Kerbl 18157 Mode D'emploi page 13

Replacing fork body:
Remove the oil hole cap on the top of the handpiece. Place a small amount of grease onto the roller (ball) and ball race of the fork
body. Place the ball onto the crankshaft (pin) using a pen, screwdriver or other suitable method (Make sure that the flat side of the
roller is facing the crank spindle). Place the crank and roller in the bottom position in the handpiece.
Insert the fork body from the front of the handpiece and over the ball. After it´s confirmed that the center post cup is sitting onto
center post correctly, replace and tighten the safety screw.
Adjusting the center post
The center post has been set in the correct position in the factory and is suitable for any thickness cutter. If it need to be adjusted,
use a half worn cutter (approx 3.5mm) and any thickness comb, Rotate the roller on the crank spindle to the uppermost position and
adjust the center post by either of the following methods.
• Adjusting by hand:
Loosen the center post nut and screw the center post in or out to set the distance from the top of roller to the upper surface of the
ball race on the fork body to 3.65mm. Retighten the center post nut (As shown in illustration 5).
• Adjusting using the post gauge: 8the post gauge is designed specifically to adjust the level of the center post
Loosen the screws and insert the post gauge as per illustration, keeping it at 90 degrees to the handpiece. Turn the center post
until the center of the gauge is level with the gauge top. Retighten the center post nut (Illustration 6).
Setting the tension retaining ring
When fitting the tension retaining spring into the threaded bush, make sure the large curve of the spring faces directly in a clockwise
direction when looking down on the handpiece. Place the spring over the threaded bush and insert the small curved end into the
hole. Ensure the spring is seated properly in the groove of threaded bush.
Caution:
Absence of the tension retaining spring will contribute to loss of tension and could damage the handpiece.
Removing the inner and outer joints
Remove the oil hole cap and place a screwdriver through the hole to stop the crank spindle from turning. Loosen the cogs using
a suitable cog spanner. You can then remove the inner and outer joint from the handle by hand.
Lubricating the back joint caps
The back joint caps, not only keep the dirt and dust out, but also bear most of the weight of the backend movement. Replace if
showing signs of wear. To remove the back joint cap place a screwdriver under the back joint spring and pries it away from the joint.
Remove the joint cap, re-grease and put it back in place. The back joint should be greased periodically.
Illustration 5
Illustration 6