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Instructions
THERM-O-FLOW
Hot Melt Tank T5
For melting and pumping non flammable hot melt thermoplastic adhesives.
Model 234239
115 VAC
Model 234250
230 VAC
300 psi (2.0 MPa, 20.6 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2003, Graco Inc. is registered to I.S. EN ISO 9001
®
309831 Rev.D
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Summary of Contents for Graco THERM-O-FLOW 234239
- Page 1 300 psi (2.0 MPa, 20.6 bar) Maximum Working Pressure Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441 Copyright 2003, Graco Inc. is registered to I.S. EN ISO 9001...
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Page 2: Table Of Contents
Adjusting timers and controllers ... . 14 Graco Information ......38 Daily Maintenance . -
Page 3: Warnings
Do not alter or modify equipment. • For professional use only. • Use equipment only for its intended purpose. Call your Graco distributor for information. • Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces. •... -
Page 4: Installation
Installation Installation ® THERM-O-FLOW T5 Hot Melt System is used for melt- ing and pumping hot melt thermoplastic adhesives. The Hose Part Extrusion, Length 115/ system consists of the melt unit, a heated supply hose, Spray/Swirl and applicator. System operation is further enhanced by Application the use of pattern controllers, timers, foot switches, or other such devices. - Page 5 Installation Applicators • Vertical Electric Applicator (VEA) (E): for manual dispensing. One or two hand control options. • EG Electric Head (D): for automatic dispensing. No air needed for application.Use with timer and pat- Timers and controllers tern controller. • EC-20 (B): 2- event pattern timer for automatic •...
- Page 6 Installation . 1: Typical Installation Key: T5 Hot Melt Tank Handgun Applicator Timer (required for automatic application) Compak Applicator Air Controller (required for airspray and swirl application) Fluid Hose EG Applicator Hose Electrical Connector VEA Applicator Timer to Tank Power Cord AG Applicator 309831D...
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Page 7: Front Panel Display
Installation Front panel display Tank Temperature Control Hose Temperature Control Head Temperature Control Zone Heating Indicators Range Digit Over Temperature Pump Status Open Sensor Pump Function Range Select Switch Switch . 2: Front Panel Display 309831D... -
Page 8: Front Panel Display Controls
Installation Front panel display controls Control Name Function Tank Temperature Adjusts tank temperature within range number. See Control Range Digit LED Chart, page 13. Hose Temperature Adjusts hose temperature within range number. See Control Range Digit LED Chart, page 13. Head Temperature Adjusts applicator head temperature within range number. -
Page 9: Setup
Setup Setup Mounting hot melt tank Bolt the hot melt tank securely to appropriate surface. Bolt holes are provided on the base of the tank. Make sure to mount tank where hose fittings are accessible with wrenches. Connecting hose WARNING To avoid accidental system pressurization or electrical shock, disconnect power cord and turn the ON/OFF switch to OFF. -
Page 10: Connecting Applicator
Setup Connect hose (J) to fluid outlet fitting (P). Tighten Connect hose electrical connector (K) to tank hose with 11/16 in (mm) opened end wrench. electrical receptacle (S). Make sure pins align prop- erly. Screw bayonet ring of the plug onto the receptacle. Connecting applicator See hot melt tank applicator manual for specific instruc- tion on how to install applicators to the hot melt tank. -
Page 11: Adding Material To Tank
Setup Adding material to tank Fill the melt tank with the amount of adhesive mate- rial that will be used in one day. Material should not be higher than 1.5 in. (4 cm) from the top of the WARNING tank. This equipment is designed for use with standard adhesive and sealant such as EVA’s, butyls, and polyolefins with flash points above 450°F... -
Page 12: Operation
Operation Operation Pressure relief procedure Make sure material in tank is completely dispensed. WARNING Follow Pressure relief procedure when you stop Follow Pressure Relief Procedure, page 12. spraying and before cleaning, checking, servicing, or transporting equipment. Read warnings, page 3. Shut off pump motor. -
Page 13: Starting The Hot Melt System
Operation Starting the hot melt system Using the range select tool, adjust the range select Plug in hot melt system. switch . Range number will appear in the range digit LED Turn On/Off switch (R) ON. See F . 3 page 9. Turn tank temperature control clockwise to desired temperature setting. -
Page 14: Adjusting Timers And Controllers
Operation Dispense the material as instructed in appropriate Adjusting timers and controllers applicator manual. • 310801 Manual Applicator manual See Timer manual 310814 for instruction. See Air Saver Control instructions in appropriate applicator manual. • 310803 Automatic Applicator manual • 310801 Manual Applicator manual •... -
Page 15: Daily Maintenance
Daily Maintenance Daily Maintenance Before powering up the hot melt system perform the fol- lowing checks. Verify the hose is being properly supported so it is not over-stressed during use. The minimum bend diameter is 16 in. (42 cm) when hot. Inspect the melt tank for foreign materials and/or charring of the adhesive. -
Page 16: Troubleshooting
Troubleshooting Troubleshooting Problem Cause Solution Front panel not lit. Unit not plugged in or turned on. Plug in unit. Turn On/Off switch ON. Wire harness connections not con- Check all power supply connections nected or needs replacing. Fuse dis- to the front panel. Replace if neces- connected or needs replacing. - Page 17 Troubleshooting Problem Cause Solution Tank not heating or taking a long time Temperature range not selected. Check temperature range, see Front to heat and front panel is lit. Power supply to the heaters not con- panel display, page 7. Check fuse nected correctly.
- Page 18 Troubleshooting Problem Cause Solution Low or no flow of material from unit. No power to tank. Plug in unit. Turn On/Off switch ON. Front panel settings not properly set. See Adjusting panel controls, page Not enough material in tank. Add material. Material should not be higher than 1.5 in.
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Page 19: Repair
Repair Repair Tools Used • 11/16 in. wrench • 5/16 in. socket wrench • 1 in. wrench ® • Krytox lubricant • 1/8 in. hex wrench • 7/16 in. wrench • 3/32 in. hex wrench • Penetrating lubricant • 15/16 in. nut driver •... -
Page 20: Replacing Front Panel
Repair Replacing front panel Pull panel (2) away from tank and disconnect four wire harness electrical connections and ground cable. Front panel should now be disconnected Turn On/Off switch (R) OFF. Unplug tank unit. completely from tank. From the front panel (2), using a 1/8 in. hex wrench, remove screws (3). -
Page 21: Removing Tank Cover
Repair Removing tank cover Disconnect all wires connecting tank cover to tank unit: two white wires (A), two-pin connection (B), three-pin connection (C), and ground cable (D). Disconnect hose, see Replacing hose, page 19. Disconnect any accessories connected to the auxil- iary bypass connector. -
Page 22: Replacing Pump
Repair Using a 11/32 in. wrench, remove nut and washer Using a 5/16 in. wrench, remove bolts (24). (29, 30). To remove bracket from wire harness, remove flat- head screw. Remove motor (20) and capacitor (27). Replace using motor capacitor kit 118185 (115 VAC) or 118186 (230 VAC). - Page 23 Repair Using a 5/16 in. socket wrench, remove the bolts and washers (33, 34, 35). Pump assembly will not loosen if material in pump has cooled. Using a heat gun, heat the pump assembly before removal. Wear gloves when han- dling heated parts.
- Page 24 Repair From housing (90), using a o-ring pick, remove Remove gears (99, 100). u-cup seal (91). Lubricate and replace. Remove key (95). Push out shaft (94) from the top down of the pump housing (98). Note the orientation of shaft (94). When reassem- bling, insert long end of shaft into the top of the pump housing From driven gear (99), remove pin (102) and bear-...
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Page 25: Replacing Pressure Adjuster
Repair Replacing pressure adjuster Using a 3/32 in. hex wrench loosen set screw (78). For replacement parts, see Parts page 32. Loosen and remove knob (77). Disassembly Refer to F . 5 for the following instructions. From the body (76), remove shaft (73), u-cup (74), and o-ring (75). - Page 26 Repair Reassembly Assemble u-cup (74) onto shaft (73). Make sure lips Refer to F . 6 for the following instructions. face towards tank. Lubricate and assemble o-ring (75) into body (76). Assembly shaft (73) onto body (76). Assemble knob (77) onto shaft (73). Tighten screw (78) on knob (77).
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Page 27: Replacing Outlet Fitting And Thermistor Assembly
Repair Replacing outlet fitting and thermistor assembly Remove heat shield from tank front. For replacement parts, see Parts page 33. Remove tank cover, see Removing tank cover, At the base of the tank, cut away insulation tape page 21. and pull away insulation from the thermistor assem- bly (86). -
Page 28: Replacing Tank Heaters And Switch Assembly
Repair Replacing tank heaters and switch assembly Disconnect wires and pull out heaters (81) from inside tank. Replace if necessary. For replacement parts, see Parts page 33. Remove tank cover, see Removing tank cover, page 21. 8184 Remove heat shield from tank front. Using a phillips screw driver, remove switch assem- bly screws (85). -
Page 29: Parts
Parts Parts Housing assembly ◆ ◆ ti5200a Ref. Part No. Description Qty. 118190 ENCLOSURE 118191 CONTROL PANEL SCREW, cap; #10-32 x 1/4 BOLT, hex head; #10-32 x 1/2 WASHER, flat #10 WASHER, split #10 WIRE HARNESS NUT, ground, hex #10 118320 FUSE KIT 118262 AUXILIARY BYPASS CONNECTOR, not shown;... -
Page 30: Motor And Heat Shield Assembly
Parts Motor and heat shield assembly 31† 32† ti5198a Ref. Ref. Description Qty. Description Qty. WASHER, flat #10 MOTOR, 115 or 230 VAC WASHER, split #10 BRACKET, motor BOLT, hex; #10 - 32 x 1/2 in. WASHER, flat #10 BOLT, hex; 1/4 - 20 x 5/8 in WASHER, split #10 WASHER, split;... -
Page 31: Insulation And Base Assembly
Parts Insulation and base assembly ti5199a Ref. Description Qty. TANK ASSY.; 115 VAC or 230 VAC INSULATION INSULATOR, tank mounting PLATE, base ® WASHER, Kevlar WASHER, 1/4 in. WASHER, split; 1/4 in. SCREW, cap; 1/4 - 20 x 1 - 1/2 STRAP, ground WASHER, flat #10 WASHER, split #10... -
Page 32: Pump To Tank And Pressure Adjuster Assembly
Parts Pump to tank and pressure adjuster assembly 64† 70‡ 72*‡ 74*‡ 76‡ 71*‡ 73*‡ 77‡ 75*‡ 78‡ ti51961a Ref. Ref. Part No. Description Qty. Part No. Description Qty. 73*‡ SHAFT, pressure adjuster TANK 74*‡ SEAL, pressure adjuster SCREW, cap; 1/4 - 20 x 1 1/2 in 75*‡... -
Page 33: Front Assembly
Parts Front assembly 82† 83† ti5197a Ref. Part No. Description Qty. TANK HEATER, 115 VAC or 230 VAC 82† O-RING, Viton 83† FITTING, #6 JIC 119570 SWITCH ASSY., over temp. SCREW, #6 - 32 x 1/2 in. 118209 THERMISTOR ASSY.; includes 86a and 86b •SPRING, sensor •RETAINER, sensor... -
Page 34: Pump Assembly 118273
Parts Pump assembly 118273 103* ti5201a Ref. Description Qty. SEAL, housing pump shaft SEAL, pump shaft SEAL, retainer BEARING, thrust SHAFT, pump O-RING, seal housing, Viton BEARING, pump shaft PUMP, housing GEAR, driven GEAR, drive BEARING, gear PIN, dowel, 3/8 diameter 103* O-RING, Viton Included in T5 pump assembly repair kit 118151. -
Page 35: Schematics
Schematics Schematics 309831D... -
Page 36: Dimensions
Dimensions Dimensions 15.5 in. (394 mm) 12.5 in. (318 mm) 10.5 in. (267 mm) 309831D... -
Page 37: Technical Data
Technical Data Technical Data Application temperature up to 410°F (210°C) Tank temperature up to 395°F (202°C) Temperature accuracy ± 2% Melt rate 12 lb/hr (5.5 kg/hr) Viscosity range up to 20,000 centipoise Tank capacity 12 lbs (5 liters) Power consumption 115V: 1550 total watts Melt unit: 900 watts 230V: 2800 total watts... -
Page 38: Graco Standard Warranty
With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
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