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Troubleshooting

3A0231F

19

Troubleshooting

Schematics

For standard machines,

 the schematics will be 

included in the 4104A Parts manual. 

For custom machines, 

the schematics will be included 

in the assembly drawings manual.

Perfor

Pressure Relief Procedure

 before perform-

ing any troubleshooting procedure.

Problem

Cause

Solution

Metering valve stalling and no mate-
rial being dispensed despite ade-
quate input pressure

Blocked needle

Check needle for cured material, 
replace as required

Flow control valve closed

Open needle

Metering valve not discharging nor-
mal or full volume

Low material level in reservoirs 

Fill material reservoirs and prime the 
machine

Air in material tank

Fill reservoir and prime machine

Material leaks past spool valve

Spool valve worn or damaged

Replace the spool valve

Spool will not actuate

Low air pressure

Increase air pressure to approxi-
mately 20-30 psi

Cured material on spool

Check spool for cured material, 
replace as required

Seals are worn

Replace seals

Summary of Contents for A2A03010

Page 1: ...138 bar Maximum Outlet Fluid Working Pressure Metal Sleeves 1200 psi 8 MPa 83 bar Maximum Material Inlet Pressure Plastic Sleeves 400 psi 2 8 MPa 28 bar Maximum Material Inlet Pressure 100 psi 0 7 MP...

Page 2: ...Typical Feed System Components continued 11 Metering Valve 12 Setup 13 Typical Installation 13 Valve Mounting Diagram 14 Startup 15 Adjusting the Shot Size 16 Operation 17 Sequence of Operation 17 Pre...

Page 3: ...d components with cycle detection A2A03057 1052 10A 2RS1 375 V CD 1 Inch 1 inch storke 0 375 diameter rod nitrided tool steel wetted components with cycle detection A2A03088 1052 10A 2TT1 062 V 1 Inch...

Page 4: ...s wear impervious gloves when spraying or cleaning equipment If this equipment is used with isocyanate material see additional information on isocyanates in Iso cyanate Conditions Section of this manu...

Page 5: ...ine manu facturer s replacement parts only 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 a...

Page 6: ...imed solvents which may contain moisture Always keep solvent containers closed when not in use Always lubricate threaded parts with ISO pump oil or grease when reassembling Changing Materials When cha...

Page 7: ...ts The complete system is enclosed See Sequence of Operation on page 17 Optional Cycle Detection Spool Sensors The spool sensors are magnetic reed switches and must be connected to an electrical contr...

Page 8: ...rial h PX RET signal is made and Metering Rod is down Dispense Material Complete i Solenoid Open Spool Valve EXTend is deacti vated j Solenoid Close Spool Valve RETract is acti vated k PX OSV signal d...

Page 9: ...Configurations FIG 1 R GREEN GREEN YELLOW YELLOW 0 TIMER DISPENSE Liquid Control R PRESSURE SYSTEM REG 1 REG 2 AUXILIARY PRESSURE G 1 G 2 OFF ON PB 1 SW 1 PL 1 TR 1 HAND OFF SW 2 POWER AUTO START Val...

Page 10: ...D WEARING SAFETY GLASSES WARNING F 20 0 psi 0 20 oz Cartridge Feed with Mounting Post 5 Gallon Pail Cover with Diaphragm Pump 1 Gallon Ram and Pump 5 Gallon Pail Cover with Diaphragm Pump and Agitator...

Page 11: ...tinued FIG 3 R 0 12 8 4 psi 30 22 19 15 26 R 0 12 8 4 psi 30 22 19 15 26 5 Gallon Tank with Diaphragm Pump and Stand 5 Gallon Tank with 5 1 Pump and Stand 10 Gallon Tank with Diaphragm Pump Agitator V...

Page 12: ...OW Key A Material Inlet C Grounding Lug D Spool E Metering Rod F Oil Cup Retaining Block G Extend Air Inlet H Retract Air Inlet J Dispense Air Inlet K Reload Air Inlet L Extend Air Flow Adjustment Kno...

Page 13: ...s 5 Connect each 1 4 in outside diameter supplied air line to the corresponding control solenoid See Component Identification starting on page 9 6 Connect chemical lines from feed system to meter ing...

Page 14: ...1 062 625 8 32 X 38 DP 2 PLACES 126 128 X 25 DP FOR 1 8 DOWEL PINS 2 PLACES 312 C BORE FOR 95 0503 00 O RING 2 PLACES OUT IN 7 88 NEEDLE 50 1 44 3 6 MAX 1 8NPT MAT L INLET 0 0 750 937 0 312 874 1 938...

Page 15: ...ed pressure 3 Dispense several full stroke shots until material is air free and has good shut off at the nose NOTE Very viscous compressible materials may con tinue to droll after system is primed Red...

Page 16: ...tate the shot size locking ring counterclockwise to loosen 2 Rotate the shot size adjuster to adjust shot size 3 Rotate the shot size locking ring clockwise to tighten 4 Dispense into waste container...

Page 17: ...g chambers by a pressurized feed system Outlet port is blocked Metering rod is retracted to a precise position deter mining the volume of each material Step 2 Shift The balanced spool shifts to the di...

Page 18: ...Shutdown 1 Perform Pressure Relief Procedure 2 Inspect the metering rod for material buildup Clean as necessary 3 Lubricate the metering rod with compatible lubricant such as mesamoll or silicone oil...

Page 19: ...quate input pressure Blocked needle Check needle for cured material replace as required Flow control valve closed Open needle Metering valve not discharging nor mal or full volume Low material level...

Page 20: ...Electrical Requirements 20 3A0231F Electrical Requirements Electrical requirements for 1052 10A shown FIG 8...

Page 21: ...Parts 3A0231F 21 Parts Non Cycle Detect 13 31 1 2 3 4 5 8 29 17 33 17 30 18 19 21 20 22 23 26 15 27 28 25 24 30 17 14 15 16 12 11 10 34 17 29 7 6 9 31...

Page 22: ...STON spool 2 19 A2010002 CAP end cap assy spool 2 18 B3000068 SCREW shc 8 Ref No Description RS 062 RS 125 RS 188 RS 250 RS 375 SS 062 SS 125 SS 188 SS 250 SS 375 Qty A2A03085 A2A03073 A2A03010 A2A030...

Page 23: ...Parts 3A0231F 23 Cycle Detect 1 2 3 4 5 37 38 29 17 8 13 31 33 17 30 18 39 19 37 21 20 22 23 26 15 28 27 31 25 24 37 30 17 14 15 16 12 11 10 7 6 38 37 40 9 34 17 29...

Page 24: ...1 A2010112 PISTON assy spool magnet 2 18 B3000006 SCREW shc 8 39 B3500049 SCREW shs 2 37 F0200043 SWITCH reed 4 38 F0200104 CLAMP reed clamp tie rod 2 Ref No Description RS 062 RS 125 RS 188 RS 250 RS...

Page 25: ...5 1 Ref No Part No Description Qty 7 94 1527 98 FITTING elbw strt 1 9 95 0904 00 O RING vit 1 3 A2000148 BLOCK ndl single 1 1 A2000164 BLOCK inlet 1 2 A2000271 GASKET tef fgls 1 4 B3500008 SCREW shc...

Page 26: ...the o rings 28 12 Remove the four Screws 18 and the End Cap 19 on each side of the valve Disconnect the short air line sections on each side 13 Remove the two Spool Shift Pistons 21 from the End Caps...

Page 27: ...tall the Seal Cup 12 into the Divorced Section 10 over the Metering Rod 11 and slide the lubri cated Posipak Seal 13 over the Metering Rod keeping the O ring side of the Posipak facing down The ends o...

Page 28: ...prevent binding due to misalignment like you would tighten lug nuts on a car tire 20 Install the short air lines on the left and right sides of the valve Install the Needle Block Assembly 21 Install a...

Page 29: ...400 psi 2 8 MPa 28 bar Supplied Air Requirements 1 to 3 cfm at 80 psi to 100 psi Shot Size Range depending on metering rods selected 0 002 cc to 3 600 cc Maximum Cycle Rate application dependent heat...

Page 30: ...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 EXPRE...

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