TM-5-2350-262-10
ARMORED COMBAT EARTHMOVER (ACE), M9
OPERATOR'S MANUAL
TM-5-2350-262-10 - Page 124 of 302
TM 5-2350-262-10
Change 5
2-71
2
DOZER OPERATIONS - CONTINUED
ROUGH GRADING
1
Start engine (p 2-37) and allow it to warm up
for 3 to 5 minutes; then drive vehicle to
operation.
2
Place SPRUNG/UNSPRUNG control lever (1)
in UNSPRUNG position.
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CAUTION
UTION
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If ripper blade is installed, do not
rough grade through solid rock,
concrete, or asphalt or extensive
damage to scarifier teeth and dozer
blade will result.
3
Operate vehicle as scraper (p 2-65) to load
ballast.
Note
In some terrain or soil conditions, vehicle
may dig unevenly or not maintain cuts
with ripper blade installed.
4
Operate vehicle as dozer (p 2-66) and lower
suspension to obtain desired depth of cut as
vehicle moves forward.
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CAUTION
UTION
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Track can be thrown if vehicle is
backed in UNSPRUNG mode.
Do not
make any sharp turns when backing
unless suspension is in SPRUNG
mode.
Failure to comply may result
in damage to equipment.
Note
•
Controls are in same positions for
rough grading, or back-blading, as
they are for straight dozing.
Back-
blading is done in R1 or R2.
•
Warning buzzer will sound when
backing vehicle in UNSPRUNG
mode.
5
To back-blade at end of pass, move
transmission shift lever (2) to R1 or R2.
Coordinate suspension control levers (3) to
keep dozer blade dragging on ground over
areas just dozed.
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