Marzocchi SHIVER SC Instrucciones de funcionamiento

Shiver

INSTRUCTIONS

GENERAL RULES

1. Where specified, assemble and disas-

semble the suspension system using the

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

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

RECOMMENDATIONS FOR

MAINTENANCE

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

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

Shiver

▲

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

19 19

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

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

17-46

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

Dx. Sx.

11 37

3-30

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

3-30 14 13 12 27

15 14 13 12 40

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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