Echo 74500 Owners Manual v.2 - Manual (Page 18)

Page 12 Skid Steer Chipper Operator’s Manual
INSTALLING THE FLUSH FACE COUPLERS
Operation
Fig. #15, Installed couplers
The Bear Cat Skid Steer Chipper is
equipped to attach to flush face cou-
plers (See Fig. #11). The chipper is
shipped with 12 sized hydraulic cou-
plers fitted on the hoses. A tie wrap is
used to indicate the pressure line. Be
sure to connect the hydraulic hoses
to the proper ports.
If the skid steer is fitted with anything
other than 12 sized flush face couplers,
on the main lines, it will be necessary
to replace the couplers supplied with
the chipper.
The chippers are also equipped with a
case drain hose. The case drain is used
to eliminate pressure on the chipper’s
hydraulic motor. The motor is rated for
250 to 300 psi of back pressure.
Most high flow skid steer loaders are
equipped with case drain line. Stan-
dard flow skid steer loaders typically
are not. If the back pressure tandard
flow skid steer is over 300 psi, a
case drain line will have to be
added. Contact your skid steer
dealer for details. Not adding a
case drain line voids chipper war-
ranty.
If the back pressure is below 300 psi
the case drain line can be left idle or
removed.
To connect:
1. Before connecting make sure to re-
lieve the hydraulic pressure in the skid
steer, using the skid steer system to
relieve pressure.
2. Remove dirt and debris from the sur-
face of the couplers.
3. Visually check for the couplers for
damage, replace if damage is found.
4. Install the male coupler into the fe-
male coupler. Full connection is made
when the ball release sleeve slides for-
ward on the female coupler.
5. Turn the sleeve so that it is rotated
away from the locking pin to prevent
accidental disconnection.
6. Repeat procedure for all hoses, in-
cluding the smaller case drain hose.
To disconnect:
1. Relieve hydraulic pressure.
2. Rotate ball sleeve so that the grooves
are aligned with the pins in the female
coupler.
3. Retract the sleeve on the female
coupler until the couplers disconnect.
4. Repeat the procedure for all hoses.
WARNING
Hydraulic lines may be under pres-
sure due to testing done at the fac-
tory.