instruct a probationer or a person on supervised release, who is under his supervision, as to the conditions specified by the sentencing court, and provide him with a written statement clearly setting forth all such conditions;

keep informed, to the degree required by the conditions specified by the sentencing court, as to the conduct and condition of a probationer or a person on supervised release, who is under his supervision, and report his conduct and condition to the sentencing court;

use all suitable methods, not inconsistent with the conditions specified by the court, to aid a probationer or a person on supervised release who is under his supervision, and to bring about improvements in his conduct and condition;