Marzocchi 320 LCR Manual De Instrucciones página 19

The RV (Rebound Valve) pumping element is the evolution of the well-proven SSVF
Open Bath system. This 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.
By means of a single Schrader air valve in the upper or lower part of the fork leg,
depending on the model, the AER pneumatic cartridge allows a perfect and simple
adjustment of the pressure in the positive air chamber.
Coil preload with mechanical adjuster
Coil preload with air
Table 2 - Technology and Adjustment - Detail
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 modifi cation
of suspension system's progressivity. Compared to the systems
equipped with sealed cartridges, the Open Bath system allows
increased lubrication for the operation of the sliding parts.
The Open Bath system assures an excellent lubrication from the very 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 use,
when the stress and the bottoming of the fork allow the oil to lift
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 utilizing an advanced Tefl on® facing, with very low
static friction.
In 320, 350, 380 and Slope CR, models the notorious smoothness
of Bomber models has been increased further, thanks to the use
of these newly designed bushings and seals offering a coeffi cient
of friction that is 30% lower than previously obtainable. These
new bushings and seals have proven to give better consistent
performance over 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.
OPEN BATH
RV
AIR SYSTEMS
AER
SPRING PRELOAD
Pos.
Pos.
Pos.
3. INSTALLATION
3.1 Installing on the frame
The fork is supplied with an threadless 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
knowledge, tools and experience. General mechanical aptitude
may not be suffi 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 authorized technical assistance centres,
which have suitable equipment and specifi c knowledge.
N
OTE
There is a protective fi lm to be removed before use to protect the
stickers.
N
OTE
When installing the remote system, only use the cable housing
supplied or similar housing with the same diameter. Only use
derailleur housing. Do not use brake cable housing or any housing
with a spiral wind under the outer coating.
red Rebound
Ti grey Air spring
Ti grey Spring preload
Ti grey Spring preload
requires specialized
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