Section 1
1 - 19
Sequence of Operation - LINE-OUT, K371 and L39
LINE-OUT
operation is similar to
LINE-IN
except moving
the control lever away from the operator reverses fl ow
at the tractor ripper valve and directs fl ow through the
counterbalance relief manifold to the motor “B” port and to
the RO port on the control manifold, and returns through
“A” port. Brake release operates the same as
LINE-IN
mode.
In
LINE-OUT
operation, oil fl owing from motor port “A”
to the counterbalance relief manifold is controlled by the
counterbalance valve. The counterbalance valve maintains
suffi cient pressure in the motor outlet (A) line to prevent
uncontrolled lowering of a load.
If the operator selects
HI-SPEED
mode by the rocker
switch on the control panel, an electric solenoid valve on
the control manifold sends pilot pressure to the C port
on the motor. The spool shifts to close half of the power
cavities in the motor. Full pump fl ow now fl ows through the
motor at half displacement, thus doubling the output rpm.
HI-SPEED must be disabled during LINE-OUT
if there is a load attached to the wire rope.
Summary of Contents for H5C Series
Page 8: ...vi Notes...
Page 48: ...General 1 40 Notes...
Page 59: ...Troubleshooting 2 6 Notes...
Page 77: ...Service 3 18 Notes...
Page 86: ...Section 4 4 9 Intentionally Blank...
Page 104: ...Section 4 4 27 Intentionally Blank...
Page 108: ......
