TM 9-2320-279-10-1
Table 2-5. Preventive Maintenance Checks and Services Model M984E1
Location
Item Interval
No.
Item to
Crewmember
Not Fully Mission
Check/
Procedure
Capable If:
Service
DRlVER
135 Weekly Boom
Control
Levers
Continued
a. Boom Control Lever.
Move BOOM control lever to
UP position until hook is 5 to
6 feet (1.5 to 1.8 m) above left
rear fender and boom is
approximately 45° above
horizontal.
b. Mast Control Lever.
Move MAST control lever to
UP position until the mast is
fully erect and the cylinders
are fully extended. Use
BOOM control lever UP si-
multaneously as required to
maintain the boom at approx-
imately 45° above horizontal
until the mast is fully erect.
Hold the mast control lever to
up position for 2-3 seconds
after mast is fully erect to en-
sure cylinders are fully filled
with oil.
a. Boom does not
raise.
b. Mast cylinder does
not raise completely
before stopping.
Change 5
2-131
