E3D V5 hotend.....need up of software

I installed the new hotend and I need help on what to do next. I do have the auto_level_6_10 firmware.
I don't know where to put in the heater max update.
thanks

 

Code:

// When temperature exceeds max temp, your heater will be switched off.
// This feature exists to protect your hotend from overheating accidentally, but *NOT* from thermistor short/failure!
// You should use MINTEMP for thermistor short/failure protection.
#define HEATER_0_MAXTEMP 240    //robo
#define HEATER_1_MAXTEMP 275
#define HEATER_2_MAXTEMP 275
#define BED_MAXTEMP 115

Change 240 to 290 or something

 

thank you mark.