Gary Fisher Cronos, Service Information

Page 1: ...cronus 2010 service information...

Page 2: ...r additional assembly techniques provided here Carbon fiber care Headset bearing installation Front hub and fork integration Bottom bracket bearing installation for a variety of bottom bracket types C...

Page 3: ...pecting the Headset 6 Fender Installation 7 FCC Steering System 9 Crankset Installation 10 SRAM GXP 11 Shimano HollowTech 14 Campagnolo UltraTorque 18 Inspecting the bottom bracket 20 FSA MegaExo AL 2...

Page 4: ...corrosion When making adjustments always grease the threads and shoulders of bolts Grease reduces corrosion and allows you to achieve the correct tightness without damaging tools However with most car...

Page 5: ...nts Place at least two spacers under the stem two 5mm spacers are acceptable Do not stack more than 40mm of spacers Use a stem with circumferential clamps never use a wedge type stem Use the correct t...

Page 6: ...steer tube and the inside corner Figure 4 This can be done with a shoeshine movement or by rotating and reciprocation with the sandpaper 9 Remove the fork from the saw guide 10 Inspect for frayed loos...

Page 7: ...not use a hammer to install the bearings Make sure the stem clamp is designed correctly and is free of burrs If you choose to cut the steerer follow all normal procedures and cautions regarding carbo...

Page 8: ...at of grease to the bearing seats of the head tube both top and bottom Figure 7 4 Slide the steerer with the bearing installed through the head tube Figure 8 5 Slide the upper bearing down the steerer...

Page 9: ...he headset will rotate freely with a wide range of tension Make sure there is no free play but do not overtighten the bearings because they might wear prematurely 7 Tighten the stem clamp bolts to the...

Page 10: ...lling the eyelets 1 With a 25mm hex remove the plugs that cover the threaded holes in the rear dropouts and fork tips Figure 12 2 Thread a locknut onto each eyelet and thread the eyelet into the dropo...

Page 11: ...of the fender and thread it into the frame Figure 16 Tighten to 40 60 Lb in 4 5 6 8 Nm 3 Put the wheels back onto the bike 4 Attach the fender struts to the fenders and eyelets Figure 17 5 Adjust the...

Page 12: ...diameter end caps on hub Another way to increase steering precision is to reduce fork leg twist that occurs as the fork is loaded laterally and torsionally like what occurs when the bike is cornering...

Page 13: ...required Crankset and bottom bracket 8 mm allen wrench Bearing installation tool PN 404694 Rock N Roll Super Coat grease Bottom bracket parts TruVativ GXP installation instructions Do not install axle...

Page 14: ...ll Figure 23 To remove the installation tool press the release tab 4 Repeat steps 1 3 for the other bearing on the non drive side Figure 24 Greasing the bearing covers Figure 23 Pressing the bearing i...

Page 15: ...is designed to be a slip fit However after the first installation some bearings might be tight If the bearings do not easily come out by hand you may use the following method to remove them 1 Slide th...

Page 16: ...803 SI_1F30H_En_v1_m56577569830605111 pdf Tools and materials required Crankset and bottom bracket Shimano FC16 crank arm installation tool 5 mm Allen Wrench Bearing installation tool PN 404694 Rock N...

Page 17: ...30 2 Slide a bearing onto the installation tool Either side of the bearing is the right side 3 Press one bearing into the drive side of the bottom bracket shell Figure 31 To remove the installation t...

Page 18: ...up slide the bearing seal onto the axle Figure 33 4 Apply a light coat of grease to the bearing contact area of the axle Figure 34 The grease areas should be about 1 inch 25 mm wide On the drive side...

Page 19: ...er the first installation some bearings might be tight If the bearings do not easily come out by hand you may use the following method to remove them 1 Slide the crank axle into the bearing so that th...

Page 20: ...eats are clean and free of debris Tools and materials required To complete the installation you will also need the Campagnolo instructions available at http www campagnolo com pdf 7225306_Ultra_torque...

Page 21: ...at into the frame Figure 41 If needed tap lightly with a soft faced mallet Let the LocTite cure for at least 24 hours before inserting the bearings Figure 41 Inserting the bearing cups into the bottom...

Page 22: ...and tighten to 380 Lb In 43 N m 6 Follow the steps in Inspecting the bottom bracket To remove the bottom bracket bearings With the Campagnolo system each of the two bearings are pressed onto one of t...

Page 23: ...mmer or bearing press to install the bearings into the frame If the bearing fit is too tight make sure the bearings are clean and free of debris Tools and materials required To complete the installati...

Page 24: ...drive side crankarm 1 Apply a light coat of grease to the axle surface where the bearings will be in contact Figure 50 The grease areas should be about 1 inch 25 mm wide On the drive side start at the...

Page 25: ...ou may use the following method to remove them 1 Slide the crank axle into the bearing so that the bearing is over the non drive side of the axle about 1 inch 25 mm from the non drive end 2 Gently roc...

Page 26: ...y that the crank has been tightened to 420 480 Lb In 50 57 Nm Most issues with play in GXP crankarms are resolved when the arms are properly tightened If this does not solve the issue add a 0 5mm wash...

Page 27: ...earing not seated properly A tight bore can cause the installer to think the bearing is seated when it is not When properly installed the bearing will not sit even with bottom bracket shell Enduro bea...