Troubleshooting; General - Hartridge CRi-PC Operating And Servicing Manual

CRi-PC Operating and Servicing Manual
5.4

Troubleshooting

WARNING:
ONLY QUALIFIED SERVICE PERSONNEL SHOULD ATTEMPT
5.4.1

General

The procedures given in this section assume that the test stand has been installed, prepared
and commissioned correctly to the information given in the Installation section of the manual.
The procedures also assume that the test stand has been powered up and operated correctly,
as detailed in the Operating section of the manual. If a failure is suspected or indicated,
repeat/recheck the appropriate instructions before attempting troubleshooting procedures.
If a fault is suspected and/or displayed, carry out the following procedure before attempting
further diagnosis:
1. Switch off power to the test stand and remove access covers.
2. Carry out a visual inspection, to ensure that there are no obvious signs of damage, for
example:
a. Loose, trapped or unterminated wires, connectors or pipework.
b. Air or fluid leaks.
c. Blown fuses.
CAUTION:
For the next check electrical power needs to be applied to the test
stand. Note the warning at the top of this section. Take all necessary
precautions to ensure the safety of personnel.
These include, but are not limited to:- erecting signs warning of the
electrical hazard; placing barriers/chains around the hazardous area;
ensuring that metal items (such as jewellery) are removed before
accessing the hazardous area.
d. Check the voltage supplies are satisfactory (check secondary voltages on the main
transformer are correct to within 10% as detailed in Table 5.1).
e. Check the dc voltage on the power supply at bottom left of the electrical cabinet (refer
to Figure 5.12). the voltage should be 24V dc on wire 850 with respect to wire 001.
3. Ensure power is switched off and repair any visible defects.
4. Replace access covers, switch the test stand on and recheck.
102
THIS IS AN UNCONTROLLED DOCUMENT downloaded by Lukas Matuska on 16 Feb 2016
Any technical intervention requires certified Hartridge training. Contact Hartridge Ltd for details.
DIAGNOSTICS WITH POWER APPLIED.
HARTRIDGE LIMITED
HL037 (EN), Issue 13, AT714, 05/14