TM-9-2320-361-10
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
OPERATOR'S MANUAL
DECEMBER 1988
TM-9-2320-361-10 - Page 232 of 392
TM 9-2320-361-10
2-32. OPERATION OF EARTH BORING AND POLESETTING
MAINTENANCE TRUCKS (Contd)
(6)
When auger (3) point enters ground, push feed control lever (1) forward
(position 4, table 2-4) to start boring at 25 rpm (1800 engine rpm). Maintain
boring speed until hole is about 18 inches deep.
(7)
If auger (3) is working smoothly, set auger speed for type of soil (refer to
table 2-5).
(8)
When auger (3) is loaded, place feed (1) and drive (2) control levers in
neutral, then pull drive control lever (2) back and push feed control lever (1)
forward (position 5, table 2-4) to raise auger above ground.
CAUTION
Ž Clean rack teeth with wire brush as necessary when boring
to prevent dirt from getting into and damaging thrust plate
and rack carriers. Keep leveling worms and gears free from
sand and dirt to prevent damage to gears.
Ž Take less load on auger when boring in sandy clay, or wet
soil. Too much suction will make load too heavy and may
damage equipment.
(9)
Move drive control lever (2) in and out of neutral (position 6, table 2-4) to
spin soil from auger (3). Do not press down bumper spring.
(10)
Place control levers (1) and (2) as necessary for drilling (refer to tables 2-4
and 2-5).
(11)
If auger (3) becomes overloaded:
(a)
Depress clutch pedal (5).
(b)
Place transmission gearshift lever (4) in “R” (reverse) position.
(c)
Release clutch pedal (5).
(d)
Pull feed control lever (1) back and push drive control lever (2) forward
(position 2, table 2-4). Auger (3) will back out of hole.
2-171
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