Open the cover of the supply pump with a slotted screwdriver.

Once the pump is exposed, turn down cam arms on pump and remove hose.

Remove the cover of the can arms.

There is a bolt holding the can arm assembly in-place. Remove this bolt and pull the can arm assembly out of the housing and flip over.

There are dials at the base of each arm. Adjust the dial negative for a tighter cam and positive for a loose cam.

Reverse steps to reinstall pump.