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MANUAL
Alpha
PSG-125 Wet
®
Cutting Kit
Instruction Manual
Memory Wrap
Hook & Loop Strap
PSG-125*
Blade Guard
Loc-Line Assembly
Water Hose
Garden Hose
Connection
Water Quick Coupler
with Shut-Off Valve
* TOOL INCLUDED
Part No: 5480-1304
Version 10/2022
16 Park Dr Ste 9, Franklin, NJ 07416 • 800-648-7229
www.alpha-tools.com
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Summary of Contents for Alpha Professional Tools PSG-125
- Page 1 MANUAL Alpha PSG-125 Wet ® Cutting Kit Instruction Manual Memory Wrap Hook & Loop Strap PSG-125* Blade Guard Loc-Line Assembly Water Hose Garden Hose Connection Water Quick Coupler with Shut-Off Valve * TOOL INCLUDED Part No: 5480-1304 Version 10/2022 16 Park Dr Ste 9, Franklin, NJ 07416 • 800-648-7229...
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Page 2: Table Of Contents
Exhaust Vent ................16 Optional Wet Cutting ..............17 PSG-125 Pneumatic Angle Grinder Schematic ......... 18 PSG-125 Pneumatic Angle Grinder Parts List ........19 Additional Hoses (Air Hose) .............. 21 Accessories and Factory Service ............27 Product Registration ................26... - Page 3 Should components which have been described need to be ® exchanged, please contact your dealer or Alpha Professional Tools CAUTION! • Attach the Wet Blade Cutting Kit correctly by following the procedure in this instructional manual.
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Page 4: Introduction
INTRODUCTION ® Thank you for purchasing an Alpha PSG-125 Wet Cutting Kit. Please read this instruction manual thoroughly to ensure safe and correct use of the Pneumatic Angle Grinder. Keep this manual in a place where operators can access it easily whenever necessary. -
Page 5: Safety Instructions For Pneumatic Tools
State of California to cause cancer, birth defects, or other reproductive harm. Some examples of these chemicals are: - Lead from lead-based paints - Crystalline silica from bricks, cement and other masonry products, and - Arsenic and chromium from chemically-treated lumber. PSG-125 5” PNEUMATIC ANGLE GRINDER... - Page 6 19. USE SIDE HANDLES. Supplied with tool for control and safety. 20. STAY ALERT. Watch what you are doing and use common sense. Do not operate tool when you are tired, or under the influence of medication or alcohol. PSG-125 5” PNEUMATIC ANGLE GRINDER...
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Page 7: Psg-125 Overview
Air Consumption Max......... 33 CFM / 934 L/Min No Load RPM ................12,000 Weight .................4.6 lbs (2.1 kg) Length ..............11-3/4” (298mm) Air Inlet ................3/8” NPSM Spindle ..................5/8”-11 Max. Disc Capacity ............. 5” x 1/4” x 7/8” Max HP ..................1.4 HP PSG-125 5” PNEUMATIC ANGLE GRINDER... -
Page 8: Equipment Included
11. Washer & Seal Set (M12) ..........2 pc 12. Screw (M12 x 16) ...............1 pc 13. Inner Flange for Cutting .............1 pc 14. Lock Nut for Cutting ............1 pc 15. Height Adjustment Spacer ..........1 pc PSG-125 5” PNEUMATIC ANGLE GRINDER... -
Page 9: Additional Precautions For Using The Pneumatic Angle Grinder
The flange bolt must be tightened before starting to work with the machine. • The work piece must be secured if it is not heavy enough to prevent movement. • The tool is designed for cutting on horizontal surfaces. PSG-125 5” PNEUMATIC ANGLE GRINDER... -
Page 10: Air Pressure And Volume
Repeat the process to see if this will correct the variation ® in sound. If the problem continues, contact an authorized Alpha Repair Center for routine repair and maintenance. PSG-125 5” PNEUMATIC ANGLE GRINDER... -
Page 11: How To Add The Rust Inhibitor Oil
6. Depress the throttle lever varying the speed from very low to half speed, for thirty seconds. (See Fig. 5) Replacement Rust Inhibitor Oil Figure 5 ® can be purchased from Alpha Professional Tools (Part No. AIR-008). PSG-125 5” PNEUMATIC ANGLE GRINDER... -
Page 12: Filter/Regulator System
® Alpha recommends the F/R Manifold 53 CFM for single use with the PSG-125 (Part No.1030-0022). All F/R manifolds are available through our distributor network, and via our website. CONNECTING THE AIR SUPPLY The air Inlet for this pneumatic angle grinder is 3/8” NPT. Using a 3/8” or 1/2”... -
Page 13: Spindle Size
SPINDLE SIZE PSG-125 Pneumatic Angle Grinder has a 5/8”-11 spindle thread. ® The Alpha Maintenance and Usage Tip: • Do not leave the angle grinder submersed in water. This could expose the inner moving parts to moisture, which will shorten the life of the angle grinder. -
Page 14: Mounting Diamond Wheels
Flange for Cutting (Schematic No. 75) along with the Lock Nut for Cutting (Schematic No. 76) which is included in the box of the PSG-125. This Inner Flange for cutting is thicker and will provide clearance for installation of the straight cutting blade. -
Page 15: Attaching The Side Handle
Handle Bracket. The Handle Bracket will raise the Side Handle allowing more clearance between the material and Side Handle during cutting applications for more user comfort. Side Handle Figure 10 Side Handle Handle Bracket Washer & Seal Set Screw (M12x16) PSG-125 5” PNEUMATIC ANGLE GRINDER... -
Page 16: Operation
Releasing the throttle lever shuts down the motor. Figure 11 EXHAUST VENT The exhaust vent cover can be rotated 180 degrees to divert the air flow coming out of the Pneumatic Angle Grinder. Figure 12 PSG-125 5” PNEUMATIC ANGLE GRINDER... -
Page 17: Optional Wet Cutting
See below for the recommended usage. CAUTION! NOTE: When using the PSG-125 for wet cutting and grinding, point the spray nozzle away from the spindle shaft and tool and down towards the cutting area as shown in Figure 13 & 14. -
Page 18: Psg-125 Pneumatic Angle Grinder Schematic
PSG - 125 5” PNEUMATIC ANGLE GRINDER ALPHA ® SCHEMATIC PSG-125 5” PNEUMATIC ANGLE GRINDER... -
Page 19: Psg-125 Pneumatic Angle Grinder Parts List
Bevel Pinion Gear 3002-0022 O-Ring (21.5x1.5) 3002-0023 Ball Bearing (6000LLU) 3002-0024 Front End Plate 3002-0025 Spring Pin (2.5x5) 3002-0026 Cylinder 3002-0027 Vane (4 pc Set) 3002-0028 Key (3x8L) 3002-0029 Rotor 3002-0030 End Plate 3002-0031 Ball Bearing (609ZZ) PSG-125 5” PNEUMATIC ANGLE GRINDER... - Page 20 Valve Pin (4x22.8) 3002-0053 O-Ring (27x2) 3002-0054 Muffler 3002-0055 Exhaust Vent 3002-0056 Spring 3002-0057 Exhaust Cover 3002-0058 Spacer Screw with Standoff 3002-0059 Washer (5.3x10x0.3) 3002-0060 Screw (M5x8L) 3002-0065 Side Handle Assembly 3002-0062 Pin Wrench (P:32mm) PSG-125 5” PNEUMATIC ANGLE GRINDER...
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Page 21: Additional Hoses (Air Hose)
3/8” NPSM x 3/8” NPT Male 1030-0035 25ft./7.6m 3/8” NPSM x 3/8” NPT Male 1030-0037 30ft./9.1m 3/8” NPSM x 3/8” NPT Male 1030-0039 35ft./10.6m 3/8” NPSM x 3/8” NPT Male 1030-0041 40ft./12.1m 3/8” NPSM x 3/8” NPT Male PSG-125 5” PNEUMATIC ANGLE GRINDER... - Page 22 INSTRUCTIONS provides the highest quality parts and manufac- ® Alpha Professional Tools turing techniques in the manufacture of this product. In order to obtain the maximum effectiveness and provide the highest degree of safety, it is neces- sary to review and follow these instructions carefully before using the tool.
- Page 23 INSTALLATION OF WBC6KIT GUARD 1. Select the collar that is compatible for the make and model of the grinder (Refer to the Compatibility Chart) Plastic collar 2. Place the collar on the neck of the grinder. Position the Safety Guard over the collar with the shield facing backwards. Push Down until the Safety Guard is firmly seated on the base of grinders neck.
- Page 24 HOOK & LOOP STRAP INSTALLATION 1. Place the grinder on top of the Hook & Loop Strap. 2. Position the Hook & Loop Strap around the Water Hose Assembly and the grinder body. INSTALLATION OF EASYON-EASYOFF SLEEVE 1. Wrap the EasyOn-EasyOff Sleeve around the Water Hose Assembly and electrical cord.
- Page 25 CONNECTING THE WATER SUPPLY 6” WET BLADE CUTTING KIT...
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Page 26: Accessories And Factory Service
® (proof of purchase required). If Alpha Professional Tools defects during the warranty period, our obligation assumed under this warranty is limited to the repair or replacement of parts, without charge. This warranty does ®... -
Page 27: Product Registration
Note: Serial & Model Number must be included for proper registration. (800) 648-7229 Register online at: www.alpha-tools.com/productregistration.aspx Mail or Fax to: ® Alpha Professional Tools 16 Park Dr Ste 9, Franklin, NJ 07416 Fax: 800-286-0114 Photocopy of product registration form will be accepted. PSG-125 5” PNEUMATIC ANGLE GRINDER... - Page 28 16 Park Dr Ste 9, Franklin, NJ, NJ 07416 • 800-648-7229 • Fax: 800-286-0114 www.alpha-tools.com 2022 Alpha Professional Tools. All rights reserved. Copyright © 10/2022...
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