Transformer - Graco Reactor A-25 Repair Parts

Transformer

Test Hose Continuity
1. Turn main power OFF
supply. Leave hose plugged in.
2. See F . 9. Disconnect 6-pin transformer connector
IG
(P) from J13 at temperature control board. Remove
red wire from transformer hose length tap you are
using (R).
3. Using an ohmmeter, check between pin 6 (P6) of
connector (not board) and red wire. There should be
continuity.
4. If test fails, trace wires until failure is located.
Test Transformer Wire Harness Continuity
1. Turn main power OFF
supply. Leave hose plugged in.
2. See F . 9. Disconnect 6-pin transformer connector
IG
(P) from J13 at temperature control board.
3. Check for continuity between:
a. Connector pin 1 (P1) and T1 on 20A hose circuit
breaker (817A).
b. Connector pin 2 (P2) and PB on transformer ter-
minal block (B).
28
. Disconnect power
. Disconnect power
c. Connector pin 3 (P3) and T2 on 20A hose circuit
breaker (817A).
d. Connector pin 4 (P4) and PA on transformer ter-
minal block (B).
e. Connector pin 5 (P5) and T3 on 50A hose circuit
breaker (806).
Test Current Sensor Continuity
1. Turn main power OFF
supply.
2. Disconnect 14-pin connector from J1 on tempera-
ture control board, page 20.
3. Using an ohmmeter, test for continuity across pins 5
and 6 of connector (not board). Reading should be
20-25 ohms. If not, replace current sensor (32). See
F . 9.
IG
Test In-rush Current Limiter Continuity
1. Turn main power OFF
supply.
2. See F . 9. Using an ohmmeter, check for continuity
IG
between the two leads of black in-rush limiter (L).
Reading should be 5-20 ohms. If not, replace
in-rush limiter; order 248113 Transformer Repair Kit.
Repair
. Disconnect power
. Disconnect power
309813B