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Scarifiers
Needleguns
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2-Desco_NeedleGun-Model25-40-40EX-Manual_Sep2016.pdf
September 2016
Model 25, 40 & 40EX Needlegun
Pistol Grip and Extended Reach
Part
Description
Model 25 – Pistol Grip (not pictured)
130.2256
Needlegun, System Shroud(Flat, IC), needle reload, whip assy., oil bottle, tool kit, carry case.
130.051
Needlegun, Flat
130.052
Needlegun, Inside
130.048
Needlegun, Bare
Model 40 – Pistol Grip
130.2406
Needlegun, System Shroud(Flat, IC), needle reload, whip assy., oil bottle, tool kit, carry case.
130.050
Needlegun, Flat
130.052
Needlegun, Inside
130.049
Needlegun, Bare
Model 40EX – Extended Reach
180.0141
Needlegun, Flat
180.0142
Needlegun, Inside
180.0140
Needlegun, Bare
23031 Arroyo Vista ● Rancho Santa Margarita, CA 92688
949.858.7400 ● 949.858.9141 fax ● 800.337.2648 toll free
www.descomfg.com ● info@descomfg.com
Configurations
Accessories Furnished
Shroud(Flat)
Shroud(Inside corner)
None
Shroud(Flat)
Shroud(Inside corner)
None
Shroud(Flat)
Shroud(Inside corner)
None
DESCO Mfg. Co., Inc.
Pneumatic
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Table of Contents
Related Manuals for Desco 25
Summary of Contents for Desco 25
- Page 1 Walk-Behind Scarifiers Impact Tools Sanders Configurations Part Description Accessories Furnished Model 25 – Pistol Grip (not pictured) 130.2256 Needlegun, System Shroud(Flat, IC), needle reload, whip assy., oil bottle, tool kit, carry case. 130.051 Needlegun, Flat Shroud(Flat) 130.052 Needlegun, Inside Shroud(Inside corner) 130.048...
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Page 2: Table Of Contents
Inspection, Cleaning and Lubrication Procedure ............9 4.2.3 Assembly Procedure ..................... 10 4.2.4 Airway Lubrication Procedure ..................11 CHAPTER 5 – TROUBLESHOOTING....................12 CHAPTER 6 – SCHEMATICS......................14 40 ..............14 OLLECTOR ODEL ODEL 25....................... 15 EEDLEGUN ODEL 40....................... 16 EEDLEGUN ODEL... -
Page 3: Chapter 1 - General Information
Innovative Solutions Chapter 1 – General Information Introduction This publication describes the Desco Model 25, Model 40 and Model 40EX needle scalers. The ergonomic design offers significant advantages over ordinary needle scalers, including: a) low vibration, b) low air consumption and, c) 28 needles –... -
Page 4: Main Applications
Replacement filter for whip assembly 500.015 Oil bottle 130.043 Dust collector, Model 25, flat style 130.008 Dust collector, Model 25, inside corner style 130.055 Needle holder, Model 25, for 3mm needles 130.077 Needle holder, Model 25, for 2mm needles 130.059 Dust collector, Model 40, flat style 130.060... -
Page 5: Chapter 2 - Safety Precautions
For best results, drain the moisture from your compressor daily. Idle Running Idle operation will shorten the life of the tool and needles and should be avoided. Model 25, 40 and 40EX Needlegun Page 3 September 2016... -
Page 6: Work Area
7. Check for misaligned or binding of moving parts, breakage of parts, and any other condition that may affect the tool’s operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly maintained tools. Model 25, 40 and 40EX Needlegun Page 4 September 2016... -
Page 7: Chapter 3 - Operating Instructions
Stop machine, shut off air supply, and disconnect hose from machine. To replace filter, simply remove end cap, remove old filter, insert new filter, and replace cap as shown previously in Figure 3-1. Figure 3-1 – Filter-lubricator Model 25, 40 and 40EX Needlegun Page 5 September 2016... -
Page 8: Operation
B. Wrong – Do not hold the needles at a sharp angle to the surface. C. Right – Hold needles at a slight angle of about 85° to the surface. Model 25, 40 and 40EX Needlegun Page 6 September 2016... -
Page 9: Post-Operation And Stowage
Wipe off all dust and dirt with a dry rag. Check for broken or worn needles. Replaced as necessary. Remove, coil, and secure air hose with a piece of string or wire. Model 25, 40 and 40EX Needlegun Page 7 September 2016... -
Page 10: Chapter 4 - Maintenance Instructions
2) Rotate nose piece to the right and pull forward to remove. C. Remove Spring, Needles and Needle Holder – Grasp needle cluster and pull forward. The spring, needles and needle holder will come out as a unit. Model 25, 40 and 40EX Needlegun Page 8 September 2016... -
Page 11: Inspection, Cleaning And Lubrication Procedure
• Inspect for nicks or cracks; replaced as required. Pay close attention to a) the Pusher, a small plastic piece at the small end of the driver and, b) the Piston Ring. Replace either if damaged. Cont’d. on Next Page Model 25, 40 and 40EX Needlegun Page 9 September 2016... -
Page 12: Assembly Procedure
• Lubricate needle holder by placing a few drops of pneumatic tool oil on the outside rim and distributing by wiping with a clean cloth 4.2.3 Assembly Procedure A. Driver – Insert small end of driver into cylinder barrel. Model 25, 40 and 40EX Needlegun Page 10 September 2016... -
Page 13: Airway Lubrication Procedure
Lubricate the tool airway by placing 3-4 drops of pneumatic tool in the air fitting. Re-attach an air hose and run the tool for a few seconds to disburse the oil. Model 25, 40 and 40EX Needlegun Page 11 September 2016... -
Page 14: Chapter 5 - Troubleshooting
When air passes through the needlegun, but needles do not not move reciprocate, the most likely cause is the “Pusher” is missing or damaged. To resolve, disassemble, inspect and replace pusher as necessary. Model 25, 40 and 40EX Needlegun Page 12 September 2016... - Page 15 When air passes through the needlegun, and the needles move but with little or no power, the most likely cause is the piston ring is missing or damaged. To resolve, disassemble, inspect piston ring and replace as necessary. Model 25, 40 and 40EX Needlegun Page 13 September 2016...
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Page 16: Chapter 6 - Schematics
DESCO Innovative Solutions CHAPTER 6 – Schematics Dust Collector, Model 25 and Model 40 Part Description 750.076 Bolt 500.060 Brush 130.043 Shroud, Flat Style, Model 25 130.059 Shroud, Flat Style, Model 40 130.008 Shroud, Inside Corner, Model 25 130.060 Shroud, Inside Corner, Model 40 500.060... -
Page 17: Needlegun , Model 25
Valve stem 550.968 Housing 550.982 Valve spring 550.969 Snap ring 550.983 O-Ring valve cap 550.970 Support ring 550.984 Valve cap 550.971 Spring 550.985 Roll pin 550.972 Limit ring 550.986 Valve lever Model 25, 40 and 40EX Needlegun Page 15 September 2016... -
Page 18: Needlegun , Model 40
11 550.827 Spring 26 550.839 O-Ring for Valve Cap 12 550.828 Limit Ring 27 550.840 Valve Cap 13 550.987 Ball 28 550.841 Roll Pin 14 550.829 Cylinder 29 550.842 Valve Lever Model 25, 40 and 40EX Needlegun Page 16 September 2016...
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