Rest and Repairs
Mechs carry a number of Repairs (their Repair Cap). In combat, Stabilize spends 1 to restore full HP. A rest (≈1 hour of quiet) clears heat and conditions and lets you spend Repairs: 1 = full HP or fix a weapon/system, 2 = restore 1 Structure or Stress, 4 = fix a destroyed mech.
Stats · Core p.82 · See also: Full Repair, Stabilize