2-13. OPERATION OF AUXILIARY EQUIPMENT.
To avoid injury to personnel or damage to equipment, read each set of instructions
completely before operating equipment.
Communication Equipment. The communication equipment installed in the M88A1 is for internal and external
communications. This section describes the equipment and gives basic operating instructions.
Turn radios OFF before starting main engine or APU.
AN/VIC-1(V) intercommunication set. This equipment provides communications between crew members
during operations. It consists of AM 1780/VRC amplifier and C-2298/VRC control box (one for each crew
BEFORE operating intercom or radio, ALWAYS:
Set AM 1780/VRC amplifier switches (1 thru 5) as shown in illustration below.
Set vehicle MASTER switch to on.
Set MX-7778A/GRC suppressor to ON.
Set MAIN PWR switch (1) to NORM.
Set POWER CKT BKR (4) to ON. POWER lamp (6) should light. If POWER CKT BKR trips to OFF,
reset to ON.