BOXER KING 5600 - Page 82

Service Manual 04/2010 Rev.B
82
THE LITTLE HOLE ON THE FLANGE MUST
MATCH WITH THE LITTLE ON THE CHUCK
CYLINDER, OTHERWISE THE CYLINDER WILL
OPEN BUT IT WILL NOT CLOSE ANYMORE
 Tighten two flange screws paying attention to
avoid the dropping of the shim.
 Check if the chuck turns free by hand: if not
the shim is dropped and it must be placed
correctly.
 Tighten the rest of the bolts very carefully by
using a dynamometric wrench regulated at
8Kgm (Fig.154).
Fig.154
 Mount the anti rotational bolts #2 (Fig.150):
the small plate #4 must be left free.
 Install the oil hoses
 Install the manometer.
 Switch the machine on and open the chuck
arms ‘till having the cylinder with maximum
pressure.
 Keep the chuck cylinder quite opened for 10’.
 After 10’ unlock the chuck cylinder pressure
unless close the arms and open it again ‘till
having maximum pressure again for further
10’.
 Perform the above operation three times
IMPORTANT!
DO NOT TAKE CARE OF THE PRESSURE
SHOWN BY THE MANOMETER AFTER THE 1
ST
AND THE 2
ND
CONTROLS.
 At the end of the third test the pressure shown
by the manometer should not be decreased
below than 140 Bar (2050PSI).
 Remove the manometer and install the bolts
with a new copper washer.
6.5.2 PISTON RELEASE LOCKING
VALVE “O” RING.
TO CONTROL AND REPLACE THE O RING:
 Remove the locking valve from chuck cylinder
flange following the point1.
 Remove the piston shown by the arrow in
picture 155.
Fig.155
 Check if the piston O ring is fine (Fig.156)
Fig.156
 Install the new O ring on the piston.
 Clean very carefully the flange to avoid that
pieces of “O” ring get in the hydraulic oil
circuit.
 Mount the piston into the flange.
 Mount the rest of the parts by following the
point 1.
 Check if the machine works fine.
6.5.3 REAR CYLINDER FLANGE
TO CHECK THE FLANGE:
 Remove the manifold revolving assy from
cylinder following ( 6.5.1).
 Remove the release piston from the flange (
6.5.2).

Verify if there excess of clearance between
piston and its side into the flange (Fig.157): if
there to much clearance the flange must be
replaced.