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Maintenance H25-IR
46 Instruction 3015-4342
5.4 Part Replacement
WARNING! Shock Hazard. Before performing any service work, remove the AC
power cord to prevent electrical shock.
Part replacement is limited to replacing filters, O-rings, and fuses. It is recommended that all other parts
be replaced by an authorized Bacharach Service Center (refer to Section
6.2 Service Centers).
5.4.1 Removing the Top Cover
When servicing the parts inside the instrument, the instrument’s top cover is removed as follows:
Items Required:
• Medium Phillips head screwdriver
Procedure:
1. Remove both the front and rear bezels by first disengaging the plastic tabs on the right and left
sides of the bezel, and then pulling the bezel straight out.
2. Remove the two top screws that secure the front panel.
3. Remove the four screws that secure the rear panel.
4. Remove the Relay, RS-485, and 4–20mA connectors from the rear panel. DO NOT remove any
connector on the interior side of the rear panel.
5. Drop down the rear panel far enough to allow the top cover to clear, being careful not to stress the
cables attached to the inside of the panel.
6. Remove top cover by sliding it toward rear of instrument.