BOXER KING 5600 - King 5600 Saddle Cylinder Seals: Check and Replacement

Service Manual 04/2010 Rev.B
92
 Lock FIRMLY the support screw.
 Lock FIRMLY the nut #1 (Fig.186).
 Mount the cylinder protection 6.1 Fig.127.
 Turn on the machine.
 Open the saddle.
 Mount the hose plastic separators (Fig.184).
 Mount the oil hose protection 6.1 Fig.127.
 Check the hydraulic oil level 6.2.
6.11 KING 5600 SADDLE CYLINDER
SEALS: CHECK AND REPLACEMENT
 : 2h
 : End wrench 13, 19mm, 8mm Allen wrench,
socket wrench of 27mm, medium standard
screwdriver, pliers, calliper wrench, steel and
rubber hammer, hydraulic oil container.
L Defective seals may cause the following
malfunction:
1. Oil leaking from the piston rod.
2. Oil leaking from ring screw.
3. Low bead breaker power.
TO CHECK THE RING NUT “O” RING AND THE
PISTON ROD LIP SEAL:
 Switch the machine on.
 Close the saddle cylinder.
 When it is at the end of stroke, keep it under
pressure and verify if there is oil leaking from
the piston rod or from ring nut.
 Open the cylinder ‘till end of stroke and verify
that the piston rod would not show marks or
other kind of damaging.
TO CHECK THE PISTON SEAL:
 Defective seals may cause low bead breaker
power in one or both way.
 Switch the machine on.
 Close the saddle cylinder ‘till end of the
stroke.
 Press the coil valve by screwdriver to unload
the remaining pressure (5.13 Fig.93).
 Take the oil container and remove the hose
“A” (Fig.191).
Fig.191
 Take the portable control and press the
movements left of the saddle to have the hose
“B” (Fig.191) under pressure.
 If the side “A” will leak considerably oil, the
piston seal is defective.
 Some drops of oil leaking are considered
absolutely normal.
 Perform the same operation on the side “B”.
TO REPLACE THE “O” RINGS AND THE
SEALS:
IMPORTANT!
WHEN THE CYLINDER NEEDS TO BE OPENED
THE REPLACEMENT OF WHOLE SET OF
SEALS IS HARDLY SUGGESTED.
 Remove the cylinder from the machine 6.9.
 Lock the cylinder on a vice.
 Remove the ring nut (Fig.192).
Fig.192
 When the ring screw is completely off, unload
the oil into the oil container.
 Lock the piston head on the vice.
 Remove the nut (Fig.193).