Instruction/ maintenance manual of the product 311511G Graco
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311511G ENG Operation Reactor A-20 Air Operated, Electrically H eated Plural Component Pr opor tioner For spraying or dispens ing 1:1 mix ratio materials, inc luding epo xies and polyurethane foam. For pr of essional use only . Not appro ved f or use in Eur opean explosive atm osphere locations.
Contents 2 311511G Contents Related M anuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Systems 311511G 3 Systems 253831 Pr opor tioner This model is field-configur ab le to the following supply v oltages: 230 V , 1 Phase 230 V , 3 Phase 380 V , 3 Phase 2,000 psi (14 MP a,140 bar) Maxim um Fluid Working Pressure 120 psi (0.
Warnings 4 311511G Wa r n i n g s The f ollowing general w arnings are for the set up , use, g rounding, maintenance , and repair of this equipment. Additional, more specific warnings ma y be f ound throughout t he body of this manual wher e applicable .
Warnings 311511G 5 FIRE AND EXPLOSION HAZARD Flammab le fumes, such as solv ent and paint fumes , in wo rk ar ea can ignite or e xplode. T o help pre vent fire and e xplosion: • Use equipment only in w ell ventilated area.
Warnings 6 311511G MO VING P ARTS HAZARD Movin g par ts can pinch or amputate fingers and ot her body par ts. • K eep clear of moving parts. • Do not op erate equip ment with pr otective guards or cov e rs removed. • Pressurized equipmen t can star t without warning.
Typical Installation, without Circulation 311511G 7 T ypical Installation, without Cir culation Key for F IG . 1 A Reactor Propor tio ner BH e a t e d H o s e C Fluid T emperature Sensor (FTS) D Heate.
Typical Installation, wi th Circulation 8 311511G T ypical Installation, with Cir culation Key for F IG . 2 A Reactor Propor tio ner B Heated Hose C Fluid T emperature Sensor (FTS) D Heated Whip Hose .
Moisture Sensitivity o f Isocyanates 311511G 9 Moisture Sensitivity of Isocy anates Isocy anates (ISO) are catalysts used in two component f o am and polyurea coatings . ISO will react with moisture (such as humidity) to f or m sm all, har d, abrasive crys tals, which become suspended in the fluid.
Component Identification 10 311511G Component Identification F IG . 3: T ypical Installation AI T W Z AH R AA S U V AG AD Y X ti8447a ti8448a ti8481a AK DD GG FF.
Component Identi fication 311511G 11 Key: R Main Disconnect Switc h - Controls power to all circuits. It must be ON f or propor tioning unit to operat e. T emperature displa ys are lit when main s witch is ON. S Main Air Filt er - Filters system air supply .
Controls and Indicators 12 311511G Contr ols and Indicators Key: AK Primary Heater Switc h - Co ntrols and pro tects primar y heater . It must be ON and lit green f or primar y heater to ope rate . AL Hose Heater Switc h - Controls and protects ho se heat circuit .
Pressure Relief Procedure 311511G 13 Pressure Relief Pr ocedure 1. T urn of f feed pumps and agit ator if us ed. 2. T urn P ARK/R UN switch to P ARK. 3. T r igger gun to relie ve pr essure. 4. T urn off air inlet valv e. 5. Engage gun p iston safety lock.
Setup 14 311511G Setup Locate Reactor A-20 1. Locate Reacto r A-20 on a lev el surface and bolt in place to the floor with 3/8 in. (10 mm) bolts . • T w o bolts through the 2 in. (50 mm) dee p caster bushin gs in the rear . • T wo bolts through the 3-5/ 8 in.
Setup 311511G 15 Configure to Supply P ower Step One - Connect Electrical Cord 1. Remove and retain two screws from lo wer front shroud an d remove . 2. Connect main po wer cord to electrical console as f ollows: a. Fe ed power cord throu gh strain relief (SR) on right side of unit.
Setup 16 311511G Step T w o - Repositi on Po wer Jumpers Find location of P ower Jumpers. F or 230V , 1 Phase and 230V , 3 Phase Installations, change jumper positio ns as shown belo w . Machine is shipped with jumper s in the f ail-saf e 380 3Ø positio n.
Setup 311511G 17 Gr ound System • Reactor : is grounde d through po wer cord ; see page 15. • Spra y gun : connect whip hose ground wire to FTS; see page 18. Do not disco nnect wire or spra y with- out whip hose. • Fluid supply container s : f ollow your local code .
Setup 18 311511G Connect FTS and Heated Dual Whip Hose 1. Carefully e xtend FTS probe (H) into the hose section from the propor tioner . Do not bend or kink probe. In ser t in component A (ISO) side of main hose for f oam or poly- urea systems. 2. Connect FTS (J) to whip hose (W).
Setup 311511G 19 Recir culation / Pressure Relief Lines If Recirculating to Supply Drum: Conne ct high pressure hos e (R) to relie f fittings (BA, BB) of both PRESSURE RELIEF/SPRAY valves. Route hose back to component A a nd B drums. Refer to manual 30 9852.
Setup 20 311511G Close Gun Fluid Manif old V alves A and B Connect Whip Hose to Gun Fluid Manif old Do not connect manif old to gun. Pressure Chec k Hose See hose manu al. Pressure chec k for leaks. If n o leaks, wrap hose and electrical c onnections to protect from damage.
Initial Startup 311511G 21 Initial Star tup Fluid T emperature Sensor (FTS) Calibration 1. Bef ore turning on the unit, ensu re all hoses and cabl es are properly connected. T o ensure that the FTS in the hose is at the same temperature as the heaters , k eep heat off and stor e the hose FTS n ear the machin e f or sev eral minutes.
Initial Startup 22 311511G Digital T emperature Controller s The proportioner has two tem perature co ntrollers that automatically ma nage the temper ature f or the primar y heater and th e hose heat. Controller Screens Push the left side scroll b utton to cycle through the f o llowing screens .
Initial Startup 311511G 23 Change Between Fahr enheit and Celsius The tempera ture controller is f actor y -set to displa y in F ahrenheit units . T o change to Celsius uni ts: 1. Press an d release Scroll b utton (A1) un til Controller displays “ UNI T ”.
Initial Startup 24 311511G Over T emperature Alarms Both the flui d heater and the ho se heat ha ve ov er temperature alarms that will tur n off the heat zone if high tempera tures are det ected. If this happ ens, the g reen light in the s witch f or that heat z one will go out.
Initial Startup 311511G 25 Suppl y W et-Cups with Thr oat Seal Liquid 1. Component A (ISO) Pu mp: K eep reser voir (Z) 3/4 filled with TSL. Wet-cup piston circulates TSL through wet -cup to carr y aw a y isocyanate film on displacement rod . Change the fluid in t he reservoir when it become s milky-looking.
Spraying Setup 26 311511G Spra ying Setup 1. After r eaching spra y temperature s, engage g un piston s af ety loc k. 2. Close gun fluid manif old v alve s A and B. 3. Attach gun fluid manif old. Connect gun air line . Open air line valv e. 4. Set PRESSURE RELIEF/SPRA Y valves (SA, SB) to SPRA Y .
Spraying Setup 311511G 27 11. Disengage gun piston saf ety lock . 12. T est spray onto cardboar d. Adjust for desired fluid pressure on the DN stroke with re gulator (AS). Briefly spray until the UP st rok e indic ator light is on and increase the UP regulator setti ng until the fluid pressure (GA, GB) ma tches the DN strok e pressure.
Shutdown 28 311511G Shutdo wn 1. Shut off Primary and Hose heat s witches. 2. P ar k com ponent A pu mp. T ur n P ARK/R UN switch to PA R K . 3. F ollow Pressure Relief pr ocedure; see page 13. 4. T urn Pum p Mode F unction k nob to OFF . 5. T urn Main P ower Disconnect switch (R) OFF .
Operation 311511G 29 Operation Dail y Star t-up Procedure 1. Chec k condition isocyanate lubrication system and service as required. Change pump lubricant when it shows signs of change to a milky color . 2. Ensure supply flu id is at correct temper ature as recommended b y chemical system supplier .
Operation 30 311511G 16. Open gun fluid manif old valv es A and B. 17. Disengage gun piston saf ety lock . 18. T est spray onto cardbo ard. 19. Obser ve isocya nate-A and resin-B gauge s on up and down st rokes . Readjust upstrok e pressure regulator as requir ed to ensure proportioning pump pressure is equal on both the up and down str oke s.
Fluid Circulation 311511G 31 Fluid Cir culation Cir culation Thr ough Reactor To circulate through gun man ifold and pre heat hose; see page 32. 1. Load flui d with feed pum ps; see page 21. 2. Route circula tion lines ba ck to respective component A or B supply drum.
Fluid Circulation 32 311511G Cir culation Thr ough Gun Manif old Circulating f luid through the gun manifold allows r apid preheating of hose. 1. Install gun flu id manif old (FM) on P ar t 246362 accessor y circulation kit (CK). 2. Connect high pressure circula tion lines (N) to circulation manif o ld (CK).
Fluid Circulation 311511G 33 Maintenance • Chec k and add TSL to B side pump wet -cup daily . • Chec k ISO lube bottle f or significant disco loration or cr ystallization daily . Replace with fresh TSL when needed. • Ensure ISO (A) pump is down and in P ARK po sition during e very shutdown.
Technica l Data 34 311511G T e chnical Data *Full load amps with all de vices oper ating at maximum capabilities with 210 ft (64.1 m) of hose. **When a su rge tra nsient is applied to the po wer lines of the unit, heat to the hose ma y be interrupted and r equire the hose heat s witch to be manually cycled.
Technical Data 311511G 35.
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. T his manual contains English.
An important point after buying a device Graco 311511G (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 311511G 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 311511G - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco 311511G you will learn all the available features of the product, as well as information on its operation. The information that you get Graco 311511G will certainly help you make a decision on the purchase.
If you already are a holder of Graco 311511G, 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 311511G.
However, one of the most important roles played by the user manual is to help in solving problems with Graco 311511G. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco 311511G 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
