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Instructions-Parts
®
Merkur Heated
313255F
Spray Packages
ENG
For finishing and coating applications requiring heated materials, in hazardous or
non-hazardous locations. For professional use only.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
See page 5 for model information, including maximum working pressures and approvals.
Model Model
G28C18 G30W82
ti13017a
ti13016a
ll 2 G c T2
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Related Manuals Contents Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Preventive Maintenance Schedule . . . . . . . . . . 17 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Tighten Threaded Connections . . . . . . . . . . . . . 17 Merkur 28:1 Heated Packages Flush the Pump . . . . . .
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Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama- tion point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable. WARNING FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To he
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Warnings WARNING EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury. � Do not operate the unit when fatigued or under the influence of drugs or alcohol. � Do not exceed the maximum working pressure or temperature rating of the lowest rated system component. See Technical Data in all equipment manuals. � Do not leave the work area while equipment is energized or under pressure. Turn off all equipment and follow the Pressure Relief Procedure in this manual when equipment is not in
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Models Models Check the identification plate (ID) for the 6-digit part number of your package. Use the following matrix and tables to define the components of your package. For example, package number G30W80 represents a Merkur package (G), with a 30:1 ratio pump (30), wall mounting (W), and the components shown for (80) in the table on page 6. Wall mount Cart mount ID ID ti12326a ti12327a G30 W 80 Second and Third Digits Fourth Digit Fifth and Sixth Digit First Digit (Ratio) (Mounting Type) (
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Models Merkur 28:1 Heated Packages (G28Wxx and G28Cxx) Maximum Inlet Air Pressure: 100 psi (0.7 MPa, 7 bar) Maximum Fluid Working Pressure: 2800 psi (19.3 MPa, 193 bar) Model Air Controls Hoses Options Gun Maximum Pump Gun Fluid Gun Fluid Flow Pump Wall Cart Pump and Fluid Whip Air Siphon Fluid Rate Mount Mount Assembly Heater Gun Only Gun Hose Hose Hose Kit Filter DataTrak gpm (lpm) G28W07 G28C05 W28EAS 120V XTR ✔✔✔ ✔✔ G28W08 G28C06 W28EBS 120V XTR ✔✔✔ ✔✔✔ G28W09 G28C07 W28EAS 240V XTR ✔ ✔
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Models Merkur 48:1 Heated Packages (G48Wxx) Maximum Inlet Air Pressure: 100 psi (0.7 MPa, 7 bar) Maximum Fluid Working Pressure: 4800 psi (33.1 MPa, 331 bar) Model Air Controls Hose Options Gun Maximum Pump Gun Fluid Gun Fluid Flow Pump Wall Cart Pump and Fluid Whip Air Siphon Fluid Rate Mount Mount Assembly Heater Gun Only Gun Hose Hose Hose Kit Filter DataTrak gpm (lpm) G48W17 ----- W48CAS 120V ✔ 1.2 (4.5) G48W18 ----- W48CBS 120V ✔ ✔ 0 313255F 7
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Installation Installation A V Y B S W C T X ti13112a D E U F R G P H J N M K L ti13007a FIG. 1: Typical Installation (Your package may not include all items shown.) Key: A Air Shutoff Valve (optional HSpray Gun S Gun Air Pressure Gauge accessory) J Gun Swivel T Gun Air Pressure Regulator B Air Filter (optional accessory) K Fluid Whip Hose U Bleed Type Master Air Valve C Air Line Moisture Trap and Drain L Electrically Conductive, Air and V DataTrak Valve (optional accessory) Heated Fluid Supply/
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Installation General Information Wall Mount Packages 1. Be sure the wall can support the weight of the Reference numbers and letters in parentheses in pump, bracket, hoses and accessories, as well as the text refer to the callouts in the figures and the the stress caused during operation. parts drawing. 2. Position the wall bracket about 4–5 ft (1.2–1.5 m) above the floor. For ease of operation and service, make sure the pump air inlet, fluid inlet, and fluid Always use Genuine Graco Part
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Installation � The 3-way valve (M) allows choice to circulate fluid Supplied Components back to the pump or return it to the supply container. See FIG. 1. Components vary by package ordered. � A fluid drain valve (G) relieves fluid pressure in the See tables on pages 6 to 7. Your package may include: hose and gun. � The red-handled bleed-type master air valve (U) is �The fluid heater (D) heats the fluid as it passes required in your system to relieve air trapped through, to maintain the c
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Installation 8. Solvent pails used when flushing: follow your local Grounding code. Use only metal pails, which are conductive, placed on a grounded surface. Do not place the pail on a nonconductive surface, such as paper or card- board, which interrupts the grounding continuity. 9. To maintain grounding continuity when flushing or The equipment must be grounded. Grounding reduces relieving pressure, hold a metal part of the spray the risk of static and electric shock by providing an gun
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Installation Electrical Housing Access Hose Connections See FIG. 1, page 8. 1. Attach one end of the air hose to the gun air regula- tor (T, G40 spray guns only). 2. Attach the other end of the air hose to the air inlet at the base of the gun (G40 spray guns only). Remove Loosen 3. Attach gun swivel (J) to the gun fluid inlet. outer two inner two heater8 heater 4. Attach one end of the fluid whip hose (K) to the gun bracket bracket swivel and the other end to the recirculating mani- screw
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Operation Operation Pressure Relief Procedure Flush Before Using Equipment The equipment was tested with lightweight oil, which is left in the fluid passages to protect parts. To avoid con- taminating your fluid with oil, flush the equipment with a compatible solvent before using the equipment. See Flush the Pump, page 17. 1. Engage the trigger lock. 2. See FIG. 1. Turn off the bleed-type master air valve Trigger Lock (U). 3. Disengage the trigger lock. 4. Hold a metal part of the gun firmly
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Operation 8. Open bleed-type air valve (U). Slowly turn pump air Wet Cup regulator (X) clockwise, increasing pressure until pump starts. 9. Cycle pump slowly until all air is pushed out and pump and hoses are fully primed. Before starting, fill wet cup 1/3 full with Graco Throat 10. Units with runaway protection only: disable the Seal Liquid (TSL) or compatible solvent. prime/flush function by pushing the prime/flush but- ton on the DataTrak. 11. Release gun trigger and lock trigger safet
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Operation Adjust the Atomization Adjust the Spray Pattern Packages with Airless Guns The spray tip orifice and spray angle determine pattern coverage and size. When you need more coverage, use 1. Do not turn on atomizing air supply. Fluid pressure a larger spray tip rather than increasing fluid pressure. is controlled by the air pressure supplied to the Align guard horizontally to spray a horizontal pattern. pump (pump air regulator). Set fluid pressure at low Align guard vertically to sp
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Operation 3. See FIG. 7. For narrower pattern, turn pattern adjustment valve knob (AA) counterclockwise (out). If pattern is still not narrow enough, increase air pressure to gun slightly or use different size tip. too little air correct no air amount of ti0792A air FIG. 7. Spray Pattern Problems Shutdown Follow Pressure Relief Procedure, page 13. Always flush the pump before the fluid dries on the dis- placement rod. See Flush the Pump on page 17. 16 313255F
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Maintenance Maintenance 1. Follow Pressure Relief Procedure, page 13. Preventive Maintenance 2. Remove tip guard and spray tip from gun. Refer to Schedule separate gun manual. The operating conditions of your particular system determine how often maintenance is required. Establish 3. Place siphon tube in grounded metal pail containing a preventive maintenance schedule by recording when cleaning fluid. and what kind of maintenance is needed, and then determine a regular schedule for checki
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Troubleshooting Troubleshooting NOTE: Check all possible problems and causes before disassembling the pump. Relieve the pressure before checking or servicing the equipment. F Problem Cause Solution Pump fails to operate. Restricted line or inadequate air sup- Clear line or increase air supply. ply; closed or clogged valves. Check that the valves are open. Obstructed fluid hose or gun; fluid Open, clear*; use hose with larger ID. hose ID is too small. Fluid dried on the displacement rod. Clea
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DataTrak Controls and Indicators DataTrak Controls and Indicators Key for FIG. 8 AA Runaway Limit, in cycles per minute (user settable; RK Reset Key (Resets faults. Press and hold for 3 seconds to 00=OFF) clear the batch totalizer.) Push to toggle between flow rate AB Lower Displacement (user settable) and cycle rate. CF Cycle/Flow Rate AC Flow Rate Units (user settable to /min, gpm [US], gpm BT Batch Totalizer GT Grand Totalizer [Imperial], oz/min [US], oz/min [Imperial], l/min, or cc/min) R
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DataTrak Operation DataTrak Operation NOTE: The display (AE) will turn off after 1 minute to 2. Runaway Screens 1 and 2: To reset the runaway save battery life. Press any key to wake up the display. solenoid, close the master air valve (E). Wait for air to completely bleed off the air motor. NOTICE To prevent damage to the soft key buttons, do not press the buttons with sharp objects such as pens, plastic cards, or fingernails. Setup Mode 3. Runaway Screens 3 and 4: After the air is bled of
