Graco A-25 Replace Circuit Breaker Module

Repair

34 3A1570A

Replace Circuit Breaker Module

1. Turn main power OFF . Disconnect power

supply. Turn circuit breakers on to test.

2. Relieve pressure, page 13.

3. Using an ohmmeter, check for continuity across cir-

cuit breaker (top to bottom). If no continuity, trip

breaker, reset, and retest. If still no continuity,

replace breaker as follows:

a. Refer to electrical diagrams and table below.

Disconnect wires and remove bad breaker.

NOTE: To reference cables and connectors, see the

electrical diagrams and parts drawings on page 49 and

51.

b. Install new breaker and reconnect wires.

Ref. Size Component

CB1 50 A Hose Secondary (single)

CB2 40 A Hose Primary (double)

CB3 25 A Heater A (double)

CB4 25 A Heater B (double)

FIG. 12

ti17569a

CB1 CB2 CB3 CB4

Contents

Main Repair-Parts A-25 Air operated, electrically heated, plural component proportioner 3A1570A Contents Proportioner Models Systems Related Manuals Warni ngs Page Page Important Two-Component Material Information Isocyanate Conditions Material Self-ignition Keep Components A and B Separate Moisture Sensitivity of Isocyanates Changing Materials DataTrak Diagnostic Codes Temperature Control Diagnostic Codes E01: High fluid temperature Causes of E01 Errors Checks E02: High zone current E03: No zone current E04: Fluid Temperature Sensor (FTS) or thermocouple disconnected E05: Control board over temperature E06: Communication cable unplugged Communication Diagnostic Codes E30: Momentary loss of communication E99: Loss of communication Before Beginning Repair Pressure Relief Procedure Shutdown Park Flushing Troubleshooting Problems Pumps and Pressures Power Page Electronics Page Heater AB Hose Heat System Page Repair Disconnect Pump Connect Pump Remove Air Motor Install Air Motor Recirculation / Over Pressure Relief Block Air Inlet Filter / Water Separator (Auto Drain) Air Filter Element Removal Air Filter Element Installation Temperature Control Module Test SCR Circuit Replacing Temperature Control Assembly Modules Primary Heater Heater Element Line Voltage Page Thermocouple Overtemperature Switch Heated Hose Check Hose Connectors Check FTS Cables Fluid Temperature Sensor (FTS) Test/Removal Installation Transformer Primary Check Transformer Secondary Check Replace Transformer Replace Circuit Breaker Module Pump Lubrication System Fluid Inlet Strainer Screen Temperature Display Page Replace DataTrak Battery or Fuse Replace Battery Replace Fuse Accessories Recommended Spare Parts Parts Page 262572, Bare Reactor A-25 262614, Reactor A-25 with DataTrak and Wheels Page Control Panel, 262575 Temperature Control Wheel Kit, 262695 Fluid Manifold Fluid Inlet Kit, 262695 6 kw Dual Zone Heater, 24J788 A-25 Air Motor Pump Assembly, 262573 Air Tubing Connections Breaker Module, 262576 Reactor A-25 Wiring Schematic 380V WYE 3 PHASE 230V DELTA 3 PHASE 230V 1 PHASE DISPLAY F L PANEL 2 INCOMING POWER CONTROL HEATER MODULE HOSE HEATER MODULE 2 2 2 2 B-R A-R Simplified Schematic, Heater Controls 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 1 3 1 3 1 3 2 4 2 4 2 4 50A 178CB 183CB Tech nical Da ta Graco Standard Warranty Graco Information