Table of Contents
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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. If two screws are close one to the other,
always tighten using a 1-2-1 sequence.
In short, screw the first screw just up to the
point it is well tightened, then tighten the
second screw and then go back to the
first one and screw it tighter.
4. Clean all metal parts with a special,
preferably biodegradable solvent, such
Super T
as trichloroethane or trichloroethylene.
5. Before reassembling, lubricate all parts
QR20
in contact with each other using silicone
fat spray.
6. Always grease the conic seal rings be-
fore reassembling.
7. 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.
special tools only.
ARZOCCHI
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Summary of Contents for Marzocchi Super T 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. If two screws are close one to the other, always tighten using a 1-2-1 sequence.
- Page 2 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 Excessive oil build up on stanchions 1.
- Page 3 RECOMMENDATIONS FOR INSTALLATION MAINTENANCE Installing the fork on a bicycle is a very MOUNTING THE FORK ON THE delicate operation that should be carried FRAME forks are based on advanced ARZOCCHI out with extreme care. The installation should FIG. A technology, supported by year-long experi- always be checked by one of our Technical Remove the upper crown (1) from steer...
- Page 4 FIG. B FIG. C FIG. D Assemble the fork to the frame complete The stanchions edge (28) must be aligned Fit the handlebar support and the A-Head with headset. Fit the upper crown (1) into with or slightly lower than the upper crown Set cap over the upper crown (1) and then the stanchions and the steer tube.
- Page 5 FIG. E FIG. F If the crown (13) position with respect to Tighten the 4 stanchions (28) fastening the stanchions (28) has been changed for screws (15) onto the crown to 11 Nm. any reason, adjust the original distance. – Distance “H” between crown and tyre WARNING: do not overtighten the edge (when inflated) should not be lower screws holding the stanchions to the...
- Page 6 FRONT WHEEL ASSEMBLY DISC BRAKE SYSTEM ASSEMBLY WARNING: These sliders are spe- Assembling the brake caliper onto the slider IMPORTANT: fixing the front wheel prop- cifically designed to fit this type of is a very delicate operation that should be erly as specified in the instructions given hub.
- Page 7 ADJUSTMENTS SPRING PRELOAD REBOUND DAMPING ADJUSTMENT The spring preload for COMPRESSION The fork legs feature an adjuster (C) for damping can be adjusted by turning the REBOUND damping adjustment. Turning knob (2) on top of fork legs. From the this adjuster clockwise into the cartridge factory the From the factory the fork is set at rod, changes the hydraulic setting of the minimum preload, i.e.
- Page 8 DISASSEMBLY GENERAL – The reference numbers given in this section relate to the components shown in the fork exploded view. – Operations refer to the fork legs already removed from the upper crown and from the crown. – Before starting any operation. please read the diagram below. It shows the quickest procedure and the exact disassembling sequence. Start from the part to be disassembled and then follow the arrows to remove the other parts.
- Page 9 SPRING CHANGE FIG. 2 FIG. 3 FIG. 1 Remove the stop ring (4) from the top of the Place the stanchion tube in a vice. Be sure Set the knob (2) to the minimum preload preload knob support with a small screw- not to damage or squeeze stanchion in the position.
- Page 10 FIG. 4 FIG. 5 HYDRAULIC CARTRIDGE CHANGE Unscrew the cap (5) from the cartridge Push the stanchion tube into the slider and FIG. 6 (21) rod. remove the top washer (8), the preload Let all the oil drain out. sleeve (9), the spring (10), the second washer (8) and the other spring (37).
- Page 11 FIG. 7 GUIDE BUSHING AND SEAL FIG. 9 Pull the hydraulic cartridge (21) complete ASSEMBLY CHANGE Use a small screwdriver and remove the with foot washer (36, see exploded view) FIG. 8 dust seal (22) from slider top. out of the stanchion tube. Pull the stanchion tube (28) completely out Replace the whole hydraulic cartridge.
- Page 12 FIG. 10 FIG. 11 FIG. 12 Remove the stop ring (23) from the slider Fit the slider protector (A) onto the slider Remove the upper washer (25) from the by placing the screwdriver bit in one of the and remove the oil seal (24) with the help slider.
- Page 13 FIG. 13 Fit the bit of a small screwdriver into the upper edge slot of the guide bushing (26) and lift gently. Pull the bushing out of the slider and make all necessary changes. Super T QR20...
- Page 14 REASSEMBLY FIG. 15 FIG. 16 CAUTION: before reassembling, all metal Fit the upper washer (25) into the slider so Lubricate the oil seal (24) and place it onto components should be washed carefully that it touches the guide bushing. the seal press (B) with the hollow side with inflammable and biodegradable sol- toward the slider.
- Page 15 FIG. 17 FIG. 18 FIG. 19 Insert the stop ring (23) into the slider Lubricate the dust seal (22) and fit it into the Fit the stanchion tube (28) gently into the oil making sure it is properly seated into place. stanchion from the spring end.
- Page 16 HYDRAULIC CARTRIDGE FIG. 21 HOW TO FILL WITH OIL FIG. 20 Grease the O-ring (34) on the foot nut (35) FIG. 22 Insert washer (36, see exploded view) and screw the nut on the hydraulic cartridge Pour the oil little by little when the stanchion together with the complete hydraulic car- threaded end.
- Page 17 SPRING AND CAP FIG. 24 FIG. 25 FIG. 23 Move the plunger (7, see exploded view), Take out stanchions and fit caps (5) by Fit the spring (37), the washer (8), the in the cap, to the minimum preload posi- hand.
- Page 18 FIG. 26 FIG. 27 Fit the stop ring (4) of the preload knob Fit the preload knob (2) and secure it on the support and make sure it is properly seated support by tightening the grub screw (3) to into place. 1.5 Nm.
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