17
RLO (Rebound Lock Out)
The lower knob allows adjusting the rebound. The black-coloured top
knob sets the lockout, thus assuring a pleasant riding on all terrain .
In some models, lockout can be operated through the remote control
on the handlebar.
LO (Lock Out)
The black-coloured top knob sets the lockout, thus assuring a pleasant
riding on all terrain . In some models, lockout can be operated through
the remote control on the handlebar.
RC3 (3rd Generation Rebound/Compression Cartridge - Open Bath)
It is the leading-edge Open Bath technology by Marzocchi. The RC3
damping system ensures the maximum freedom of adjustment for a free
and performing way of riding. The rebound control can be adjusted by
means of the red-coloured knob on the fork top. The system allows the
control of the compression adjustment golden knob, which is installed in
the lower part of the fork leg.
RC3 EVO
It is the most advanced Marzocchi Open Bath System. RC3 EVO
cartridge allows to have the maximum freedom in the setting. In addition
to the external rebound adjuster (red knob on top) and the low speed
compression ( golden knob on the bottom), it is the possibile to install
different shim stacks in order to get a customized compression setting.
RV (Rebound Valve - Open Bath)
The RV (Rebound Valve) pumping element is the evolution of the well-
proven SSVF Open Bath system. The system controls the rebound
speed. If you correctly adjust the red-coloured knob on the lower part
of the fork leg, you can keep the wheel on contact with the soil in all
riding conditions.
IRA (Internal Rebound Adjuster - open bath)
The IRA (Internal Rebound Adjust) system, which is similar to the RV
system, controls the rebound speed and keeps the wheel on contact with
the soil in all riding conditions. The Adjuster is installed inside the cartridge
and the rebound can be set using the speci
fi
c adjustment wrench.
R (Rebound Cartridge)
The R cartridge is the Entry Level cartridge to adjust rebound through
the black-coloured knob on the fork top.
R Damper
The R Damper system to adjust rebound through the red-coloured knob
on the fork bottom.
Fixed Damping
The Fixed Damping cartridge allows the hydraulic control of the rebound
and is set by Marzocchi.
CV (Compression Valve - open bath)
The CV pumping element is the evolution of the well-proven SSVF Open
Bath systems. The system controls the compression. The golden knob
installed in the lower part of the fork leg adjusts the compression.
VA (Volume Adjuster - open bath)
By means of the VA adjuster, every rider can adjust the air volume inside
the fork by simply turning the VA knob. The variation of the volume inside
the fork is the same as a virtual modi
fi
cation of oil levels. By simply
rotating the chrome-coloured adjuster you can modify the air volume,
thus achieving a different progressivity equivalent to a variation in the
internal oil volume.
2.3 Lubrication and cooling
The forks can use different lubrication and cooling technologies.
In Open Bath systems, the oil inside the fork leg, besides being a
crucial element for the hydraulic operation, accomplishes all cooling
and lubrication needs for the internal sliding parts. In addition, if
the oil volume is varied within the recommended ranges, it will
be an additional setting element, thus allowing the modi
fi
cation
of suspension system progressivity. Compared to the systems
equipped with sealed cartridges, the Open Bath system allows
reducing lubrication operations of the sliding parts.
The Open Bath system assures an excellent lubrication even from the
fi
rst
“bottoming” of the fork, as well as in all use and weather conditions.
In the systems equipped with sealed cartridge, special grease or oil
is used for the lubrication of the internal sliding parts. The aforesaid
lubricant does not work as additional setting element; therefore, the
pre-established levels must be carefully observed.
The best lubrication of the internal parts is achieved during the use,
when the stress and the bottoming of the fork allow that the oil lifts
due to “chattering” from the bottom of the fork leg until reaching and
lubricating the bushings.
2.4 Sliding bushing and oil seals
The guide of the stanchion tubes inside the sliders is formed by two
bushings with Te
fl
on® facing, with very low static friction.
In 44,55,66,888, Corsa, Marathon and 4X models the notorious
smoothness of Bomber models has been overcome thanks to the
use of newly designed bushings and seals offering a coef
fi
cient of
friction that is 30% lower, as well as constant performances in time.
This allows the optimum combination between the fork legs and the
sliders. The new bushings have slots that help the oil to go up and
improve the lubrication, thus offering an incomparable smoothness.
At the top end of the monolite, there is a sealing group that prevents
oil leakages, as well as the access of contaminating agents into the
lubricant and into the hydraulic cartridges.
A special foam ring is installed in 44, 55, 66, 888, Corsa, Marathon
and 4X models and in the sealing group allowing a better
smoothness if periodically lubricated.
3. INSTALLATION
3.1 Installing on the frame
The fork is supplied with an “A-Head Set” steer tube to be cut
according to the frame size the fork is being installed on. Installing
the fork on the bicycle frame is a delicate and critical operation that
must be carried out by specialized personnel.
W
ARNING
!
Suspension system installation requires specialized
knowledge, tools and experience. General mechanical aptitude
may not be suf
fi
cient to properly install your suspension
system. Please have your suspension system installed only
by an authorized Marzocchi Suspension Center. Improper
installation can result in failure of your Marzocchi Suspension
System, an accident, personal injury, or death.
The interference of the cylinder on the base and the play between
the cylinder and frame are particularly critical factors for the safety of
the operator. For this reason, maintenance and installation must be
performed exclusively at authorised technical assistance centres,
which have suitable equipment and speci
fi
c knowledge.
W
ARNING
!
On all dual crown Marzocchi forks, the lower crown is clamped
to the stanchions using bolts. In this case, please be aware of
the following precautions during installation.
In case of oversized diameter areas on the stanchions, the crowns
clamping can only be done in the shaded area shown in
Picture 2A
.
In case of reference notches on the stanchions, the lower part of the
lower crown must be positioned above the MIN notch and maximum
7 mm above the reference.
The distance between the in
fl
ated tire and the lower part of the lower
crown, when the fork is at travel’s end, must be at least 4 mm.
On the dual crown forks the maximum length of the steer tube
between the two crowns (see
Picture 2B
) must be smaller than
the values (H) shown in
Table 1
.
