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Graco 3A1938E - page 1
Operation EP Hose Pumps 3A1938E EN Electric-powered hose pump for use in fluid transfer and metering applicat ions. For professional use only. Not approved for use in explosive atmospheres or hazardous locations. Importan t Safety Instru ctions Read all warnings an d instructions in this m anual. Save these instructions. 125 psi (0 .9 MPa, 9 bar) ...
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Graco 3A1938E - page 2
Contents Mo del s ............................................................... 3 Wa rni ng s ........................................................... 4 Installatio n.......................................................... 7 Receiving an d Han dli ng................................ 7 Moving the Pu mp ......................................... ...
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Graco 3A1938E - page 3
Models Models Pump Model Hose ID Size (mm) Reference EP2006 6 See EP2 Repair-Par ts Manual for a co mplete lis t of pump part numbers and descri ptive informat ion. EP2013 13 See EP2 Repair-Par ts Manual for a co mplete lis t of pump part numbers and descri ptive informat ion. EP3019 19 See EP3 Rep air-Par ts Manual for a co mplete li st of pump pa ...
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Graco 3A1938E - page 4
Warnings Warnings The following warnings are for the setu p, use, grounding , maintenance a nd repair of t his equipment . The exclamat ion p oint symbol alert s you to a general warning and t he hazard symbol ref ers to p rocedure-speci fic risks. When th ese symbols appear i n the body of thi s manual or on wa rning lab els, refer bac kt ot h e ...
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Graco 3A1938E - page 5
Warnings WARNING ENTANGLEMENT HAZARD Rotating par ts can cause serio us injury. • Keep clear of moving parts. • Do not operat e equipment wi th protective g uards or co vers removed. • Do not wear lo ose clothing, je welry or long hair while o perating equipm en t. •E q u i p m e n t c a n start withou t warning. Be fore checking, movi ng o ...
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Graco 3A1938E - page 6
Warnings WARNING EQUIPMENT MISUSE HAZARD Misuse can cause death or s erious inj ury. • Do not operat e t he unit whe n fatigu ed or under the influence of drugs or alcohol. • Do not exceed th e maximum wo rking pressure or temp erature rating of the lo west rat ed system component. See Technical Data in all equipment manuals. • Use fluids a ...
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Graco 3A1938E - page 7
Installation Installation Installa tion of your pump i nvolves potenti ally hazardous procedur es. O nly train ed and qualifie d personnel who have r ead and who understa nd the informa tion in this man ual should insta ll this equipment . Receiving and Handling Upon receipt of your pump: • Carefully inspect the pump to v erify that no damage oc ...
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Graco 3A1938E - page 8
Installation Location Allow sufficie nt space to p ermit easy ac cess for maintenance and servic e, especially in front of the pump. The pump area should have adequ ate headroom and sufficie nt ventilati on. Before installin g your pump, see Dimensions, page 21 , to ensure t hat the available sp ace is sufficie nt for the pum p, taking int o acc ...
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Graco 3A1938E - page 9
Installation Fluid Connect ions Undue stress on th e pump inlet or outl et connection s can cause seriou s injury o r equipment failure. The fluid inlet and o utlet lines must be independentl y supported. The pipe supports should be located as close to t he pump as possible. NOTE: The hose connecti ons require t he use of a hose clamp. Part No. 24 ...
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Graco 3A1938E - page 10
Installation Flush Connections Line flush ing connecti ons are recommend ed when pumping slu rries or liquids with a hig h concentration of solids t hat tend to set tle when the pump is turned off. NOTE: Accumulation of sol ids in the hose af ter shutdown can reduce hose l ife because the hose will experience high st ress when restarting the pu mp ...
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Graco 3A1938E - page 11
Installation Figure 4 Fill Pump With Hose Lu be Figure 5 Hose Lube L evel on EP3 and EP4 Pumps Figure 6 Hose Lube Level on EP2 Pumps 5. Wrap the vent pl ug (15) thr eads with PTFE ta pe and screw it into t he vent port caref ully. NOTICE The vent port threads are a luminum. To help prevent galli ng, blow out the threads with compresse d air before ...
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Graco 3A1938E - page 12
Installation Grounding This equipment must be gr ounded to reduce the risk of stati c sparking and electr ic shock. Electric or static sparking ca n cause fumes to igni te or explode. Improper grou nding can cause electric shock. Grounding provides an escape wire for the electric cu rrent. 1. Pump: The pump is gr ounded thro ugh a proper electri ca ...
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Graco 3A1938E - page 13
Installation Electrical Co nnections All electrica l wiring must be completed by a qualified elec trician and com ply with all local codes and regulati ons. Wire Connections a t the Motor NOTE: Follow the instru ctions in the moto r manufacturer’s m anual. Use a motor starter wit h overload prot ection. Wire size, f use size, and ot her electric ...
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Graco 3A1938E - page 14
Installation Wire Connections at the Variab le Frequency Drive (VFD) NOTE: Follow the instruc tions in the VFD manufactur er’s manual. Install the wi ring at the VFD as foll ows: 1. Connect the wires to th e motor. See Wire Connect ions at t he Motor, pag e 13 . 2. Open the VFD’s elect rical box. 3. Install strai n reliefs i n both ports at the ...
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Graco 3A1938E - page 15
Installation Table 1 Main Power Conn ections at t he VFD VFD Part No. Used With Pump Input Voltage Output Voltag e See Figure No. 16K905 EP2006 120 Vac, 1 phase 240 Vac, 3 phase Fig. 10 16K905 EP2006 240 Vac, 1 phase 240 Vac, 3 phase Fig. 11 16K906 EP2006 208–240 Vac, 1 phase 208–240 Vac, 3 phase Fig. 12 16K906 EP2006 208–240 Vac, 3 phase 208 ...
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Graco 3A1938E - page 16
Installation PE L1 L2 N PE L1 N Figure 10 120 Vac 1 Phase Input/24 0 Vac 3 Phase Output PE L1 L2 N PE L1 L2 Figure 11 240 Vac 1 Phase Input/24 0 Vac 3 Phase Output PE L1 L2 L3 PE L1 N Figure 12 208–240 Vac 1 Phase Input /208–240 Vac 3P h a s eO u t p u t PE L1 L2 L3 PE L1 L2 L3 Figure 13 208–240 Vac 3 Phase Input /208–240 Vac 3 Phase Output ...
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Graco 3A1938E - page 17
Installation Setup the VFD VFD Control Pan el NOTE: For complete i nformati on about t he VFD, see the manufact urer’ s instructi ons suppl ied with the VFD. • The control pane l display shows the stat us of the motor. It al so shows the direct ion of motor rotation: FWD (forwa r d) or REV (revers e). • The green RU N key starts th e motor. ? ...
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Graco 3A1938E - page 18
Operation Operation Flush Pump Bef ore Using Pumps are tested with li ghtweight oi l which is left in to protect the p ump parts. To pre vent contam ination o ft h efl u i d ,fl u s ht h ep u m pw i t hac o m p a t i b l es o l v e n t before usin g it. See Flushing, page 20 . Pressure Re lief Procedure 1. Shut off t he electricity to t he pump. ...
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Graco 3A1938E - page 19
Operation Running the Pump Ensure that th e hose material and t he lubricant ar e compatible w ith the pum ped fluid. Failure to do so may cause inj ury or premature hose fa ilure. NOTICE Never th rott l e the pump, whether on t he fluid inlet or outlet si d e. This will cause damage. Do not operate the pump against a clos ed inlet or outlet valv ...
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Graco 3A1938E - page 20
Maint enan ce Maintenance Maintenance a nd repair o f the pump invol ves potential ly hazardous p rocedures. Only t rained and qualified per sonnel who have read and who understand th e instructi ons in this manua l should maintain o r repair t his equip ment. Preventive Maintenance Schedule Check the followi ng items at the interval s listed bel ...
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Graco 3A1938E - page 21
Dimensions Dimensions EP2 Hose Pumps Model A, mm (in .) B, mm (in .) C, mm (in .) D, mm (in .) EP2 228 (8.98) 280 (11.02) 437 (17.20) 339 (13.35) EP3 and EP4 Hose Pumps Pump Model A, mm (in.) B, mm (in.) C, mm (in.) D, mm (in.) EP3 300 (11.81) 344 (13. 52) 423 (16.65 ) 696 (27.39) EP4 404 (15.91) 428 (16.86) 492 (19.35) 868 (34.15) 3A1938E 21 ...
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Graco 3A1938E - page 22
Mounting H ole La youts Mounting Hole Layouts EP2 Hose Pumps A B C D Pump Model A B C D EP2 120 mm (4. 7i n . ) 170 mm (6. 7i n . ) 21 mm (0.8 3i n . ) Four 12 mm (0.47 in.) diam et er mountin g hol es EP3 and E P4 Hose Pumps A B D C Pump Model A B C D EP3 229 mm (9 in.) 229 mm (9 i n.) 28 mm (1.1 i n.) Four 9.5 mm (0.37 in.) diameter mounting hole ...
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Graco 3A1938E - page 23
Technical Data Technical Data EP2 Pumps U.S. Metr ic Maximum Flu i d Working Pr essure 125 psi 0.9 MPa, 9 bar See the EP2 P ump Repair-Par ts manual for th e motor/gea r r a t i ou s e do n your pump: 0.5/51.30 0.75/35.10 Motor Horse power/Gear Ratio 0.33/157. 43 Maximum P ump Speed 6 mm: 35 RPM; 13 mm: 50 RPM Maximum Environment al Temperature 122 ...
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Graco 3A1938E - page 24
Technical Data EP3 Pumps U.S. Metric Maximum F luid Working Pre ssure 125 psi 0.9 MPa, 9 bar See the EP3 Pump Repair-Parts manual for the motor/gear ratio used on your pump : 1.5/35.91 Motor Horsepower /Gear Ratio 1.0/100.36 Maximum Pum p Spe ed 50 RPM Maximum Envir onmental Temperature 122°F 50°C Minimum Environme ntal Temperature 14°F –10°C ...
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Graco 3A1938E - page 25
Technical Data EP4 Pumps U.S. Metr ic Maximum Fluid Working Pressure 125 psi 0. 9 MPa, 9 bar See the EP4 Pump Repair -Parts manua l for the moto r/gear r a t i ou s e do ny o u rp u m p : 2.0/19.70 2.0/34.29 Motor Horsepower /Gear Ratio 2.0/79.72 Maximum Pump Speed 130 RPM Maximum Environment al Temperature 122°F 50°C Minimum Env ironmen tal Temp ...
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Graco 3A1938E - page 26
Performance Dat a Performance D ata EP2006 Hose Pump 0.75 0.50 0.25 0.00 0 20 40 60 80 100 120 Flow (gpm) Pump Speed (rpm) EP2013 Hose Pump 2.5 0.0 0.5 1.0 1.5 2.0 0 20 40 60 80 100 120 Flow (gpm) Pump Speed (rpm) 26 3A1938E ...
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Graco 3A1938E - page 27
Performance Dat a EP3019 Hose Pump 7 0 1 2 3 4 5 6 0 20 40 60 80 100 120 Flow (gpm) Pump Speed (rpm) EP4029 Hose Pump 20 0 2 4 6 8 10 12 14 16 18 0 20 40 60 80 100 120 Flow (gpm) Pump Speed (rpm) 3A1938E 27 ...
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Graco 3A1938E - page 28
Graco Standard Warranty Graco warrants all equipment r eferenced in this documen t which is manuf ac tured by Graco and b earing its name to be free from defect s in material and wor kmanship on the date of sal e t o the original pu rchaser f or use. W ith the exception of any speci al, extended, or li mited warranty publ ished by Graco, Graco will ...
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