2.21 OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES - Continued.
Table 2-1. Operator Preventive Maintenance Checks and Services for CBPS - Continued
B - BEFORE D - DURING A - AFTER H - HOURLY
Not Fully Mission
BEFORE operational checks pertain to ECV, LMS, ABS and 10 kW TQG.
Items 62 through 131 pertain to operation of CBPS and should be performed before the
mission. Refer to Figure 2-1, sheets 8 through 12.
Install ECU work platform per para 3.12.1 to check ECU.
To prevent damage to hydraulic pump, EPG switch must be set to OFF before setting ESS
MODE switch to OFF or any mode position.
Start ECV per TM 9-2320-387-10. Engage EPG system and perform operational procedures
according to para 2.24. Deploy ABS according to para 188.8.131.52. Check operation of air beam
controls and indicators. Allow equipment to operate for a minimum of ten minutes. While
system is operating, check items 62 through 69, sheet 9.
62, sheet 8
Open doors on ECU and check Damaged hydraulic
for damaged hydraulic
components. Class III
components and leaks.
leak, refer to para 2.20.
Do not mix or substitute any other hydraulic fluid with MIL-H-5606.
Hydraulic fluid level Check sight gage for fluid
No fluid in sight glass.
level between hot and cold
fill marks. Add fluid per
Open door and check level of
Oil level below `MIN' in
oil in sight glass.
glass (COOL mode)
Wet/dry sight glass Check center of sight glass
Sight glass fluid
indicator. Colored stud should
changed color to pink.
be blue in color (dry). Check
Bubbles/streaks in R22
for bubbles/streaks in fluid
flowing through sight glass,
indicating low R22 refrigerant.