Bedienungsanleitung Trek 2012 (Seite 73 von 77) (Englisch)

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70 TREK ASSEMBLY MANUAL 27 April 2012

Supporting Information

Parts Lubrication

Loctite Applications

We use Loctite, or similar product, in a variety of applications in fabrication and

assembly of our bikes. Here’s a partial list, and the recommended Loctite product:

Crown pinch bolts 242 Blue

Brake arch bolts 242 Blue

Cantilever studs 242 Blue

Pivot axle bolt 290 Green

Pivot bushings: Frame/swingarm 290 Green or RC 680

Shock mount bolts 242 Blue

Airhead bearings RC-680

Use Loctite carefully. Follow the instructions on the package, avoiding contact with

your skin, or inhaling the vapors. As noted on the package, Loctite contains a known

carcinogen.

For Loctite to work correctly, the parts must be clean and dry, with no grease, oil, or

dirt. Loctite Kleen ‘N Prime is an excellent cleaner and will reduce xture time.

With blue 242 Loctite, apply to the threads prior to assembly. It will set up in 20

minutes, with full cure taking 24 hours. With green 290 Loctite, application is

recommended after assembly. However, this can be impractical with hidden threads,

like on the rear suspension pivot bolts, or when using as a xing agent for Klein

bottom brackets or rear suspension bushings. 290 is set in 3 minutes, and again

requires 24 hours for a full cure. Please do not confuse Loctite 290 with Loctite 640

or 680, which are also green, as these can make disassembly much more dicult.

Recommended Grease Applications

Most threaded fasteners will benet from the application of a light grease-type

lubricant. This prevents corrosion and galling, as well as allowing a tighter t with

a given torque. For this reason, it’s a good idea to lubricate almost all threaded

fasteners. But some fasteners and parts interfaces really need grease.

When lubricating parts for assembly, only a thin lm of lubricant is necessary. Any

excess lube must be removed or it will attract dirt.

•Seatpost/seat tube interface . Grease the seatpost where it inserts into the frame on

all aluminum and steel frames.

•Bottom bracket threads . We recommend applying grease to all bottom bracket/

frame interfaces, as well as the bearing/cup interfaces. This prevents corrosion and

will virtually eliminate creaks, a common complaint among riders with cartridge

bottom brackets.

•Stem/steerer interface . Grease the quill of conventional stems where they insert

into the fork. With Aheadset type stems, a light oil is recommended with metal

steerers, as grease may make it difficult to properly secure this type of stem to the

steerer.

•Stem/handlebar/bar end pinch bolts . Any and all of these fasteners are small, so

corrosion or galling can really cause problems. For the safety of the rider its also

critical that the bolts are correctly tightened. Grease the threads as well as the

bearing surface of the fasteners, where the bolts rotate against the fixed part.

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Trek 2012 Seite 73

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