Mechanics - Repair An Item

In time, weapons and other pieces of equipment wear out. The The Crafting Process rules on page 89 of the Genesys Core Rulebook cover the basics on how equipment gets broken but do not offer many possibilities on how symbols can be spent when repairing an item.
Depending on the item's complexity, repairs should take between one and two hours per difficulty level.
The difficulty is based on how severely damaged is the item the character is repairing.
Acquiring Spare Parts
To attempt repairs, you generally need spare parts. While a toolkit will contains a few bolts, resistors and such, vehicles, weapons, and other pieces of gear might requires specific parts in order to be repaired, as per the GM's choice.
These parts must be acquired prior to doing repairs and are obtained the same way the character would purchase anything else. The price of the parts depends on what you want to repair and how badly damaged it is.
Page 89 of the Genesys Core Rulebook gives prices for repairing items while page 222 says it costs 100 per Hull Trauma you want repair on vehicles. This suggests you have some personnel hired to repair the ship. When repairing a vehicle by yourself, it seems reasonable to cut this price in half, therefore requiring spare parts for a value of only 50 per Hull Trauma you want to repair.
When looking for parts to buy, use the item’s rarity to determine the rarity of the parts. So if you want to buy parts for a crossbow, these parts would have a rarity of 6, as the item itself has a rarity of that level.
When performing repairs, the amount, and thus price, of parts may vary as per the generated symbols. If the price increases due to h or d, it is recommended to not have the character having to go through bartering scene for parts again, unless circumstances would explain why parts wouldn't be available anymore — like if the character moved away since they bought the parts. Just let the player spend the additional money to complete the repairs.
EXAMPLE #1 OF A REPAIR AN ITEM CHECK
Thadius is the blacksmith in the village of Tribute. During a recent skirmish with bandits, a battle took place and one of the villagers had their weapon suffer minor damage.
While the weapon is still usable, they turned to Thad to have it repaired. With the bandits pushed back across the river Thadius has time to repair his neighbor's weapon.
The weapon is a a crossbow with an igniter attachment. For the sake of this example, it has a value of 900 and a rarity of 7. Since the weapon only suffered minor damage, Thadius will need to buy 225 silver' worth of crossbow parts. The difficulty in this case will be Easy (d ). The check generates ssht. The GM spends the h to have the repairs be 10% more expensive than anticipated. Thadius had to go back shopping for the additional 25 silver worth of crossbow parts. While Thadius' player could have reduced the cost of the parts needed by 30% with the generated t, money is not really an issue for him right now so he decides to spend it to increase the crossbow’s Burn item quality from 1 to 2 for the next scene in which the weapon is used, since he knows that his friend loves it when they can trigger Burn on a combat check.
EXAMPLE #2 OF A REPAIR AN ITEM CHECK
Sophitia and her friends are traveling the wilderness of Kaldaria in search of a shelter and provisions because their village was destroyed by raiders a few days ago.
They have been travelling since but their rations cannot last much longer. They are now approaching a small settlement. Unfortunately, the inhabitants are not rich in resources either and Sophitia and her party do not have much to barter. They notice though that the settlement has a water pump but one of the settlers tells them it broke weeks ago, forcing them to get water from a river about an hour away.
Sophitia is a skilled mechanic and takes a look at the pump, hoping that if she fixes it, the settlers will house them for the night and share food. The pump is rusted and is considered to be suffering moderate damage, requiring an Average (dd) Mechanics check to fix. Sophitia does not have parts for this kind of equipment but can use scrap metal to fix it, at the cost of adding bb to the check.
The check generates faaa. Since the check failed, the water pump is not repaired. Sophitia's player spends one a to have her remember that the day before, when she passed through a scrapyard, there was a similar water pump from which she could salvage parts. The other aa are spent so that the villagers notice how much she wants to help them and decide to offer shelter and food for this day, but won't share more unless Sophitia fixes their water pump.