Graco Fondue Maker 309160L User Manual

Instructions  
Hotmelt/Warm Melt  
Heated Hose  
309160L  
EN  
For use with Graco temperature control systems for nonflammable hotmelt  
and warm melt sealants and adhesives.  
WARNING  
Fire, Explosion, and Electric Shock Hazard  
The operating and safety features of these hoses  
are designed for use only with Graco temperature  
control sysems. To reduce the risk of serious injury,  
never connect these hoses to any other device.  
Important Safety Instructions  
Read all warnings and instructions in this manual.  
Save these instructions.  
PH00046  
 
Symbols  
Warning Symbol  
Caution Symbol  
WARNING  
CAUTION  
This symbol alerts you to the possibility of serious  
injury or death if you do not follow the instructions.  
This symbol alerts you to the possibility of damage to  
or destruction of equipment if you do not follow the  
instructions.  
WARNING  
ELECTRIC SHOCK HAZARD  
The hoses must be grounded. Improper grounding, set–up or usage of the hoses can cause electric  
shock.  
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Turn off and disconnect power before installing or servicing hoses.  
Connect to grounded power source.  
All electrical wiring must be done by a qualified electrician and comply with all local codes and  
regulations.  
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Never cut or puncture a hose cover.  
Do not expose to rain. Store indoors.  
SKIN INJECTION HAZARD  
High–pressure fluid from hose leaks, or ruptured components will pierce skin. This may look like just a  
cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.  
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Inspect hose before each use for cuts, bulges, kinks or any other damage.  
Replace damaged hose immediately.  
Replace hoses proactively at regular intervals based on your operating conditions.  
Tighten all fluid connections before operating the equipment.  
Keep clear of leaks.  
Do not stop or deflect leaks with your hand, body, glove, or rag.  
Never exceed hose Maximum Pressure or Temperature ratings.  
Only use chemicals that are compatible with wetted parts. See Technical Data in this manual.  
Read MSDSs and fluid and solvent manufacturer  
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Follow the Pressure Relief Procedure when you stop spraying/dispensing and before cleaning,  
checking, or servicing equipment.  
THERMAL EXPANSION HAZARD  
Fluids subjected to heat in confined spaces, including hoses, can create a rapid rise in pressure due to  
the thermal expansion. Over–pressurization can result in equipment rupture and serious injury.  
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Open a valve to relieve the fluid expansion during heating.  
Replace hoses proactively at regular intervals based on your operating conditions.  
BURN HAZARD  
Equipment surfaces and fluid that  
burns:  
o avoid severe  
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Do not touch hot fluid or equipment.  
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3
 
WARNING  
TOXIC FLUID OR FUMES HAZARD  
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or  
swallowed.  
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Read MSDSs to know the specific hazards of the fluids you are using.  
Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.  
Always wear chemically impermeable gloves when spraying, dispensing, or cleaning equipment.  
FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD  
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help  
prevent fire and explosion:  
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Use equipment only in well ventilated area.  
Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic  
drop cloths (potential static arc).  
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Keep work area free of debris, including solvent, rags and gasoline.  
Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes  
are present.  
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Ground all equipment in the work area. See Grounding instructions.  
Use only grounded hoses.  
Hold gun firmly to side of grounded pail when triggering into pail.  
If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment  
until you identify and correct the problem.  
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Keep a working fire extinguisher in the work area.  
EQUIPMENT MISUSE HAZARD  
Misuse can cause death or serious injury.  
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Do not operate the unit when fatigued or under the influence of drugs or alcohol.  
Do not exceed the maximum working pressure or temperature rating of the lowest rated system  
component. See Technical Data in all equipment manuals.  
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Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all  
equipment manuals. Read fluid and solvent manufacturer  
about your material, request MSDS from distributor or retailer.  
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Do not leave the work area while equipment is energized or under pressure. Turn off all equipment  
and follow the Pressure Relief Procedure when equipment is not in use.  
Check equipment daily. Repair or replace worn or damaged parts immediately with genuine  
manufacturer  
.
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Do not alter or modify equipment.  
Use equipment only for its intended purpose. Call your distributor for information.  
Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.  
Do not kink or over bend hoses or use hoses to pull equipment.  
Keep children and animals away from work area.  
Comply with all applicable safety regulations.  
PERSONAL PROTECTIVE EQUIPMENT  
You must wear appropriate protective equipment when operating, servicing, or when in the operating  
area of the equipment to help protect you from serious injury, including eye injury, hearing loss, inhala-  
tion of toxic fumes, and burns. This equipment includes but is not limited to:  
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Protective eyewear, and hearing protection  
Respirators, protective clothing, and gloves as recommended by the fluid and solvent  
manufacturer.  
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309160  
 
Introduction  
Each hose assembly must be controlled by a Graco  
zone controller. The amount of hose used depends on  
the zone controllers available for control.  
The hose has two electrical connectors with cables,  
each extending from the end of the hose.  
The large rectangular connector is the machine end  
and has 8 foot (2.42 m) of cable (see Fig. 1). The  
small square connector is the gun end and has 2 foot  
(0.6 m) of cable (see Fig. 2).  
PH00051  
Fig. 2  
Connect the machine end connector to the Graco  
temperature controller by pushing the connector on the  
mating receptacle of the temperature controller or  
accessory device and securing the latch.  
Connect the gun end connector to any temperature  
controller accessory device. These include Graco  
manual and automatic hot melt dispense valves,  
pressure compensators, manifolds, headers, and  
pressure regulators.  
Fig. 1  
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5
 
Installation  
4. Do not flex hose when cold.  
WARNING  
THERMAL EXPANSION HAZARD  
Fluids subjected to heat in confined  
spaces, including hoses, and create a  
rapid rise in pressure due to the thermal  
expansion. Over–pressurization can  
result in equipment rupture and serious injury.  
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S
Open a valve to relieve the fluid expansion  
during heating.  
Replace hoses proactively at regular intervals  
based on your operating conditions.  
5. Use hose support spring.  
WARNING  
SKIN INJECTION HAZARD  
To reduce the risk of serious injury,  
follow the Pressure Relief Procedure  
on page 7 whenever you are instructed  
6. Do not clamp, squeeze, or zip tie hose.  
to relieve pressure.  
NOTE: Pressure check the hose assemblies. Refer to  
your system operation manual for priming and pressur-  
izing the fluid hoses. Check carefully for leaks at the  
hose connections. If there are leaks, relieve the pres-  
sure as instructed on page 7.  
7. Minimum bend radius:.  
Fitting Radius  
–4  
–6  
8 in. (203 mm)  
8 (203)  
1. Do not use hose to pull the equipment.  
–8  
10 (254)  
12 (305)  
14 (356)  
18 (457)  
22 (559)  
26 (660)  
–10  
–12  
–16  
–20  
–24  
8. Do not bend or crimp hose.  
2. Use 2 wrenches to tighten. Torque to specification:  
Torque,  
Fitting in–lb ( NSm)  
–4  
–6  
150 (16.9)  
300 (33.9)  
9. Do not twist hose.  
–8  
500 (56.5)  
–10  
–12  
–16  
–20  
–24  
700 (79.1)  
1000 (113.0)  
1400 (158.2)  
2100 (237.3)  
3000 (339.0)  
10. Use proper length hose.  
3. Do not tape or cover hose.  
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309160  
 
Operation and Maintenance  
Pressure Relief Procedure  
Operation  
WARNING  
WARNING  
This equipment should not be used with  
more than one type of fluid due to poten-  
tial compatibility issues which could  
result in an unpredictable reaction.  
Graco recommends using new hoses  
when chemicals are changed or care  
SKIN INJECTION HAZARD  
The system pressure must be manually  
relieved to prevent the system from  
starting or dispensing accidentally. Fluid  
under high pressure can be injected through the  
skin and cause serious injury. To reduce the risk of  
an injury from injection, splashing fluid, or moving  
parts, follow the Pressure Relief Procedure  
whenever you:  
must be taken to assure that all traces of one  
chemical are removed before introducing a second  
chemical.  
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are instructed to relieve the pressure,  
stop dispensing,  
check or service any of the system equipment,  
or install a new or clean the dispense gun  
tip/nozzle.  
CAUTION  
Do not pressurize hose until operating tempera-  
ture has been reached.  
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Operate at lowest possible temperature and  
pressure necessary for application.  
1. Lock the gun trigger safety.  
Hose must be vented during startup and shut-  
down.  
The dispense valve must be kept open over a  
waste container while the system is heating up  
and also when cooling down. This will prevent a  
pressure build–up caused by fluids or gasses  
expanding from the heat.  
2. Shut off the air to the supply pumps.  
3. Turn off the power (air) to the proportioning pump.  
4. Unlock the spray gun trigger safety.  
Refer to your system operation manual for complete  
startup and operating instructions.  
5. Hold a metal part of the gun firmly to the side of a  
grounded metal pail, then trigger the gun to relieve  
pressure.  
Maintenance  
WARNING  
SKIN INJECTION HAZARD  
Do not mend or repair any part of a hose  
assembly. If the hose is damaged,  
6. Lock the trigger safety again.  
replace it immediately to avoid serious  
injury from fluid injection and electric shock.  
7. If you suspect that the dispense valve or hose is  
completely clogged, or that pressure has not been  
fully relieved after following the steps above, very  
slowly loosen the tip retaining nut or hose end  
coupling to relieve pressure gradually, then loosen  
completely. Wear protective gloves to avoid skin  
injection or burns. Now clear the tip/nozzle or  
hose.  
If the hose is not heating, be sure the connector at the  
hose control box is firmly plugged in. If that does not  
correct the problem, relieve the fluid pressure in the  
pump and hoses, as instructed at left. If the hose is  
faulty or the problem not corrected, replace the hose.  
See Troubleshooting on page 8 for electrical mea-  
surements.  
8. Be sure the fluid is cool before disconnecting the  
hoses.  
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7
 
Troubleshooting  
9. Check the continuity of the hose components.  
Approximate RTD resistance values at various temper-  
atures.  
a. Use an ohmmeter to check the electrical  
resistance at the heating element pins be-  
tween pins A1 and A2 of the machine end  
connector (A) that attaches to the heated hose  
control. See Fig.1. The resistance of the  
heating element for the various lengths of  
coupled hose assemblies is given in the follow-  
ing coupled hose chart.  
Pins A4 & A5  
Approximate Resistance Values  
(ohms)  
Temperature  
C
F
16  
60  
106  
110  
115  
119  
123  
128  
132  
136  
140  
144  
149  
153  
160  
161  
165  
170  
174  
177  
27  
80  
38  
100  
120  
140  
160  
180  
200  
220  
240  
260  
280  
300  
320  
340  
360  
380  
400  
49  
60  
71  
Pins A1 & A2  
Length/ft Resistance Values (ohms) at 230 VAC  
82  
6
176  
106  
71  
+/– 18  
+/– 11  
+/– 7  
+/– 5  
+/– 4  
93  
10  
15  
20  
25  
104  
116  
127  
138  
149  
160  
171  
182  
193  
204  
53  
42  
Any resistance reading outside the range may indicate  
a faulty hose  
The resistance values of the RTD will vary with tem-  
perature. An approximation of hose temperature must  
be made to verify the resistance reading of the RTD  
across pin A4 and A5 is correct.  
10. Check all hose connections to be sure they are  
b. Between pin A4 and A5 of the large machine  
end connector, the RTD resistance must be  
within the range of the following chart.  
securely tightened.  
11. Ground the system.  
8
309160  
 
Troubleshooting  
Make sure there is electrical continuity (<10Ω) be-  
tween the following pins of the large machine end  
connector and the small gun end connector  
Continuity Between Connectors  
Machine End Gun End  
B1  
1
Lack of electrical continuity between any of these pins  
is a failure of the hose. Replace the hose assembly.  
B2  
B3  
2
5
B4  
3
4
B5  
C1  
6
C2  
7
GND  
GND  
Technical Data  
Maximum fluid working pressure . . . . . . . . . . . . . . . . . . . . See table on page 2  
Maximum working temperature . . . . . . . . . . . . . . . . . . . . . See table on page 2  
Hose fluid fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See table on page 2  
Power required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 VAC, 50/60 Hz  
Wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PTFE core, SST couplings  
Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 3 watts/linear foot of hose  
(164 10 watts/linear meter of hose)  
Minimum Bend Radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hose with No. 6 – No. 16 core = 8 in. (20 cm)  
Hose with No. 20 core = 12 in. (30 cm)  
309160  
9
 
Graco Standard Warranty  
Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the  
date of sale to the original purchaser for use. 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. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written  
recommendations.  
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by  
faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or sub-  
stitution of non–Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of  
Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture,  
installation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.  
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for  
verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The  
equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect  
in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and  
transportation.  
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT  
NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.  
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other  
remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any  
other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the  
date of sale.  
Graco makes no warranty, and disclaims all implied warranties of merchantability and fitness for a particular purpose in connection  
with accessories, equipment, materials or components sold but not manufactured by Graco. These items sold, but not manufactured  
by Graco (such as electric motors, switches, hose, etc.), are subject to the warranty, if any, of their manufacturer. Graco will provide  
purchaser with reasonable assistance in making any claim for breach of these warranties.  
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment  
hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract,  
breach of warranty, the negligence of Graco, or otherwise.  
FOR GRACO CANADA CUSTOMERS  
The parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings  
entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnais-  
sent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires  
exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procedures concernées.  
Graco Information  
TO PLACE AN ORDER, contact your Graco distributor or call to identify the distributor closest to you:  
Phone: 612–623–6921 or Toll Free: 1–800–328–0211 Fax: 612–378–3505  
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.  
Original instructions. This manual contains English. MM 309160  
Graco Headquarters: Minneapolis  
International Offices: Belgium, China, Japan, Korea  
GRACO INC. AND SUBSIDIARIES S P.O. BOX 1441 S MINNEAPOLIS MN 55440–1441 S USA  
Copyright 2000, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.  
Revised December 2012  
10  
309160  
 

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