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 TM 5-2410-233-10
OPERATION UNDER USUAL CONDITIONS - CONTINUED
0005 00
OPERATE RIPPER
CAUTION
DO NOT turn or back tractor while shanks are in ground. Twisting puts strain on shanks and tips that may
cause failure. Inspect ripper tips frequently for damage.
NOTE
Rip downhill whenever possible.
1.
General Use.
a.
Operate transmission in 1st gear for most ripping operations. It is better to use additional shanks where practical,
rather than to increase speed.
b.
Always use center shank when ripping with one shank only. If material breaks up easily, more shanks may be added.
NOTE
It may be necessary to raise and lower ripper to keep tractor from stalling and to properly break up
material.
c.
Move tractor straight into material to be ripped and lower ripper gradually to desired depth as tractor moves forward.
d.
When ripping in preparation for scraper loading, rip in the same direction that scraper will load.
e.
Cross rip only when necessary.
f.
In most cases, it is preferable to rip as deeply as possible. Sometimes it is better to rip at partial depth and to remove
the material in its natural layers.
WARNING
Shanks are heavy. Assistance from Unit Maintenance is required to adjust ripper shank depth of
penetration. Suitable lifting device must be used to ensure adjustment is performed in a safe manner.
Failure to follow this warning may cause injury or death.
NOTE
Each shank weighs 328 lb (149 kg).
g.
Depth of penetration can be adjusted by removing cotter pin, retainer, and pin, and placing each shank in one of two
positions. Higher shank mounting position provides penetration of 15 in. (38.1 cm).
h.
Keep several inches of material on top of unripped formation to cushion machine and provide traction.
i.
When final material size must be relatively small, close spacing of passes is recommended.
Ripping Hard Materials.
2.
a. Solid Rock or Granite. Use one shank in tough-to-rip material (solid rock) or material that tends to break off in large
slabs or pieces (granite).
b.
Asphalt Road Surfaces. On asphalt, raise shanks to lift out and break material.
c.
Concrete Road Surfaces. On concrete, a single shank is effective in severing reinforcement rods or mesh.
d.
Packed Soil, Hard Pan, Clay, Shale or Cemented Gravel. Three shanks work well in these materials. Use as many
shanks as possible to break up material, without stalling or hanging up tractor.
0005 00-13
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