37 Pa. Code § 200.105 – Detention pending a dispositional review proceeding for violation of probation. (See Pa.R.J.C.P. 605, 610 and 612)

(a) Within 72 hours of the admission of a juvenile to secure detention for a violation of probation, an informal detention hearing shall be held.
(b) Within 10 days of the informal detention hearing, a hearing on the motion to modify or revoke probation shall be held.
(c) Unless a new dispositional order is entered, a hearing to determine the need for continued secure detention shall be held within 20 days of the hearing on the motion to modify or revoke probation.
(d) Until a new dispositional order is entered, the court shall hold a hearing by the 20th day from the most recent court proceeding to review the status of the case and to determine the need for continued secure detention.