Graco 25R128, Установка - Работа - Ремонт

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Troubleshooting
54 3A7526B
Leakage from Static Mixer
Package (AH) tip Air in Static Mixer Package (AH) Slow speed purging
MD2 Dispense Valve (AE) not
closed
1. Verify MD2 Dispense Valve’s (AE) inlet
air pressure.
2. Clean blockage between needle and
seat.
3. Verify solenoid valve status.
MD2 Dispense Valve (AE) needle
and/or seat worn out (pressure
reduces after closing the valve) Replace MD2 Dispense Valve (AE) needle
and/or seat
Damaged or missing gasket (O-ring)
between seat and housing (hard
seat only) Replace gasket (O-ring)
Insufficient valve off time Increase valve off time to release pressure
in Static Mixer Package (AH)
High pressure MD2 Dispense Valve (AE) clogged Clean MD2 Dispense Valve (AE)
Material in Static Mixer Package
(AH) and/or needle cured Replace Static Mixer Package (AH) and/or
needle
Dispense speed unsuitable for Static
Mixer Package (AH) and needle
1. Replace the current Static Mixer
Package (AH) and/or needle with a
bigger gauge.
2. Slow down dispensing speed to
decrease working pressure (continuous
and stable dispensing pressure should
be within a range of 150-400 psi).
Pressure sensor error Replace pressure sensor
Pressure imbalance One side of MD2 Dispense Valve
(AE) or fluid lines clogged Clean the high pressure side of MD2
Dispense Valve (AE) or fluid lines
Air or hole in material Prime the system
Low pressure side piston worn out Replace the piston
“Home” error Error not reset Pull up E-stop button and press “reset”
Pressure higher than set point Go to the Advanced Screen of control box,
select ‘Dispense valve’ to open MD2
Dispense Valve (AE) to reduce pressure
“Home” button flashing and waiting
1. Verify reload pressure value is correctly
set.
2. Verify air supply.
3. Inspect low level sensor status.
4. Confirmed inlet ball valve is opened (if
installed).
5. Verify cartridge or pail is not empty.
6. Verify supply pump is working.
Servo motor alarm
1. Inspect ball screw and slides are
functional.
2. Verify motor and encoder cable are
connected.
Problem Cause Solution