sleeve 3 into the handle 8 Hold the insulating gasket 2 in place and install the extension 1 onto the handle Make sure the end of the packing cartridge slides into the stop sleeve 4 5 Install the screw insulators 5 washers 6 and screws 7 into the handle 8 to se...

Page 29: ... the trigger to the handle 3 with the pivot 6 and pan head screw 5 Tighten the screw securely 0426009A 6 5 4 3 2 1 7 Fig 9 Installing the nozzle and trigger 1 Nozzle and retaining ring 2 Trigger 3 Handle 4 Packing cartridge wire 5 Pan head screw 6 Pivot 7 Extension 7 Insert the nozzle inside the retaining ring and screw the nozzle and retaining ring 1 onto the extension 7 Tighten the retaining rin...

Page 30: ...ts reserved 108 236B Issued 1 97 Manual 4 26 8 See Figure 10 Install the connector s 1 onto the gun extension 2 0426003A 1 2 Fig 10 Installing the material fittings 1 Connector 2 Extension 9 Lock the trigger and attach the hose s to the connector s 1 Handgun Reassembly contd ...

Page 31: ...parately The Description column gives the part name as well as its dimensions and other characteristics when appropriate Indentions show the relationships between assemblies subassemblies and parts Item Part Description Quantity Note 000 000 Assembly 1 1 000 000 S Subassembly 2 A 2 000 000 S S Part 1 S If you order the assembly items 1 and 2 will be included S If you order item 1 item 2 will be in...

Page 32: ...Á S Sleeve stop ÁÁÁÁÁ ÁÁÁÁÁ 1 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 11 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 973 174 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ S Connector male 5 16 T 9 16 18 str thd ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 2 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 12 ÁÁÁÁÁ ÁÁÁÁÁ 983 600 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ S Washer bowed ÁÁÁÁÁ ÁÁÁÁÁ 1 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 13 ÁÁÁÁÁ ÁÁÁÁÁ 245 905 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ...

Page 33: ...ndgun 29 1997 Nordson Corporation All rights reserved 108 236B Issued 1 97 Manual 4 26 0426010A 2 3 7 1 4 10 8 17 19 18 14 16 12 15 6 5 11 13 9 20 21 Fig 11 SCF M1 gun with circulating hose SCF M1 Handgun with Circulating Hose contd ...

Page 34: ...ÁÁ S Sleeve stop ÁÁÁÁÁ ÁÁÁÁÁ 1 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 11 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 972 029 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ S Connector male 37 1 2 20 x 1 4 npt ss ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 2 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 12 ÁÁÁÁÁ ÁÁÁÁÁ 983 600 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ S Washer bowed ÁÁÁÁÁ ÁÁÁÁÁ 1 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 13 ÁÁÁÁÁ ÁÁÁÁÁ 245 905 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ...

Page 35: ...gun 31 1997 Nordson Corporation All rights reserved 108 236B Issued 1 97 Manual 4 26 0426011A 2 3 7 1 4 10 8 17 19 18 14 16 12 15 6 5 13 9 20 21 11 Fig 12 SCF M1 gun with non circulating hose SCF M1 Gun with Non Circulating Hose contd ...

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