Ohaus Explorer Balances EX1103

Ensure ESD protection is in place

Use a conductive mat with wrist straps

Remove the accessory module, if equipped

Remove the speaker by removing the 2 screws and lifting it out

Use a broad blade to remove the label from a corner

Ensure not to cut into the plastic Housing or yourself

Wear eye protection while using a knife

Clean the glue residue from the Housing surface

Use a section of the adhesive on the removed label to pick up remaining adhesive

Use knife or fingers to roll up remaining adhesive

Use a cotton cloth if adhesive smears

Test solvent on inside of Housing to check for plastic damage

Ensure all necessary tools and parts are available

Review the sketch for assembly order and plate orientation

Check the components of the bearing assembly

Ensure the curved surface of the disks face the ball bearings

Is the load bearing plate oriented correctly with the curve facing inward and towards the front?

Open the balance – see Section 3.2. Verify that there is no mechanical interference, pinched wire or bad solder connection that may be causing the load cell to appear defective.

Remove the Load-cell Shield by lifting vertically. Note the Top Loader models do not have a Load-cell Shield.

Disconnect the two Load Cell connections at the Main PCB.

Remove the Load Cell – remove the 4 load cell screws from the bottom housing. Lift the Load Cell Module from the Base. Do not lift by the Pan Support Cone or the cables.

Reverse the disassembly procedure to assemble the balance.

Ensure that there is no foreign material between the Base mounting surfaces and the Load cell.

Take special care to route the wires and cables as shown in the following pictures. Proper routing is important for RFI/ESD performance.

Clean the outside of the balance with a damp cloth and warm water

Check the Power Cord for broken or damaged insulation

Inspect for faulty connectors, wiring, and loose hardware

Note any issues found during inspection