Steris Amsco 3085 SP, Maintenance Manual

Page: 96 / 228

5-4
764332-898
12. Table cannot be turned ON by
hand control. Electrical system
malfunction. 1. Check table operation using override
switches - proceed to Situation 13 .
2. Listen for operation of CR3 in power-
control assembly when ON/OFF
switches are activated - check
continuity of ON circuit from hand
control to power assembly and either
replace hand control or repair open
wire.
3. Listen for operation of CR3 in power-
control assembly when ON/OFF
switches are activated - check for
24 Vdc on P1-6 and P1-9 and replace
power control PC board if no voltage.
4. Check for 5 Vdc on table control PC
board - check P5/P1 cable continuity
and repair or replace cable.
5. Check for 5 Vdc on table control PC
board - replace table control PC board.
13. No override switch operation
with line cord plugged in. Electrical system
malfunction. 1. Check F1 and F2 line fuses - replace if
missing or blown.
2. Check CB1 - reset circuit breaker.
3. Check for 24 Vdc across P6-2 and P6-13
- replace power control PC board.
4. Check for 24 Vdc at hydraulic pump
motor terminal board with a switch
activated - repair or replace pump
motor if voltage is present.
5. Check for "E motor on signal" at P5-15
with a switch activated (should be at dc
ground potential) - replace power
control PC board if signal is present.
6. Check for 24 Vdc solenoid coil voltage
at P5-1 - replace power control PC
board if no voltage present.
7. Check P8 and P5 for continuity or loose
plugs - repair or replace cable.
8. Check override switches for continuity
- replace override switch board.
9. Check P9/P10 cable for continuity or
loose plugs or pins - repair/replace
cable, replace override control board.
Table 5-1. Troubleshooting Guide (Cont’d)
Situation Cause Service Instructions