TM 5-2420-232-10
0049
SNOW PLOW CONTROLS CONTINUED
Angling Plow
00049
The snow plow can be angled up to 37 degrees and is protected by an internal cross-over relief valve, or cushion valve. If the
circuit s internal hydraulic pressure, caused by external forces, rises above 1,800 psi, the valve will relieve oil in the angling
system. This will cause movement of the moldboard that the operator cannot overcome until the external source of excess
pressure is decreased. Reset of the cushion valve is automatic.
CAUTION
If notable damage occurs to the snow plow or plowed surface, notify Field Maintenance to adjust
the trip.
Operating Plow
00049
The snow plow has been designed to operate safely under varying surface conditions. However, when the plow encounters
material or an obstacle that it cannot move, the plow s cutting edge will trip backward until the plow can pass over the obsta-
cle. Once cleared, the cutting edge will snap back into the normal plowing position automatically. If at any time it is observed
the cutting edge is folded back during operation, the plow is being operated beyond normal operational limits. The most com-
mon correction for this condition is for the operator to slow down until the cutting edge resets. When operating the snow plow
always remember:
Do not ram into piles or windrows of snow.
Start slowly and work plowing up to speed.
Never back-drag with a snow plow.
END OF WORK PACKAGE
0049-5/(6 Blank)
