J150 and J70 Main Controller Bracket Updates

Overview

• Updated the J-150 and J-70 front main controller bracket design to address breakage and heat/friction concerns.
• Added a new support beam and thickened the bracket body to improve structural rigidity and reduce brittleness.
• Integrated cooling holes into the bracket to help keep the lid cooler and reduce friction.
• Reinforced the lower mounting area with additional material/tail geometry to reduce failures around the bolt holes.
• Updated hardware requirements for the lower bolts:
  • Use an M4 x 12 flat washer and an M4 x 7 lock washer.
  • Install lock washer first, then flat washer.
  • Apply a small dab of blue Loctite.
  • Torque lower bolts to 3 N·m.
• Upper bolts do not require torqueing, but Loctite should still be applied to all six upper bolts.
• New washers/lock washers will be included with bracket purchases and made available on the website.

Assumptions

• The bracket update applies to both J-150 and J-70 front main controller brackets.
• The lower mounting bolts are the only fasteners requiring a defined torque spec in this change.
• The specified washer stack order is lock washer first, then flat washer.
• Blue Loctite is intended for all bracket fasteners, including the six upper bolts.
• Existing inventory may need updated installation guidance or packaging to reflect the new hardware and torque spec.

Testing Strategy

• Verify the updated bracket geometry matches the intended design changes:
• support beam added
• bracket thickness increased
• cooling holes present
• lower mounting area reinforced
• Confirm fitment on both J-150 and J-70 assemblies.
• Validate lower bolt installation with the new washer stack-up and torque spec of 3 N·m.
• Check that upper bolts can be installed with Loctite without requiring torqueing.
• Perform a basic durability/fit check to ensure the reinforced lower holes reduce cracking or bolt-related failures.
• Confirm included hardware in packaging matches the new installation requirements.