©2010
Note: The right and le pedals of a bicycle each have a dierent thread and are not interchangeable.
Never force a pedal into the incorrect crank arm.
The right pedal, which aaches to the chainwheel side, is marked ‘R’ on the end of the
axle, and screws in with a clockwise thread. The le pedal, which aaches to the other crank arm, is marked ‘L’ on the axle, and screws in
with a counter-clockwise thread.
Insert the correct pedal into the crank arm and begin to turn the thread with your ngers only. When the axle is screwed all the way in,
securely ghten using a 15mm wrench. NOTE: Never try and force a pedal with the wrong thread size into a bicycle crank.
Crank Set
The crank set refers to the boom bracket axle and bearings, the crank arms, and chainrings. Your bike may be ed with either a one
piece crank, where the crank arms are connected as a single piece, or 3 piece cranks, where the crank arms bolt onto the boom bracket
axle. Never ride your bike if the cranks are loose. This may be dangerous and will damage the crank arms beyond repair.
Inspecon
The crank set should be checked for correct adjustment and ghtness every month. Boom bracket bearings must be properly adjusted,
and pedals should be ght. Remove the chain and try to move the cranks from side to side with your hands. The cranks should not move
on the axle, and there should be only very slight movement in the boom bracket. Next, spin the cranks. If they don’t spin freely without
grinding noise, then adjustment or lubricaon will be needed. Also check that there are no broken teeth on the chainrings, and wipe o
excess dirt and grease that may have built up on them.
Lubricaon and adjustment - One Piece Cranks
To adjust the free play in a one piece type boom bracket, loosen the locknut on the le side by turning it clockwise and ghten the adjusng
cone counter-clockwise using a screwdriver in the slot. When correctly adjusted, re-ghten the locknut counterclockwise. (Fig. 4.10)
MAINTENANCE
4.5