PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING
LUBRICATION INSTRUCTIONS Continued
ITEM TO BE
Refer to TM 3-6680-316-10 for use of the
a. Slide spring clip away from slotted openings of
precleaner (blower) assembly and set VEHICLE
BAT switch and VFM POWER switch to ON
(blower must function).
b. Remove calibrated orifice assembly from
airflow tester (6650-00-436-4212) and zero
c. Disconnect crew member nose (for station being
tested) from container in vehicle and attach
connector to calibrated orifice assembly
connector of airflow tester.
An acceptable gauge reading is between
2.6 and 4.3 inches of water.
d. If reading is not within limits, note reading. See
e. Connect crew member hose to vehicle
connection. Set VEHICLE BAT switch and
VHF POWER switch to OFF and recover slotted
holes in precleaner (blower) assembly with
Refer repair of particulate filter to direct
maintenance personnel per
TM 3-4240-276-30 and