Service Manual User Manual

Section 9
9-40
Locked Mode
(Fig. 9– 27)
• Rod Oil OUT
Conditions: Boom angle is above 40°, park brake ON, or
service brake applied, or travel select lever in neutral.
In the locked mode, oil is prevented from flowing through
the stabilizer valve block because of check valves that
stop the flow of oil.
• Base Oil OUT
Conditions: Boom angle is above 40°, park brake ON, or
service brake applied, or travel select lever in
NEUTRAL (N).
In the locked mode, oil is prevented from flowing through
the stabilizer valve block because of check valves that
stop the flow of oil.
• Frame TILT RIGHT
Oil flows from the spool and is shifted by pilot pressure in
the frame tilt section of the main control valve to Stabil-
TRAK manifold port V, through solenoid cartridge #5,
through a 0.030" orifice, to the base end of the stabilizer
cylinder. Rod end oil from the stabilizer cylinder flows
through a check valve opened by pilot pressure in the
stabilizer manifold. Solenoid #5 is energized, allowing oil
to flow through its cartridge valve and to the rod end of
the frame tilt cylinder. Oil from the base end of the frame
tilt cylinder flows through a piloted-open check valve and
back through the frame tilt section of the main control
valve, dumping to the reservoir.
• Frame TILT LEFT
Oil flows to the base end of the frame-tilt cylinder. Oil
from the rod-end of the frame-tilt cylinder flows through a
check valve (which was unseated by pilot pressure), then
flows to port FTR on the stabilizer valve block. From
there, oil flows through solenoid valve #5, through a pas-
sage in the stabilizer valve block, then unseats another
check valve, and goes to the rod end of the stabilizer cyl-
inder. Oil from the base end of the stabilizer cylinder
flows through a check valve (which was unseated by pilot
pressure), through a 0.030" orifice, through solenoid
valve #5, to the frame tilt section of the main control
valve.
Model 3606 • Origin 10/99