Section 8 − Maintenance; Maintenance Label - Miller Big Blue 302D Owner's Manual

SECTION 8 − MAINTENANCE

8-1. Maintenance Label

Have only trained technician maintain injection pump and injectors.
AIR, WATER, or GASOLINE will harm the injection system. If engine
has run out of fuel or fuel filter is changed, bleeding of air may be
required. Injectors should be checked annually.
Check engine manual for proper procedure.
OM-497 Page 31