Monthly Maintenance Checklist

Cabinet ID:

Technician:

Date:

FIRE AND ELECTRICAL HAZARD

• Do not use a pressure washer to clean the cabinet. High-pressure water can breach enclosure seals, damage internal components, and obstruct the TMS ventilation system, increasing the potential for a thermal event.

• Instead, use a soft cloth and mild, non-corrosive cleaner, carefully avoiding all vents, fan intakes, and cable ports.

Failure to follow these instructions may result in injury.

Check for pooling water and water damage (water stains, mold)

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Check for intrusion of pests (animal feces, chewed wires)

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Check if chemicals are stored nearby

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Remove obstructions in the vicinity of the battery

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Clean exterior surfaces. Use a soft cloth and approved cleaner to remove dust, residue, and dirt.

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Inspect painted surfaces. Look for rust, paint chips, or mechanical damage.

• Apply touch-up paint or rust inhibitor

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Inspect gasket and seal integrity. Check door and panel gaskets for cracking, gaps, or hardening.

• Confirm the Waterproof Sealing Rubber at the door is intact and is not peeling.

Rubber Waterproof Seal

• Gasket Replacement

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Confirm there is no water in the bottom groove of the door.

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Battery pack fasteners and retention brackets are tight.

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Confirm door rods and other components are assembled tightly and fit well.

• Confirm all doors open and close smoothly. If not, adjust the nuts accordingly.

• The maintenance door is equipped with locks and keys.

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Check the grounding point, make sure the screws of the grounding point are not loosened, rusted or sheared off. The resistance between grounding points should be less than 1 Ω.

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Confirm all external connections and protective covers in the cabinet are closed.

External Connection Points and Protective Covers Should be as Shown

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Using a torque wrench, check that the fasteners on the liquid cooler, high voltage box, battery box, and battery rack brackets are firmly installed and at the correct torque.

• The battery pack is affixed with M10 x 20 mm combination screws, with a locking torque of 35 to 45 N·m (25.8 to 33 ft-lb).

  • The connection plate and the cabinet are affixed with M8 x 20 mm screws, with a locking torque of 16 to 25 N·m (11.8 to 18.4 ft-lb).

Battery Pack Retention Brackets

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Ventilation pathway check. Confirm passive deflagration vents and airflow inlets/outlets are unobstructed.

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Log into LYNK Access or LYNK Cloud to verify SOC, temperature, and fault status.

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Review the status and history of alarms. Pay attention to alarms that may signal failing parts on the battery, such as component-related alarms and over and under temperature warnings.

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Review full charge cycles.

Confirm the battery is getting charged to 100% SOC at least once a week to promote balanced battery cells.

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Record operating parameters and review system logs.

• The following is unnecessary if you are using LYNK CLOUD:
  Log the SOC, cabinet voltage, and temperature and watch for operating trends.

• Consult with a Discover Technical Support representative if values deviate from expected norms.

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Ensure the dehumidifier unit is securely mounted and unobstructed.

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Inspect the exterior of the dehumidifier for damage or corrosion.

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Check for signs of moisture or condensation inside the cabinet.

Check for water ingress, corrosion, or physical damage.

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Inspect wiring and connectors for loose or damaged components.

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