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Troubleshooting 

18

3A1182B

Pressure Control Repair

Motor Control Board Diagnostics

NOTE: 

Keep a new transducer on hand to use for test.

1.

For sprayers with digital display, see 

Digital Display 

Messages

, page 19

2.

Remove screws and cover.

3.

Turn ON/OFF switch ON.

4.

Observe LED operation and reference following 
table: 

Relieve pressure and unplug sprayer before servicing 
control board. See

 Pressure Relief Procedure

page 7.

NOTICE

Do not allow sprayer to develop fluid pressure with-
out transducer installed. Leave prime/pressure relief 
valve open if test transducer is used.

LED 

BLINKS

SPRAYER OPERATION

INDICATES

WHAT TO DO

Once

Sprayer runs

Normal operation

Do nothing

Two times 
repeatedly

Sprayer shuts down and 
LED continues to blink two 
times repeatedly

Run away pressure. Pressure 
greater than 4500 psi (310 bar, 
31 MPa) or damaged pressure 
transducer.

Replace motor control board or 
pressure transducer.

Three times 
repeatedly

Sprayer shuts down and 
LED continues to blink four 
times repeatedly.

Pressure transducer is faulty or 
missing

Check transducer connection. 
Open prime/pressure relief valve. 
Substitute new transducer for 
transducer in sprayer. If sprayer 
runs, replace transducer.

Four times 
repeatedly

Sprayer shuts down and 
LED continues to blink four 
times repeatedly.

Line voltage is too high

Check for voltage supply prob-
lems

Five times 
repeatedly

Sprayer does not start or 
shuts down and LED con-
tinues to blink five times 
repeatedly

Motor fault

Check for locked rotor, shorted 
wiring or disconnected motor. 
Repair or replace failed parts.

Six times 
repeatedly

Sprayer shuts down and 
LED blinks six times 
repeatedly

Motor is too hot or there is a 
fault in the motor thermal 
device

Allow sprayer to cool. If sprayer 
funs correctly when cool, check 
motor fan function and air flow. 
Keep sprayer in cool location. If 
sprayer does not run when cool 
and continues to blink 6 times, 
replace motor.

Eight times 
repeatedly

Sprayer stops or does not 
run

High input voltage

Check power source for correct 
voltage

Содержание 3A1182B

Страница 1: ...lessco EZ Rent 570 Hi Boy 24F585 EZ Rent 570 Lo Boy 24F586 Airlessco EZ Rent 700 Hi Boy 24F588 EZ Rent 700 Lo Boy 24F587 3000 psi 20 7 MPa 207 bar Maximum Working Pressure Important Safety Instruction...

Страница 2: ...lectric shock When repair or replacement of the cord or plug is required do not connect the grounding wire to either flat blade terminal The wire with insulation having an outer surface that is green...

Страница 3: ...ng halogenated hydrocarbons Keep spray area well ventilated Keep a good supply of fresh air moving through the area Keep pump assembly in a well ventilated area Do not spray pump assembly Do not smoke...

Страница 4: ...Know how to stop the unit and bleed pressure quickly Be thoroughly familiar with the controls EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury Always wear appropriate gloves eye prote...

Страница 5: ...or on skin inhaled or swallowed 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 PE...

Страница 6: ...pump and relieves pressure from gun hose and tip D Prime Pressure Relief Valve Open Position Relieves pressure from gun hose and tip and primes the unit when in the open position Valve is in open pos...

Страница 7: ...that pressure hasn t been relieved due to damaged Prime Pressure Relief Valve or other reason slowly loosen the tip nut or hose coupling to relieve the pressure Setup Connect the hose and gun 1 Remove...

Страница 8: ...ger lock in engaged and there is no spray tip in the gun Refer to the separate instruction manual provided with gun for safety fea tures and how to engage the trigger lock 2 Pour enough clean compatib...

Страница 9: ...nimum pressure place prime pressure relief valve in prime open position and engage the gun trigger lock 12 If you are going to store the sprayer remove the suction tube or pump from the solvent pail f...

Страница 10: ...t such as mineral spirits or Graco or Airlessco Pump Armor For oil base paint flush with mineral spirits For water base paint flush with water then min eral spirits and leave the pump hose and gun fil...

Страница 11: ...e worn brushes 8 Install new brushes in the reverse order To increase brush life new brushes Part 331778 for 110 volt need to have a run in period After changing brushes set the machine for spraying W...

Страница 12: ...lve assembly by plac ing the suction seat O ring suction ball and suction ball guide in the suction nut 7 and screw onto fluid pump body 9 5 Reconnect the sensor to the fluid pump body 9 Hold sensor w...

Страница 13: ...ton 14 7 Take the spacer 15 and slide over the top of the piston 14 8 Take three spring washers 16 and slide over the top of the piston 14 in the following order First spring curve facing up Second sp...

Страница 14: ...box 4 Lay unit on its back and disassemble gearbox 5 Inspect bearings 15 18 Crosshead Assembly 16 Gearcrank 17 and sleeve bearing 10 inside cover assembly 14 for wear damage Replace worn damaged part...

Страница 15: ...switch 3 Use a 9 16 wrench to loosen the nut on the toggle switch shaft 4 Reassemble in reverse order Liquid Crystal Display LCD 1 Lower pressure control assembly as described above 2 Unscrew the two...

Страница 16: ...ackings and or piston worn Tighten packing nut repack unit Unit does not maintain good spraying pressure Blown spray tip Replace spray tip Packings and or pistons worn Repack unit Upper seat worn Repl...

Страница 17: ...replacement sensor available use a multi meter to test the resistance across the red and black wires of the sensor be sure to test the plug You should read 1 5 3 5k ohms A faulty sensor usually reads...

Страница 18: ...ree times repeatedly Sprayer shuts down and LED continues to blink four times repeatedly Pressure transducer is faulty or missing Check transducer connection Open prime pressure relief valve Substitut...

Страница 19: ...ure transducer faulty bad connection or broken wire Check transducer connection Open prime pressure relief valve Substitute new transducer for transducer in sprayer If sprayer runs replace transducer...

Страница 20: ...Clean carefully Tip damaged Replace with new tip Craters or pock marks bubbles on work Solvent balance Use 1 to 3 short solvents remainder long solvents this is most likely to happen with material of...

Страница 21: ...fluid pump body 8 Servicing Gear Box Assembly 1 Remove fluid pump see page 11 2 Remove frame from the gearbox by loosening the four mounting screws 3 Separate cover assembly from box by removing bolt...

Страница 22: ...480 1 2 3 4 5 9 6 7 10 7 Ref Part Description Qty 1 867145 COVER 1 2 301356 SPRING 1 3 867377 O RING 1 4 867214 FILTER 60 MESH 1 5 867647 SUPPORT 1 6 867077 BASE 1 7 867420 PLUG 2 9 867309 NIPPLE 3 8...

Страница 23: ...48 BOOT RUBBER BOOT 2 77 HSE1450 HOSE PAINT HOSE 1 4X50 1 78 289316 GUN SPRAY 009 1 124 121112 SCREW CAP SOCKET HEAD 4 127 867551 SCREW 6 32X1 25 PH PN HD 2 128 867329 NUT NUT 6 32 X 109 TOP LOCK 2 12...

Страница 24: ...Description Qty 1 331491 MOTOR 1 2 331273 FRAME 1 3 16F551 FASTENER THREAD EXTERNAL 4 4 866356 SPACER SPACER 75 LG PVC 2 5 867736 WHEEL 2 6 143029 COLLAR SCREW SET 2 7 331048 BOOT RUBBER BOOT 2 77 HS...

Страница 25: ...7798 DISPLAY WINDOW 1 30 116167 KNOB POTENTIMETER 1 33 CONTROL BOARD 120V 1 34 331342 SCREW MACH PANHEAD 4 76 866049 CABLE ASSY 9 LG 1 92 100272 WASHER LOCK 6 94 342513 LABEL OFF ON 1 95 HEAT SINK MAC...

Страница 26: ...ive Parts Diagram 42 156 213 31 13 112 8 1 35 36 37 39 40 41 43 44 45 46 47 47 48 48 49 51 55 56 57 58 59 60 61 62 63 68 68 64 66 69 70 71 9 10 18 18 11 14 16 16 17 32 72 15 34 12 13 121 120 35a 35b 3...

Страница 27: ...OSSHEAD ASSY 1 40 331074 SPACER SPACER 2 691 LONG 2 41 866482 PUMP PAINT ASSY includes 41a 1 41a 331093 PISTON ASSEMBLY not shown 1 42 866082 PIN CROSS PIN 375 1 43 331117 SLEEVE 1 44 331062 SPRING RE...

Страница 28: ...Parts 28 3A1182B Packing Replacement 6 7 27 11 12 13 15 4 21 14 26 1 1 3 23 23 2 2 2 24 25 16 16 16 20 17 19 22 18 5 ti16057a...

Страница 29: ...RETAINER 1 11 331026 OUTLET SEAT 1 12 111457 O RING 1 13 331027 OUTLET BALL 1 14 PISTON 1 15 331018 SPACER 1 16 331025 WASHER SPRING 3 17 331022 MALE GLAND 1 18 331023 PACKING POLYETHYLENE 3 19 331021...

Страница 30: ...2 3 ti16061a Hi Boy Chassis 331284 Ref Part Description Qty 1 301348 BYPASS HOSE ASSEMBLY 1 2 331034 SUCTION NUT 1 3 331292 SUCTION SEAT ASSEMBLY 1 4 331400 INLET TUBE 1 5 187190 INLET STRAINER 1 Lo...

Страница 31: ...lug from Motor Black White Black Green 2 x Red Black Black Black ti2471b 1 3 5 6 7 Ref Part Description Qty Ref Part Description Qty 1 331163 ELECTRICAL CORD110V 1 5 PRESSURE CONTROL ASSEMBLY 110V 1 3...

Страница 32: ...2 3 4 5 6 7 Ref Part Description Qty Ref Part Description Qty 1 867816 SCREW 2 4 117281 SPACER 2 2 867804 LABEL PRESSURE CONTROL 1 5 867817 NUT 2 6 867731 WASHER 2 3 867798 WINDOW 1 7 LCD DISPLAY PSI...

Страница 33: ...ggle switch ON and adjust to low pressure on the pressure control knob The unit will now self prime STEP 4 4A Wait about one minute until fluid comes out of the return tube smaller diameter tube 4B Tu...

Страница 34: ...into prepared bucket of water or mineral spirits STEP 3 NOTE Release the gun trigger lock very carefully 3A Turn the Prime PR Valve to be closed position Adjust the pressure control knob for minimum p...

Страница 35: ...nerator required 3000 w minimum Maximum working pressure 3000 psi 21 MPa 207 bar Maximum delivery gpm lpm 0 86 3 26 Maximum tip size 0 025 Fluid outlet npsm 1 4 in Wetted parts zinc and nickel plated...

Страница 36: ...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...

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