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INSTRUCTIONS
GENERAL RULES
1. Where specified, assemble and disas-
semble the shock absorption system us-
ing the M
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
Z1
fat spray or a specific oil for seals.
5. Always grease the lip seal rings before
reassembling.
Drop-Off
6. Use wrenches with metric size only.
Wrenches with inch size might damage
QR20
the fastening devices even when their
size is similar to that of the wrenches in
metric size.
special tools only.
ARZOCCHI
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Table of Contents
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Summary of Contents for Marzocchi Z1 Drop-Off QR20
- Page 1 INSTRUCTIONS GENERAL RULES 1. Where specified, assemble and disas- semble the shock absorption system us- ing the M special tools only. ARZOCCHI 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.
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Page 2: Failures, Causes And Remedies
FAILURES, CAUSES AND REMEDIES This paragraph reports some failures 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 though the top of slider 1. -
Page 3: Recommendations For Maintenance
RECOMMENDATIONS FOR MAINTENANCE forks are based on advanced ARZOCCHI 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. -
Page 4: Installation
INSTALLATION Lock the quick release lever (B) and make DISC BRAKE SYSTEM ASSEMBLY Installing the fork on a bicycle is a very sure the bushings (A) are properly seated WARNING: If a disc brake system delicate operation that should be carried in the sliders. -
Page 5: Spring Preload
ADJUSTMENT SPRING PRELOAD REBOUND ADJUSTMENT Spring preload determines COMPRESSION Each fork leg is equipped with an adjuster damping and is adjusted by turning the screw (C) for REBOUND damping at slider adjustment knob (3) on the top of the fork bottom. -
Page 6: Disassembly Diagram
DISASSEMBLY GENERAL – The reference numbers given in this section relate to the components shown in the fork exploded view. – Before starting any operation. please read the diagram below. It shows the quickest procedure and the exact disassembling sequence. Locate the part you need to remove in the diagram, then look at the arrows to determine which other parts you need to remove first. - Page 7 SPRING CHANGE FIG. 2 PILOT BUSHING AND SEAL FIG. 1 Push the stanchions into the sliders and ASSEMBLY CHANGE Unscrew the caps (4) with a 21 mm socket remove the lower washer (11) and the FIG. 3 wrench. spring (12) from each fork leg. Turn fork legs upside down and press Remove the caps complete with O-ring (5) Drain all oil from the fork legs.
- Page 8 FIG. 4 FIG. 5 FIG. 6 Remove foot nuts (30) with a socket wrench. Withdraw the crown and stanchions as- Remove the dust seal (19) from the top of sembly (1) from the sliders. the sliders using a small screwdriver. Drop-Off QR20...
- Page 9 FIG. 7 FIG. 8 FIG. 9 Remove the stop ring (20) from the sliders Fit the slider protector (A) onto the slider Remove the upper washer (22) from the by placing the screwdriver bit in one of the and remove the oil seal (21) with the help slider.
- Page 10 FIG. 10 REPLACING PUMPING ELEMENT FIG. 12 Fit the bit of a small screwdriver into upper SEALS Remove the stop ring (35) from pumping edge slot of the pilot bushing (23) and lift FIG. 11 element bottom (14) with a small flat gently.
- Page 11 VALVE ASSEMBLY CHANGE FIG. 13 To check that the valve assembly is operat- ing correctly, it is necessary to work on the inside of the stanchion tube. Slip off the stop ring (17) using pointed pliers. Pull the valve assembly out of the tube with one finger in this sequence: pocket (39), valve (38), rebound spring (37) and washer (16).
- Page 12 REASSEMBLY CAUTION: before reassembling, all metal FIG. 15 FIG. 16 components should be washed carefully Fit the upper washer (22) into the slider so Lubricate the oil seal (21) and place it onto with inflammable, preferably biodegrad- that it touches the pilot bushing. the seal press (B) with the hollow side able, solvent and dried with compressed toward the slider.
- Page 13 FIG. 17 FIG. 18 PUMPING ROD ASSEMBLY Insert the stop ring (20) into the slider Lubricate the dust seals (19) and fit them FIG. 19 making sure it is properly seated into place. into the stanchions from the spring end. Lubricate the O-ring (29) and fit inner rod Use buffer (B) to properly seat the ring into threaded end into pumping element (14).
- Page 14 VALVE AND PUMPING ROD FIG. 21 FIG. 22 ASSEMBLY Lubricate O-rings(25-26) and reassemble Fit this assembly into the stanchion tube and FIG. 20 the foot buffer (18) onto the end part of properly seat the valve assembly (C). After having overhauled or replaced the pumping rod (14).
- Page 15 CROWN AND STANCHIONS FIG. 24 FIG. 25 ASSEMBLY Screw the foot nut (30) on the pumping rod Fit the retainer (D) into the slider (E) to FIG. 23 thread (14). reassemly the adjuster unit (32). Fit the crown and stanchions assembly (1) Tighten to 11 Nm.
- Page 16 HOW TO FILL WITH OIL SPRING AND CAP FIG. 28 FIG. 26 FIG. 27 Lubricate the O-ring (5) on the cap (4). Pour oil little by little when the stanchions Fit the springs (12) into each stanchion Turn the preload adjuster (9) counterclock- are fully down and then pump with the tube.
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