M274 Tech Manuals for download in PDF format

TM 9-2320-246-10 Operators Manual
TM 9-2320-246-20 Organizational Maintenance
TM 9-2320-246-20P Organizational Maintenance Repair Parts
TM 9-2320-246-34 Depot Maintenance
TM 9-2320-246-34P Depot Parts and Tools
LO 9-2320-246-12 Lubrication Order - courtesy of Chuck W.

TM 5-2805-213-14 A042 Maintenance
TM 5-2805-213-24P A042 Repair Parts and Tools