Heavy Transport; Low Wing; 4 Turbojet Eng
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 186; Flight Crew Total 7750; Flight Crew Type 461
Time Pressure
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem; Flight Crew Returned To Gate; General Maintenance Action
Human Factors
Not realizing we were planning dangerous goods I requested pushback and in fact began the pushback without the final manifest.
Air carrier Captain reported gate departure without required Hazmat documents.