Graco A-25 - Manual

Important Two-Component Material Information 3A1569B 7 Important Two-Component Material Information Isocyanate Conditions Material Self-ignition Keep Components A and B Separate Moisture Sensitivity of Isocyanates Isocyanates (ISO) are catalysts used in two component foam and polyurea coatings. ISO ...

Important Two-Component Material Information 8 3A1569B Changing Materials Changing the material types used in your equipment requires special attention to avoid equipment damage and downtime. • When changing materials, flush the equipment mul-tiple times to ensure it is thoroughly clean. • Always cl...

Typical Installation, without Circulation 3A1569B 9 Typical Installation, without Circulation Key for F IG . 1 A Reactor Proportioner B Heated Hose C Fluid Temperature Sensor (FTS) D Heated Whip Hose E Spray Gun F Proportioner and Gun Air Supply Hose G Feed Pump Air Supply Lines H Waste Containers J...

Typical Installation, with Circulation 10 3A1569B Typical Installation, with Circulation Key for F IG . 2 A Reactor Proportioner B Heated Hose C Fluid Temperature Sensor (FTS) D Heated Whip Hose E Spray Gun F Proportioner and Gun Air Supply Hose G Feed Pump Air Supply Lines J Fluid Supply Lines K Fe...

Component Identification 3A1569B 11 Component Identification F IG . 3: Typical Installation AG T W Z AF R AA S U V AE AC Y X ti16814a AI DD GG FF AD AB AH

Component Identification 3A1569B 13 Control Panel Temperature Controls and Indicators E L E C T R O N I C M O N I T O R I N G S Y S T E M ° F ° C A B Air Motor Pressure Gauge Air Pressure Regulator Air Motor Shutoff Valve DataTrak (optional)See page 32. See Tempera-ture Controls and Indicators ti168...

Setup 3A1569B 15 Setup Locate Reactor A-25 1. Locate Reactor A-25 on a level surface and bolt in place to the floor with 3/8 in. (10 mm) bolts, unless the Reactor needs to remain portable. • Two bolts through the 2 in. (50 mm) deep caster bushings in the rear. • Two bolts through the 3-5/8 in. (168 ...

Setup 16 3A1569B Configure to Supply Power NOTE: Both cord connection AND jumper positioning steps on page 17 must be completed. Step One - Connect Electrical Cord NOTE: Disregard terminal numbers on disconnect switch blocks. Wire to positions shown. Terminals will accept up to #8 AWG (10 mm 2 ) con...

Setup 3A1569B 17 Step Two - Install Power Jumpers Find location for power jumpers which are in a plastic bag tie wrapped to the ground lug. 1. Turn screws counter-clockwise on the upper part of the shroud until they stop. Pull door up and out. 2. Install red jumpers from the storage bag to the posit...

Setup 18 3A1569B Ground System • Reactor: is grounded through power cord; see page 16. • Spray gun: connect whip hose ground wire to FTS; see page 19. Do not disconnect wire or spray with-out whip hose. • Fluid supply containers: follow your local code. • Object being sprayed: follow your local code...

Setup 3A1569B 19 Recirculation / Pressure Relief Lines If Recirculating to Supply Drum: Connect high pressure hose (R) to relief fittings (BA, BB) of both PRESSURE RELIEF/SPRAY valves. Route hose back to component A and B drums. Refer to manual 309852. Alternate recirculation hoses (requires adapter...

Initial Startup 3A1569B 21 Initial Startup Load Fluid with Feed Pumps NOTE: The Reactor is tested with oil at the factory. Flush out the oil with a compatible solvent before spray-ing; see page 27. 1. Check that Setup process is complete; see page 15. 2. Turn on component B agitator, if used. 3. Tur...

Initial Startup 22 3A1569B Set Temperatures See Setup, page 15. 1. Turn main power ON . 2. Press or to change temperature scale. 3. Press to display target temperatures. 4. To set heat zone target temperature, press or until display shows desired temper- ature. Repeat for and zones. NOTE: For zone o...

Spraying 24 3A1569B Spraying The Fusion AP gun is shown. 1. After reaching spray temperatures, engage gun piston safety lock. 2. Close gun fluid inlet valves A and B. 3. Attach gun fluid manifold. Connect gun air line. Open air line valve. 4. Set PRESSURE RELIEF/SPRAY valves (SA, SB) to SPRAY. 5. Op...

Spraying 3A1569B 25 9. Slowly increase the air regulator setting until the approximate stall (static) pressure is achieved on fluid gauges (GA) and (GB). 10. Check fluid pressure gauges (GA, GB) to ensure proper pressure balance. If imbalanced, reduce pressure of higher component by slightly turning...

Park 26 3A1569B Park Park the pumps at the end of the day to cycle propor-tioner pumps to home position, submerging displace-ment rod. 1. Open the park valve. 2. Trigger the gun until pumps stops at the bottom and relieves pressure. 3. Close the air motor shutoff valve. 4. Close the park valve. Pres...

Operation 28 3A1569B Operation Daily Start-up Procedure NOTE: The daily start-up procedures describe normal operation. Assume that all temperature and pressure settings have been previously set, but that the heating system is not up to operating temperature. 1. Check condition isocyanate lubrication...

Fluid Circulation 30 3A1569B Fluid Circulation Circulation Through Reactor To circulate through gun manifold and preheat hose, see page 31. 1. Follow Initial Startup, page 21. 2. See Typical Installation, with Circulation, page 10. Route circulation lines back to respective com-ponent A or B supply ...

DataTrak Controls and Indicators 32 3A1569B DataTrak Controls and Indicators The DataTrak on the Reactor A-25 sprayers do not have runaway protection. For setup and operation instructions see DataTrak Operation, page 33. Key for F IG . 4 AB Combined Lower Displacement (user settable) AC Flow Rate Un...

DataTrak Operation 3A1569B 33 DataTrak Operation NOTE: The display (AE) will turn off after 1 minute to save battery life. Press any key to wake up the display. Setup Mode 1. See F IG . 4, page 32. Press and hold for 5 sec- onds until Setup menu appears. 2. To enter settings for lower size, flow rat...

Maintenance 34 3A1569B Maintenance • Check and add TSL to B side pump wet-cup daily. • Check ISO lube bottle for significant discoloration or crystallization daily. Replace with fresh TSL when needed. • Ensure ISO (A) pump is down and in PARK position during every shutdown. • Keep any ISO (A) fluid ...

Diagnostic Codes 3A1569B 35 Diagnostic Codes Temperature Control Diagnostic Codes Temperature control diagnostic codes appear on tem-perature display. These alarms turn off heat. E99 clears automatically when communication is regained. Codes E03 through E06 can be cleared by pressing . For other cod...

Dimensions 36 3A1569B Dimensions A B C With Wheels Without Wheels Dimension in. (mm) in. (mm) A 43.5 (1105) 43.5 (1105) B 29 (736.6) 21.5 (546) C 30 (762) 24.5 (622) ti17605a

Technical Data 3A1569B 37 Technical Data *Full load amps with all devices operating at maximum capabilities with 210 ft (64.1 m) of hose. ***210 ft (64 m) of heated hose will produce the maximum allowable heat capacity. 310 ft (94 m) of heated hose may be used, but will have 25% less heat capacity. ...

All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. For patent information, see www.graco.com/patents. Original instructions. This manual contains Eng...