TM 5-2410-241-23-1
0011
IMPLEMENT AND STEERING HYDRAULIC SYSTEM CONTINUED
Bulldozer Tilt Control Valve (Tilt Left)
00011
When pilot control pressure causes the control valve spool to move to the TILT LEFT position, passage is opened
to the rod end passage. Cylinder oil from the rod end passage flows through the passage to the signal oil chamber.
The oil functions as signal oil. Part of the signal oil flows to the spring chamber #1 behind flow control valve. The
rest of the signal oil flows through the resolver to the inlet manifold and to the compensator valve in order to
upstroke the pump.
The increase of pump oil flow to the inlet passage flows through metering slots into chamber #2. The pump oil
opens and flows through the load check valve. The oil then flows through passage around the control valve spool
and out the rod end passage to the head end of the tilt cylinder. The tilt cylinder then tilts the bulldozer blade to the
left.
Return oil from the rod end of the tilt cylinder flows through head end passage, around the control valve spool, and
through outlet passage to the oil tank.
a. Tilt Right
00011
The operation of the tilt control valve in the TILT RIGHT position is similar to the operation of the tilt control valve in
the TILT LEFT position.
When pilot control pressure causes the control valve spool to move to the TILT RIGHT position, passage is opened
to passage. Cylinder oil from passage flows through the passage to the chamber. The oil functions as signal oil.
Part of the signal oil flows to spring chamber #1 behind the flow control valve. The rest of the signal oil flows
through the resolver to the inlet manifold and to the compensator valve in order to upstroke the pump.
The increase of pump oil flow to inlet passage flows through the metering slots into chamber #2. The pump oil
opens and flows through load check valve. The oil then flows through the passage around the control valve spool
and out the passage to the rod end of the tilt cylinder. The tilt cylinder then tilts the bulldozer blade to the right.
Return oil from the head end of the tilt cylinder flows through the passage, around the control valve spool, and
through the outlet passage to the oil tank.
0011-36
