Open the cover, disconnect power first, replace the mainboard, restore its connections and reassemble with illustrated steps.
Power off, remove the security key and wear protective gloves before starting.
Before you start
Preparation
For LUBA 2 AWD hardware matching the source photographs. Compare the actual board or battery and connectors before selecting a replacement.
Keep the mower OFF with its security key removed throughout disassembly and mechanical reassembly. Restore power only at the indicated connection step.
Keep the cutting-plate, bracket, front, underside, waterproof and board fastener groups separate. Preserve the waterproof washers and cover strip.
Tools & supplies
H2, H2.5 and H3 drivers as specified at each step
Hand driver for cutting discs; no powered screwdriver
Soft support, protective gloves and separate hardware trays
A camera or notes for recording cable positions
Source & repair notes
The lower power board is called “Drive Board” in the SOP. It is separate from the upper mainboard.
The walkthrough follows the SOP’s process labels, not the PDF page order. Accessible and remaining lower-board cable groups are staged for access; the source does not individually label every socket.
Reassembly uses the SOP’s installation and closure instructions where supplied. Steps marked as reverse operations reuse the documented removal positions and hardware. A detailed connector installation map and board commissioning procedure are not supplied.
Source page references use physical PDF pages, starting with the cover as page 1.
Step 1 of 310 of 31 checked
PreparationStep 1 of 31
Power off, remove the key and prepare the work area
Move the mower off its charging station, switch it OFF and remove the security key before inspection or maintenance. Wait for moving parts to stop.
Use a clean, dry work area. Wear protective gloves around the blades. Prepare a soft support that protects the housing and vision module when the mower is turned over.
Photograph cable routing before disconnecting anything. Keep each screw group separate for reassembly.
Safety preparation: LUBA 2 owner manual, physical PDF pages 6, 8, 81 and 84. The SOP itself starts at the individual repair operations.
Next stepInspect the mower and confirm the replacement