Marzocchi SHIVER SC Instrucciones de funcionamiento
Shiver
SC
INSTRUCTIONS
GENERAL RULES
1. Where specified, assemble and disas-
semble the suspension system using the
M
ARZOCCHI
special tools only.
2. On reassembling the suspension system,
always use new seals.
3. Clean all metal parts with a special,
preferably biodegradable, solvent such
as trichloroethane or trichloroethylene.
4. Before reassembling, lubricate all parts
in contact with each other using silicone
fat spray or specific seal oil.
5. Always grease the conic seal rings be-
fore reassembling.
6. Use wrenches with metric size only.
Wrenches with inch size might damage
the fastening devices even when their
size is similar to that of the wrenches in
metric size.
Shiver
SC
FAILURES, CAUSES AND REMEDIES
This paragraph reports some troubles that may occur when using the fork. It also indicates possible causes and suggests a remedy. Always
refer to this table before doing any repair work.
FAILURES CAUSES REMEDIES
Oil leaking through wheel shaft pinch bolt O-ring seal on the cartridge nut is
damaged
Replace the O-ring seal
Oil leaking through the dust seal. 1. Oil seal is worn out
2. Stanchion tube is scored
3. Excessive dirt on slider oil seal
1. Replace oil seal
2. Replace oil seal and stanchion tube/
wheel shaft pinch bolt assembly
3. Clean the oil seal seat and replace oil
seal and dust seal
Fork has not been used for some time
and is locked out
Oil seals and dust seals tend to stick to
stanchion tube
Raise dust seal and lubricate stanchion
tube, oil seal and dust seal
Fork compresses and/or rebounds too
fast even though the adjuster is set to
hardest damping position
Hydraulic cartridge is faulty Replace hydraulic cartridge
Adjuster position does not affect fork
operation
Dirt inside legs Clean carefully and change oil
Excessive play of stanchions into the sliders Main slider bushings are worn Replace main slider bushings
Fork does not react to rebound lock LH fork cartridge faulty Replace hydraulic cartridge
Shiver
SC
RECOMMENDATIONS FOR
MAINTENANCE
M
ARZOCCHI
forks are based on advanced
technology, supported by year-long experi-
ence in the field of professional mountain
biking. In order to achieve best results, we
recommend to check and clean the area
below the dust seal and the stanchion tube
after each use and lubricate with silicone
oil.
In general, M
ARZOCCHI
forks can offer top
performance from the start. However, in
some cases a short running-in period is
required (5-10 hours) for inner adjustments.
This running-in period will make fork life
longer and ensure fork top performance
over time.
IMPORTANT: change oil at least every
100 working hours.
Polished forks should be cleaned with
bodywork polish at regular intervals in
order to preserve their original finish.
INSTALLATION
Installing the fork on a bicycle is a very
delicate operation that should be carried
out with extreme care. The installation should
always be checked by one of our Technical
Service Centers.
WARNING: Steer tube/headset
mounting and adjustment must be
carried out in compliance with the headset
manufacturer’s instructions. Improper in-
stallation may jeopardize the safety of the
rider.
To replace it, contact one of our Technical
Service Centers with the required tools.
WARNING: In case of improper
installation of the steer tube into the
crown, the rider might lose control of his/
her bicycle, thus jeopardizing his/her safety.
DISC BRAKE SYSTEM ASSEMBLY
Assembling the brake caliper onto the wheel
shaft pinch bolt is a very delicate operation
that should be carried out with extreme
care.
Improper assembly might overstress the
caliper supports which might break.
When installing the disc brake system, be
sure to properly follow the instructions given
by the manufacturer.
Shiver
SC
FITTING WHEEL
• Insert the complete wheel assembly be-
tween the legs and fit the wheel shaft
(32A) into the wheel shaft pinch bolt
from the right hand side; push down until
it stops against the wheel hub.
• Tighten the wheel shaft screw (32B)
onto the LH to the specified torque.
• Compress the fork several times so the
legs will become properly seated onto
wheel shaft. Lock the screws (29) in the
wheel shaft pinch bolts to the specified
torque.
32A
32B
Nm20
Nm6
29
Shiver
SC
▲
▲
▲
▲
▲
▲
▲
▲
▲
▲
▲
▲
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DISASSEMBLY
GENERAL
– The reference numbers given in this section relate to the components shown in the forks exploded view.
– Before starting any operation, please read the diagram below. It shows the quickest procedure and the exact sequence in which it should
be disassembled. Locate the part you need to remove in the diagram, then look at the arrows to determine which other parts you will
need to remove first.
DISASSEMBLY DIAGRAM
SPRING CHANGE
PRELOAD KNOB FIG. 2
OUTER SLIDER CAP FIG. 4/5
SLEEVE AND SPRING FIG. 6
FORK OIL CHANGE
STOP RING FIG. 3
“LOCK” KNOB FIG. 1 (left leg) FOOT NUT FIG. 7
PILOT BUSHING AND
SEAL ASSEMBLY CHANGE
DUST SEAL FIG. 9
STOP RING FIG. 10
OIL SEAL, UPPER WASHER
AND GUIDE BUSHINGS FIG.11-12
COMPLETE HYDRAULIC CARTRIDGE FIG. 8
HYDRAULIC CARTRIDGE CHANGE
Shiver
SC
19 19
9
35
LOCK
ADJUSTMENTS
SPRING PRELOAD
The spring preload determines COMPRES-
SION damping and can be adjusted by
turning the knob (19) on top of the fork
legs. From the factory the fork is set at
minimum preload, i.e. the adjustment knob
completely unscrewed counterclockwise.
However, the springs are slightly preloaded
to help counteract static loads. By turning
the adjustment knob clockwise, the preload
is increased up to the maximum value equal
to 15 mm’s of spring preload. This adjust-
ment is essential in order to have the right
fork response for the rider’s weight and
riding style.
REBOUND ADJUSTMENT
(only right leg)
The right fork leg is equipped with an
adjuster screw (9) for REBOUND damp-
ing. Turning this adjuster clockwise into the
cartridge rod, changes the hydraulic set-
ting of the inner valves. In short, the amount
of adjustment applied on the piston in the
fluid determines the rate of damping.
To adjust, always start from the minimum
damping setting, i.e. unscrew completely
counterclockwise. About 8 turns - abt. 4 mm
of the adjustment - are possible.
REBOUND LIMITER
(only left leg)
In case of hard uphill path, fork leg rebound
can be locked for improved behavior.
Position the knob (35) on l.h. fork leg top
to “LOCK” to lock rebound limit in this
position; this also allows to decrease fork
leg height for optimal attitude uphill, thus
supporting suspension compression opera-
tion.
Reposition the knob to its original position
so that the fork will rebound and restart to
work as before.
WARNING: do not position to
“LOCK” when riding downhill as
available travel might not be enough, thus
jeopardizing rider’s safety
Shiver
SC
35
36
19 21
20 9
SPRING CHANGE
FIG. 1 (only left leg)
Loosen screw (36) and remove rebound
limiting knob (35).
FIG. 2
Set knob (19) of both legs to minimum
preload.
Loosen dowels (21) fastening the preload
knobs by means of a 1.5 mm Allen wrench.
Remove the knobs from the caps.
FIG. 3
Remove preload knob support (9) stop
rings (20) from the top of the cap using a
small screwdriver.
WARNING: never use the fork with-
out upper cap otherwise the stan-
chion might detach from its slider.
Shiver
SC
22
23
9
22
8
17-46
25
18
FIG. 6
Push the stanchion tubes into the sliders and
remove the upper washer (25), the preload
sleeve (17) or (46) and the spring (18).
Remove all parts and let all the oil drain into
the fork leg. By following this procedure,
there is no need to check the oil level.
Make all necessary changes.
FIG. 4
Unscrew the caps (22) with a 21 mm
socket wrench.
Remove the caps complete with O-ring
(23) from the outer sliders.
FIG. 5
Push down the outer sliders onto the stan-
chion tubes.
Lock the check nut (8) and remove the cap
(22) from hydraulic cartridge top (9).
Shiver
SC
1
2
Dx. Sx.
11 37
3-30
16
3-30
16
27
27
REMOVING HYDRAULIC
CARTRIDGE
FIG. 7
Let all the oil drain out.
WARNING: dispose of exhausted
oil in compliance with current laws.
To change the fork leg oil follow the proce-
dure as described at section FILLING WITH
OIL.
Turn the stanchion tube upside-down and
unscrew the foot nut (1) complete with O-
ring (2) using a 15 mm socket wrench.
FIG. 8
Pull the hydraulic cartridges (11) or (37)
out of the stanchion tube.
Replace the whole hydraulic cartridges.
PILOT BUSHING AND SEAL
ASSEMBLY CHANGE
FIG. 9
Remove dust seal (16) on end of outer
slider (27) using a small screwdriver.
CAUTION: make sure not to score the
stanchions (3) and (30) while removing
the dust seal.
Shiver
SC
15
3-30 14 13 12 27
15 14 13 12 40
16
FIG.10
Slide out stop ring (15) using the same
screwdriver.
CAUTION: make sure not to damage the
slider inner side and the stanchion while
removing the stop ring.
FIG.11
Slide out outer slider (27) from the stan-
chion (3) or (30). Pull components apart
with strength. The seal ring (14), cap (13)
and guide bushing (12) will be thus re-
moved from the slider.
FIG.12
Insert the tip of a flat screwdriver into the
bushing slot to lever and remove guide
bushing (40) from stanchion.
CAUTION: make sure not to score the
stanchion while removing the bushing.
Then remove guide bushing (12), cap
(13), seal ring (14), stop ring (15) and
dust seal (16) from stanchion.
CAUTION: Do not reassemble the seal
rings you have removed.
Before reassembly, check guide bushings
for wear: replace if they show signs of
scoring or scratches.
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