SINGLE CHAMBER BLAST MACHINE MODELS 1028 AND 1042 O. M.04124 DATE OF ISSUE: 01/15/77 REVISION: K, 07/13 Do not proceed with these instructions* until you have READ the orange cover of this MANUAL and YOU UNDERSTAND its contents. © 2013 CLEMCO INDUSTRIES CORP. One Cable Car Dr. Washington, MO 63090 Phone (636) 239-4300 Fax (800) 726-7559 Email: [email protected] www.clemcoindustries.com These WARNINGS are included for the health and safety of the operator and those in the immediate vicinity. *If you are using a Clemco Distributor Maintenance and Part Guide, refer to the orange warnings insert preceding the Index before continuing with the enclosed instructions. Electronic files include a Preface containing the same important information as the orange cover.

MODELS 1028 & 1042 BLAST MACHINES1.0 INTRODUCTION1.1 Scope 1.1.1 These instructions include the set-up, operation, maintenance, troubleshooting, and replacement parts for Clemco Model 1028 (0.5 cu ft. capacity) and Model 1042 (1.0 cu ft. capacity) blast machines. The instructions cover remote-controlled machines (when an operator controls blasting from a pneumatically operated control handle mounted at the nozzle), and manually-controlled machines (a blast machine fitted with simple ball valves at the inlet and outlet, that must be manually opened and closed to start and stop the blast process)....

MODELS 1028 & 1042 BLAST MACHINES Model 1028, 0.5 Cu Ft Shown with remote controls Outlet Valve Compressed Air Supply Hose Connection Point Inlet Valve Manual Outlet Valve Optional Screen Model 1042, 1.0 Cu Ft. Shown with manual valves Manual Inlet Valve Compressed Air Supply Hose Connection Point Choke Valve Pop-up Valve Inspection Door Abrasive Metering valve Blast-Hose Connection WARNING Welding, grinding, or drilling on the blast machine could weaken the vessel. Compressed air pressure could cause a weakened blast machine to rupture, resulting in death or serious injury. Welding, grinding,...

MODELS 1028 & 1042 BLAST MACHINES Compressed Air and Abrasives Consumption Consumption rates are based on abrasives that weigh 100 pounds per cubic foot Pressure at the Nozzle (psi) Air, Power • Air requirements were measured by a flow meter under actual blasting conditions, and are therefore lower than figures for air alone, with no abrasive. • Horsepower requirements are based on 4.5 cfm per horsepower. • Figures are for reference only, and may vary for different working conditions. Several variables, including metering valve adjustments, can affect abrasive flow. • Figures show approximate...

MODELS 1028 & 1042 BLAST MACHINES1.4 Abrasive _A WARNING_ Obtain a material safety data sheet (MSDS) for the blast abrasive. Abrasive blasting with sands containing crystalline (free) silica can lead to serious or fatal respiratory disease. As OSHA recommends, do not use abrasives containing more than trace amounts (more than one percent) free silica. 1.4.7 Glass Bead: Most beads are treated to ensure free-flow operation even under moderately high-humidity. Glass beads subjected to excessive moisture may be reused after thorough drying and breaking up any lumps. Clean dry air is a necessity....

MODELS 1028 & 1042 BLAST MACHINES 3.1.2 Moving a blast machine Never manually move a blast machine when it contains abrasive. Empty (model 1028 and 1042) machines may be moved when the following criteria are met. 3.1.2.1 An empty machine may be moved manually on level flat surfaces. 3.1.2.2 Move the machine by pushing it in a forward direction. Do not back-up while moving the machine, as potential tripping hazards cannot be seen. 3.2.1 Locate the compressor upwind and/or away from the blasting operation to prevent contaminated air from entering the compressor intake. 3.2.2 Connect a 3/4" ID or...

MODELS 1028 & 1042 BLAST MACHINES 3.3 Manual Blasting. Refer to Section 3.4 for blasting with remote controls. 3.3.1 Make sure the ventilation system is running. 3.3.2 Make sure the nozzle fixture is secure and that the nozzle is directed only toward objects intended to be blast cleaned. OSHA requires remote controls on all blast machines when an operator controls the nozzle. Ignoring this warning places the operator at risk of severe injury or death from accidents that could occur from an uncontrolled blast nozzle. 3.3.3 Make sure the blasting area is contained. Abrasive blasting produces harmful...

MODELS 1028 & 1042 BLAST MACHINES _A WARNING_ OSHA requires remote controls on all blast machines when an operator controls the nozzle. Do not tie down the control handle or attempt to bypass any part of the remote control system. Doing so will defeat the purpose of the fail-to-safe feature of the remote control. Severe injury or death can result from uncontrolled blasting. 3.4.7 If the abrasive metering valve is closed as instructed, in Section 3.2.6, only air will exit the nozzle. Adjust the metering valve per Section 3.5. 3.4.8 To stop blasting, release the control handle lever. The safety...

MODELS 1028 & 1042 BLAST MACHINES 3.7.7 If the nozzle was removed, thoroughly inspect the nozzle holder threads for wear before installing the nozzle washer and attaching the nozzle. 3.8.1 When finished blasting, and after cleanup is completed, remove the respirator outside the respirator-use area and where the air is safe to breathe. 3.8.2 Depressurize the blast machine. 3.8.3 Close the compressed-air supply valve at the compressor. 3.8.4 Drain receiver tank, filters, and water collecting devices, and bleed the compressed-air supply hose. 3.8.6 Cover the machine when not in use. Refer to Section...

MODELS 1028 & 1042 BLAST MACHINES 4.3 Monthly Inspection 4.3.1 With the air off, before blasting, inspect the • Check the pop-up valve’s urethane coating for cracks and grooves. Replace the pop-up valve at the first sign of wear. See Section 5.3. • Inspect the rubber pop-up seal, and replace at the first sign of wear, drying, or cracking. See Section 5.4. Failure to observe the following before performing any maintenance could cause serious injury or death from the sudden release of compressed air. • Depressurize the blast machine. • Lockout and tagout the compressed air supply. • Bleed the air...