Instruction/ maintenance manual of the product G28C18 Graco Inc.
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Instr uctions-P ar ts Merkur ® Heated Spra y P ac ka g es 313255F ENG For finishing and coating appli cations requiring heated ma terials, in hazardous or non-hazardous locations. For pr ofessional use onl y . See page 5 f or model inf ormation, including maximu m working pressures and appro v als.
Related Manua ls 2 313255F Contents Related M anuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 313255F 3 Wa r n i n g s The f ollowing w arnings are fo r the setup , use , grounding, maint enance, and rep air of this equipment. The e xclama- tion point symbol ale r ts you to a gener al warning and the hazar d symbol ref ers to proc edure-specific risk.
Warnings 4 313255F EQUIPMENT MISUSE HAZARD Misuse can ca use death or serious injury . • Do not oper ate the unit when f atigue d or under the influence of drugs or alcohol. • Do not exceed the maximum w orkin g pressure or temperature rating of the lowest rated system component.
Models 313255F 5 Models Chec k the identification plat e (ID) f or the 6-digit part number of y our pac kage. Use the f ollowing matrix and tab les to define the compon ents of yo ur pack age.
Models 6 313255F Merkur 28:1 Heated P ac ka ges (G28Wxx and G28Cxx) Maximum Inlet Air Pressure: 100 psi ( 0.7 MPa, 7 bar) Maximum Fluid W orking Pressure: 2800 psi (19.3 MP a, 193 bar) Merkur 30:1 Heated P ac ka ges (G30Wxx and G30Cxx) Maximum Inlet Air Pressure: 100 psi ( 0.
Models 313255F 7 Merkur 48:1 Heated P ac ka ges (G48Wxx) Maximum Inlet Air Pressure: 100 psi (0 .7 MP a, 7 bar) Maximum Fluid W orking Pressure: 4800 psi (33.
Installation 8 313255F Installation Key: A Air Shutoff V alve (optional accessor y) B Air Filter (optional accessor y) C Air Line Moisture T rap and Drain V alve (optional accessor y) D Fluid Heater E.
Installation 313255F 9 General Inf ormation F IG . 1 is only a guide f or selecting and installing system components and accessories . Contact you r Graco dis- tributor f or a ssistance in designing a system to suit your par ticula r needs.
Installation 10 313255F Supplied Components See F IG . 1. Components vary b y pac kage ordere d. See tab les on pages 6 to 7. Y our package ma y include: • The red-h andled bleed-type master air valve (U) is required in your syste m to reliev e air trapped between it and the air moto r and gun when the v a lve is closed.
Installation 313255F 11 Gr ounding The equipment m ust be ground ed. Grounding reduce s the risk of static and electric shock b y provid ing an escape wire f or the electrical curren t due to static b uild up or in the e v ent of a sh or t circuit. 1.
Installation 12 313255F Electrical Housing Access Tilt the heater a wa y from the pump f or easier access to the scre ws on the cov e r of the electrical housing. Hose Connections See F IG . 1, page 8. 1. Attach one end of the air hose t o the gun air regula- tor (T , G40 spra y guns only).
Operation 313255F 13 Operation Pressure Relief Pr ocedure 1. Enga ge the tr igger lock. 2. See F IG . 1. T ur n off the b leed-type ma ster air v alv e (U). 3. Disengage the trigger loc k. 4. Hold a metal par t of the gun firmly to a grounded metal wast e container .
Operation 14 313255F We t C u p Bef ore star ting, fill wet cup 1/3 full with Graco Throat Seal Liquid (TSL) or compatible solv ent. Prime the Pump 1. See F IG . 1. Lock gun trigger. Remo ve tip guard and spra y tip from gu n (H). Refer to gun manual.
Operation 313255F 15 Adjust the Atomization 1. Do not turn on atomizing air supply . Fluid pressure is controlled b y the air pressur e supplied to the pump (pump a ir regulator) .
Operation 16 313255F 3. See F IG . 7. For narrower patter n, tu r n patter n adjustment v alv e knob (AA) countercloc kwise (out). If pattern is still not nar row enough, increase air pressure to gun slightly or use different size tip . Shutdown F ollow Pressure Re lief Pr ocedure , p age 13.
Maintenance 313255F 17 Maintenance Preventive Maintenance Schedule The oper ating conditio ns of y our particular system determine how often maintenance is req uired. Estab lish a prev entive maintenance sched ule by recording when and what kind of maintena nce is needed, and then deter mine a regular schedule f or checking y our system.
Troubleshooting 18 313255F T roub leshooting NO TE: Check all possible prob lems and causes before disassemb ling the pump . F * T o deter mine if the fluid hose or gun is obstructed, relie v e the pressure. Disconnect the fluid hose and place a con- tainer at the p ump fluid outlet to catch an y fluid.
DataTrak Controls and In dicators 313255F 19 DataT rak Contro ls and Indicators Key for F IG . 8 AA Runaw a y Limit, in cycles per min ute (user settable; 00=OFF) AB Lower Displacement (user settab le.
DataTrak Operation 20 313255F DataT rak Operation NO TE: The displa y (AE) will tur n off after 1 minute to sav e batter y life . Press any ke y to wake up the display . Setup Mode 1. See F IG . 8. Press and hold f or 5 seconds until Setup menu appears .
DataTrak Operation 313255F 21 Prime/Flush 1. See F IG . 8. T o enter Prime/Flush mode , press an y ke y to wake up the display , th en press . The Prime/Flush symbol will app ear in the displa y and the LED will flash . 2. While in Prime/Flush mode, runaw a y protect ion is disabled and the batch to taliz er (BT) will not count.
DataTrak Operation 22 313255F T able 1:Dia gnostic Codes Symbol Code Code Name Diagnosis Cause Runawa y (DataT rak only) Pump running faster than set runawa y limit. • I ncreased air pressure. • Increased fluid output. • Exhausted fluid supply .
DataTrak Operation 313255F 23 Replace DataT rak Battery or Fuse Replace Battery 1. Unscrew cab le from the bac k of the reed s witch assembly . See F IG . 10 . 2. Re mov e the cable from the two cable clips. 3. Re mov e DataT rak modu le from brack et.
Parts 24 313255F Pa r t s NO TE: P ar ts v ar y by model. See P ar ts Lists on pages 26 to 28. 64 67 67 63 62 66 84 64 1 60 61 75 69 70 71 72 4 5 83a 83b 6 74 73 81 82 77 2 3a 3b ti13018a (wall mount .
Parts 313255F 25 65 9 22 10 8 G40 Gun Shown ti13111a ti13143a ti13114a 16 16 Non-Hazardous Loca tion Electrical Cord Parts (120V Cart Mount Only) 79 80 65 49 54 53 68 ti13261a 60 60 78 (120V only) 50 .
Parts 26 313255F G28xxx Models ----- Not sold separately . NO TE: Replacement W arni ng labels, signs, tags, and cards are av ailable at no cost. Ref. No.
Parts 313255F 27 G30xxx Models ----- Not sold separately . NO TE: Replacement W arni ng labels, signs, tags, and cards are av ailable at no cost. Ref. No.
Parts 28 313255F G48Wxx Models ----- Not sold separately . NO TE: Replacement W arni ng labels, signs, tags, and cards are av ailable at no cost. Ref. No.
Kits 313255F 29 Kits W all Mount Kit 24A578 NO TE: Mountin g Ar ms Kit 24A372 (P ar t 49, see page 26 or 27) also is required f or w all mounting a pac kage that has a control pa nel. Heated Car t Mount Kit 256427 102 101 ti12633a Ref No. Description Qty .
Kits 30 313255F Pump and Gun Contr ol P anel Kit Kit 24A581 301 302 303 304 305 306 307 308 312 314 317 309 308 304 310 316 ti13565a 311 307 313 319 321 303 ti13467a 315 Ref. P art Description Qty . 301 114362 V AL VE, ball 1 302 15T643 SWIVEL, tee , 3/8 npt(m) x 1/2T 1 303 ----- TUBE, 1/2 OD , cut to fit, order T ubing Kit 24D496 1.
Kits 313255F 31 Pump Onl y Contr ol P anel Kit Kit 24A583 301 303 314 317 326 311 305 304 310 313 306 307 308 304 ti13567a Ref. P art Description Qty .
Kits 32 313255F DataT rak Kits Kit 24A576 (with Runawa y Pr otection) ----- Not so ld separately . ▲ Replacement W arning labels, signs , tags , and cards are av ailable at no cost.
Wall Bracket Moun ting Dimensions 313255F 33 W all Brac ket Mounting Dimensions Te c h n i c a l D a t a Maximum fluid working pres sure . . . . . . . . . . . . . . . See Models tab le on page 5. Maximum pump air inlet pressure . . . . . . . . . . . .
All written and visual data contained in this document reflects the latest product information available at the time of publica tion. Graco reserves the right to make changes a t any time without notice. Original instructions. Thi s manual contains Eng lish.
An important point after buying a device Graco Inc. G28C18 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Graco Inc. G28C18 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Graco Inc. G28C18 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco Inc. G28C18 you will learn all the available features of the product, as well as information on its operation. The information that you get Graco Inc. G28C18 will certainly help you make a decision on the purchase.
If you already are a holder of Graco Inc. G28C18, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Graco Inc. G28C18.
However, one of the most important roles played by the user manual is to help in solving problems with Graco Inc. G28C18. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco Inc. G28C18 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
